| #!/bin/sh | 
 | # Tcl ignores the next line -*- tcl -*- \ | 
 | exec wish "$0" -- "$@" | 
 |  | 
 | # Copyright (C) 2005-2006 Paul Mackerras.  All rights reserved. | 
 | # This program is free software; it may be used, copied, modified | 
 | # and distributed under the terms of the GNU General Public Licence, | 
 | # either version 2, or (at your option) any later version. | 
 |  | 
 | proc gitdir {} { | 
 |     global env | 
 |     if {[info exists env(GIT_DIR)]} { | 
 | 	return $env(GIT_DIR) | 
 |     } else { | 
 | 	return [exec git rev-parse --git-dir] | 
 |     } | 
 | } | 
 |  | 
 | # A simple scheduler for compute-intensive stuff. | 
 | # The aim is to make sure that event handlers for GUI actions can | 
 | # run at least every 50-100 ms.  Unfortunately fileevent handlers are | 
 | # run before X event handlers, so reading from a fast source can | 
 | # make the GUI completely unresponsive. | 
 | proc run args { | 
 |     global isonrunq runq | 
 |  | 
 |     set script $args | 
 |     if {[info exists isonrunq($script)]} return | 
 |     if {$runq eq {}} { | 
 | 	after idle dorunq | 
 |     } | 
 |     lappend runq [list {} $script] | 
 |     set isonrunq($script) 1 | 
 | } | 
 |  | 
 | proc filerun {fd script} { | 
 |     fileevent $fd readable [list filereadable $fd $script] | 
 | } | 
 |  | 
 | proc filereadable {fd script} { | 
 |     global runq | 
 |  | 
 |     fileevent $fd readable {} | 
 |     if {$runq eq {}} { | 
 | 	after idle dorunq | 
 |     } | 
 |     lappend runq [list $fd $script] | 
 | } | 
 |  | 
 | proc dorunq {} { | 
 |     global isonrunq runq | 
 |  | 
 |     set tstart [clock clicks -milliseconds] | 
 |     set t0 $tstart | 
 |     while {$runq ne {}} { | 
 | 	set fd [lindex $runq 0 0] | 
 | 	set script [lindex $runq 0 1] | 
 | 	set repeat [eval $script] | 
 | 	set t1 [clock clicks -milliseconds] | 
 | 	set t [expr {$t1 - $t0}] | 
 | 	set runq [lrange $runq 1 end] | 
 | 	if {$repeat ne {} && $repeat} { | 
 | 	    if {$fd eq {} || $repeat == 2} { | 
 | 		# script returns 1 if it wants to be readded | 
 | 		# file readers return 2 if they could do more straight away | 
 | 		lappend runq [list $fd $script] | 
 | 	    } else { | 
 | 		fileevent $fd readable [list filereadable $fd $script] | 
 | 	    } | 
 | 	} elseif {$fd eq {}} { | 
 | 	    unset isonrunq($script) | 
 | 	} | 
 | 	set t0 $t1 | 
 | 	if {$t1 - $tstart >= 80} break | 
 |     } | 
 |     if {$runq ne {}} { | 
 | 	after idle dorunq | 
 |     } | 
 | } | 
 |  | 
 | # Start off a git rev-list process and arrange to read its output | 
 | proc start_rev_list {view} { | 
 |     global startmsecs | 
 |     global commfd leftover tclencoding datemode | 
 |     global viewargs viewfiles commitidx | 
 |     global lookingforhead showlocalchanges | 
 |  | 
 |     set startmsecs [clock clicks -milliseconds] | 
 |     set commitidx($view) 0 | 
 |     set order "--topo-order" | 
 |     if {$datemode} { | 
 | 	set order "--date-order" | 
 |     } | 
 |     if {[catch { | 
 | 	set fd [open [concat | git log -z --pretty=raw $order --parents \ | 
 | 			 --boundary $viewargs($view) "--" $viewfiles($view)] r] | 
 |     } err]} { | 
 | 	error_popup "Error executing git rev-list: $err" | 
 | 	exit 1 | 
 |     } | 
 |     set commfd($view) $fd | 
 |     set leftover($view) {} | 
 |     set lookingforhead $showlocalchanges | 
 |     fconfigure $fd -blocking 0 -translation lf -eofchar {} | 
 |     if {$tclencoding != {}} { | 
 | 	fconfigure $fd -encoding $tclencoding | 
 |     } | 
 |     filerun $fd [list getcommitlines $fd $view] | 
 |     nowbusy $view | 
 | } | 
 |  | 
 | proc stop_rev_list {} { | 
 |     global commfd curview | 
 |  | 
 |     if {![info exists commfd($curview)]} return | 
 |     set fd $commfd($curview) | 
 |     catch { | 
 | 	set pid [pid $fd] | 
 | 	exec kill $pid | 
 |     } | 
 |     catch {close $fd} | 
 |     unset commfd($curview) | 
 | } | 
 |  | 
 | proc getcommits {} { | 
 |     global phase canv mainfont curview | 
 |  | 
 |     set phase getcommits | 
 |     initlayout | 
 |     start_rev_list $curview | 
 |     show_status "Reading commits..." | 
 | } | 
 |  | 
 | proc getcommitlines {fd view}  { | 
 |     global commitlisted | 
 |     global leftover commfd | 
 |     global displayorder commitidx commitrow commitdata | 
 |     global parentlist children curview hlview | 
 |     global vparentlist vdisporder vcmitlisted | 
 |  | 
 |     set stuff [read $fd 500000] | 
 |     # git log doesn't terminate the last commit with a null... | 
 |     if {$stuff == {} && $leftover($view) ne {} && [eof $fd]} { | 
 | 	set stuff "\0" | 
 |     } | 
 |     if {$stuff == {}} { | 
 | 	if {![eof $fd]} { | 
 | 	    return 1 | 
 | 	} | 
 | 	global viewname | 
 | 	unset commfd($view) | 
 | 	notbusy $view | 
 | 	# set it blocking so we wait for the process to terminate | 
 | 	fconfigure $fd -blocking 1 | 
 | 	if {[catch {close $fd} err]} { | 
 | 	    set fv {} | 
 | 	    if {$view != $curview} { | 
 | 		set fv " for the \"$viewname($view)\" view" | 
 | 	    } | 
 | 	    if {[string range $err 0 4] == "usage"} { | 
 | 		set err "Gitk: error reading commits$fv:\ | 
 | 			bad arguments to git rev-list." | 
 | 		if {$viewname($view) eq "Command line"} { | 
 | 		    append err \ | 
 | 			"  (Note: arguments to gitk are passed to git rev-list\ | 
 | 			 to allow selection of commits to be displayed.)" | 
 | 		} | 
 | 	    } else { | 
 | 		set err "Error reading commits$fv: $err" | 
 | 	    } | 
 | 	    error_popup $err | 
 | 	} | 
 | 	if {$view == $curview} { | 
 | 	    run chewcommits $view | 
 | 	} | 
 | 	return 0 | 
 |     } | 
 |     set start 0 | 
 |     set gotsome 0 | 
 |     while 1 { | 
 | 	set i [string first "\0" $stuff $start] | 
 | 	if {$i < 0} { | 
 | 	    append leftover($view) [string range $stuff $start end] | 
 | 	    break | 
 | 	} | 
 | 	if {$start == 0} { | 
 | 	    set cmit $leftover($view) | 
 | 	    append cmit [string range $stuff 0 [expr {$i - 1}]] | 
 | 	    set leftover($view) {} | 
 | 	} else { | 
 | 	    set cmit [string range $stuff $start [expr {$i - 1}]] | 
 | 	} | 
 | 	set start [expr {$i + 1}] | 
 | 	set j [string first "\n" $cmit] | 
 | 	set ok 0 | 
 | 	set listed 1 | 
 | 	if {$j >= 0 && [string match "commit *" $cmit]} { | 
 | 	    set ids [string range $cmit 7 [expr {$j - 1}]] | 
 | 	    if {[string match {[-<>]*} $ids]} { | 
 | 		switch -- [string index $ids 0] { | 
 | 		    "-" {set listed 0} | 
 | 		    "<" {set listed 2} | 
 | 		    ">" {set listed 3} | 
 | 		} | 
 | 		set ids [string range $ids 1 end] | 
 | 	    } | 
 | 	    set ok 1 | 
 | 	    foreach id $ids { | 
 | 		if {[string length $id] != 40} { | 
 | 		    set ok 0 | 
 | 		    break | 
 | 		} | 
 | 	    } | 
 | 	} | 
 | 	if {!$ok} { | 
 | 	    set shortcmit $cmit | 
 | 	    if {[string length $shortcmit] > 80} { | 
 | 		set shortcmit "[string range $shortcmit 0 80]..." | 
 | 	    } | 
 | 	    error_popup "Can't parse git log output: {$shortcmit}" | 
 | 	    exit 1 | 
 | 	} | 
 | 	set id [lindex $ids 0] | 
 | 	if {$listed} { | 
 | 	    set olds [lrange $ids 1 end] | 
 | 	    set i 0 | 
 | 	    foreach p $olds { | 
 | 		if {$i == 0 || [lsearch -exact $olds $p] >= $i} { | 
 | 		    lappend children($view,$p) $id | 
 | 		} | 
 | 		incr i | 
 | 	    } | 
 | 	} else { | 
 | 	    set olds {} | 
 | 	} | 
 | 	if {![info exists children($view,$id)]} { | 
 | 	    set children($view,$id) {} | 
 | 	} | 
 | 	set commitdata($id) [string range $cmit [expr {$j + 1}] end] | 
 | 	set commitrow($view,$id) $commitidx($view) | 
 | 	incr commitidx($view) | 
 | 	if {$view == $curview} { | 
 | 	    lappend parentlist $olds | 
 | 	    lappend displayorder $id | 
 | 	    lappend commitlisted $listed | 
 | 	} else { | 
 | 	    lappend vparentlist($view) $olds | 
 | 	    lappend vdisporder($view) $id | 
 | 	    lappend vcmitlisted($view) $listed | 
 | 	} | 
 | 	set gotsome 1 | 
 |     } | 
 |     if {$gotsome} { | 
 | 	run chewcommits $view | 
 |     } | 
 |     return 2 | 
 | } | 
 |  | 
 | proc chewcommits {view} { | 
 |     global curview hlview commfd | 
 |     global selectedline pending_select | 
 |  | 
 |     set more 0 | 
 |     if {$view == $curview} { | 
 | 	set allread [expr {![info exists commfd($view)]}] | 
 | 	set tlimit [expr {[clock clicks -milliseconds] + 50}] | 
 | 	set more [layoutmore $tlimit $allread] | 
 | 	if {$allread && !$more} { | 
 | 	    global displayorder commitidx phase | 
 | 	    global numcommits startmsecs | 
 |  | 
 | 	    if {[info exists pending_select]} { | 
 | 		set row [first_real_row] | 
 | 		selectline $row 1 | 
 | 	    } | 
 | 	    if {$commitidx($curview) > 0} { | 
 | 		#set ms [expr {[clock clicks -milliseconds] - $startmsecs}] | 
 | 		#puts "overall $ms ms for $numcommits commits" | 
 | 	    } else { | 
 | 		show_status "No commits selected" | 
 | 	    } | 
 | 	    notbusy layout | 
 | 	    set phase {} | 
 | 	} | 
 |     } | 
 |     if {[info exists hlview] && $view == $hlview} { | 
 | 	vhighlightmore | 
 |     } | 
 |     return $more | 
 | } | 
 |  | 
 | proc readcommit {id} { | 
 |     if {[catch {set contents [exec git cat-file commit $id]}]} return | 
 |     parsecommit $id $contents 0 | 
 | } | 
 |  | 
 | proc updatecommits {} { | 
 |     global viewdata curview phase displayorder | 
 |     global children commitrow selectedline thickerline showneartags | 
 |  | 
 |     if {$phase ne {}} { | 
 | 	stop_rev_list | 
 | 	set phase {} | 
 |     } | 
 |     set n $curview | 
 |     foreach id $displayorder { | 
 | 	catch {unset children($n,$id)} | 
 | 	catch {unset commitrow($n,$id)} | 
 |     } | 
 |     set curview -1 | 
 |     catch {unset selectedline} | 
 |     catch {unset thickerline} | 
 |     catch {unset viewdata($n)} | 
 |     readrefs | 
 |     changedrefs | 
 |     if {$showneartags} { | 
 | 	getallcommits | 
 |     } | 
 |     showview $n | 
 | } | 
 |  | 
 | proc parsecommit {id contents listed} { | 
 |     global commitinfo cdate | 
 |  | 
 |     set inhdr 1 | 
 |     set comment {} | 
 |     set headline {} | 
 |     set auname {} | 
 |     set audate {} | 
 |     set comname {} | 
 |     set comdate {} | 
 |     set hdrend [string first "\n\n" $contents] | 
 |     if {$hdrend < 0} { | 
 | 	# should never happen... | 
 | 	set hdrend [string length $contents] | 
 |     } | 
 |     set header [string range $contents 0 [expr {$hdrend - 1}]] | 
 |     set comment [string range $contents [expr {$hdrend + 2}] end] | 
 |     foreach line [split $header "\n"] { | 
 | 	set tag [lindex $line 0] | 
 | 	if {$tag == "author"} { | 
 | 	    set audate [lindex $line end-1] | 
 | 	    set auname [lrange $line 1 end-2] | 
 | 	} elseif {$tag == "committer"} { | 
 | 	    set comdate [lindex $line end-1] | 
 | 	    set comname [lrange $line 1 end-2] | 
 | 	} | 
 |     } | 
 |     set headline {} | 
 |     # take the first non-blank line of the comment as the headline | 
 |     set headline [string trimleft $comment] | 
 |     set i [string first "\n" $headline] | 
 |     if {$i >= 0} { | 
 | 	set headline [string range $headline 0 $i] | 
 |     } | 
 |     set headline [string trimright $headline] | 
 |     set i [string first "\r" $headline] | 
 |     if {$i >= 0} { | 
 | 	set headline [string trimright [string range $headline 0 $i]] | 
 |     } | 
 |     if {!$listed} { | 
 | 	# git rev-list indents the comment by 4 spaces; | 
 | 	# if we got this via git cat-file, add the indentation | 
 | 	set newcomment {} | 
 | 	foreach line [split $comment "\n"] { | 
 | 	    append newcomment "    " | 
 | 	    append newcomment $line | 
 | 	    append newcomment "\n" | 
 | 	} | 
 | 	set comment $newcomment | 
 |     } | 
 |     if {$comdate != {}} { | 
 | 	set cdate($id) $comdate | 
 |     } | 
 |     set commitinfo($id) [list $headline $auname $audate \ | 
 | 			     $comname $comdate $comment] | 
 | } | 
 |  | 
 | proc getcommit {id} { | 
 |     global commitdata commitinfo | 
 |  | 
 |     if {[info exists commitdata($id)]} { | 
 | 	parsecommit $id $commitdata($id) 1 | 
 |     } else { | 
 | 	readcommit $id | 
 | 	if {![info exists commitinfo($id)]} { | 
 | 	    set commitinfo($id) {"No commit information available"} | 
 | 	} | 
 |     } | 
 |     return 1 | 
 | } | 
 |  | 
 | proc readrefs {} { | 
 |     global tagids idtags headids idheads tagobjid | 
 |     global otherrefids idotherrefs mainhead mainheadid | 
 |  | 
 |     foreach v {tagids idtags headids idheads otherrefids idotherrefs} { | 
 | 	catch {unset $v} | 
 |     } | 
 |     set refd [open [list | git show-ref -d] r] | 
 |     while {[gets $refd line] >= 0} { | 
 | 	if {[string index $line 40] ne " "} continue | 
 | 	set id [string range $line 0 39] | 
 | 	set ref [string range $line 41 end] | 
 | 	if {![string match "refs/*" $ref]} continue | 
 | 	set name [string range $ref 5 end] | 
 | 	if {[string match "remotes/*" $name]} { | 
 | 	    if {![string match "*/HEAD" $name]} { | 
 | 		set headids($name) $id | 
 | 		lappend idheads($id) $name | 
 | 	    } | 
 | 	} elseif {[string match "heads/*" $name]} { | 
 | 	    set name [string range $name 6 end] | 
 | 	    set headids($name) $id | 
 | 	    lappend idheads($id) $name | 
 | 	} elseif {[string match "tags/*" $name]} { | 
 | 	    # this lets refs/tags/foo^{} overwrite refs/tags/foo, | 
 | 	    # which is what we want since the former is the commit ID | 
 | 	    set name [string range $name 5 end] | 
 | 	    if {[string match "*^{}" $name]} { | 
 | 		set name [string range $name 0 end-3] | 
 | 	    } else { | 
 | 		set tagobjid($name) $id | 
 | 	    } | 
 | 	    set tagids($name) $id | 
 | 	    lappend idtags($id) $name | 
 | 	} else { | 
 | 	    set otherrefids($name) $id | 
 | 	    lappend idotherrefs($id) $name | 
 | 	} | 
 |     } | 
 |     catch {close $refd} | 
 |     set mainhead {} | 
 |     set mainheadid {} | 
 |     catch { | 
 | 	set thehead [exec git symbolic-ref HEAD] | 
 | 	if {[string match "refs/heads/*" $thehead]} { | 
 | 	    set mainhead [string range $thehead 11 end] | 
 | 	    if {[info exists headids($mainhead)]} { | 
 | 		set mainheadid $headids($mainhead) | 
 | 	    } | 
 | 	} | 
 |     } | 
 | } | 
 |  | 
 | # skip over fake commits | 
 | proc first_real_row {} { | 
 |     global nullid nullid2 displayorder numcommits | 
 |  | 
 |     for {set row 0} {$row < $numcommits} {incr row} { | 
 | 	set id [lindex $displayorder $row] | 
 | 	if {$id ne $nullid && $id ne $nullid2} { | 
 | 	    break | 
 | 	} | 
 |     } | 
 |     return $row | 
 | } | 
 |  | 
 | # update things for a head moved to a child of its previous location | 
 | proc movehead {id name} { | 
 |     global headids idheads | 
 |  | 
 |     removehead $headids($name) $name | 
 |     set headids($name) $id | 
 |     lappend idheads($id) $name | 
 | } | 
 |  | 
 | # update things when a head has been removed | 
 | proc removehead {id name} { | 
 |     global headids idheads | 
 |  | 
 |     if {$idheads($id) eq $name} { | 
 | 	unset idheads($id) | 
 |     } else { | 
 | 	set i [lsearch -exact $idheads($id) $name] | 
 | 	if {$i >= 0} { | 
 | 	    set idheads($id) [lreplace $idheads($id) $i $i] | 
 | 	} | 
 |     } | 
 |     unset headids($name) | 
 | } | 
 |  | 
 | proc show_error {w top msg} { | 
 |     message $w.m -text $msg -justify center -aspect 400 | 
 |     pack $w.m -side top -fill x -padx 20 -pady 20 | 
 |     button $w.ok -text OK -command "destroy $top" | 
 |     pack $w.ok -side bottom -fill x | 
 |     bind $top <Visibility> "grab $top; focus $top" | 
 |     bind $top <Key-Return> "destroy $top" | 
 |     tkwait window $top | 
 | } | 
 |  | 
 | proc error_popup msg { | 
 |     set w .error | 
 |     toplevel $w | 
 |     wm transient $w . | 
 |     show_error $w $w $msg | 
 | } | 
 |  | 
 | proc confirm_popup msg { | 
 |     global confirm_ok | 
 |     set confirm_ok 0 | 
 |     set w .confirm | 
 |     toplevel $w | 
 |     wm transient $w . | 
 |     message $w.m -text $msg -justify center -aspect 400 | 
 |     pack $w.m -side top -fill x -padx 20 -pady 20 | 
 |     button $w.ok -text OK -command "set confirm_ok 1; destroy $w" | 
 |     pack $w.ok -side left -fill x | 
 |     button $w.cancel -text Cancel -command "destroy $w" | 
 |     pack $w.cancel -side right -fill x | 
 |     bind $w <Visibility> "grab $w; focus $w" | 
 |     tkwait window $w | 
 |     return $confirm_ok | 
 | } | 
 |  | 
 | proc makewindow {} { | 
 |     global canv canv2 canv3 linespc charspc ctext cflist | 
 |     global textfont mainfont uifont tabstop | 
 |     global findtype findtypemenu findloc findstring fstring geometry | 
 |     global entries sha1entry sha1string sha1but | 
 |     global diffcontextstring diffcontext | 
 |     global maincursor textcursor curtextcursor | 
 |     global rowctxmenu fakerowmenu mergemax wrapcomment | 
 |     global highlight_files gdttype | 
 |     global searchstring sstring | 
 |     global bgcolor fgcolor bglist fglist diffcolors selectbgcolor | 
 |     global headctxmenu | 
 |  | 
 |     menu .bar | 
 |     .bar add cascade -label "File" -menu .bar.file | 
 |     .bar configure -font $uifont | 
 |     menu .bar.file | 
 |     .bar.file add command -label "Update" -command updatecommits | 
 |     .bar.file add command -label "Reread references" -command rereadrefs | 
 |     .bar.file add command -label "List references" -command showrefs | 
 |     .bar.file add command -label "Quit" -command doquit | 
 |     .bar.file configure -font $uifont | 
 |     menu .bar.edit | 
 |     .bar add cascade -label "Edit" -menu .bar.edit | 
 |     .bar.edit add command -label "Preferences" -command doprefs | 
 |     .bar.edit configure -font $uifont | 
 |  | 
 |     menu .bar.view -font $uifont | 
 |     .bar add cascade -label "View" -menu .bar.view | 
 |     .bar.view add command -label "New view..." -command {newview 0} | 
 |     .bar.view add command -label "Edit view..." -command editview \ | 
 | 	-state disabled | 
 |     .bar.view add command -label "Delete view" -command delview -state disabled | 
 |     .bar.view add separator | 
 |     .bar.view add radiobutton -label "All files" -command {showview 0} \ | 
 | 	-variable selectedview -value 0 | 
 |  | 
 |     menu .bar.help | 
 |     .bar add cascade -label "Help" -menu .bar.help | 
 |     .bar.help add command -label "About gitk" -command about | 
 |     .bar.help add command -label "Key bindings" -command keys | 
 |     .bar.help configure -font $uifont | 
 |     . configure -menu .bar | 
 |  | 
 |     # the gui has upper and lower half, parts of a paned window. | 
 |     panedwindow .ctop -orient vertical | 
 |  | 
 |     # possibly use assumed geometry | 
 |     if {![info exists geometry(pwsash0)]} { | 
 |         set geometry(topheight) [expr {15 * $linespc}] | 
 |         set geometry(topwidth) [expr {80 * $charspc}] | 
 |         set geometry(botheight) [expr {15 * $linespc}] | 
 |         set geometry(botwidth) [expr {50 * $charspc}] | 
 |         set geometry(pwsash0) "[expr {40 * $charspc}] 2" | 
 |         set geometry(pwsash1) "[expr {60 * $charspc}] 2" | 
 |     } | 
 |  | 
 |     # the upper half will have a paned window, a scroll bar to the right, and some stuff below | 
 |     frame .tf -height $geometry(topheight) -width $geometry(topwidth) | 
 |     frame .tf.histframe | 
 |     panedwindow .tf.histframe.pwclist -orient horizontal -sashpad 0 -handlesize 4 | 
 |  | 
 |     # create three canvases | 
 |     set cscroll .tf.histframe.csb | 
 |     set canv .tf.histframe.pwclist.canv | 
 |     canvas $canv \ | 
 | 	-selectbackground $selectbgcolor \ | 
 | 	-background $bgcolor -bd 0 \ | 
 | 	-yscrollincr $linespc -yscrollcommand "scrollcanv $cscroll" | 
 |     .tf.histframe.pwclist add $canv | 
 |     set canv2 .tf.histframe.pwclist.canv2 | 
 |     canvas $canv2 \ | 
 | 	-selectbackground $selectbgcolor \ | 
 | 	-background $bgcolor -bd 0 -yscrollincr $linespc | 
 |     .tf.histframe.pwclist add $canv2 | 
 |     set canv3 .tf.histframe.pwclist.canv3 | 
 |     canvas $canv3 \ | 
 | 	-selectbackground $selectbgcolor \ | 
 | 	-background $bgcolor -bd 0 -yscrollincr $linespc | 
 |     .tf.histframe.pwclist add $canv3 | 
 |     eval .tf.histframe.pwclist sash place 0 $geometry(pwsash0) | 
 |     eval .tf.histframe.pwclist sash place 1 $geometry(pwsash1) | 
 |  | 
 |     # a scroll bar to rule them | 
 |     scrollbar $cscroll -command {allcanvs yview} -highlightthickness 0 | 
 |     pack $cscroll -side right -fill y | 
 |     bind .tf.histframe.pwclist <Configure> {resizeclistpanes %W %w} | 
 |     lappend bglist $canv $canv2 $canv3 | 
 |     pack .tf.histframe.pwclist -fill both -expand 1 -side left | 
 |  | 
 |     # we have two button bars at bottom of top frame. Bar 1 | 
 |     frame .tf.bar | 
 |     frame .tf.lbar -height 15 | 
 |  | 
 |     set sha1entry .tf.bar.sha1 | 
 |     set entries $sha1entry | 
 |     set sha1but .tf.bar.sha1label | 
 |     button $sha1but -text "SHA1 ID: " -state disabled -relief flat \ | 
 | 	-command gotocommit -width 8 -font $uifont | 
 |     $sha1but conf -disabledforeground [$sha1but cget -foreground] | 
 |     pack .tf.bar.sha1label -side left | 
 |     entry $sha1entry -width 40 -font $textfont -textvariable sha1string | 
 |     trace add variable sha1string write sha1change | 
 |     pack $sha1entry -side left -pady 2 | 
 |  | 
 |     image create bitmap bm-left -data { | 
 | 	#define left_width 16 | 
 | 	#define left_height 16 | 
 | 	static unsigned char left_bits[] = { | 
 | 	0x00, 0x00, 0xc0, 0x01, 0xe0, 0x00, 0x70, 0x00, 0x38, 0x00, 0x1c, 0x00, | 
 | 	0x0e, 0x00, 0xff, 0x7f, 0xff, 0x7f, 0xff, 0x7f, 0x0e, 0x00, 0x1c, 0x00, | 
 | 	0x38, 0x00, 0x70, 0x00, 0xe0, 0x00, 0xc0, 0x01}; | 
 |     } | 
 |     image create bitmap bm-right -data { | 
 | 	#define right_width 16 | 
 | 	#define right_height 16 | 
 | 	static unsigned char right_bits[] = { | 
 | 	0x00, 0x00, 0xc0, 0x01, 0x80, 0x03, 0x00, 0x07, 0x00, 0x0e, 0x00, 0x1c, | 
 | 	0x00, 0x38, 0xff, 0x7f, 0xff, 0x7f, 0xff, 0x7f, 0x00, 0x38, 0x00, 0x1c, | 
 | 	0x00, 0x0e, 0x00, 0x07, 0x80, 0x03, 0xc0, 0x01}; | 
 |     } | 
 |     button .tf.bar.leftbut -image bm-left -command goback \ | 
 | 	-state disabled -width 26 | 
 |     pack .tf.bar.leftbut -side left -fill y | 
 |     button .tf.bar.rightbut -image bm-right -command goforw \ | 
 | 	-state disabled -width 26 | 
 |     pack .tf.bar.rightbut -side left -fill y | 
 |  | 
 |     button .tf.bar.findbut -text "Find" -command dofind -font $uifont | 
 |     pack .tf.bar.findbut -side left | 
 |     set findstring {} | 
 |     set fstring .tf.bar.findstring | 
 |     lappend entries $fstring | 
 |     entry $fstring -width 30 -font $textfont -textvariable findstring | 
 |     trace add variable findstring write find_change | 
 |     pack $fstring -side left -expand 1 -fill x -in .tf.bar | 
 |     set findtype Exact | 
 |     set findtypemenu [tk_optionMenu .tf.bar.findtype \ | 
 | 		      findtype Exact IgnCase Regexp] | 
 |     trace add variable findtype write find_change | 
 |     .tf.bar.findtype configure -font $uifont | 
 |     .tf.bar.findtype.menu configure -font $uifont | 
 |     set findloc "All fields" | 
 |     tk_optionMenu .tf.bar.findloc findloc "All fields" Headline \ | 
 | 	Comments Author Committer | 
 |     trace add variable findloc write find_change | 
 |     .tf.bar.findloc configure -font $uifont | 
 |     .tf.bar.findloc.menu configure -font $uifont | 
 |     pack .tf.bar.findloc -side right | 
 |     pack .tf.bar.findtype -side right | 
 |  | 
 |     # build up the bottom bar of upper window | 
 |     label .tf.lbar.flabel -text "Highlight:  Commits " \ | 
 |     -font $uifont | 
 |     pack .tf.lbar.flabel -side left -fill y | 
 |     set gdttype "touching paths:" | 
 |     set gm [tk_optionMenu .tf.lbar.gdttype gdttype "touching paths:" \ | 
 | 	"adding/removing string:"] | 
 |     trace add variable gdttype write hfiles_change | 
 |     $gm conf -font $uifont | 
 |     .tf.lbar.gdttype conf -font $uifont | 
 |     pack .tf.lbar.gdttype -side left -fill y | 
 |     entry .tf.lbar.fent -width 25 -font $textfont \ | 
 | 	-textvariable highlight_files | 
 |     trace add variable highlight_files write hfiles_change | 
 |     lappend entries .tf.lbar.fent | 
 |     pack .tf.lbar.fent -side left -fill x -expand 1 | 
 |     label .tf.lbar.vlabel -text " OR in view" -font $uifont | 
 |     pack .tf.lbar.vlabel -side left -fill y | 
 |     global viewhlmenu selectedhlview | 
 |     set viewhlmenu [tk_optionMenu .tf.lbar.vhl selectedhlview None] | 
 |     $viewhlmenu entryconf None -command delvhighlight | 
 |     $viewhlmenu conf -font $uifont | 
 |     .tf.lbar.vhl conf -font $uifont | 
 |     pack .tf.lbar.vhl -side left -fill y | 
 |     label .tf.lbar.rlabel -text " OR " -font $uifont | 
 |     pack .tf.lbar.rlabel -side left -fill y | 
 |     global highlight_related | 
 |     set m [tk_optionMenu .tf.lbar.relm highlight_related None \ | 
 | 	"Descendent" "Not descendent" "Ancestor" "Not ancestor"] | 
 |     $m conf -font $uifont | 
 |     .tf.lbar.relm conf -font $uifont | 
 |     trace add variable highlight_related write vrel_change | 
 |     pack .tf.lbar.relm -side left -fill y | 
 |  | 
 |     # Finish putting the upper half of the viewer together | 
 |     pack .tf.lbar -in .tf -side bottom -fill x | 
 |     pack .tf.bar -in .tf -side bottom -fill x | 
 |     pack .tf.histframe -fill both -side top -expand 1 | 
 |     .ctop add .tf | 
 |     .ctop paneconfigure .tf -height $geometry(topheight) | 
 |     .ctop paneconfigure .tf -width $geometry(topwidth) | 
 |  | 
 |     # now build up the bottom | 
 |     panedwindow .pwbottom -orient horizontal | 
 |  | 
 |     # lower left, a text box over search bar, scroll bar to the right | 
 |     # if we know window height, then that will set the lower text height, otherwise | 
 |     # we set lower text height which will drive window height | 
 |     if {[info exists geometry(main)]} { | 
 |         frame .bleft -width $geometry(botwidth) | 
 |     } else { | 
 |         frame .bleft -width $geometry(botwidth) -height $geometry(botheight) | 
 |     } | 
 |     frame .bleft.top | 
 |     frame .bleft.mid | 
 |  | 
 |     button .bleft.top.search -text "Search" -command dosearch \ | 
 | 	-font $uifont | 
 |     pack .bleft.top.search -side left -padx 5 | 
 |     set sstring .bleft.top.sstring | 
 |     entry $sstring -width 20 -font $textfont -textvariable searchstring | 
 |     lappend entries $sstring | 
 |     trace add variable searchstring write incrsearch | 
 |     pack $sstring -side left -expand 1 -fill x | 
 |     radiobutton .bleft.mid.diff -text "Diff" \ | 
 | 	-command changediffdisp -variable diffelide -value {0 0} | 
 |     radiobutton .bleft.mid.old -text "Old version" \ | 
 | 	-command changediffdisp -variable diffelide -value {0 1} | 
 |     radiobutton .bleft.mid.new -text "New version" \ | 
 | 	-command changediffdisp -variable diffelide -value {1 0} | 
 |     label .bleft.mid.labeldiffcontext -text "      Lines of context: " \ | 
 | 	-font $uifont | 
 |     pack .bleft.mid.diff .bleft.mid.old .bleft.mid.new -side left | 
 |     spinbox .bleft.mid.diffcontext -width 5 -font $textfont \ | 
 | 	-from 1 -increment 1 -to 10000000 \ | 
 | 	-validate all -validatecommand "diffcontextvalidate %P" \ | 
 | 	-textvariable diffcontextstring | 
 |     .bleft.mid.diffcontext set $diffcontext | 
 |     trace add variable diffcontextstring write diffcontextchange | 
 |     lappend entries .bleft.mid.diffcontext | 
 |     pack .bleft.mid.labeldiffcontext .bleft.mid.diffcontext -side left | 
 |     set ctext .bleft.ctext | 
 |     text $ctext -background $bgcolor -foreground $fgcolor \ | 
 | 	-tabs "[expr {$tabstop * $charspc}]" \ | 
 | 	-state disabled -font $textfont \ | 
 | 	-yscrollcommand scrolltext -wrap none | 
 |     scrollbar .bleft.sb -command "$ctext yview" | 
 |     pack .bleft.top -side top -fill x | 
 |     pack .bleft.mid -side top -fill x | 
 |     pack .bleft.sb -side right -fill y | 
 |     pack $ctext -side left -fill both -expand 1 | 
 |     lappend bglist $ctext | 
 |     lappend fglist $ctext | 
 |  | 
 |     $ctext tag conf comment -wrap $wrapcomment | 
 |     $ctext tag conf filesep -font [concat $textfont bold] -back "#aaaaaa" | 
 |     $ctext tag conf hunksep -fore [lindex $diffcolors 2] | 
 |     $ctext tag conf d0 -fore [lindex $diffcolors 0] | 
 |     $ctext tag conf d1 -fore [lindex $diffcolors 1] | 
 |     $ctext tag conf m0 -fore red | 
 |     $ctext tag conf m1 -fore blue | 
 |     $ctext tag conf m2 -fore green | 
 |     $ctext tag conf m3 -fore purple | 
 |     $ctext tag conf m4 -fore brown | 
 |     $ctext tag conf m5 -fore "#009090" | 
 |     $ctext tag conf m6 -fore magenta | 
 |     $ctext tag conf m7 -fore "#808000" | 
 |     $ctext tag conf m8 -fore "#009000" | 
 |     $ctext tag conf m9 -fore "#ff0080" | 
 |     $ctext tag conf m10 -fore cyan | 
 |     $ctext tag conf m11 -fore "#b07070" | 
 |     $ctext tag conf m12 -fore "#70b0f0" | 
 |     $ctext tag conf m13 -fore "#70f0b0" | 
 |     $ctext tag conf m14 -fore "#f0b070" | 
 |     $ctext tag conf m15 -fore "#ff70b0" | 
 |     $ctext tag conf mmax -fore darkgrey | 
 |     set mergemax 16 | 
 |     $ctext tag conf mresult -font [concat $textfont bold] | 
 |     $ctext tag conf msep -font [concat $textfont bold] | 
 |     $ctext tag conf found -back yellow | 
 |  | 
 |     .pwbottom add .bleft | 
 |     .pwbottom paneconfigure .bleft -width $geometry(botwidth) | 
 |  | 
 |     # lower right | 
 |     frame .bright | 
 |     frame .bright.mode | 
 |     radiobutton .bright.mode.patch -text "Patch" \ | 
 | 	-command reselectline -variable cmitmode -value "patch" | 
 |     .bright.mode.patch configure -font $uifont | 
 |     radiobutton .bright.mode.tree -text "Tree" \ | 
 | 	-command reselectline -variable cmitmode -value "tree" | 
 |     .bright.mode.tree configure -font $uifont | 
 |     grid .bright.mode.patch .bright.mode.tree -sticky ew | 
 |     pack .bright.mode -side top -fill x | 
 |     set cflist .bright.cfiles | 
 |     set indent [font measure $mainfont "nn"] | 
 |     text $cflist \ | 
 | 	-selectbackground $selectbgcolor \ | 
 | 	-background $bgcolor -foreground $fgcolor \ | 
 | 	-font $mainfont \ | 
 | 	-tabs [list $indent [expr {2 * $indent}]] \ | 
 | 	-yscrollcommand ".bright.sb set" \ | 
 | 	-cursor [. cget -cursor] \ | 
 | 	-spacing1 1 -spacing3 1 | 
 |     lappend bglist $cflist | 
 |     lappend fglist $cflist | 
 |     scrollbar .bright.sb -command "$cflist yview" | 
 |     pack .bright.sb -side right -fill y | 
 |     pack $cflist -side left -fill both -expand 1 | 
 |     $cflist tag configure highlight \ | 
 | 	-background [$cflist cget -selectbackground] | 
 |     $cflist tag configure bold -font [concat $mainfont bold] | 
 |  | 
 |     .pwbottom add .bright | 
 |     .ctop add .pwbottom | 
 |  | 
 |     # restore window position if known | 
 |     if {[info exists geometry(main)]} { | 
 |         wm geometry . "$geometry(main)" | 
 |     } | 
 |  | 
 |     if {[tk windowingsystem] eq {aqua}} { | 
 |         set M1B M1 | 
 |     } else { | 
 |         set M1B Control | 
 |     } | 
 |  | 
 |     bind .pwbottom <Configure> {resizecdetpanes %W %w} | 
 |     pack .ctop -fill both -expand 1 | 
 |     bindall <1> {selcanvline %W %x %y} | 
 |     #bindall <B1-Motion> {selcanvline %W %x %y} | 
 |     if {[tk windowingsystem] == "win32"} { | 
 | 	bind . <MouseWheel> { windows_mousewheel_redirector %W %X %Y %D } | 
 | 	bind $ctext <MouseWheel> { windows_mousewheel_redirector %W %X %Y %D ; break } | 
 |     } else { | 
 | 	bindall <ButtonRelease-4> "allcanvs yview scroll -5 units" | 
 | 	bindall <ButtonRelease-5> "allcanvs yview scroll 5 units" | 
 |     } | 
 |     bindall <2> "canvscan mark %W %x %y" | 
 |     bindall <B2-Motion> "canvscan dragto %W %x %y" | 
 |     bindkey <Home> selfirstline | 
 |     bindkey <End> sellastline | 
 |     bind . <Key-Up> "selnextline -1" | 
 |     bind . <Key-Down> "selnextline 1" | 
 |     bind . <Shift-Key-Up> "next_highlight -1" | 
 |     bind . <Shift-Key-Down> "next_highlight 1" | 
 |     bindkey <Key-Right> "goforw" | 
 |     bindkey <Key-Left> "goback" | 
 |     bind . <Key-Prior> "selnextpage -1" | 
 |     bind . <Key-Next> "selnextpage 1" | 
 |     bind . <$M1B-Home> "allcanvs yview moveto 0.0" | 
 |     bind . <$M1B-End> "allcanvs yview moveto 1.0" | 
 |     bind . <$M1B-Key-Up> "allcanvs yview scroll -1 units" | 
 |     bind . <$M1B-Key-Down> "allcanvs yview scroll 1 units" | 
 |     bind . <$M1B-Key-Prior> "allcanvs yview scroll -1 pages" | 
 |     bind . <$M1B-Key-Next> "allcanvs yview scroll 1 pages" | 
 |     bindkey <Key-Delete> "$ctext yview scroll -1 pages" | 
 |     bindkey <Key-BackSpace> "$ctext yview scroll -1 pages" | 
 |     bindkey <Key-space> "$ctext yview scroll 1 pages" | 
 |     bindkey p "selnextline -1" | 
 |     bindkey n "selnextline 1" | 
 |     bindkey z "goback" | 
 |     bindkey x "goforw" | 
 |     bindkey i "selnextline -1" | 
 |     bindkey k "selnextline 1" | 
 |     bindkey j "goback" | 
 |     bindkey l "goforw" | 
 |     bindkey b "$ctext yview scroll -1 pages" | 
 |     bindkey d "$ctext yview scroll 18 units" | 
 |     bindkey u "$ctext yview scroll -18 units" | 
 |     bindkey / {findnext 1} | 
 |     bindkey <Key-Return> {findnext 0} | 
 |     bindkey ? findprev | 
 |     bindkey f nextfile | 
 |     bindkey <F5> updatecommits | 
 |     bind . <$M1B-q> doquit | 
 |     bind . <$M1B-f> dofind | 
 |     bind . <$M1B-g> {findnext 0} | 
 |     bind . <$M1B-r> dosearchback | 
 |     bind . <$M1B-s> dosearch | 
 |     bind . <$M1B-equal> {incrfont 1} | 
 |     bind . <$M1B-KP_Add> {incrfont 1} | 
 |     bind . <$M1B-minus> {incrfont -1} | 
 |     bind . <$M1B-KP_Subtract> {incrfont -1} | 
 |     wm protocol . WM_DELETE_WINDOW doquit | 
 |     bind . <Button-1> "click %W" | 
 |     bind $fstring <Key-Return> dofind | 
 |     bind $sha1entry <Key-Return> gotocommit | 
 |     bind $sha1entry <<PasteSelection>> clearsha1 | 
 |     bind $cflist <1> {sel_flist %W %x %y; break} | 
 |     bind $cflist <B1-Motion> {sel_flist %W %x %y; break} | 
 |     bind $cflist <ButtonRelease-1> {treeclick %W %x %y} | 
 |     bind $cflist <Button-3> {pop_flist_menu %W %X %Y %x %y} | 
 |  | 
 |     set maincursor [. cget -cursor] | 
 |     set textcursor [$ctext cget -cursor] | 
 |     set curtextcursor $textcursor | 
 |  | 
 |     set rowctxmenu .rowctxmenu | 
 |     menu $rowctxmenu -tearoff 0 | 
 |     $rowctxmenu add command -label "Diff this -> selected" \ | 
 | 	-command {diffvssel 0} | 
 |     $rowctxmenu add command -label "Diff selected -> this" \ | 
 | 	-command {diffvssel 1} | 
 |     $rowctxmenu add command -label "Make patch" -command mkpatch | 
 |     $rowctxmenu add command -label "Create tag" -command mktag | 
 |     $rowctxmenu add command -label "Write commit to file" -command writecommit | 
 |     $rowctxmenu add command -label "Create new branch" -command mkbranch | 
 |     $rowctxmenu add command -label "Cherry-pick this commit" \ | 
 | 	-command cherrypick | 
 |     $rowctxmenu add command -label "Reset HEAD branch to here" \ | 
 | 	-command resethead | 
 |  | 
 |     set fakerowmenu .fakerowmenu | 
 |     menu $fakerowmenu -tearoff 0 | 
 |     $fakerowmenu add command -label "Diff this -> selected" \ | 
 | 	-command {diffvssel 0} | 
 |     $fakerowmenu add command -label "Diff selected -> this" \ | 
 | 	-command {diffvssel 1} | 
 |     $fakerowmenu add command -label "Make patch" -command mkpatch | 
 | #    $fakerowmenu add command -label "Commit" -command {mkcommit 0} | 
 | #    $fakerowmenu add command -label "Commit all" -command {mkcommit 1} | 
 | #    $fakerowmenu add command -label "Revert local changes" -command revertlocal | 
 |  | 
 |     set headctxmenu .headctxmenu | 
 |     menu $headctxmenu -tearoff 0 | 
 |     $headctxmenu add command -label "Check out this branch" \ | 
 | 	-command cobranch | 
 |     $headctxmenu add command -label "Remove this branch" \ | 
 | 	-command rmbranch | 
 |  | 
 |     global flist_menu | 
 |     set flist_menu .flistctxmenu | 
 |     menu $flist_menu -tearoff 0 | 
 |     $flist_menu add command -label "Highlight this too" \ | 
 | 	-command {flist_hl 0} | 
 |     $flist_menu add command -label "Highlight this only" \ | 
 | 	-command {flist_hl 1} | 
 | } | 
 |  | 
 | # Windows sends all mouse wheel events to the current focused window, not | 
 | # the one where the mouse hovers, so bind those events here and redirect | 
 | # to the correct window | 
 | proc windows_mousewheel_redirector {W X Y D} { | 
 |     global canv canv2 canv3 | 
 |     set w [winfo containing -displayof $W $X $Y] | 
 |     if {$w ne ""} { | 
 | 	set u [expr {$D < 0 ? 5 : -5}] | 
 | 	if {$w == $canv || $w == $canv2 || $w == $canv3} { | 
 | 	    allcanvs yview scroll $u units | 
 | 	} else { | 
 | 	    catch { | 
 | 		$w yview scroll $u units | 
 | 	    } | 
 | 	} | 
 |     } | 
 | } | 
 |  | 
 | # mouse-2 makes all windows scan vertically, but only the one | 
 | # the cursor is in scans horizontally | 
 | proc canvscan {op w x y} { | 
 |     global canv canv2 canv3 | 
 |     foreach c [list $canv $canv2 $canv3] { | 
 | 	if {$c == $w} { | 
 | 	    $c scan $op $x $y | 
 | 	} else { | 
 | 	    $c scan $op 0 $y | 
 | 	} | 
 |     } | 
 | } | 
 |  | 
 | proc scrollcanv {cscroll f0 f1} { | 
 |     $cscroll set $f0 $f1 | 
 |     drawfrac $f0 $f1 | 
 |     flushhighlights | 
 | } | 
 |  | 
 | # when we make a key binding for the toplevel, make sure | 
 | # it doesn't get triggered when that key is pressed in the | 
 | # find string entry widget. | 
 | proc bindkey {ev script} { | 
 |     global entries | 
 |     bind . $ev $script | 
 |     set escript [bind Entry $ev] | 
 |     if {$escript == {}} { | 
 | 	set escript [bind Entry <Key>] | 
 |     } | 
 |     foreach e $entries { | 
 | 	bind $e $ev "$escript; break" | 
 |     } | 
 | } | 
 |  | 
 | # set the focus back to the toplevel for any click outside | 
 | # the entry widgets | 
 | proc click {w} { | 
 |     global ctext entries | 
 |     foreach e [concat $entries $ctext] { | 
 | 	if {$w == $e} return | 
 |     } | 
 |     focus . | 
 | } | 
 |  | 
 | proc savestuff {w} { | 
 |     global canv canv2 canv3 ctext cflist mainfont textfont uifont tabstop | 
 |     global stuffsaved findmergefiles maxgraphpct | 
 |     global maxwidth showneartags showlocalchanges | 
 |     global viewname viewfiles viewargs viewperm nextviewnum | 
 |     global cmitmode wrapcomment datetimeformat | 
 |     global colors bgcolor fgcolor diffcolors diffcontext selectbgcolor | 
 |  | 
 |     if {$stuffsaved} return | 
 |     if {![winfo viewable .]} return | 
 |     catch { | 
 | 	set f [open "~/.gitk-new" w] | 
 | 	puts $f [list set mainfont $mainfont] | 
 | 	puts $f [list set textfont $textfont] | 
 | 	puts $f [list set uifont $uifont] | 
 | 	puts $f [list set tabstop $tabstop] | 
 | 	puts $f [list set findmergefiles $findmergefiles] | 
 | 	puts $f [list set maxgraphpct $maxgraphpct] | 
 | 	puts $f [list set maxwidth $maxwidth] | 
 | 	puts $f [list set cmitmode $cmitmode] | 
 | 	puts $f [list set wrapcomment $wrapcomment] | 
 | 	puts $f [list set showneartags $showneartags] | 
 | 	puts $f [list set showlocalchanges $showlocalchanges] | 
 | 	puts $f [list set datetimeformat $datetimeformat] | 
 | 	puts $f [list set bgcolor $bgcolor] | 
 | 	puts $f [list set fgcolor $fgcolor] | 
 | 	puts $f [list set colors $colors] | 
 | 	puts $f [list set diffcolors $diffcolors] | 
 | 	puts $f [list set diffcontext $diffcontext] | 
 | 	puts $f [list set selectbgcolor $selectbgcolor] | 
 |  | 
 | 	puts $f "set geometry(main) [wm geometry .]" | 
 | 	puts $f "set geometry(topwidth) [winfo width .tf]" | 
 | 	puts $f "set geometry(topheight) [winfo height .tf]" | 
 |         puts $f "set geometry(pwsash0) \"[.tf.histframe.pwclist sash coord 0]\"" | 
 |         puts $f "set geometry(pwsash1) \"[.tf.histframe.pwclist sash coord 1]\"" | 
 | 	puts $f "set geometry(botwidth) [winfo width .bleft]" | 
 | 	puts $f "set geometry(botheight) [winfo height .bleft]" | 
 |  | 
 | 	puts -nonewline $f "set permviews {" | 
 | 	for {set v 0} {$v < $nextviewnum} {incr v} { | 
 | 	    if {$viewperm($v)} { | 
 | 		puts $f "{[list $viewname($v) $viewfiles($v) $viewargs($v)]}" | 
 | 	    } | 
 | 	} | 
 | 	puts $f "}" | 
 | 	close $f | 
 | 	file rename -force "~/.gitk-new" "~/.gitk" | 
 |     } | 
 |     set stuffsaved 1 | 
 | } | 
 |  | 
 | proc resizeclistpanes {win w} { | 
 |     global oldwidth | 
 |     if {[info exists oldwidth($win)]} { | 
 | 	set s0 [$win sash coord 0] | 
 | 	set s1 [$win sash coord 1] | 
 | 	if {$w < 60} { | 
 | 	    set sash0 [expr {int($w/2 - 2)}] | 
 | 	    set sash1 [expr {int($w*5/6 - 2)}] | 
 | 	} else { | 
 | 	    set factor [expr {1.0 * $w / $oldwidth($win)}] | 
 | 	    set sash0 [expr {int($factor * [lindex $s0 0])}] | 
 | 	    set sash1 [expr {int($factor * [lindex $s1 0])}] | 
 | 	    if {$sash0 < 30} { | 
 | 		set sash0 30 | 
 | 	    } | 
 | 	    if {$sash1 < $sash0 + 20} { | 
 | 		set sash1 [expr {$sash0 + 20}] | 
 | 	    } | 
 | 	    if {$sash1 > $w - 10} { | 
 | 		set sash1 [expr {$w - 10}] | 
 | 		if {$sash0 > $sash1 - 20} { | 
 | 		    set sash0 [expr {$sash1 - 20}] | 
 | 		} | 
 | 	    } | 
 | 	} | 
 | 	$win sash place 0 $sash0 [lindex $s0 1] | 
 | 	$win sash place 1 $sash1 [lindex $s1 1] | 
 |     } | 
 |     set oldwidth($win) $w | 
 | } | 
 |  | 
 | proc resizecdetpanes {win w} { | 
 |     global oldwidth | 
 |     if {[info exists oldwidth($win)]} { | 
 | 	set s0 [$win sash coord 0] | 
 | 	if {$w < 60} { | 
 | 	    set sash0 [expr {int($w*3/4 - 2)}] | 
 | 	} else { | 
 | 	    set factor [expr {1.0 * $w / $oldwidth($win)}] | 
 | 	    set sash0 [expr {int($factor * [lindex $s0 0])}] | 
 | 	    if {$sash0 < 45} { | 
 | 		set sash0 45 | 
 | 	    } | 
 | 	    if {$sash0 > $w - 15} { | 
 | 		set sash0 [expr {$w - 15}] | 
 | 	    } | 
 | 	} | 
 | 	$win sash place 0 $sash0 [lindex $s0 1] | 
 |     } | 
 |     set oldwidth($win) $w | 
 | } | 
 |  | 
 | proc allcanvs args { | 
 |     global canv canv2 canv3 | 
 |     eval $canv $args | 
 |     eval $canv2 $args | 
 |     eval $canv3 $args | 
 | } | 
 |  | 
 | proc bindall {event action} { | 
 |     global canv canv2 canv3 | 
 |     bind $canv $event $action | 
 |     bind $canv2 $event $action | 
 |     bind $canv3 $event $action | 
 | } | 
 |  | 
 | proc about {} { | 
 |     global uifont | 
 |     set w .about | 
 |     if {[winfo exists $w]} { | 
 | 	raise $w | 
 | 	return | 
 |     } | 
 |     toplevel $w | 
 |     wm title $w "About gitk" | 
 |     message $w.m -text { | 
 | Gitk - a commit viewer for git | 
 |  | 
 | Copyright © 2005-2006 Paul Mackerras | 
 |  | 
 | Use and redistribute under the terms of the GNU General Public License} \ | 
 | 	    -justify center -aspect 400 -border 2 -bg white -relief groove | 
 |     pack $w.m -side top -fill x -padx 2 -pady 2 | 
 |     $w.m configure -font $uifont | 
 |     button $w.ok -text Close -command "destroy $w" -default active | 
 |     pack $w.ok -side bottom | 
 |     $w.ok configure -font $uifont | 
 |     bind $w <Visibility> "focus $w.ok" | 
 |     bind $w <Key-Escape> "destroy $w" | 
 |     bind $w <Key-Return> "destroy $w" | 
 | } | 
 |  | 
 | proc keys {} { | 
 |     global uifont | 
 |     set w .keys | 
 |     if {[winfo exists $w]} { | 
 | 	raise $w | 
 | 	return | 
 |     } | 
 |     if {[tk windowingsystem] eq {aqua}} { | 
 | 	set M1T Cmd | 
 |     } else { | 
 | 	set M1T Ctrl | 
 |     } | 
 |     toplevel $w | 
 |     wm title $w "Gitk key bindings" | 
 |     message $w.m -text " | 
 | Gitk key bindings: | 
 |  | 
 | <$M1T-Q>		Quit | 
 | <Home>		Move to first commit | 
 | <End>		Move to last commit | 
 | <Up>, p, i	Move up one commit | 
 | <Down>, n, k	Move down one commit | 
 | <Left>, z, j	Go back in history list | 
 | <Right>, x, l	Go forward in history list | 
 | <PageUp>	Move up one page in commit list | 
 | <PageDown>	Move down one page in commit list | 
 | <$M1T-Home>	Scroll to top of commit list | 
 | <$M1T-End>	Scroll to bottom of commit list | 
 | <$M1T-Up>	Scroll commit list up one line | 
 | <$M1T-Down>	Scroll commit list down one line | 
 | <$M1T-PageUp>	Scroll commit list up one page | 
 | <$M1T-PageDown>	Scroll commit list down one page | 
 | <Shift-Up>	Move to previous highlighted line | 
 | <Shift-Down>	Move to next highlighted line | 
 | <Delete>, b	Scroll diff view up one page | 
 | <Backspace>	Scroll diff view up one page | 
 | <Space>		Scroll diff view down one page | 
 | u		Scroll diff view up 18 lines | 
 | d		Scroll diff view down 18 lines | 
 | <$M1T-F>		Find | 
 | <$M1T-G>		Move to next find hit | 
 | <Return>	Move to next find hit | 
 | /		Move to next find hit, or redo find | 
 | ?		Move to previous find hit | 
 | f		Scroll diff view to next file | 
 | <$M1T-S>		Search for next hit in diff view | 
 | <$M1T-R>		Search for previous hit in diff view | 
 | <$M1T-KP+>	Increase font size | 
 | <$M1T-plus>	Increase font size | 
 | <$M1T-KP->	Decrease font size | 
 | <$M1T-minus>	Decrease font size | 
 | <F5>		Update | 
 | " \ | 
 | 	    -justify left -bg white -border 2 -relief groove | 
 |     pack $w.m -side top -fill both -padx 2 -pady 2 | 
 |     $w.m configure -font $uifont | 
 |     button $w.ok -text Close -command "destroy $w" -default active | 
 |     pack $w.ok -side bottom | 
 |     $w.ok configure -font $uifont | 
 |     bind $w <Visibility> "focus $w.ok" | 
 |     bind $w <Key-Escape> "destroy $w" | 
 |     bind $w <Key-Return> "destroy $w" | 
 | } | 
 |  | 
 | # Procedures for manipulating the file list window at the | 
 | # bottom right of the overall window. | 
 |  | 
 | proc treeview {w l openlevs} { | 
 |     global treecontents treediropen treeheight treeparent treeindex | 
 |  | 
 |     set ix 0 | 
 |     set treeindex() 0 | 
 |     set lev 0 | 
 |     set prefix {} | 
 |     set prefixend -1 | 
 |     set prefendstack {} | 
 |     set htstack {} | 
 |     set ht 0 | 
 |     set treecontents() {} | 
 |     $w conf -state normal | 
 |     foreach f $l { | 
 | 	while {[string range $f 0 $prefixend] ne $prefix} { | 
 | 	    if {$lev <= $openlevs} { | 
 | 		$w mark set e:$treeindex($prefix) "end -1c" | 
 | 		$w mark gravity e:$treeindex($prefix) left | 
 | 	    } | 
 | 	    set treeheight($prefix) $ht | 
 | 	    incr ht [lindex $htstack end] | 
 | 	    set htstack [lreplace $htstack end end] | 
 | 	    set prefixend [lindex $prefendstack end] | 
 | 	    set prefendstack [lreplace $prefendstack end end] | 
 | 	    set prefix [string range $prefix 0 $prefixend] | 
 | 	    incr lev -1 | 
 | 	} | 
 | 	set tail [string range $f [expr {$prefixend+1}] end] | 
 | 	while {[set slash [string first "/" $tail]] >= 0} { | 
 | 	    lappend htstack $ht | 
 | 	    set ht 0 | 
 | 	    lappend prefendstack $prefixend | 
 | 	    incr prefixend [expr {$slash + 1}] | 
 | 	    set d [string range $tail 0 $slash] | 
 | 	    lappend treecontents($prefix) $d | 
 | 	    set oldprefix $prefix | 
 | 	    append prefix $d | 
 | 	    set treecontents($prefix) {} | 
 | 	    set treeindex($prefix) [incr ix] | 
 | 	    set treeparent($prefix) $oldprefix | 
 | 	    set tail [string range $tail [expr {$slash+1}] end] | 
 | 	    if {$lev <= $openlevs} { | 
 | 		set ht 1 | 
 | 		set treediropen($prefix) [expr {$lev < $openlevs}] | 
 | 		set bm [expr {$lev == $openlevs? "tri-rt": "tri-dn"}] | 
 | 		$w mark set d:$ix "end -1c" | 
 | 		$w mark gravity d:$ix left | 
 | 		set str "\n" | 
 | 		for {set i 0} {$i < $lev} {incr i} {append str "\t"} | 
 | 		$w insert end $str | 
 | 		$w image create end -align center -image $bm -padx 1 \ | 
 | 		    -name a:$ix | 
 | 		$w insert end $d [highlight_tag $prefix] | 
 | 		$w mark set s:$ix "end -1c" | 
 | 		$w mark gravity s:$ix left | 
 | 	    } | 
 | 	    incr lev | 
 | 	} | 
 | 	if {$tail ne {}} { | 
 | 	    if {$lev <= $openlevs} { | 
 | 		incr ht | 
 | 		set str "\n" | 
 | 		for {set i 0} {$i < $lev} {incr i} {append str "\t"} | 
 | 		$w insert end $str | 
 | 		$w insert end $tail [highlight_tag $f] | 
 | 	    } | 
 | 	    lappend treecontents($prefix) $tail | 
 | 	} | 
 |     } | 
 |     while {$htstack ne {}} { | 
 | 	set treeheight($prefix) $ht | 
 | 	incr ht [lindex $htstack end] | 
 | 	set htstack [lreplace $htstack end end] | 
 | 	set prefixend [lindex $prefendstack end] | 
 | 	set prefendstack [lreplace $prefendstack end end] | 
 | 	set prefix [string range $prefix 0 $prefixend] | 
 |     } | 
 |     $w conf -state disabled | 
 | } | 
 |  | 
 | proc linetoelt {l} { | 
 |     global treeheight treecontents | 
 |  | 
 |     set y 2 | 
 |     set prefix {} | 
 |     while {1} { | 
 | 	foreach e $treecontents($prefix) { | 
 | 	    if {$y == $l} { | 
 | 		return "$prefix$e" | 
 | 	    } | 
 | 	    set n 1 | 
 | 	    if {[string index $e end] eq "/"} { | 
 | 		set n $treeheight($prefix$e) | 
 | 		if {$y + $n > $l} { | 
 | 		    append prefix $e | 
 | 		    incr y | 
 | 		    break | 
 | 		} | 
 | 	    } | 
 | 	    incr y $n | 
 | 	} | 
 |     } | 
 | } | 
 |  | 
 | proc highlight_tree {y prefix} { | 
 |     global treeheight treecontents cflist | 
 |  | 
 |     foreach e $treecontents($prefix) { | 
 | 	set path $prefix$e | 
 | 	if {[highlight_tag $path] ne {}} { | 
 | 	    $cflist tag add bold $y.0 "$y.0 lineend" | 
 | 	} | 
 | 	incr y | 
 | 	if {[string index $e end] eq "/" && $treeheight($path) > 1} { | 
 | 	    set y [highlight_tree $y $path] | 
 | 	} | 
 |     } | 
 |     return $y | 
 | } | 
 |  | 
 | proc treeclosedir {w dir} { | 
 |     global treediropen treeheight treeparent treeindex | 
 |  | 
 |     set ix $treeindex($dir) | 
 |     $w conf -state normal | 
 |     $w delete s:$ix e:$ix | 
 |     set treediropen($dir) 0 | 
 |     $w image configure a:$ix -image tri-rt | 
 |     $w conf -state disabled | 
 |     set n [expr {1 - $treeheight($dir)}] | 
 |     while {$dir ne {}} { | 
 | 	incr treeheight($dir) $n | 
 | 	set dir $treeparent($dir) | 
 |     } | 
 | } | 
 |  | 
 | proc treeopendir {w dir} { | 
 |     global treediropen treeheight treeparent treecontents treeindex | 
 |  | 
 |     set ix $treeindex($dir) | 
 |     $w conf -state normal | 
 |     $w image configure a:$ix -image tri-dn | 
 |     $w mark set e:$ix s:$ix | 
 |     $w mark gravity e:$ix right | 
 |     set lev 0 | 
 |     set str "\n" | 
 |     set n [llength $treecontents($dir)] | 
 |     for {set x $dir} {$x ne {}} {set x $treeparent($x)} { | 
 | 	incr lev | 
 | 	append str "\t" | 
 | 	incr treeheight($x) $n | 
 |     } | 
 |     foreach e $treecontents($dir) { | 
 | 	set de $dir$e | 
 | 	if {[string index $e end] eq "/"} { | 
 | 	    set iy $treeindex($de) | 
 | 	    $w mark set d:$iy e:$ix | 
 | 	    $w mark gravity d:$iy left | 
 | 	    $w insert e:$ix $str | 
 | 	    set treediropen($de) 0 | 
 | 	    $w image create e:$ix -align center -image tri-rt -padx 1 \ | 
 | 		-name a:$iy | 
 | 	    $w insert e:$ix $e [highlight_tag $de] | 
 | 	    $w mark set s:$iy e:$ix | 
 | 	    $w mark gravity s:$iy left | 
 | 	    set treeheight($de) 1 | 
 | 	} else { | 
 | 	    $w insert e:$ix $str | 
 | 	    $w insert e:$ix $e [highlight_tag $de] | 
 | 	} | 
 |     } | 
 |     $w mark gravity e:$ix left | 
 |     $w conf -state disabled | 
 |     set treediropen($dir) 1 | 
 |     set top [lindex [split [$w index @0,0] .] 0] | 
 |     set ht [$w cget -height] | 
 |     set l [lindex [split [$w index s:$ix] .] 0] | 
 |     if {$l < $top} { | 
 | 	$w yview $l.0 | 
 |     } elseif {$l + $n + 1 > $top + $ht} { | 
 | 	set top [expr {$l + $n + 2 - $ht}] | 
 | 	if {$l < $top} { | 
 | 	    set top $l | 
 | 	} | 
 | 	$w yview $top.0 | 
 |     } | 
 | } | 
 |  | 
 | proc treeclick {w x y} { | 
 |     global treediropen cmitmode ctext cflist cflist_top | 
 |  | 
 |     if {$cmitmode ne "tree"} return | 
 |     if {![info exists cflist_top]} return | 
 |     set l [lindex [split [$w index "@$x,$y"] "."] 0] | 
 |     $cflist tag remove highlight $cflist_top.0 "$cflist_top.0 lineend" | 
 |     $cflist tag add highlight $l.0 "$l.0 lineend" | 
 |     set cflist_top $l | 
 |     if {$l == 1} { | 
 | 	$ctext yview 1.0 | 
 | 	return | 
 |     } | 
 |     set e [linetoelt $l] | 
 |     if {[string index $e end] ne "/"} { | 
 | 	showfile $e | 
 |     } elseif {$treediropen($e)} { | 
 | 	treeclosedir $w $e | 
 |     } else { | 
 | 	treeopendir $w $e | 
 |     } | 
 | } | 
 |  | 
 | proc setfilelist {id} { | 
 |     global treefilelist cflist | 
 |  | 
 |     treeview $cflist $treefilelist($id) 0 | 
 | } | 
 |  | 
 | image create bitmap tri-rt -background black -foreground blue -data { | 
 |     #define tri-rt_width 13 | 
 |     #define tri-rt_height 13 | 
 |     static unsigned char tri-rt_bits[] = { | 
 |        0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x30, 0x00, 0x70, 0x00, 0xf0, 0x00, | 
 |        0xf0, 0x01, 0xf0, 0x00, 0x70, 0x00, 0x30, 0x00, 0x10, 0x00, 0x00, 0x00, | 
 |        0x00, 0x00}; | 
 | } -maskdata { | 
 |     #define tri-rt-mask_width 13 | 
 |     #define tri-rt-mask_height 13 | 
 |     static unsigned char tri-rt-mask_bits[] = { | 
 |        0x08, 0x00, 0x18, 0x00, 0x38, 0x00, 0x78, 0x00, 0xf8, 0x00, 0xf8, 0x01, | 
 |        0xf8, 0x03, 0xf8, 0x01, 0xf8, 0x00, 0x78, 0x00, 0x38, 0x00, 0x18, 0x00, | 
 |        0x08, 0x00}; | 
 | } | 
 | image create bitmap tri-dn -background black -foreground blue -data { | 
 |     #define tri-dn_width 13 | 
 |     #define tri-dn_height 13 | 
 |     static unsigned char tri-dn_bits[] = { | 
 |        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0x07, 0xf8, 0x03, | 
 |        0xf0, 0x01, 0xe0, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | 
 |        0x00, 0x00}; | 
 | } -maskdata { | 
 |     #define tri-dn-mask_width 13 | 
 |     #define tri-dn-mask_height 13 | 
 |     static unsigned char tri-dn-mask_bits[] = { | 
 |        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x1f, 0xfe, 0x0f, 0xfc, 0x07, | 
 |        0xf8, 0x03, 0xf0, 0x01, 0xe0, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, | 
 |        0x00, 0x00}; | 
 | } | 
 |  | 
 | image create bitmap reficon-T -background black -foreground yellow -data { | 
 |     #define tagicon_width 13 | 
 |     #define tagicon_height 9 | 
 |     static unsigned char tagicon_bits[] = { | 
 |        0x00, 0x00, 0x00, 0x00, 0xf0, 0x07, 0xf8, 0x07, | 
 |        0xfc, 0x07, 0xf8, 0x07, 0xf0, 0x07, 0x00, 0x00, 0x00, 0x00}; | 
 | } -maskdata { | 
 |     #define tagicon-mask_width 13 | 
 |     #define tagicon-mask_height 9 | 
 |     static unsigned char tagicon-mask_bits[] = { | 
 |        0x00, 0x00, 0xf0, 0x0f, 0xf8, 0x0f, 0xfc, 0x0f, | 
 |        0xfe, 0x0f, 0xfc, 0x0f, 0xf8, 0x0f, 0xf0, 0x0f, 0x00, 0x00}; | 
 | } | 
 | set rectdata { | 
 |     #define headicon_width 13 | 
 |     #define headicon_height 9 | 
 |     static unsigned char headicon_bits[] = { | 
 |        0x00, 0x00, 0x00, 0x00, 0xf8, 0x07, 0xf8, 0x07, | 
 |        0xf8, 0x07, 0xf8, 0x07, 0xf8, 0x07, 0x00, 0x00, 0x00, 0x00}; | 
 | } | 
 | set rectmask { | 
 |     #define headicon-mask_width 13 | 
 |     #define headicon-mask_height 9 | 
 |     static unsigned char headicon-mask_bits[] = { | 
 |        0x00, 0x00, 0xfc, 0x0f, 0xfc, 0x0f, 0xfc, 0x0f, | 
 |        0xfc, 0x0f, 0xfc, 0x0f, 0xfc, 0x0f, 0xfc, 0x0f, 0x00, 0x00}; | 
 | } | 
 | image create bitmap reficon-H -background black -foreground green \ | 
 |     -data $rectdata -maskdata $rectmask | 
 | image create bitmap reficon-o -background black -foreground "#ddddff" \ | 
 |     -data $rectdata -maskdata $rectmask | 
 |  | 
 | proc init_flist {first} { | 
 |     global cflist cflist_top selectedline difffilestart | 
 |  | 
 |     $cflist conf -state normal | 
 |     $cflist delete 0.0 end | 
 |     if {$first ne {}} { | 
 | 	$cflist insert end $first | 
 | 	set cflist_top 1 | 
 | 	$cflist tag add highlight 1.0 "1.0 lineend" | 
 |     } else { | 
 | 	catch {unset cflist_top} | 
 |     } | 
 |     $cflist conf -state disabled | 
 |     set difffilestart {} | 
 | } | 
 |  | 
 | proc highlight_tag {f} { | 
 |     global highlight_paths | 
 |  | 
 |     foreach p $highlight_paths { | 
 | 	if {[string match $p $f]} { | 
 | 	    return "bold" | 
 | 	} | 
 |     } | 
 |     return {} | 
 | } | 
 |  | 
 | proc highlight_filelist {} { | 
 |     global cmitmode cflist | 
 |  | 
 |     $cflist conf -state normal | 
 |     if {$cmitmode ne "tree"} { | 
 | 	set end [lindex [split [$cflist index end] .] 0] | 
 | 	for {set l 2} {$l < $end} {incr l} { | 
 | 	    set line [$cflist get $l.0 "$l.0 lineend"] | 
 | 	    if {[highlight_tag $line] ne {}} { | 
 | 		$cflist tag add bold $l.0 "$l.0 lineend" | 
 | 	    } | 
 | 	} | 
 |     } else { | 
 | 	highlight_tree 2 {} | 
 |     } | 
 |     $cflist conf -state disabled | 
 | } | 
 |  | 
 | proc unhighlight_filelist {} { | 
 |     global cflist | 
 |  | 
 |     $cflist conf -state normal | 
 |     $cflist tag remove bold 1.0 end | 
 |     $cflist conf -state disabled | 
 | } | 
 |  | 
 | proc add_flist {fl} { | 
 |     global cflist | 
 |  | 
 |     $cflist conf -state normal | 
 |     foreach f $fl { | 
 | 	$cflist insert end "\n" | 
 | 	$cflist insert end $f [highlight_tag $f] | 
 |     } | 
 |     $cflist conf -state disabled | 
 | } | 
 |  | 
 | proc sel_flist {w x y} { | 
 |     global ctext difffilestart cflist cflist_top cmitmode | 
 |  | 
 |     if {$cmitmode eq "tree"} return | 
 |     if {![info exists cflist_top]} return | 
 |     set l [lindex [split [$w index "@$x,$y"] "."] 0] | 
 |     $cflist tag remove highlight $cflist_top.0 "$cflist_top.0 lineend" | 
 |     $cflist tag add highlight $l.0 "$l.0 lineend" | 
 |     set cflist_top $l | 
 |     if {$l == 1} { | 
 | 	$ctext yview 1.0 | 
 |     } else { | 
 | 	catch {$ctext yview [lindex $difffilestart [expr {$l - 2}]]} | 
 |     } | 
 | } | 
 |  | 
 | proc pop_flist_menu {w X Y x y} { | 
 |     global ctext cflist cmitmode flist_menu flist_menu_file | 
 |     global treediffs diffids | 
 |  | 
 |     set l [lindex [split [$w index "@$x,$y"] "."] 0] | 
 |     if {$l <= 1} return | 
 |     if {$cmitmode eq "tree"} { | 
 | 	set e [linetoelt $l] | 
 | 	if {[string index $e end] eq "/"} return | 
 |     } else { | 
 | 	set e [lindex $treediffs($diffids) [expr {$l-2}]] | 
 |     } | 
 |     set flist_menu_file $e | 
 |     tk_popup $flist_menu $X $Y | 
 | } | 
 |  | 
 | proc flist_hl {only} { | 
 |     global flist_menu_file highlight_files | 
 |  | 
 |     set x [shellquote $flist_menu_file] | 
 |     if {$only || $highlight_files eq {}} { | 
 | 	set highlight_files $x | 
 |     } else { | 
 | 	append highlight_files " " $x | 
 |     } | 
 | } | 
 |  | 
 | # Functions for adding and removing shell-type quoting | 
 |  | 
 | proc shellquote {str} { | 
 |     if {![string match "*\['\"\\ \t]*" $str]} { | 
 | 	return $str | 
 |     } | 
 |     if {![string match "*\['\"\\]*" $str]} { | 
 | 	return "\"$str\"" | 
 |     } | 
 |     if {![string match "*'*" $str]} { | 
 | 	return "'$str'" | 
 |     } | 
 |     return "\"[string map {\" \\\" \\ \\\\} $str]\"" | 
 | } | 
 |  | 
 | proc shellarglist {l} { | 
 |     set str {} | 
 |     foreach a $l { | 
 | 	if {$str ne {}} { | 
 | 	    append str " " | 
 | 	} | 
 | 	append str [shellquote $a] | 
 |     } | 
 |     return $str | 
 | } | 
 |  | 
 | proc shelldequote {str} { | 
 |     set ret {} | 
 |     set used -1 | 
 |     while {1} { | 
 | 	incr used | 
 | 	if {![regexp -start $used -indices "\['\"\\\\ \t]" $str first]} { | 
 | 	    append ret [string range $str $used end] | 
 | 	    set used [string length $str] | 
 | 	    break | 
 | 	} | 
 | 	set first [lindex $first 0] | 
 | 	set ch [string index $str $first] | 
 | 	if {$first > $used} { | 
 | 	    append ret [string range $str $used [expr {$first - 1}]] | 
 | 	    set used $first | 
 | 	} | 
 | 	if {$ch eq " " || $ch eq "\t"} break | 
 | 	incr used | 
 | 	if {$ch eq "'"} { | 
 | 	    set first [string first "'" $str $used] | 
 | 	    if {$first < 0} { | 
 | 		error "unmatched single-quote" | 
 | 	    } | 
 | 	    append ret [string range $str $used [expr {$first - 1}]] | 
 | 	    set used $first | 
 | 	    continue | 
 | 	} | 
 | 	if {$ch eq "\\"} { | 
 | 	    if {$used >= [string length $str]} { | 
 | 		error "trailing backslash" | 
 | 	    } | 
 | 	    append ret [string index $str $used] | 
 | 	    continue | 
 | 	} | 
 | 	# here ch == "\"" | 
 | 	while {1} { | 
 | 	    if {![regexp -start $used -indices "\[\"\\\\]" $str first]} { | 
 | 		error "unmatched double-quote" | 
 | 	    } | 
 | 	    set first [lindex $first 0] | 
 | 	    set ch [string index $str $first] | 
 | 	    if {$first > $used} { | 
 | 		append ret [string range $str $used [expr {$first - 1}]] | 
 | 		set used $first | 
 | 	    } | 
 | 	    if {$ch eq "\""} break | 
 | 	    incr used | 
 | 	    append ret [string index $str $used] | 
 | 	    incr used | 
 | 	} | 
 |     } | 
 |     return [list $used $ret] | 
 | } | 
 |  | 
 | proc shellsplit {str} { | 
 |     set l {} | 
 |     while {1} { | 
 | 	set str [string trimleft $str] | 
 | 	if {$str eq {}} break | 
 | 	set dq [shelldequote $str] | 
 | 	set n [lindex $dq 0] | 
 | 	set word [lindex $dq 1] | 
 | 	set str [string range $str $n end] | 
 | 	lappend l $word | 
 |     } | 
 |     return $l | 
 | } | 
 |  | 
 | # Code to implement multiple views | 
 |  | 
 | proc newview {ishighlight} { | 
 |     global nextviewnum newviewname newviewperm uifont newishighlight | 
 |     global newviewargs revtreeargs | 
 |  | 
 |     set newishighlight $ishighlight | 
 |     set top .gitkview | 
 |     if {[winfo exists $top]} { | 
 | 	raise $top | 
 | 	return | 
 |     } | 
 |     set newviewname($nextviewnum) "View $nextviewnum" | 
 |     set newviewperm($nextviewnum) 0 | 
 |     set newviewargs($nextviewnum) [shellarglist $revtreeargs] | 
 |     vieweditor $top $nextviewnum "Gitk view definition" | 
 | } | 
 |  | 
 | proc editview {} { | 
 |     global curview | 
 |     global viewname viewperm newviewname newviewperm | 
 |     global viewargs newviewargs | 
 |  | 
 |     set top .gitkvedit-$curview | 
 |     if {[winfo exists $top]} { | 
 | 	raise $top | 
 | 	return | 
 |     } | 
 |     set newviewname($curview) $viewname($curview) | 
 |     set newviewperm($curview) $viewperm($curview) | 
 |     set newviewargs($curview) [shellarglist $viewargs($curview)] | 
 |     vieweditor $top $curview "Gitk: edit view $viewname($curview)" | 
 | } | 
 |  | 
 | proc vieweditor {top n title} { | 
 |     global newviewname newviewperm viewfiles | 
 |     global uifont | 
 |  | 
 |     toplevel $top | 
 |     wm title $top $title | 
 |     label $top.nl -text "Name" -font $uifont | 
 |     entry $top.name -width 20 -textvariable newviewname($n) -font $uifont | 
 |     grid $top.nl $top.name -sticky w -pady 5 | 
 |     checkbutton $top.perm -text "Remember this view" -variable newviewperm($n) \ | 
 | 	-font $uifont | 
 |     grid $top.perm - -pady 5 -sticky w | 
 |     message $top.al -aspect 1000 -font $uifont \ | 
 | 	-text "Commits to include (arguments to git rev-list):" | 
 |     grid $top.al - -sticky w -pady 5 | 
 |     entry $top.args -width 50 -textvariable newviewargs($n) \ | 
 | 	-background white -font $uifont | 
 |     grid $top.args - -sticky ew -padx 5 | 
 |     message $top.l -aspect 1000 -font $uifont \ | 
 | 	-text "Enter files and directories to include, one per line:" | 
 |     grid $top.l - -sticky w | 
 |     text $top.t -width 40 -height 10 -background white -font $uifont | 
 |     if {[info exists viewfiles($n)]} { | 
 | 	foreach f $viewfiles($n) { | 
 | 	    $top.t insert end $f | 
 | 	    $top.t insert end "\n" | 
 | 	} | 
 | 	$top.t delete {end - 1c} end | 
 | 	$top.t mark set insert 0.0 | 
 |     } | 
 |     grid $top.t - -sticky ew -padx 5 | 
 |     frame $top.buts | 
 |     button $top.buts.ok -text "OK" -command [list newviewok $top $n] \ | 
 | 	-font $uifont | 
 |     button $top.buts.can -text "Cancel" -command [list destroy $top] \ | 
 | 	-font $uifont | 
 |     grid $top.buts.ok $top.buts.can | 
 |     grid columnconfigure $top.buts 0 -weight 1 -uniform a | 
 |     grid columnconfigure $top.buts 1 -weight 1 -uniform a | 
 |     grid $top.buts - -pady 10 -sticky ew | 
 |     focus $top.t | 
 | } | 
 |  | 
 | proc doviewmenu {m first cmd op argv} { | 
 |     set nmenu [$m index end] | 
 |     for {set i $first} {$i <= $nmenu} {incr i} { | 
 | 	if {[$m entrycget $i -command] eq $cmd} { | 
 | 	    eval $m $op $i $argv | 
 | 	    break | 
 | 	} | 
 |     } | 
 | } | 
 |  | 
 | proc allviewmenus {n op args} { | 
 |     global viewhlmenu | 
 |  | 
 |     doviewmenu .bar.view 5 [list showview $n] $op $args | 
 |     doviewmenu $viewhlmenu 1 [list addvhighlight $n] $op $args | 
 | } | 
 |  | 
 | proc newviewok {top n} { | 
 |     global nextviewnum newviewperm newviewname newishighlight | 
 |     global viewname viewfiles viewperm selectedview curview | 
 |     global viewargs newviewargs viewhlmenu | 
 |  | 
 |     if {[catch { | 
 | 	set newargs [shellsplit $newviewargs($n)] | 
 |     } err]} { | 
 | 	error_popup "Error in commit selection arguments: $err" | 
 | 	wm raise $top | 
 | 	focus $top | 
 | 	return | 
 |     } | 
 |     set files {} | 
 |     foreach f [split [$top.t get 0.0 end] "\n"] { | 
 | 	set ft [string trim $f] | 
 | 	if {$ft ne {}} { | 
 | 	    lappend files $ft | 
 | 	} | 
 |     } | 
 |     if {![info exists viewfiles($n)]} { | 
 | 	# creating a new view | 
 | 	incr nextviewnum | 
 | 	set viewname($n) $newviewname($n) | 
 | 	set viewperm($n) $newviewperm($n) | 
 | 	set viewfiles($n) $files | 
 | 	set viewargs($n) $newargs | 
 | 	addviewmenu $n | 
 | 	if {!$newishighlight} { | 
 | 	    run showview $n | 
 | 	} else { | 
 | 	    run addvhighlight $n | 
 | 	} | 
 |     } else { | 
 | 	# editing an existing view | 
 | 	set viewperm($n) $newviewperm($n) | 
 | 	if {$newviewname($n) ne $viewname($n)} { | 
 | 	    set viewname($n) $newviewname($n) | 
 | 	    doviewmenu .bar.view 5 [list showview $n] \ | 
 | 		entryconf [list -label $viewname($n)] | 
 | 	    doviewmenu $viewhlmenu 1 [list addvhighlight $n] \ | 
 | 		entryconf [list -label $viewname($n) -value $viewname($n)] | 
 | 	} | 
 | 	if {$files ne $viewfiles($n) || $newargs ne $viewargs($n)} { | 
 | 	    set viewfiles($n) $files | 
 | 	    set viewargs($n) $newargs | 
 | 	    if {$curview == $n} { | 
 | 		run updatecommits | 
 | 	    } | 
 | 	} | 
 |     } | 
 |     catch {destroy $top} | 
 | } | 
 |  | 
 | proc delview {} { | 
 |     global curview viewdata viewperm hlview selectedhlview | 
 |  | 
 |     if {$curview == 0} return | 
 |     if {[info exists hlview] && $hlview == $curview} { | 
 | 	set selectedhlview None | 
 | 	unset hlview | 
 |     } | 
 |     allviewmenus $curview delete | 
 |     set viewdata($curview) {} | 
 |     set viewperm($curview) 0 | 
 |     showview 0 | 
 | } | 
 |  | 
 | proc addviewmenu {n} { | 
 |     global viewname viewhlmenu | 
 |  | 
 |     .bar.view add radiobutton -label $viewname($n) \ | 
 | 	-command [list showview $n] -variable selectedview -value $n | 
 |     $viewhlmenu add radiobutton -label $viewname($n) \ | 
 | 	-command [list addvhighlight $n] -variable selectedhlview | 
 | } | 
 |  | 
 | proc flatten {var} { | 
 |     global $var | 
 |  | 
 |     set ret {} | 
 |     foreach i [array names $var] { | 
 | 	lappend ret $i [set $var\($i\)] | 
 |     } | 
 |     return $ret | 
 | } | 
 |  | 
 | proc unflatten {var l} { | 
 |     global $var | 
 |  | 
 |     catch {unset $var} | 
 |     foreach {i v} $l { | 
 | 	set $var\($i\) $v | 
 |     } | 
 | } | 
 |  | 
 | proc showview {n} { | 
 |     global curview viewdata viewfiles | 
 |     global displayorder parentlist rowidlist rowoffsets | 
 |     global colormap rowtextx commitrow nextcolor canvxmax | 
 |     global numcommits rowrangelist commitlisted idrowranges rowchk | 
 |     global selectedline currentid canv canvy0 | 
 |     global treediffs | 
 |     global pending_select phase | 
 |     global commitidx rowlaidout rowoptim | 
 |     global commfd | 
 |     global selectedview selectfirst | 
 |     global vparentlist vdisporder vcmitlisted | 
 |     global hlview selectedhlview | 
 |  | 
 |     if {$n == $curview} return | 
 |     set selid {} | 
 |     if {[info exists selectedline]} { | 
 | 	set selid $currentid | 
 | 	set y [yc $selectedline] | 
 | 	set ymax [lindex [$canv cget -scrollregion] 3] | 
 | 	set span [$canv yview] | 
 | 	set ytop [expr {[lindex $span 0] * $ymax}] | 
 | 	set ybot [expr {[lindex $span 1] * $ymax}] | 
 | 	if {$ytop < $y && $y < $ybot} { | 
 | 	    set yscreen [expr {$y - $ytop}] | 
 | 	} else { | 
 | 	    set yscreen [expr {($ybot - $ytop) / 2}] | 
 | 	} | 
 |     } elseif {[info exists pending_select]} { | 
 | 	set selid $pending_select | 
 | 	unset pending_select | 
 |     } | 
 |     unselectline | 
 |     normalline | 
 |     if {$curview >= 0} { | 
 | 	set vparentlist($curview) $parentlist | 
 | 	set vdisporder($curview) $displayorder | 
 | 	set vcmitlisted($curview) $commitlisted | 
 | 	if {$phase ne {}} { | 
 | 	    set viewdata($curview) \ | 
 | 		[list $phase $rowidlist $rowoffsets $rowrangelist \ | 
 | 		     [flatten idrowranges] [flatten idinlist] \ | 
 | 		     $rowlaidout $rowoptim $numcommits] | 
 | 	} elseif {![info exists viewdata($curview)] | 
 | 		  || [lindex $viewdata($curview) 0] ne {}} { | 
 | 	    set viewdata($curview) \ | 
 | 		[list {} $rowidlist $rowoffsets $rowrangelist] | 
 | 	} | 
 |     } | 
 |     catch {unset treediffs} | 
 |     clear_display | 
 |     if {[info exists hlview] && $hlview == $n} { | 
 | 	unset hlview | 
 | 	set selectedhlview None | 
 |     } | 
 |  | 
 |     set curview $n | 
 |     set selectedview $n | 
 |     .bar.view entryconf Edit* -state [expr {$n == 0? "disabled": "normal"}] | 
 |     .bar.view entryconf Delete* -state [expr {$n == 0? "disabled": "normal"}] | 
 |  | 
 |     if {![info exists viewdata($n)]} { | 
 | 	if {$selid ne {}} { | 
 | 	    set pending_select $selid | 
 | 	} | 
 | 	getcommits | 
 | 	return | 
 |     } | 
 |  | 
 |     set v $viewdata($n) | 
 |     set phase [lindex $v 0] | 
 |     set displayorder $vdisporder($n) | 
 |     set parentlist $vparentlist($n) | 
 |     set commitlisted $vcmitlisted($n) | 
 |     set rowidlist [lindex $v 1] | 
 |     set rowoffsets [lindex $v 2] | 
 |     set rowrangelist [lindex $v 3] | 
 |     if {$phase eq {}} { | 
 | 	set numcommits [llength $displayorder] | 
 | 	catch {unset idrowranges} | 
 |     } else { | 
 | 	unflatten idrowranges [lindex $v 4] | 
 | 	unflatten idinlist [lindex $v 5] | 
 | 	set rowlaidout [lindex $v 6] | 
 | 	set rowoptim [lindex $v 7] | 
 | 	set numcommits [lindex $v 8] | 
 | 	catch {unset rowchk} | 
 |     } | 
 |  | 
 |     catch {unset colormap} | 
 |     catch {unset rowtextx} | 
 |     set nextcolor 0 | 
 |     set canvxmax [$canv cget -width] | 
 |     set curview $n | 
 |     set row 0 | 
 |     setcanvscroll | 
 |     set yf 0 | 
 |     set row {} | 
 |     set selectfirst 0 | 
 |     if {$selid ne {} && [info exists commitrow($n,$selid)]} { | 
 | 	set row $commitrow($n,$selid) | 
 | 	# try to get the selected row in the same position on the screen | 
 | 	set ymax [lindex [$canv cget -scrollregion] 3] | 
 | 	set ytop [expr {[yc $row] - $yscreen}] | 
 | 	if {$ytop < 0} { | 
 | 	    set ytop 0 | 
 | 	} | 
 | 	set yf [expr {$ytop * 1.0 / $ymax}] | 
 |     } | 
 |     allcanvs yview moveto $yf | 
 |     drawvisible | 
 |     if {$row ne {}} { | 
 | 	selectline $row 0 | 
 |     } elseif {$selid ne {}} { | 
 | 	set pending_select $selid | 
 |     } else { | 
 | 	set row [first_real_row] | 
 | 	if {$row < $numcommits} { | 
 | 	    selectline $row 0 | 
 | 	} else { | 
 | 	    set selectfirst 1 | 
 | 	} | 
 |     } | 
 |     if {$phase ne {}} { | 
 | 	if {$phase eq "getcommits"} { | 
 | 	    show_status "Reading commits..." | 
 | 	} | 
 | 	run chewcommits $n | 
 |     } elseif {$numcommits == 0} { | 
 | 	show_status "No commits selected" | 
 |     } | 
 |     run refill_reflist | 
 | } | 
 |  | 
 | # Stuff relating to the highlighting facility | 
 |  | 
 | proc ishighlighted {row} { | 
 |     global vhighlights fhighlights nhighlights rhighlights | 
 |  | 
 |     if {[info exists nhighlights($row)] && $nhighlights($row) > 0} { | 
 | 	return $nhighlights($row) | 
 |     } | 
 |     if {[info exists vhighlights($row)] && $vhighlights($row) > 0} { | 
 | 	return $vhighlights($row) | 
 |     } | 
 |     if {[info exists fhighlights($row)] && $fhighlights($row) > 0} { | 
 | 	return $fhighlights($row) | 
 |     } | 
 |     if {[info exists rhighlights($row)] && $rhighlights($row) > 0} { | 
 | 	return $rhighlights($row) | 
 |     } | 
 |     return 0 | 
 | } | 
 |  | 
 | proc bolden {row font} { | 
 |     global canv linehtag selectedline boldrows | 
 |  | 
 |     lappend boldrows $row | 
 |     $canv itemconf $linehtag($row) -font $font | 
 |     if {[info exists selectedline] && $row == $selectedline} { | 
 | 	$canv delete secsel | 
 | 	set t [eval $canv create rect [$canv bbox $linehtag($row)] \ | 
 | 		   -outline {{}} -tags secsel \ | 
 | 		   -fill [$canv cget -selectbackground]] | 
 | 	$canv lower $t | 
 |     } | 
 | } | 
 |  | 
 | proc bolden_name {row font} { | 
 |     global canv2 linentag selectedline boldnamerows | 
 |  | 
 |     lappend boldnamerows $row | 
 |     $canv2 itemconf $linentag($row) -font $font | 
 |     if {[info exists selectedline] && $row == $selectedline} { | 
 | 	$canv2 delete secsel | 
 | 	set t [eval $canv2 create rect [$canv2 bbox $linentag($row)] \ | 
 | 		   -outline {{}} -tags secsel \ | 
 | 		   -fill [$canv2 cget -selectbackground]] | 
 | 	$canv2 lower $t | 
 |     } | 
 | } | 
 |  | 
 | proc unbolden {} { | 
 |     global mainfont boldrows | 
 |  | 
 |     set stillbold {} | 
 |     foreach row $boldrows { | 
 | 	if {![ishighlighted $row]} { | 
 | 	    bolden $row $mainfont | 
 | 	} else { | 
 | 	    lappend stillbold $row | 
 | 	} | 
 |     } | 
 |     set boldrows $stillbold | 
 | } | 
 |  | 
 | proc addvhighlight {n} { | 
 |     global hlview curview viewdata vhl_done vhighlights commitidx | 
 |  | 
 |     if {[info exists hlview]} { | 
 | 	delvhighlight | 
 |     } | 
 |     set hlview $n | 
 |     if {$n != $curview && ![info exists viewdata($n)]} { | 
 | 	set viewdata($n) [list getcommits {{}} {{}} {} {} {} 0 0 0 {}] | 
 | 	set vparentlist($n) {} | 
 | 	set vdisporder($n) {} | 
 | 	set vcmitlisted($n) {} | 
 | 	start_rev_list $n | 
 |     } | 
 |     set vhl_done $commitidx($hlview) | 
 |     if {$vhl_done > 0} { | 
 | 	drawvisible | 
 |     } | 
 | } | 
 |  | 
 | proc delvhighlight {} { | 
 |     global hlview vhighlights | 
 |  | 
 |     if {![info exists hlview]} return | 
 |     unset hlview | 
 |     catch {unset vhighlights} | 
 |     unbolden | 
 | } | 
 |  | 
 | proc vhighlightmore {} { | 
 |     global hlview vhl_done commitidx vhighlights | 
 |     global displayorder vdisporder curview mainfont | 
 |  | 
 |     set font [concat $mainfont bold] | 
 |     set max $commitidx($hlview) | 
 |     if {$hlview == $curview} { | 
 | 	set disp $displayorder | 
 |     } else { | 
 | 	set disp $vdisporder($hlview) | 
 |     } | 
 |     set vr [visiblerows] | 
 |     set r0 [lindex $vr 0] | 
 |     set r1 [lindex $vr 1] | 
 |     for {set i $vhl_done} {$i < $max} {incr i} { | 
 | 	set id [lindex $disp $i] | 
 | 	if {[info exists commitrow($curview,$id)]} { | 
 | 	    set row $commitrow($curview,$id) | 
 | 	    if {$r0 <= $row && $row <= $r1} { | 
 | 		if {![highlighted $row]} { | 
 | 		    bolden $row $font | 
 | 		} | 
 | 		set vhighlights($row) 1 | 
 | 	    } | 
 | 	} | 
 |     } | 
 |     set vhl_done $max | 
 | } | 
 |  | 
 | proc askvhighlight {row id} { | 
 |     global hlview vhighlights commitrow iddrawn mainfont | 
 |  | 
 |     if {[info exists commitrow($hlview,$id)]} { | 
 | 	if {[info exists iddrawn($id)] && ![ishighlighted $row]} { | 
 | 	    bolden $row [concat $mainfont bold] | 
 | 	} | 
 | 	set vhighlights($row) 1 | 
 |     } else { | 
 | 	set vhighlights($row) 0 | 
 |     } | 
 | } | 
 |  | 
 | proc hfiles_change {name ix op} { | 
 |     global highlight_files filehighlight fhighlights fh_serial | 
 |     global mainfont highlight_paths | 
 |  | 
 |     if {[info exists filehighlight]} { | 
 | 	# delete previous highlights | 
 | 	catch {close $filehighlight} | 
 | 	unset filehighlight | 
 | 	catch {unset fhighlights} | 
 | 	unbolden | 
 | 	unhighlight_filelist | 
 |     } | 
 |     set highlight_paths {} | 
 |     after cancel do_file_hl $fh_serial | 
 |     incr fh_serial | 
 |     if {$highlight_files ne {}} { | 
 | 	after 300 do_file_hl $fh_serial | 
 |     } | 
 | } | 
 |  | 
 | proc makepatterns {l} { | 
 |     set ret {} | 
 |     foreach e $l { | 
 | 	set ee [string map {"*" "\\*" "?" "\\?" "\[" "\\\[" "\\" "\\\\"} $e] | 
 | 	if {[string index $ee end] eq "/"} { | 
 | 	    lappend ret "$ee*" | 
 | 	} else { | 
 | 	    lappend ret $ee | 
 | 	    lappend ret "$ee/*" | 
 | 	} | 
 |     } | 
 |     return $ret | 
 | } | 
 |  | 
 | proc do_file_hl {serial} { | 
 |     global highlight_files filehighlight highlight_paths gdttype fhl_list | 
 |  | 
 |     if {$gdttype eq "touching paths:"} { | 
 | 	if {[catch {set paths [shellsplit $highlight_files]}]} return | 
 | 	set highlight_paths [makepatterns $paths] | 
 | 	highlight_filelist | 
 | 	set gdtargs [concat -- $paths] | 
 |     } else { | 
 | 	set gdtargs [list "-S$highlight_files"] | 
 |     } | 
 |     set cmd [concat | git diff-tree -r -s --stdin $gdtargs] | 
 |     set filehighlight [open $cmd r+] | 
 |     fconfigure $filehighlight -blocking 0 | 
 |     filerun $filehighlight readfhighlight | 
 |     set fhl_list {} | 
 |     drawvisible | 
 |     flushhighlights | 
 | } | 
 |  | 
 | proc flushhighlights {} { | 
 |     global filehighlight fhl_list | 
 |  | 
 |     if {[info exists filehighlight]} { | 
 | 	lappend fhl_list {} | 
 | 	puts $filehighlight "" | 
 | 	flush $filehighlight | 
 |     } | 
 | } | 
 |  | 
 | proc askfilehighlight {row id} { | 
 |     global filehighlight fhighlights fhl_list | 
 |  | 
 |     lappend fhl_list $id | 
 |     set fhighlights($row) -1 | 
 |     puts $filehighlight $id | 
 | } | 
 |  | 
 | proc readfhighlight {} { | 
 |     global filehighlight fhighlights commitrow curview mainfont iddrawn | 
 |     global fhl_list | 
 |  | 
 |     if {![info exists filehighlight]} { | 
 | 	return 0 | 
 |     } | 
 |     set nr 0 | 
 |     while {[incr nr] <= 100 && [gets $filehighlight line] >= 0} { | 
 | 	set line [string trim $line] | 
 | 	set i [lsearch -exact $fhl_list $line] | 
 | 	if {$i < 0} continue | 
 | 	for {set j 0} {$j < $i} {incr j} { | 
 | 	    set id [lindex $fhl_list $j] | 
 | 	    if {[info exists commitrow($curview,$id)]} { | 
 | 		set fhighlights($commitrow($curview,$id)) 0 | 
 | 	    } | 
 | 	} | 
 | 	set fhl_list [lrange $fhl_list [expr {$i+1}] end] | 
 | 	if {$line eq {}} continue | 
 | 	if {![info exists commitrow($curview,$line)]} continue | 
 | 	set row $commitrow($curview,$line) | 
 | 	if {[info exists iddrawn($line)] && ![ishighlighted $row]} { | 
 | 	    bolden $row [concat $mainfont bold] | 
 | 	} | 
 | 	set fhighlights($row) 1 | 
 |     } | 
 |     if {[eof $filehighlight]} { | 
 | 	# strange... | 
 | 	puts "oops, git diff-tree died" | 
 | 	catch {close $filehighlight} | 
 | 	unset filehighlight | 
 | 	return 0 | 
 |     } | 
 |     next_hlcont | 
 |     return 1 | 
 | } | 
 |  | 
 | proc find_change {name ix op} { | 
 |     global nhighlights mainfont boldnamerows | 
 |     global findstring findpattern findtype | 
 |  | 
 |     # delete previous highlights, if any | 
 |     foreach row $boldnamerows { | 
 | 	bolden_name $row $mainfont | 
 |     } | 
 |     set boldnamerows {} | 
 |     catch {unset nhighlights} | 
 |     unbolden | 
 |     unmarkmatches | 
 |     if {$findtype ne "Regexp"} { | 
 | 	set e [string map {"*" "\\*" "?" "\\?" "\[" "\\\[" "\\" "\\\\"} \ | 
 | 		   $findstring] | 
 | 	set findpattern "*$e*" | 
 |     } | 
 |     drawvisible | 
 | } | 
 |  | 
 | proc doesmatch {f} { | 
 |     global findtype findstring findpattern | 
 |  | 
 |     if {$findtype eq "Regexp"} { | 
 | 	return [regexp $findstring $f] | 
 |     } elseif {$findtype eq "IgnCase"} { | 
 | 	return [string match -nocase $findpattern $f] | 
 |     } else { | 
 | 	return [string match $findpattern $f] | 
 |     } | 
 | } | 
 |  | 
 | proc askfindhighlight {row id} { | 
 |     global nhighlights commitinfo iddrawn mainfont | 
 |     global findloc | 
 |     global markingmatches | 
 |  | 
 |     if {![info exists commitinfo($id)]} { | 
 | 	getcommit $id | 
 |     } | 
 |     set info $commitinfo($id) | 
 |     set isbold 0 | 
 |     set fldtypes {Headline Author Date Committer CDate Comments} | 
 |     foreach f $info ty $fldtypes { | 
 | 	if {($findloc eq "All fields" || $findloc eq $ty) && | 
 | 	    [doesmatch $f]} { | 
 | 	    if {$ty eq "Author"} { | 
 | 		set isbold 2 | 
 | 		break | 
 | 	    } | 
 | 	    set isbold 1 | 
 | 	} | 
 |     } | 
 |     if {$isbold && [info exists iddrawn($id)]} { | 
 | 	set f [concat $mainfont bold] | 
 | 	if {![ishighlighted $row]} { | 
 | 	    bolden $row $f | 
 | 	    if {$isbold > 1} { | 
 | 		bolden_name $row $f | 
 | 	    } | 
 | 	} | 
 | 	if {$markingmatches} { | 
 | 	    markrowmatches $row $id | 
 | 	} | 
 |     } | 
 |     set nhighlights($row) $isbold | 
 | } | 
 |  | 
 | proc markrowmatches {row id} { | 
 |     global canv canv2 linehtag linentag commitinfo findloc | 
 |  | 
 |     set headline [lindex $commitinfo($id) 0] | 
 |     set author [lindex $commitinfo($id) 1] | 
 |     $canv delete match$row | 
 |     $canv2 delete match$row | 
 |     if {$findloc eq "All fields" || $findloc eq "Headline"} { | 
 | 	set m [findmatches $headline] | 
 | 	if {$m ne {}} { | 
 | 	    markmatches $canv $row $headline $linehtag($row) $m \ | 
 | 		[$canv itemcget $linehtag($row) -font] $row | 
 | 	} | 
 |     } | 
 |     if {$findloc eq "All fields" || $findloc eq "Author"} { | 
 | 	set m [findmatches $author] | 
 | 	if {$m ne {}} { | 
 | 	    markmatches $canv2 $row $author $linentag($row) $m \ | 
 | 		[$canv2 itemcget $linentag($row) -font] $row | 
 | 	} | 
 |     } | 
 | } | 
 |  | 
 | proc vrel_change {name ix op} { | 
 |     global highlight_related | 
 |  | 
 |     rhighlight_none | 
 |     if {$highlight_related ne "None"} { | 
 | 	run drawvisible | 
 |     } | 
 | } | 
 |  | 
 | # prepare for testing whether commits are descendents or ancestors of a | 
 | proc rhighlight_sel {a} { | 
 |     global descendent desc_todo ancestor anc_todo | 
 |     global highlight_related rhighlights | 
 |  | 
 |     catch {unset descendent} | 
 |     set desc_todo [list $a] | 
 |     catch {unset ancestor} | 
 |     set anc_todo [list $a] | 
 |     if {$highlight_related ne "None"} { | 
 | 	rhighlight_none | 
 | 	run drawvisible | 
 |     } | 
 | } | 
 |  | 
 | proc rhighlight_none {} { | 
 |     global rhighlights | 
 |  | 
 |     catch {unset rhighlights} | 
 |     unbolden | 
 | } | 
 |  | 
 | proc is_descendent {a} { | 
 |     global curview children commitrow descendent desc_todo | 
 |  | 
 |     set v $curview | 
 |     set la $commitrow($v,$a) | 
 |     set todo $desc_todo | 
 |     set leftover {} | 
 |     set done 0 | 
 |     for {set i 0} {$i < [llength $todo]} {incr i} { | 
 | 	set do [lindex $todo $i] | 
 | 	if {$commitrow($v,$do) < $la} { | 
 | 	    lappend leftover $do | 
 | 	    continue | 
 | 	} | 
 | 	foreach nk $children($v,$do) { | 
 | 	    if {![info exists descendent($nk)]} { | 
 | 		set descendent($nk) 1 | 
 | 		lappend todo $nk | 
 | 		if {$nk eq $a} { | 
 | 		    set done 1 | 
 | 		} | 
 | 	    } | 
 | 	} | 
 | 	if {$done} { | 
 | 	    set desc_todo [concat $leftover [lrange $todo [expr {$i+1}] end]] | 
 | 	    return | 
 | 	} | 
 |     } | 
 |     set descendent($a) 0 | 
 |     set desc_todo $leftover | 
 | } | 
 |  | 
 | proc is_ancestor {a} { | 
 |     global curview parentlist commitrow ancestor anc_todo | 
 |  | 
 |     set v $curview | 
 |     set la $commitrow($v,$a) | 
 |     set todo $anc_todo | 
 |     set leftover {} | 
 |     set done 0 | 
 |     for {set i 0} {$i < [llength $todo]} {incr i} { | 
 | 	set do [lindex $todo $i] | 
 | 	if {![info exists commitrow($v,$do)] || $commitrow($v,$do) > $la} { | 
 | 	    lappend leftover $do | 
 | 	    continue | 
 | 	} | 
 | 	foreach np [lindex $parentlist $commitrow($v,$do)] { | 
 | 	    if {![info exists ancestor($np)]} { | 
 | 		set ancestor($np) 1 | 
 | 		lappend todo $np | 
 | 		if {$np eq $a} { | 
 | 		    set done 1 | 
 | 		} | 
 | 	    } | 
 | 	} | 
 | 	if {$done} { | 
 | 	    set anc_todo [concat $leftover [lrange $todo [expr {$i+1}] end]] | 
 | 	    return | 
 | 	} | 
 |     } | 
 |     set ancestor($a) 0 | 
 |     set anc_todo $leftover | 
 | } | 
 |  | 
 | proc askrelhighlight {row id} { | 
 |     global descendent highlight_related iddrawn mainfont rhighlights | 
 |     global selectedline ancestor | 
 |  | 
 |     if {![info exists selectedline]} return | 
 |     set isbold 0 | 
 |     if {$highlight_related eq "Descendent" || | 
 | 	$highlight_related eq "Not descendent"} { | 
 | 	if {![info exists descendent($id)]} { | 
 | 	    is_descendent $id | 
 | 	} | 
 | 	if {$descendent($id) == ($highlight_related eq "Descendent")} { | 
 | 	    set isbold 1 | 
 | 	} | 
 |     } elseif {$highlight_related eq "Ancestor" || | 
 | 	      $highlight_related eq "Not ancestor"} { | 
 | 	if {![info exists ancestor($id)]} { | 
 | 	    is_ancestor $id | 
 | 	} | 
 | 	if {$ancestor($id) == ($highlight_related eq "Ancestor")} { | 
 | 	    set isbold 1 | 
 | 	} | 
 |     } | 
 |     if {[info exists iddrawn($id)]} { | 
 | 	if {$isbold && ![ishighlighted $row]} { | 
 | 	    bolden $row [concat $mainfont bold] | 
 | 	} | 
 |     } | 
 |     set rhighlights($row) $isbold | 
 | } | 
 |  | 
 | proc next_hlcont {} { | 
 |     global fhl_row fhl_dirn displayorder numcommits | 
 |     global vhighlights fhighlights nhighlights rhighlights | 
 |     global hlview filehighlight findstring highlight_related | 
 |  | 
 |     if {![info exists fhl_dirn] || $fhl_dirn == 0} return | 
 |     set row $fhl_row | 
 |     while {1} { | 
 | 	if {$row < 0 || $row >= $numcommits} { | 
 | 	    bell | 
 | 	    set fhl_dirn 0 | 
 | 	    return | 
 | 	} | 
 | 	set id [lindex $displayorder $row] | 
 | 	if {[info exists hlview]} { | 
 | 	    if {![info exists vhighlights($row)]} { | 
 | 		askvhighlight $row $id | 
 | 	    } | 
 | 	    if {$vhighlights($row) > 0} break | 
 | 	} | 
 | 	if {$findstring ne {}} { | 
 | 	    if {![info exists nhighlights($row)]} { | 
 | 		askfindhighlight $row $id | 
 | 	    } | 
 | 	    if {$nhighlights($row) > 0} break | 
 | 	} | 
 | 	if {$highlight_related ne "None"} { | 
 | 	    if {![info exists rhighlights($row)]} { | 
 | 		askrelhighlight $row $id | 
 | 	    } | 
 | 	    if {$rhighlights($row) > 0} break | 
 | 	} | 
 | 	if {[info exists filehighlight]} { | 
 | 	    if {![info exists fhighlights($row)]} { | 
 | 		# ask for a few more while we're at it... | 
 | 		set r $row | 
 | 		for {set n 0} {$n < 100} {incr n} { | 
 | 		    if {![info exists fhighlights($r)]} { | 
 | 			askfilehighlight $r [lindex $displayorder $r] | 
 | 		    } | 
 | 		    incr r $fhl_dirn | 
 | 		    if {$r < 0 || $r >= $numcommits} break | 
 | 		} | 
 | 		flushhighlights | 
 | 	    } | 
 | 	    if {$fhighlights($row) < 0} { | 
 | 		set fhl_row $row | 
 | 		return | 
 | 	    } | 
 | 	    if {$fhighlights($row) > 0} break | 
 | 	} | 
 | 	incr row $fhl_dirn | 
 |     } | 
 |     set fhl_dirn 0 | 
 |     selectline $row 1 | 
 | } | 
 |  | 
 | proc next_highlight {dirn} { | 
 |     global selectedline fhl_row fhl_dirn | 
 |     global hlview filehighlight findstring highlight_related | 
 |  | 
 |     if {![info exists selectedline]} return | 
 |     if {!([info exists hlview] || $findstring ne {} || | 
 | 	  $highlight_related ne "None" || [info exists filehighlight])} return | 
 |     set fhl_row [expr {$selectedline + $dirn}] | 
 |     set fhl_dirn $dirn | 
 |     next_hlcont | 
 | } | 
 |  | 
 | proc cancel_next_highlight {} { | 
 |     global fhl_dirn | 
 |  | 
 |     set fhl_dirn 0 | 
 | } | 
 |  | 
 | # Graph layout functions | 
 |  | 
 | proc shortids {ids} { | 
 |     set res {} | 
 |     foreach id $ids { | 
 | 	if {[llength $id] > 1} { | 
 | 	    lappend res [shortids $id] | 
 | 	} elseif {[regexp {^[0-9a-f]{40}$} $id]} { | 
 | 	    lappend res [string range $id 0 7] | 
 | 	} else { | 
 | 	    lappend res $id | 
 | 	} | 
 |     } | 
 |     return $res | 
 | } | 
 |  | 
 | proc incrange {l x o} { | 
 |     set n [llength $l] | 
 |     while {$x < $n} { | 
 | 	set e [lindex $l $x] | 
 | 	if {$e ne {}} { | 
 | 	    lset l $x [expr {$e + $o}] | 
 | 	} | 
 | 	incr x | 
 |     } | 
 |     return $l | 
 | } | 
 |  | 
 | proc ntimes {n o} { | 
 |     set ret {} | 
 |     for {} {$n > 0} {incr n -1} { | 
 | 	lappend ret $o | 
 |     } | 
 |     return $ret | 
 | } | 
 |  | 
 | proc usedinrange {id l1 l2} { | 
 |     global children commitrow curview | 
 |  | 
 |     if {[info exists commitrow($curview,$id)]} { | 
 | 	set r $commitrow($curview,$id) | 
 | 	if {$l1 <= $r && $r <= $l2} { | 
 | 	    return [expr {$r - $l1 + 1}] | 
 | 	} | 
 |     } | 
 |     set kids $children($curview,$id) | 
 |     foreach c $kids { | 
 | 	set r $commitrow($curview,$c) | 
 | 	if {$l1 <= $r && $r <= $l2} { | 
 | 	    return [expr {$r - $l1 + 1}] | 
 | 	} | 
 |     } | 
 |     return 0 | 
 | } | 
 |  | 
 | proc sanity {row {full 0}} { | 
 |     global rowidlist rowoffsets | 
 |  | 
 |     set col -1 | 
 |     set ids [lindex $rowidlist $row] | 
 |     foreach id $ids { | 
 | 	incr col | 
 | 	if {$id eq {}} continue | 
 | 	if {$col < [llength $ids] - 1 && | 
 | 	    [lsearch -exact -start [expr {$col+1}] $ids $id] >= 0} { | 
 | 	    puts "oops: [shortids $id] repeated in row $row col $col: {[shortids [lindex $rowidlist $row]]}" | 
 | 	} | 
 | 	set o [lindex $rowoffsets $row $col] | 
 | 	set y $row | 
 | 	set x $col | 
 | 	while {$o ne {}} { | 
 | 	    incr y -1 | 
 | 	    incr x $o | 
 | 	    if {[lindex $rowidlist $y $x] != $id} { | 
 | 		puts "oops: rowoffsets wrong at row [expr {$y+1}] col [expr {$x-$o}]" | 
 | 		puts "  id=[shortids $id] check started at row $row" | 
 | 		for {set i $row} {$i >= $y} {incr i -1} { | 
 | 		    puts "  row $i ids={[shortids [lindex $rowidlist $i]]} offs={[lindex $rowoffsets $i]}" | 
 | 		} | 
 | 		break | 
 | 	    } | 
 | 	    if {!$full} break | 
 | 	    set o [lindex $rowoffsets $y $x] | 
 | 	} | 
 |     } | 
 | } | 
 |  | 
 | proc makeuparrow {oid x y z} { | 
 |     global rowidlist rowoffsets uparrowlen idrowranges displayorder | 
 |  | 
 |     for {set i 1} {$i < $uparrowlen && $y > 1} {incr i} { | 
 | 	incr y -1 | 
 | 	incr x $z | 
 | 	set off0 [lindex $rowoffsets $y] | 
 | 	for {set x0 $x} {1} {incr x0} { | 
 | 	    if {$x0 >= [llength $off0]} { | 
 | 		set x0 [llength [lindex $rowoffsets [expr {$y-1}]]] | 
 | 		break | 
 | 	    } | 
 | 	    set z [lindex $off0 $x0] | 
 | 	    if {$z ne {}} { | 
 | 		incr x0 $z | 
 | 		break | 
 | 	    } | 
 | 	} | 
 | 	set z [expr {$x0 - $x}] | 
 | 	lset rowidlist $y [linsert [lindex $rowidlist $y] $x $oid] | 
 | 	lset rowoffsets $y [linsert [lindex $rowoffsets $y] $x $z] | 
 |     } | 
 |     set tmp [lreplace [lindex $rowoffsets $y] $x $x {}] | 
 |     lset rowoffsets $y [incrange $tmp [expr {$x+1}] -1] | 
 |     lappend idrowranges($oid) [lindex $displayorder $y] | 
 | } | 
 |  | 
 | proc initlayout {} { | 
 |     global rowidlist rowoffsets displayorder commitlisted | 
 |     global rowlaidout rowoptim | 
 |     global idinlist rowchk rowrangelist idrowranges | 
 |     global numcommits canvxmax canv | 
 |     global nextcolor | 
 |     global parentlist | 
 |     global colormap rowtextx | 
 |     global selectfirst | 
 |  | 
 |     set numcommits 0 | 
 |     set displayorder {} | 
 |     set commitlisted {} | 
 |     set parentlist {} | 
 |     set rowrangelist {} | 
 |     set nextcolor 0 | 
 |     set rowidlist {{}} | 
 |     set rowoffsets {{}} | 
 |     catch {unset idinlist} | 
 |     catch {unset rowchk} | 
 |     set rowlaidout 0 | 
 |     set rowoptim 0 | 
 |     set canvxmax [$canv cget -width] | 
 |     catch {unset colormap} | 
 |     catch {unset rowtextx} | 
 |     catch {unset idrowranges} | 
 |     set selectfirst 1 | 
 | } | 
 |  | 
 | proc setcanvscroll {} { | 
 |     global canv canv2 canv3 numcommits linespc canvxmax canvy0 | 
 |  | 
 |     set ymax [expr {$canvy0 + ($numcommits - 0.5) * $linespc + 2}] | 
 |     $canv conf -scrollregion [list 0 0 $canvxmax $ymax] | 
 |     $canv2 conf -scrollregion [list 0 0 0 $ymax] | 
 |     $canv3 conf -scrollregion [list 0 0 0 $ymax] | 
 | } | 
 |  | 
 | proc visiblerows {} { | 
 |     global canv numcommits linespc | 
 |  | 
 |     set ymax [lindex [$canv cget -scrollregion] 3] | 
 |     if {$ymax eq {} || $ymax == 0} return | 
 |     set f [$canv yview] | 
 |     set y0 [expr {int([lindex $f 0] * $ymax)}] | 
 |     set r0 [expr {int(($y0 - 3) / $linespc) - 1}] | 
 |     if {$r0 < 0} { | 
 | 	set r0 0 | 
 |     } | 
 |     set y1 [expr {int([lindex $f 1] * $ymax)}] | 
 |     set r1 [expr {int(($y1 - 3) / $linespc) + 1}] | 
 |     if {$r1 >= $numcommits} { | 
 | 	set r1 [expr {$numcommits - 1}] | 
 |     } | 
 |     return [list $r0 $r1] | 
 | } | 
 |  | 
 | proc layoutmore {tmax allread} { | 
 |     global rowlaidout rowoptim commitidx numcommits optim_delay | 
 |     global uparrowlen curview rowidlist idinlist | 
 |  | 
 |     set showlast 0 | 
 |     set showdelay $optim_delay | 
 |     set optdelay [expr {$uparrowlen + 1}] | 
 |     while {1} { | 
 | 	if {$rowoptim - $showdelay > $numcommits} { | 
 | 	    showstuff [expr {$rowoptim - $showdelay}] $showlast | 
 | 	} elseif {$rowlaidout - $optdelay > $rowoptim} { | 
 | 	    set nr [expr {$rowlaidout - $optdelay - $rowoptim}] | 
 | 	    if {$nr > 100} { | 
 | 		set nr 100 | 
 | 	    } | 
 | 	    optimize_rows $rowoptim 0 [expr {$rowoptim + $nr}] | 
 | 	    incr rowoptim $nr | 
 | 	} elseif {$commitidx($curview) > $rowlaidout} { | 
 | 	    set nr [expr {$commitidx($curview) - $rowlaidout}] | 
 | 	    # may need to increase this threshold if uparrowlen or | 
 | 	    # mingaplen are increased... | 
 | 	    if {$nr > 150} { | 
 | 		set nr 150 | 
 | 	    } | 
 | 	    set row $rowlaidout | 
 | 	    set rowlaidout [layoutrows $row [expr {$row + $nr}] $allread] | 
 | 	    if {$rowlaidout == $row} { | 
 | 		return 0 | 
 | 	    } | 
 | 	} elseif {$allread} { | 
 | 	    set optdelay 0 | 
 | 	    set nrows $commitidx($curview) | 
 | 	    if {[lindex $rowidlist $nrows] ne {} || | 
 | 		[array names idinlist] ne {}} { | 
 | 		layouttail | 
 | 		set rowlaidout $commitidx($curview) | 
 | 	    } elseif {$rowoptim == $nrows} { | 
 | 		set showdelay 0 | 
 | 		set showlast 1 | 
 | 		if {$numcommits == $nrows} { | 
 | 		    return 0 | 
 | 		} | 
 | 	    } | 
 | 	} else { | 
 | 	    return 0 | 
 | 	} | 
 | 	if {$tmax ne {} && [clock clicks -milliseconds] >= $tmax} { | 
 | 	    return 1 | 
 | 	} | 
 |     } | 
 | } | 
 |  | 
 | proc showstuff {canshow last} { | 
 |     global numcommits commitrow pending_select selectedline curview | 
 |     global lookingforhead mainheadid displayorder selectfirst | 
 |     global lastscrollset commitinterest | 
 |  | 
 |     if {$numcommits == 0} { | 
 | 	global phase | 
 | 	set phase "incrdraw" | 
 | 	allcanvs delete all | 
 |     } | 
 |     for {set l $numcommits} {$l < $canshow} {incr l} { | 
 | 	set id [lindex $displayorder $l] | 
 | 	if {[info exists commitinterest($id)]} { | 
 | 	    foreach script $commitinterest($id) { | 
 | 		eval [string map [list "%I" $id] $script] | 
 | 	    } | 
 | 	    unset commitinterest($id) | 
 | 	} | 
 |     } | 
 |     set r0 $numcommits | 
 |     set prev $numcommits | 
 |     set numcommits $canshow | 
 |     set t [clock clicks -milliseconds] | 
 |     if {$prev < 100 || $last || $t - $lastscrollset > 500} { | 
 | 	set lastscrollset $t | 
 | 	setcanvscroll | 
 |     } | 
 |     set rows [visiblerows] | 
 |     set r1 [lindex $rows 1] | 
 |     if {$r1 >= $canshow} { | 
 | 	set r1 [expr {$canshow - 1}] | 
 |     } | 
 |     if {$r0 <= $r1} { | 
 | 	drawcommits $r0 $r1 | 
 |     } | 
 |     if {[info exists pending_select] && | 
 | 	[info exists commitrow($curview,$pending_select)] && | 
 | 	$commitrow($curview,$pending_select) < $numcommits} { | 
 | 	selectline $commitrow($curview,$pending_select) 1 | 
 |     } | 
 |     if {$selectfirst} { | 
 | 	if {[info exists selectedline] || [info exists pending_select]} { | 
 | 	    set selectfirst 0 | 
 | 	} else { | 
 | 	    set l [first_real_row] | 
 | 	    selectline $l 1 | 
 | 	    set selectfirst 0 | 
 | 	} | 
 |     } | 
 |     if {$lookingforhead && [info exists commitrow($curview,$mainheadid)] | 
 | 	&& ($last || $commitrow($curview,$mainheadid) < $numcommits - 1)} { | 
 | 	set lookingforhead 0 | 
 | 	dodiffindex | 
 |     } | 
 | } | 
 |  | 
 | proc doshowlocalchanges {} { | 
 |     global lookingforhead curview mainheadid phase commitrow | 
 |  | 
 |     if {[info exists commitrow($curview,$mainheadid)] && | 
 | 	($phase eq {} || $commitrow($curview,$mainheadid) < $numcommits - 1)} { | 
 | 	dodiffindex | 
 |     } elseif {$phase ne {}} { | 
 | 	set lookingforhead 1 | 
 |     } | 
 | } | 
 |  | 
 | proc dohidelocalchanges {} { | 
 |     global lookingforhead localfrow localirow lserial | 
 |  | 
 |     set lookingforhead 0 | 
 |     if {$localfrow >= 0} { | 
 | 	removerow $localfrow | 
 | 	set localfrow -1 | 
 | 	if {$localirow > 0} { | 
 | 	    incr localirow -1 | 
 | 	} | 
 |     } | 
 |     if {$localirow >= 0} { | 
 | 	removerow $localirow | 
 | 	set localirow -1 | 
 |     } | 
 |     incr lserial | 
 | } | 
 |  | 
 | # spawn off a process to do git diff-index --cached HEAD | 
 | proc dodiffindex {} { | 
 |     global localirow localfrow lserial | 
 |  | 
 |     incr lserial | 
 |     set localfrow -1 | 
 |     set localirow -1 | 
 |     set fd [open "|git diff-index --cached HEAD" r] | 
 |     fconfigure $fd -blocking 0 | 
 |     filerun $fd [list readdiffindex $fd $lserial] | 
 | } | 
 |  | 
 | proc readdiffindex {fd serial} { | 
 |     global localirow commitrow mainheadid nullid2 curview | 
 |     global commitinfo commitdata lserial | 
 |  | 
 |     set isdiff 1 | 
 |     if {[gets $fd line] < 0} { | 
 | 	if {![eof $fd]} { | 
 | 	    return 1 | 
 | 	} | 
 | 	set isdiff 0 | 
 |     } | 
 |     # we only need to see one line and we don't really care what it says... | 
 |     close $fd | 
 |  | 
 |     # now see if there are any local changes not checked in to the index | 
 |     if {$serial == $lserial} { | 
 | 	set fd [open "|git diff-files" r] | 
 | 	fconfigure $fd -blocking 0 | 
 | 	filerun $fd [list readdifffiles $fd $serial] | 
 |     } | 
 |  | 
 |     if {$isdiff && $serial == $lserial && $localirow == -1} { | 
 | 	# add the line for the changes in the index to the graph | 
 | 	set localirow $commitrow($curview,$mainheadid) | 
 | 	set hl "Local changes checked in to index but not committed" | 
 | 	set commitinfo($nullid2) [list  $hl {} {} {} {} "    $hl\n"] | 
 | 	set commitdata($nullid2) "\n    $hl\n" | 
 | 	insertrow $localirow $nullid2 | 
 |     } | 
 |     return 0 | 
 | } | 
 |  | 
 | proc readdifffiles {fd serial} { | 
 |     global localirow localfrow commitrow mainheadid nullid curview | 
 |     global commitinfo commitdata lserial | 
 |  | 
 |     set isdiff 1 | 
 |     if {[gets $fd line] < 0} { | 
 | 	if {![eof $fd]} { | 
 | 	    return 1 | 
 | 	} | 
 | 	set isdiff 0 | 
 |     } | 
 |     # we only need to see one line and we don't really care what it says... | 
 |     close $fd | 
 |  | 
 |     if {$isdiff && $serial == $lserial && $localfrow == -1} { | 
 | 	# add the line for the local diff to the graph | 
 | 	if {$localirow >= 0} { | 
 | 	    set localfrow $localirow | 
 | 	    incr localirow | 
 | 	} else { | 
 | 	    set localfrow $commitrow($curview,$mainheadid) | 
 | 	} | 
 | 	set hl "Local uncommitted changes, not checked in to index" | 
 | 	set commitinfo($nullid) [list  $hl {} {} {} {} "    $hl\n"] | 
 | 	set commitdata($nullid) "\n    $hl\n" | 
 | 	insertrow $localfrow $nullid | 
 |     } | 
 |     return 0 | 
 | } | 
 |  | 
 | proc layoutrows {row endrow last} { | 
 |     global rowidlist rowoffsets displayorder | 
 |     global uparrowlen downarrowlen maxwidth mingaplen | 
 |     global children parentlist | 
 |     global idrowranges | 
 |     global commitidx curview | 
 |     global idinlist rowchk rowrangelist | 
 |  | 
 |     set idlist [lindex $rowidlist $row] | 
 |     set offs [lindex $rowoffsets $row] | 
 |     while {$row < $endrow} { | 
 | 	set id [lindex $displayorder $row] | 
 | 	set nev [expr {[llength $idlist] - $maxwidth + 1}] | 
 | 	foreach p [lindex $parentlist $row] { | 
 | 	    if {![info exists idinlist($p)] || !$idinlist($p)} { | 
 | 		incr nev | 
 | 	    } | 
 | 	} | 
 | 	if {$nev > 0} { | 
 | 	    if {!$last && | 
 | 		$row + $uparrowlen + $mingaplen >= $commitidx($curview)} break | 
 | 	    for {set x [llength $idlist]} {[incr x -1] >= 0} {} { | 
 | 		set i [lindex $idlist $x] | 
 | 		if {![info exists rowchk($i)] || $row >= $rowchk($i)} { | 
 | 		    set r [usedinrange $i [expr {$row - $downarrowlen}] \ | 
 | 			       [expr {$row + $uparrowlen + $mingaplen}]] | 
 | 		    if {$r == 0} { | 
 | 			set idlist [lreplace $idlist $x $x] | 
 | 			set offs [lreplace $offs $x $x] | 
 | 			set offs [incrange $offs $x 1] | 
 | 			set idinlist($i) 0 | 
 | 			set rm1 [expr {$row - 1}] | 
 | 			lappend idrowranges($i) [lindex $displayorder $rm1] | 
 | 			if {[incr nev -1] <= 0} break | 
 | 			continue | 
 | 		    } | 
 | 		    set rowchk($i) [expr {$row + $r}] | 
 | 		} | 
 | 	    } | 
 | 	    lset rowidlist $row $idlist | 
 | 	    lset rowoffsets $row $offs | 
 | 	} | 
 | 	set oldolds {} | 
 | 	set newolds {} | 
 | 	foreach p [lindex $parentlist $row] { | 
 | 	    if {![info exists idinlist($p)]} { | 
 | 		lappend newolds $p | 
 | 	    } elseif {!$idinlist($p)} { | 
 | 		lappend oldolds $p | 
 | 	    } | 
 | 	    set idinlist($p) 1 | 
 | 	} | 
 | 	set col [lsearch -exact $idlist $id] | 
 | 	if {$col < 0} { | 
 | 	    set col [llength $idlist] | 
 | 	    lappend idlist $id | 
 | 	    lset rowidlist $row $idlist | 
 | 	    set z {} | 
 | 	    if {$children($curview,$id) ne {}} { | 
 | 		set z [expr {[llength [lindex $rowidlist [expr {$row-1}]]] - $col}] | 
 | 		unset idinlist($id) | 
 | 	    } | 
 | 	    lappend offs $z | 
 | 	    lset rowoffsets $row $offs | 
 | 	    if {$z ne {}} { | 
 | 		makeuparrow $id $col $row $z | 
 | 	    } | 
 | 	} else { | 
 | 	    unset idinlist($id) | 
 | 	} | 
 | 	set ranges {} | 
 | 	if {[info exists idrowranges($id)]} { | 
 | 	    set ranges $idrowranges($id) | 
 | 	    lappend ranges $id | 
 | 	    unset idrowranges($id) | 
 | 	} | 
 | 	lappend rowrangelist $ranges | 
 | 	incr row | 
 | 	set offs [ntimes [llength $idlist] 0] | 
 | 	set l [llength $newolds] | 
 | 	set idlist [eval lreplace \$idlist $col $col $newolds] | 
 | 	set o 0 | 
 | 	if {$l != 1} { | 
 | 	    set offs [lrange $offs 0 [expr {$col - 1}]] | 
 | 	    foreach x $newolds { | 
 | 		lappend offs {} | 
 | 		incr o -1 | 
 | 	    } | 
 | 	    incr o | 
 | 	    set tmp [expr {[llength $idlist] - [llength $offs]}] | 
 | 	    if {$tmp > 0} { | 
 | 		set offs [concat $offs [ntimes $tmp $o]] | 
 | 	    } | 
 | 	} else { | 
 | 	    lset offs $col {} | 
 | 	} | 
 | 	foreach i $newolds { | 
 | 	    set idrowranges($i) $id | 
 | 	} | 
 | 	incr col $l | 
 | 	foreach oid $oldolds { | 
 | 	    set idlist [linsert $idlist $col $oid] | 
 | 	    set offs [linsert $offs $col $o] | 
 | 	    makeuparrow $oid $col $row $o | 
 | 	    incr col | 
 | 	} | 
 | 	lappend rowidlist $idlist | 
 | 	lappend rowoffsets $offs | 
 |     } | 
 |     return $row | 
 | } | 
 |  | 
 | proc addextraid {id row} { | 
 |     global displayorder commitrow commitinfo | 
 |     global commitidx commitlisted | 
 |     global parentlist children curview | 
 |  | 
 |     incr commitidx($curview) | 
 |     lappend displayorder $id | 
 |     lappend commitlisted 0 | 
 |     lappend parentlist {} | 
 |     set commitrow($curview,$id) $row | 
 |     readcommit $id | 
 |     if {![info exists commitinfo($id)]} { | 
 | 	set commitinfo($id) {"No commit information available"} | 
 |     } | 
 |     if {![info exists children($curview,$id)]} { | 
 | 	set children($curview,$id) {} | 
 |     } | 
 | } | 
 |  | 
 | proc layouttail {} { | 
 |     global rowidlist rowoffsets idinlist commitidx curview | 
 |     global idrowranges rowrangelist | 
 |  | 
 |     set row $commitidx($curview) | 
 |     set idlist [lindex $rowidlist $row] | 
 |     while {$idlist ne {}} { | 
 | 	set col [expr {[llength $idlist] - 1}] | 
 | 	set id [lindex $idlist $col] | 
 | 	addextraid $id $row | 
 | 	catch {unset idinlist($id)} | 
 | 	lappend idrowranges($id) $id | 
 | 	lappend rowrangelist $idrowranges($id) | 
 | 	unset idrowranges($id) | 
 | 	incr row | 
 | 	set offs [ntimes $col 0] | 
 | 	set idlist [lreplace $idlist $col $col] | 
 | 	lappend rowidlist $idlist | 
 | 	lappend rowoffsets $offs | 
 |     } | 
 |  | 
 |     foreach id [array names idinlist] { | 
 | 	unset idinlist($id) | 
 | 	addextraid $id $row | 
 | 	lset rowidlist $row [list $id] | 
 | 	lset rowoffsets $row 0 | 
 | 	makeuparrow $id 0 $row 0 | 
 | 	lappend idrowranges($id) $id | 
 | 	lappend rowrangelist $idrowranges($id) | 
 | 	unset idrowranges($id) | 
 | 	incr row | 
 | 	lappend rowidlist {} | 
 | 	lappend rowoffsets {} | 
 |     } | 
 | } | 
 |  | 
 | proc insert_pad {row col npad} { | 
 |     global rowidlist rowoffsets | 
 |  | 
 |     set pad [ntimes $npad {}] | 
 |     lset rowidlist $row [eval linsert [list [lindex $rowidlist $row]] $col $pad] | 
 |     set tmp [eval linsert [list [lindex $rowoffsets $row]] $col $pad] | 
 |     lset rowoffsets $row [incrange $tmp [expr {$col + $npad}] [expr {-$npad}]] | 
 | } | 
 |  | 
 | proc optimize_rows {row col endrow} { | 
 |     global rowidlist rowoffsets displayorder | 
 |  | 
 |     for {} {$row < $endrow} {incr row} { | 
 | 	set idlist [lindex $rowidlist $row] | 
 | 	set offs [lindex $rowoffsets $row] | 
 | 	set haspad 0 | 
 | 	for {} {$col < [llength $offs]} {incr col} { | 
 | 	    if {[lindex $idlist $col] eq {}} { | 
 | 		set haspad 1 | 
 | 		continue | 
 | 	    } | 
 | 	    set z [lindex $offs $col] | 
 | 	    if {$z eq {}} continue | 
 | 	    set isarrow 0 | 
 | 	    set x0 [expr {$col + $z}] | 
 | 	    set y0 [expr {$row - 1}] | 
 | 	    set z0 [lindex $rowoffsets $y0 $x0] | 
 | 	    if {$z0 eq {}} { | 
 | 		set id [lindex $idlist $col] | 
 | 		set ranges [rowranges $id] | 
 | 		if {$ranges ne {} && $y0 > [lindex $ranges 0]} { | 
 | 		    set isarrow 1 | 
 | 		} | 
 | 	    } | 
 | 	    # Looking at lines from this row to the previous row, | 
 | 	    # make them go straight up if they end in an arrow on | 
 | 	    # the previous row; otherwise make them go straight up | 
 | 	    # or at 45 degrees. | 
 | 	    if {$z < -1 || ($z < 0 && $isarrow)} { | 
 | 		# Line currently goes left too much; | 
 | 		# insert pads in the previous row, then optimize it | 
 | 		set npad [expr {-1 - $z + $isarrow}] | 
 | 		set offs [incrange $offs $col $npad] | 
 | 		insert_pad $y0 $x0 $npad | 
 | 		if {$y0 > 0} { | 
 | 		    optimize_rows $y0 $x0 $row | 
 | 		} | 
 | 		set z [lindex $offs $col] | 
 | 		set x0 [expr {$col + $z}] | 
 | 		set z0 [lindex $rowoffsets $y0 $x0] | 
 | 	    } elseif {$z > 1 || ($z > 0 && $isarrow)} { | 
 | 		# Line currently goes right too much; | 
 | 		# insert pads in this line and adjust the next's rowoffsets | 
 | 		set npad [expr {$z - 1 + $isarrow}] | 
 | 		set y1 [expr {$row + 1}] | 
 | 		set offs2 [lindex $rowoffsets $y1] | 
 | 		set x1 -1 | 
 | 		foreach z $offs2 { | 
 | 		    incr x1 | 
 | 		    if {$z eq {} || $x1 + $z < $col} continue | 
 | 		    if {$x1 + $z > $col} { | 
 | 			incr npad | 
 | 		    } | 
 | 		    lset rowoffsets $y1 [incrange $offs2 $x1 $npad] | 
 | 		    break | 
 | 		} | 
 | 		set pad [ntimes $npad {}] | 
 | 		set idlist [eval linsert \$idlist $col $pad] | 
 | 		set tmp [eval linsert \$offs $col $pad] | 
 | 		incr col $npad | 
 | 		set offs [incrange $tmp $col [expr {-$npad}]] | 
 | 		set z [lindex $offs $col] | 
 | 		set haspad 1 | 
 | 	    } | 
 | 	    if {$z0 eq {} && !$isarrow} { | 
 | 		# this line links to its first child on row $row-2 | 
 | 		set rm2 [expr {$row - 2}] | 
 | 		set id [lindex $displayorder $rm2] | 
 | 		set xc [lsearch -exact [lindex $rowidlist $rm2] $id] | 
 | 		if {$xc >= 0} { | 
 | 		    set z0 [expr {$xc - $x0}] | 
 | 		} | 
 | 	    } | 
 | 	    # avoid lines jigging left then immediately right | 
 | 	    if {$z0 ne {} && $z < 0 && $z0 > 0} { | 
 | 		insert_pad $y0 $x0 1 | 
 | 		set offs [incrange $offs $col 1] | 
 | 		optimize_rows $y0 [expr {$x0 + 1}] $row | 
 | 	    } | 
 | 	} | 
 | 	if {!$haspad} { | 
 | 	    set o {} | 
 | 	    # Find the first column that doesn't have a line going right | 
 | 	    for {set col [llength $idlist]} {[incr col -1] >= 0} {} { | 
 | 		set o [lindex $offs $col] | 
 | 		if {$o eq {}} { | 
 | 		    # check if this is the link to the first child | 
 | 		    set id [lindex $idlist $col] | 
 | 		    set ranges [rowranges $id] | 
 | 		    if {$ranges ne {} && $row == [lindex $ranges 0]} { | 
 | 			# it is, work out offset to child | 
 | 			set y0 [expr {$row - 1}] | 
 | 			set id [lindex $displayorder $y0] | 
 | 			set x0 [lsearch -exact [lindex $rowidlist $y0] $id] | 
 | 			if {$x0 >= 0} { | 
 | 			    set o [expr {$x0 - $col}] | 
 | 			} | 
 | 		    } | 
 | 		} | 
 | 		if {$o eq {} || $o <= 0} break | 
 | 	    } | 
 | 	    # Insert a pad at that column as long as it has a line and | 
 | 	    # isn't the last column, and adjust the next row' offsets | 
 | 	    if {$o ne {} && [incr col] < [llength $idlist]} { | 
 | 		set y1 [expr {$row + 1}] | 
 | 		set offs2 [lindex $rowoffsets $y1] | 
 | 		set x1 -1 | 
 | 		foreach z $offs2 { | 
 | 		    incr x1 | 
 | 		    if {$z eq {} || $x1 + $z < $col} continue | 
 | 		    lset rowoffsets $y1 [incrange $offs2 $x1 1] | 
 | 		    break | 
 | 		} | 
 | 		set idlist [linsert $idlist $col {}] | 
 | 		set tmp [linsert $offs $col {}] | 
 | 		incr col | 
 | 		set offs [incrange $tmp $col -1] | 
 | 	    } | 
 | 	} | 
 | 	lset rowidlist $row $idlist | 
 | 	lset rowoffsets $row $offs | 
 | 	set col 0 | 
 |     } | 
 | } | 
 |  | 
 | proc xc {row col} { | 
 |     global canvx0 linespc | 
 |     return [expr {$canvx0 + $col * $linespc}] | 
 | } | 
 |  | 
 | proc yc {row} { | 
 |     global canvy0 linespc | 
 |     return [expr {$canvy0 + $row * $linespc}] | 
 | } | 
 |  | 
 | proc linewidth {id} { | 
 |     global thickerline lthickness | 
 |  | 
 |     set wid $lthickness | 
 |     if {[info exists thickerline] && $id eq $thickerline} { | 
 | 	set wid [expr {2 * $lthickness}] | 
 |     } | 
 |     return $wid | 
 | } | 
 |  | 
 | proc rowranges {id} { | 
 |     global phase idrowranges commitrow rowlaidout rowrangelist curview | 
 |  | 
 |     set ranges {} | 
 |     if {$phase eq {} || | 
 | 	([info exists commitrow($curview,$id)] | 
 | 	 && $commitrow($curview,$id) < $rowlaidout)} { | 
 | 	set ranges [lindex $rowrangelist $commitrow($curview,$id)] | 
 |     } elseif {[info exists idrowranges($id)]} { | 
 | 	set ranges $idrowranges($id) | 
 |     } | 
 |     set linenos {} | 
 |     foreach rid $ranges { | 
 | 	lappend linenos $commitrow($curview,$rid) | 
 |     } | 
 |     if {$linenos ne {}} { | 
 | 	lset linenos 0 [expr {[lindex $linenos 0] + 1}] | 
 |     } | 
 |     return $linenos | 
 | } | 
 |  | 
 | # work around tk8.4 refusal to draw arrows on diagonal segments | 
 | proc adjarrowhigh {coords} { | 
 |     global linespc | 
 |  | 
 |     set x0 [lindex $coords 0] | 
 |     set x1 [lindex $coords 2] | 
 |     if {$x0 != $x1} { | 
 | 	set y0 [lindex $coords 1] | 
 | 	set y1 [lindex $coords 3] | 
 | 	if {$y0 - $y1 <= 2 * $linespc && $x1 == [lindex $coords 4]} { | 
 | 	    # we have a nearby vertical segment, just trim off the diag bit | 
 | 	    set coords [lrange $coords 2 end] | 
 | 	} else { | 
 | 	    set slope [expr {($x0 - $x1) / ($y0 - $y1)}] | 
 | 	    set xi [expr {$x0 - $slope * $linespc / 2}] | 
 | 	    set yi [expr {$y0 - $linespc / 2}] | 
 | 	    set coords [lreplace $coords 0 1 $xi $y0 $xi $yi] | 
 | 	} | 
 |     } | 
 |     return $coords | 
 | } | 
 |  | 
 | proc drawlineseg {id row endrow arrowlow} { | 
 |     global rowidlist displayorder iddrawn linesegs | 
 |     global canv colormap linespc curview maxlinelen | 
 |  | 
 |     set cols [list [lsearch -exact [lindex $rowidlist $row] $id]] | 
 |     set le [expr {$row + 1}] | 
 |     set arrowhigh 1 | 
 |     while {1} { | 
 | 	set c [lsearch -exact [lindex $rowidlist $le] $id] | 
 | 	if {$c < 0} { | 
 | 	    incr le -1 | 
 | 	    break | 
 | 	} | 
 | 	lappend cols $c | 
 | 	set x [lindex $displayorder $le] | 
 | 	if {$x eq $id} { | 
 | 	    set arrowhigh 0 | 
 | 	    break | 
 | 	} | 
 | 	if {[info exists iddrawn($x)] || $le == $endrow} { | 
 | 	    set c [lsearch -exact [lindex $rowidlist [expr {$le+1}]] $id] | 
 | 	    if {$c >= 0} { | 
 | 		lappend cols $c | 
 | 		set arrowhigh 0 | 
 | 	    } | 
 | 	    break | 
 | 	} | 
 | 	incr le | 
 |     } | 
 |     if {$le <= $row} { | 
 | 	return $row | 
 |     } | 
 |  | 
 |     set lines {} | 
 |     set i 0 | 
 |     set joinhigh 0 | 
 |     if {[info exists linesegs($id)]} { | 
 | 	set lines $linesegs($id) | 
 | 	foreach li $lines { | 
 | 	    set r0 [lindex $li 0] | 
 | 	    if {$r0 > $row} { | 
 | 		if {$r0 == $le && [lindex $li 1] - $row <= $maxlinelen} { | 
 | 		    set joinhigh 1 | 
 | 		} | 
 | 		break | 
 | 	    } | 
 | 	    incr i | 
 | 	} | 
 |     } | 
 |     set joinlow 0 | 
 |     if {$i > 0} { | 
 | 	set li [lindex $lines [expr {$i-1}]] | 
 | 	set r1 [lindex $li 1] | 
 | 	if {$r1 == $row && $le - [lindex $li 0] <= $maxlinelen} { | 
 | 	    set joinlow 1 | 
 | 	} | 
 |     } | 
 |  | 
 |     set x [lindex $cols [expr {$le - $row}]] | 
 |     set xp [lindex $cols [expr {$le - 1 - $row}]] | 
 |     set dir [expr {$xp - $x}] | 
 |     if {$joinhigh} { | 
 | 	set ith [lindex $lines $i 2] | 
 | 	set coords [$canv coords $ith] | 
 | 	set ah [$canv itemcget $ith -arrow] | 
 | 	set arrowhigh [expr {$ah eq "first" || $ah eq "both"}] | 
 | 	set x2 [lindex $cols [expr {$le + 1 - $row}]] | 
 | 	if {$x2 ne {} && $x - $x2 == $dir} { | 
 | 	    set coords [lrange $coords 0 end-2] | 
 | 	} | 
 |     } else { | 
 | 	set coords [list [xc $le $x] [yc $le]] | 
 |     } | 
 |     if {$joinlow} { | 
 | 	set itl [lindex $lines [expr {$i-1}] 2] | 
 | 	set al [$canv itemcget $itl -arrow] | 
 | 	set arrowlow [expr {$al eq "last" || $al eq "both"}] | 
 |     } elseif {$arrowlow && | 
 | 	      [lsearch -exact [lindex $rowidlist [expr {$row-1}]] $id] >= 0} { | 
 | 	set arrowlow 0 | 
 |     } | 
 |     set arrow [lindex {none first last both} [expr {$arrowhigh + 2*$arrowlow}]] | 
 |     for {set y $le} {[incr y -1] > $row} {} { | 
 | 	set x $xp | 
 | 	set xp [lindex $cols [expr {$y - 1 - $row}]] | 
 | 	set ndir [expr {$xp - $x}] | 
 | 	if {$dir != $ndir || $xp < 0} { | 
 | 	    lappend coords [xc $y $x] [yc $y] | 
 | 	} | 
 | 	set dir $ndir | 
 |     } | 
 |     if {!$joinlow} { | 
 | 	if {$xp < 0} { | 
 | 	    # join parent line to first child | 
 | 	    set ch [lindex $displayorder $row] | 
 | 	    set xc [lsearch -exact [lindex $rowidlist $row] $ch] | 
 | 	    if {$xc < 0} { | 
 | 		puts "oops: drawlineseg: child $ch not on row $row" | 
 | 	    } else { | 
 | 		if {$xc < $x - 1} { | 
 | 		    lappend coords [xc $row [expr {$x-1}]] [yc $row] | 
 | 		} elseif {$xc > $x + 1} { | 
 | 		    lappend coords [xc $row [expr {$x+1}]] [yc $row] | 
 | 		} | 
 | 		set x $xc | 
 | 	    } | 
 | 	    lappend coords [xc $row $x] [yc $row] | 
 | 	} else { | 
 | 	    set xn [xc $row $xp] | 
 | 	    set yn [yc $row] | 
 | 	    # work around tk8.4 refusal to draw arrows on diagonal segments | 
 | 	    if {$arrowlow && $xn != [lindex $coords end-1]} { | 
 | 		if {[llength $coords] < 4 || | 
 | 		    [lindex $coords end-3] != [lindex $coords end-1] || | 
 | 		    [lindex $coords end] - $yn > 2 * $linespc} { | 
 | 		    set xn [xc $row [expr {$xp - 0.5 * $dir}]] | 
 | 		    set yo [yc [expr {$row + 0.5}]] | 
 | 		    lappend coords $xn $yo $xn $yn | 
 | 		} | 
 | 	    } else { | 
 | 		lappend coords $xn $yn | 
 | 	    } | 
 | 	} | 
 | 	if {!$joinhigh} { | 
 | 	    if {$arrowhigh} { | 
 | 		set coords [adjarrowhigh $coords] | 
 | 	    } | 
 | 	    assigncolor $id | 
 | 	    set t [$canv create line $coords -width [linewidth $id] \ | 
 | 		       -fill $colormap($id) -tags lines.$id -arrow $arrow] | 
 | 	    $canv lower $t | 
 | 	    bindline $t $id | 
 | 	    set lines [linsert $lines $i [list $row $le $t]] | 
 | 	} else { | 
 | 	    $canv coords $ith $coords | 
 | 	    if {$arrow ne $ah} { | 
 | 		$canv itemconf $ith -arrow $arrow | 
 | 	    } | 
 | 	    lset lines $i 0 $row | 
 | 	} | 
 |     } else { | 
 | 	set xo [lsearch -exact [lindex $rowidlist [expr {$row - 1}]] $id] | 
 | 	set ndir [expr {$xo - $xp}] | 
 | 	set clow [$canv coords $itl] | 
 | 	if {$dir == $ndir} { | 
 | 	    set clow [lrange $clow 2 end] | 
 | 	} | 
 | 	set coords [concat $coords $clow] | 
 | 	if {!$joinhigh} { | 
 | 	    lset lines [expr {$i-1}] 1 $le | 
 | 	    if {$arrowhigh} { | 
 | 		set coords [adjarrowhigh $coords] | 
 | 	    } | 
 | 	} else { | 
 | 	    # coalesce two pieces | 
 | 	    $canv delete $ith | 
 | 	    set b [lindex $lines [expr {$i-1}] 0] | 
 | 	    set e [lindex $lines $i 1] | 
 | 	    set lines [lreplace $lines [expr {$i-1}] $i [list $b $e $itl]] | 
 | 	} | 
 | 	$canv coords $itl $coords | 
 | 	if {$arrow ne $al} { | 
 | 	    $canv itemconf $itl -arrow $arrow | 
 | 	} | 
 |     } | 
 |  | 
 |     set linesegs($id) $lines | 
 |     return $le | 
 | } | 
 |  | 
 | proc drawparentlinks {id row} { | 
 |     global rowidlist canv colormap curview parentlist | 
 |     global idpos | 
 |  | 
 |     set rowids [lindex $rowidlist $row] | 
 |     set col [lsearch -exact $rowids $id] | 
 |     if {$col < 0} return | 
 |     set olds [lindex $parentlist $row] | 
 |     set row2 [expr {$row + 1}] | 
 |     set x [xc $row $col] | 
 |     set y [yc $row] | 
 |     set y2 [yc $row2] | 
 |     set ids [lindex $rowidlist $row2] | 
 |     # rmx = right-most X coord used | 
 |     set rmx 0 | 
 |     foreach p $olds { | 
 | 	set i [lsearch -exact $ids $p] | 
 | 	if {$i < 0} { | 
 | 	    puts "oops, parent $p of $id not in list" | 
 | 	    continue | 
 | 	} | 
 | 	set x2 [xc $row2 $i] | 
 | 	if {$x2 > $rmx} { | 
 | 	    set rmx $x2 | 
 | 	} | 
 | 	if {[lsearch -exact $rowids $p] < 0} { | 
 | 	    # drawlineseg will do this one for us | 
 | 	    continue | 
 | 	} | 
 | 	assigncolor $p | 
 | 	# should handle duplicated parents here... | 
 | 	set coords [list $x $y] | 
 | 	if {$i < $col - 1} { | 
 | 	    lappend coords [xc $row [expr {$i + 1}]] $y | 
 | 	} elseif {$i > $col + 1} { | 
 | 	    lappend coords [xc $row [expr {$i - 1}]] $y | 
 | 	} | 
 | 	lappend coords $x2 $y2 | 
 | 	set t [$canv create line $coords -width [linewidth $p] \ | 
 | 		   -fill $colormap($p) -tags lines.$p] | 
 | 	$canv lower $t | 
 | 	bindline $t $p | 
 |     } | 
 |     if {$rmx > [lindex $idpos($id) 1]} { | 
 | 	lset idpos($id) 1 $rmx | 
 | 	redrawtags $id | 
 |     } | 
 | } | 
 |  | 
 | proc drawlines {id} { | 
 |     global canv | 
 |  | 
 |     $canv itemconf lines.$id -width [linewidth $id] | 
 | } | 
 |  | 
 | proc drawcmittext {id row col} { | 
 |     global linespc canv canv2 canv3 canvy0 fgcolor curview | 
 |     global commitlisted commitinfo rowidlist parentlist | 
 |     global rowtextx idpos idtags idheads idotherrefs | 
 |     global linehtag linentag linedtag | 
 |     global mainfont canvxmax boldrows boldnamerows fgcolor nullid nullid2 | 
 |  | 
 |     # listed is 0 for boundary, 1 for normal, 2 for left, 3 for right | 
 |     set listed [lindex $commitlisted $row] | 
 |     if {$id eq $nullid} { | 
 | 	set ofill red | 
 |     } elseif {$id eq $nullid2} { | 
 | 	set ofill green | 
 |     } else { | 
 | 	set ofill [expr {$listed != 0? "blue": "white"}] | 
 |     } | 
 |     set x [xc $row $col] | 
 |     set y [yc $row] | 
 |     set orad [expr {$linespc / 3}] | 
 |     if {$listed <= 1} { | 
 | 	set t [$canv create oval [expr {$x - $orad}] [expr {$y - $orad}] \ | 
 | 		   [expr {$x + $orad - 1}] [expr {$y + $orad - 1}] \ | 
 | 		   -fill $ofill -outline $fgcolor -width 1 -tags circle] | 
 |     } elseif {$listed == 2} { | 
 | 	# triangle pointing left for left-side commits | 
 | 	set t [$canv create polygon \ | 
 | 		   [expr {$x - $orad}] $y \ | 
 | 		   [expr {$x + $orad - 1}] [expr {$y - $orad}] \ | 
 | 		   [expr {$x + $orad - 1}] [expr {$y + $orad - 1}] \ | 
 | 		   -fill $ofill -outline $fgcolor -width 1 -tags circle] | 
 |     } else { | 
 | 	# triangle pointing right for right-side commits | 
 | 	set t [$canv create polygon \ | 
 | 		   [expr {$x + $orad - 1}] $y \ | 
 | 		   [expr {$x - $orad}] [expr {$y - $orad}] \ | 
 | 		   [expr {$x - $orad}] [expr {$y + $orad - 1}] \ | 
 | 		   -fill $ofill -outline $fgcolor -width 1 -tags circle] | 
 |     } | 
 |     $canv raise $t | 
 |     $canv bind $t <1> {selcanvline {} %x %y} | 
 |     set rmx [llength [lindex $rowidlist $row]] | 
 |     set olds [lindex $parentlist $row] | 
 |     if {$olds ne {}} { | 
 | 	set nextids [lindex $rowidlist [expr {$row + 1}]] | 
 | 	foreach p $olds { | 
 | 	    set i [lsearch -exact $nextids $p] | 
 | 	    if {$i > $rmx} { | 
 | 		set rmx $i | 
 | 	    } | 
 | 	} | 
 |     } | 
 |     set xt [xc $row $rmx] | 
 |     set rowtextx($row) $xt | 
 |     set idpos($id) [list $x $xt $y] | 
 |     if {[info exists idtags($id)] || [info exists idheads($id)] | 
 | 	|| [info exists idotherrefs($id)]} { | 
 | 	set xt [drawtags $id $x $xt $y] | 
 |     } | 
 |     set headline [lindex $commitinfo($id) 0] | 
 |     set name [lindex $commitinfo($id) 1] | 
 |     set date [lindex $commitinfo($id) 2] | 
 |     set date [formatdate $date] | 
 |     set font $mainfont | 
 |     set nfont $mainfont | 
 |     set isbold [ishighlighted $row] | 
 |     if {$isbold > 0} { | 
 | 	lappend boldrows $row | 
 | 	lappend font bold | 
 | 	if {$isbold > 1} { | 
 | 	    lappend boldnamerows $row | 
 | 	    lappend nfont bold | 
 | 	} | 
 |     } | 
 |     set linehtag($row) [$canv create text $xt $y -anchor w -fill $fgcolor \ | 
 | 			    -text $headline -font $font -tags text] | 
 |     $canv bind $linehtag($row) <Button-3> "rowmenu %X %Y $id" | 
 |     set linentag($row) [$canv2 create text 3 $y -anchor w -fill $fgcolor \ | 
 | 			    -text $name -font $nfont -tags text] | 
 |     set linedtag($row) [$canv3 create text 3 $y -anchor w -fill $fgcolor \ | 
 | 			    -text $date -font $mainfont -tags text] | 
 |     set xr [expr {$xt + [font measure $mainfont $headline]}] | 
 |     if {$xr > $canvxmax} { | 
 | 	set canvxmax $xr | 
 | 	setcanvscroll | 
 |     } | 
 | } | 
 |  | 
 | proc drawcmitrow {row} { | 
 |     global displayorder rowidlist | 
 |     global iddrawn markingmatches | 
 |     global commitinfo parentlist numcommits | 
 |     global filehighlight fhighlights findstring nhighlights | 
 |     global hlview vhighlights | 
 |     global highlight_related rhighlights | 
 |  | 
 |     if {$row >= $numcommits} return | 
 |  | 
 |     set id [lindex $displayorder $row] | 
 |     if {[info exists hlview] && ![info exists vhighlights($row)]} { | 
 | 	askvhighlight $row $id | 
 |     } | 
 |     if {[info exists filehighlight] && ![info exists fhighlights($row)]} { | 
 | 	askfilehighlight $row $id | 
 |     } | 
 |     if {$findstring ne {} && ![info exists nhighlights($row)]} { | 
 | 	askfindhighlight $row $id | 
 |     } | 
 |     if {$highlight_related ne "None" && ![info exists rhighlights($row)]} { | 
 | 	askrelhighlight $row $id | 
 |     } | 
 |     if {![info exists iddrawn($id)]} { | 
 | 	set col [lsearch -exact [lindex $rowidlist $row] $id] | 
 | 	if {$col < 0} { | 
 | 	    puts "oops, row $row id $id not in list" | 
 | 	    return | 
 | 	} | 
 | 	if {![info exists commitinfo($id)]} { | 
 | 	    getcommit $id | 
 | 	} | 
 | 	assigncolor $id | 
 | 	drawcmittext $id $row $col | 
 | 	set iddrawn($id) 1 | 
 |     } | 
 |     if {$markingmatches} { | 
 | 	markrowmatches $row $id | 
 |     } | 
 | } | 
 |  | 
 | proc drawcommits {row {endrow {}}} { | 
 |     global numcommits iddrawn displayorder curview | 
 |     global parentlist rowidlist | 
 |  | 
 |     if {$row < 0} { | 
 | 	set row 0 | 
 |     } | 
 |     if {$endrow eq {}} { | 
 | 	set endrow $row | 
 |     } | 
 |     if {$endrow >= $numcommits} { | 
 | 	set endrow [expr {$numcommits - 1}] | 
 |     } | 
 |  | 
 |     # make the lines join to already-drawn rows either side | 
 |     set r [expr {$row - 1}] | 
 |     if {$r < 0 || ![info exists iddrawn([lindex $displayorder $r])]} { | 
 | 	set r $row | 
 |     } | 
 |     set er [expr {$endrow + 1}] | 
 |     if {$er >= $numcommits || | 
 | 	![info exists iddrawn([lindex $displayorder $er])]} { | 
 | 	set er $endrow | 
 |     } | 
 |     for {} {$r <= $er} {incr r} { | 
 | 	set id [lindex $displayorder $r] | 
 | 	set wasdrawn [info exists iddrawn($id)] | 
 | 	drawcmitrow $r | 
 | 	if {$r == $er} break | 
 | 	set nextid [lindex $displayorder [expr {$r + 1}]] | 
 | 	if {$wasdrawn && [info exists iddrawn($nextid)]} { | 
 | 	    catch {unset prevlines} | 
 | 	    continue | 
 | 	} | 
 | 	drawparentlinks $id $r | 
 |  | 
 | 	if {[info exists lineends($r)]} { | 
 | 	    foreach lid $lineends($r) { | 
 | 		unset prevlines($lid) | 
 | 	    } | 
 | 	} | 
 | 	set rowids [lindex $rowidlist $r] | 
 | 	foreach lid $rowids { | 
 | 	    if {$lid eq {}} continue | 
 | 	    if {$lid eq $id} { | 
 | 		# see if this is the first child of any of its parents | 
 | 		foreach p [lindex $parentlist $r] { | 
 | 		    if {[lsearch -exact $rowids $p] < 0} { | 
 | 			# make this line extend up to the child | 
 | 			set le [drawlineseg $p $r $er 0] | 
 | 			lappend lineends($le) $p | 
 | 			set prevlines($p) 1 | 
 | 		    } | 
 | 		} | 
 | 	    } elseif {![info exists prevlines($lid)]} { | 
 | 		set le [drawlineseg $lid $r $er 1] | 
 | 		lappend lineends($le) $lid | 
 | 		set prevlines($lid) 1 | 
 | 	    } | 
 | 	} | 
 |     } | 
 | } | 
 |  | 
 | proc drawfrac {f0 f1} { | 
 |     global canv linespc | 
 |  | 
 |     set ymax [lindex [$canv cget -scrollregion] 3] | 
 |     if {$ymax eq {} || $ymax == 0} return | 
 |     set y0 [expr {int($f0 * $ymax)}] | 
 |     set row [expr {int(($y0 - 3) / $linespc) - 1}] | 
 |     set y1 [expr {int($f1 * $ymax)}] | 
 |     set endrow [expr {int(($y1 - 3) / $linespc) + 1}] | 
 |     drawcommits $row $endrow | 
 | } | 
 |  | 
 | proc drawvisible {} { | 
 |     global canv | 
 |     eval drawfrac [$canv yview] | 
 | } | 
 |  | 
 | proc clear_display {} { | 
 |     global iddrawn linesegs | 
 |     global vhighlights fhighlights nhighlights rhighlights | 
 |  | 
 |     allcanvs delete all | 
 |     catch {unset iddrawn} | 
 |     catch {unset linesegs} | 
 |     catch {unset vhighlights} | 
 |     catch {unset fhighlights} | 
 |     catch {unset nhighlights} | 
 |     catch {unset rhighlights} | 
 | } | 
 |  | 
 | proc findcrossings {id} { | 
 |     global rowidlist parentlist numcommits rowoffsets displayorder | 
 |  | 
 |     set cross {} | 
 |     set ccross {} | 
 |     foreach {s e} [rowranges $id] { | 
 | 	if {$e >= $numcommits} { | 
 | 	    set e [expr {$numcommits - 1}] | 
 | 	} | 
 | 	if {$e <= $s} continue | 
 | 	set x [lsearch -exact [lindex $rowidlist $e] $id] | 
 | 	if {$x < 0} { | 
 | 	    puts "findcrossings: oops, no [shortids $id] in row $e" | 
 | 	    continue | 
 | 	} | 
 | 	for {set row $e} {[incr row -1] >= $s} {} { | 
 | 	    set olds [lindex $parentlist $row] | 
 | 	    set kid [lindex $displayorder $row] | 
 | 	    set kidx [lsearch -exact [lindex $rowidlist $row] $kid] | 
 | 	    if {$kidx < 0} continue | 
 | 	    set nextrow [lindex $rowidlist [expr {$row + 1}]] | 
 | 	    foreach p $olds { | 
 | 		set px [lsearch -exact $nextrow $p] | 
 | 		if {$px < 0} continue | 
 | 		if {($kidx < $x && $x < $px) || ($px < $x && $x < $kidx)} { | 
 | 		    if {[lsearch -exact $ccross $p] >= 0} continue | 
 | 		    if {$x == $px + ($kidx < $px? -1: 1)} { | 
 | 			lappend ccross $p | 
 | 		    } elseif {[lsearch -exact $cross $p] < 0} { | 
 | 			lappend cross $p | 
 | 		    } | 
 | 		} | 
 | 	    } | 
 | 	    set inc [lindex $rowoffsets $row $x] | 
 | 	    if {$inc eq {}} break | 
 | 	    incr x $inc | 
 | 	} | 
 |     } | 
 |     return [concat $ccross {{}} $cross] | 
 | } | 
 |  | 
 | proc assigncolor {id} { | 
 |     global colormap colors nextcolor | 
 |     global commitrow parentlist children children curview | 
 |  | 
 |     if {[info exists colormap($id)]} return | 
 |     set ncolors [llength $colors] | 
 |     if {[info exists children($curview,$id)]} { | 
 | 	set kids $children($curview,$id) | 
 |     } else { | 
 | 	set kids {} | 
 |     } | 
 |     if {[llength $kids] == 1} { | 
 | 	set child [lindex $kids 0] | 
 | 	if {[info exists colormap($child)] | 
 | 	    && [llength [lindex $parentlist $commitrow($curview,$child)]] == 1} { | 
 | 	    set colormap($id) $colormap($child) | 
 | 	    return | 
 | 	} | 
 |     } | 
 |     set badcolors {} | 
 |     set origbad {} | 
 |     foreach x [findcrossings $id] { | 
 | 	if {$x eq {}} { | 
 | 	    # delimiter between corner crossings and other crossings | 
 | 	    if {[llength $badcolors] >= $ncolors - 1} break | 
 | 	    set origbad $badcolors | 
 | 	} | 
 | 	if {[info exists colormap($x)] | 
 | 	    && [lsearch -exact $badcolors $colormap($x)] < 0} { | 
 | 	    lappend badcolors $colormap($x) | 
 | 	} | 
 |     } | 
 |     if {[llength $badcolors] >= $ncolors} { | 
 | 	set badcolors $origbad | 
 |     } | 
 |     set origbad $badcolors | 
 |     if {[llength $badcolors] < $ncolors - 1} { | 
 | 	foreach child $kids { | 
 | 	    if {[info exists colormap($child)] | 
 | 		&& [lsearch -exact $badcolors $colormap($child)] < 0} { | 
 | 		lappend badcolors $colormap($child) | 
 | 	    } | 
 | 	    foreach p [lindex $parentlist $commitrow($curview,$child)] { | 
 | 		if {[info exists colormap($p)] | 
 | 		    && [lsearch -exact $badcolors $colormap($p)] < 0} { | 
 | 		    lappend badcolors $colormap($p) | 
 | 		} | 
 | 	    } | 
 | 	} | 
 | 	if {[llength $badcolors] >= $ncolors} { | 
 | 	    set badcolors $origbad | 
 | 	} | 
 |     } | 
 |     for {set i 0} {$i <= $ncolors} {incr i} { | 
 | 	set c [lindex $colors $nextcolor] | 
 | 	if {[incr nextcolor] >= $ncolors} { | 
 | 	    set nextcolor 0 | 
 | 	} | 
 | 	if {[lsearch -exact $badcolors $c]} break | 
 |     } | 
 |     set colormap($id) $c | 
 | } | 
 |  | 
 | proc bindline {t id} { | 
 |     global canv | 
 |  | 
 |     $canv bind $t <Enter> "lineenter %x %y $id" | 
 |     $canv bind $t <Motion> "linemotion %x %y $id" | 
 |     $canv bind $t <Leave> "lineleave $id" | 
 |     $canv bind $t <Button-1> "lineclick %x %y $id 1" | 
 | } | 
 |  | 
 | proc drawtags {id x xt y1} { | 
 |     global idtags idheads idotherrefs mainhead | 
 |     global linespc lthickness | 
 |     global canv mainfont commitrow rowtextx curview fgcolor bgcolor | 
 |  | 
 |     set marks {} | 
 |     set ntags 0 | 
 |     set nheads 0 | 
 |     if {[info exists idtags($id)]} { | 
 | 	set marks $idtags($id) | 
 | 	set ntags [llength $marks] | 
 |     } | 
 |     if {[info exists idheads($id)]} { | 
 | 	set marks [concat $marks $idheads($id)] | 
 | 	set nheads [llength $idheads($id)] | 
 |     } | 
 |     if {[info exists idotherrefs($id)]} { | 
 | 	set marks [concat $marks $idotherrefs($id)] | 
 |     } | 
 |     if {$marks eq {}} { | 
 | 	return $xt | 
 |     } | 
 |  | 
 |     set delta [expr {int(0.5 * ($linespc - $lthickness))}] | 
 |     set yt [expr {$y1 - 0.5 * $linespc}] | 
 |     set yb [expr {$yt + $linespc - 1}] | 
 |     set xvals {} | 
 |     set wvals {} | 
 |     set i -1 | 
 |     foreach tag $marks { | 
 | 	incr i | 
 | 	if {$i >= $ntags && $i < $ntags + $nheads && $tag eq $mainhead} { | 
 | 	    set wid [font measure [concat $mainfont bold] $tag] | 
 | 	} else { | 
 | 	    set wid [font measure $mainfont $tag] | 
 | 	} | 
 | 	lappend xvals $xt | 
 | 	lappend wvals $wid | 
 | 	set xt [expr {$xt + $delta + $wid + $lthickness + $linespc}] | 
 |     } | 
 |     set t [$canv create line $x $y1 [lindex $xvals end] $y1 \ | 
 | 	       -width $lthickness -fill black -tags tag.$id] | 
 |     $canv lower $t | 
 |     foreach tag $marks x $xvals wid $wvals { | 
 | 	set xl [expr {$x + $delta}] | 
 | 	set xr [expr {$x + $delta + $wid + $lthickness}] | 
 | 	set font $mainfont | 
 | 	if {[incr ntags -1] >= 0} { | 
 | 	    # draw a tag | 
 | 	    set t [$canv create polygon $x [expr {$yt + $delta}] $xl $yt \ | 
 | 		       $xr $yt $xr $yb $xl $yb $x [expr {$yb - $delta}] \ | 
 | 		       -width 1 -outline black -fill yellow -tags tag.$id] | 
 | 	    $canv bind $t <1> [list showtag $tag 1] | 
 | 	    set rowtextx($commitrow($curview,$id)) [expr {$xr + $linespc}] | 
 | 	} else { | 
 | 	    # draw a head or other ref | 
 | 	    if {[incr nheads -1] >= 0} { | 
 | 		set col green | 
 | 		if {$tag eq $mainhead} { | 
 | 		    lappend font bold | 
 | 		} | 
 | 	    } else { | 
 | 		set col "#ddddff" | 
 | 	    } | 
 | 	    set xl [expr {$xl - $delta/2}] | 
 | 	    $canv create polygon $x $yt $xr $yt $xr $yb $x $yb \ | 
 | 		-width 1 -outline black -fill $col -tags tag.$id | 
 | 	    if {[regexp {^(remotes/.*/|remotes/)} $tag match remoteprefix]} { | 
 | 	        set rwid [font measure $mainfont $remoteprefix] | 
 | 		set xi [expr {$x + 1}] | 
 | 		set yti [expr {$yt + 1}] | 
 | 		set xri [expr {$x + $rwid}] | 
 | 		$canv create polygon $xi $yti $xri $yti $xri $yb $xi $yb \ | 
 | 			-width 0 -fill "#ffddaa" -tags tag.$id | 
 | 	    } | 
 | 	} | 
 | 	set t [$canv create text $xl $y1 -anchor w -text $tag -fill $fgcolor \ | 
 | 		   -font $font -tags [list tag.$id text]] | 
 | 	if {$ntags >= 0} { | 
 | 	    $canv bind $t <1> [list showtag $tag 1] | 
 | 	} elseif {$nheads >= 0} { | 
 | 	    $canv bind $t <Button-3> [list headmenu %X %Y $id $tag] | 
 | 	} | 
 |     } | 
 |     return $xt | 
 | } | 
 |  | 
 | proc xcoord {i level ln} { | 
 |     global canvx0 xspc1 xspc2 | 
 |  | 
 |     set x [expr {$canvx0 + $i * $xspc1($ln)}] | 
 |     if {$i > 0 && $i == $level} { | 
 | 	set x [expr {$x + 0.5 * ($xspc2 - $xspc1($ln))}] | 
 |     } elseif {$i > $level} { | 
 | 	set x [expr {$x + $xspc2 - $xspc1($ln)}] | 
 |     } | 
 |     return $x | 
 | } | 
 |  | 
 | proc show_status {msg} { | 
 |     global canv mainfont fgcolor | 
 |  | 
 |     clear_display | 
 |     $canv create text 3 3 -anchor nw -text $msg -font $mainfont \ | 
 | 	-tags text -fill $fgcolor | 
 | } | 
 |  | 
 | # Insert a new commit as the child of the commit on row $row. | 
 | # The new commit will be displayed on row $row and the commits | 
 | # on that row and below will move down one row. | 
 | proc insertrow {row newcmit} { | 
 |     global displayorder parentlist commitlisted children | 
 |     global commitrow curview rowidlist rowoffsets numcommits | 
 |     global rowrangelist rowlaidout rowoptim numcommits | 
 |     global selectedline rowchk commitidx | 
 |  | 
 |     if {$row >= $numcommits} { | 
 | 	puts "oops, inserting new row $row but only have $numcommits rows" | 
 | 	return | 
 |     } | 
 |     set p [lindex $displayorder $row] | 
 |     set displayorder [linsert $displayorder $row $newcmit] | 
 |     set parentlist [linsert $parentlist $row $p] | 
 |     set kids $children($curview,$p) | 
 |     lappend kids $newcmit | 
 |     set children($curview,$p) $kids | 
 |     set children($curview,$newcmit) {} | 
 |     set commitlisted [linsert $commitlisted $row 1] | 
 |     set l [llength $displayorder] | 
 |     for {set r $row} {$r < $l} {incr r} { | 
 | 	set id [lindex $displayorder $r] | 
 | 	set commitrow($curview,$id) $r | 
 |     } | 
 |     incr commitidx($curview) | 
 |  | 
 |     set idlist [lindex $rowidlist $row] | 
 |     set offs [lindex $rowoffsets $row] | 
 |     set newoffs {} | 
 |     foreach x $idlist { | 
 | 	if {$x eq {} || ($x eq $p && [llength $kids] == 1)} { | 
 | 	    lappend newoffs {} | 
 | 	} else { | 
 | 	    lappend newoffs 0 | 
 | 	} | 
 |     } | 
 |     if {[llength $kids] == 1} { | 
 | 	set col [lsearch -exact $idlist $p] | 
 | 	lset idlist $col $newcmit | 
 |     } else { | 
 | 	set col [llength $idlist] | 
 | 	lappend idlist $newcmit | 
 | 	lappend offs {} | 
 | 	lset rowoffsets $row $offs | 
 |     } | 
 |     set rowidlist [linsert $rowidlist $row $idlist] | 
 |     set rowoffsets [linsert $rowoffsets [expr {$row+1}] $newoffs] | 
 |  | 
 |     set rowrangelist [linsert $rowrangelist $row {}] | 
 |     if {[llength $kids] > 1} { | 
 | 	set rp1 [expr {$row + 1}] | 
 | 	set ranges [lindex $rowrangelist $rp1] | 
 | 	if {$ranges eq {}} { | 
 | 	    set ranges [list $newcmit $p] | 
 | 	} elseif {[lindex $ranges end-1] eq $p} { | 
 | 	    lset ranges end-1 $newcmit | 
 | 	} | 
 | 	lset rowrangelist $rp1 $ranges | 
 |     } | 
 |  | 
 |     catch {unset rowchk} | 
 |  | 
 |     incr rowlaidout | 
 |     incr rowoptim | 
 |     incr numcommits | 
 |  | 
 |     if {[info exists selectedline] && $selectedline >= $row} { | 
 | 	incr selectedline | 
 |     } | 
 |     redisplay | 
 | } | 
 |  | 
 | # Remove a commit that was inserted with insertrow on row $row. | 
 | proc removerow {row} { | 
 |     global displayorder parentlist commitlisted children | 
 |     global commitrow curview rowidlist rowoffsets numcommits | 
 |     global rowrangelist idrowranges rowlaidout rowoptim numcommits | 
 |     global linesegends selectedline rowchk commitidx | 
 |  | 
 |     if {$row >= $numcommits} { | 
 | 	puts "oops, removing row $row but only have $numcommits rows" | 
 | 	return | 
 |     } | 
 |     set rp1 [expr {$row + 1}] | 
 |     set id [lindex $displayorder $row] | 
 |     set p [lindex $parentlist $row] | 
 |     set displayorder [lreplace $displayorder $row $row] | 
 |     set parentlist [lreplace $parentlist $row $row] | 
 |     set commitlisted [lreplace $commitlisted $row $row] | 
 |     set kids $children($curview,$p) | 
 |     set i [lsearch -exact $kids $id] | 
 |     if {$i >= 0} { | 
 | 	set kids [lreplace $kids $i $i] | 
 | 	set children($curview,$p) $kids | 
 |     } | 
 |     set l [llength $displayorder] | 
 |     for {set r $row} {$r < $l} {incr r} { | 
 | 	set id [lindex $displayorder $r] | 
 | 	set commitrow($curview,$id) $r | 
 |     } | 
 |     incr commitidx($curview) -1 | 
 |  | 
 |     set rowidlist [lreplace $rowidlist $row $row] | 
 |     set rowoffsets [lreplace $rowoffsets $rp1 $rp1] | 
 |     if {$kids ne {}} { | 
 | 	set offs [lindex $rowoffsets $row] | 
 | 	set offs [lreplace $offs end end] | 
 | 	lset rowoffsets $row $offs | 
 |     } | 
 |  | 
 |     set rowrangelist [lreplace $rowrangelist $row $row] | 
 |     if {[llength $kids] > 0} { | 
 | 	set ranges [lindex $rowrangelist $row] | 
 | 	if {[lindex $ranges end-1] eq $id} { | 
 | 	    set ranges [lreplace $ranges end-1 end] | 
 | 	    lset rowrangelist $row $ranges | 
 | 	} | 
 |     } | 
 |  | 
 |     catch {unset rowchk} | 
 |  | 
 |     incr rowlaidout -1 | 
 |     incr rowoptim -1 | 
 |     incr numcommits -1 | 
 |  | 
 |     if {[info exists selectedline] && $selectedline > $row} { | 
 | 	incr selectedline -1 | 
 |     } | 
 |     redisplay | 
 | } | 
 |  | 
 | # Don't change the text pane cursor if it is currently the hand cursor, | 
 | # showing that we are over a sha1 ID link. | 
 | proc settextcursor {c} { | 
 |     global ctext curtextcursor | 
 |  | 
 |     if {[$ctext cget -cursor] == $curtextcursor} { | 
 | 	$ctext config -cursor $c | 
 |     } | 
 |     set curtextcursor $c | 
 | } | 
 |  | 
 | proc nowbusy {what} { | 
 |     global isbusy | 
 |  | 
 |     if {[array names isbusy] eq {}} { | 
 | 	. config -cursor watch | 
 | 	settextcursor watch | 
 |     } | 
 |     set isbusy($what) 1 | 
 | } | 
 |  | 
 | proc notbusy {what} { | 
 |     global isbusy maincursor textcursor | 
 |  | 
 |     catch {unset isbusy($what)} | 
 |     if {[array names isbusy] eq {}} { | 
 | 	. config -cursor $maincursor | 
 | 	settextcursor $textcursor | 
 |     } | 
 | } | 
 |  | 
 | proc findmatches {f} { | 
 |     global findtype findstring | 
 |     if {$findtype == "Regexp"} { | 
 | 	set matches [regexp -indices -all -inline $findstring $f] | 
 |     } else { | 
 | 	set fs $findstring | 
 | 	if {$findtype == "IgnCase"} { | 
 | 	    set f [string tolower $f] | 
 | 	    set fs [string tolower $fs] | 
 | 	} | 
 | 	set matches {} | 
 | 	set i 0 | 
 | 	set l [string length $fs] | 
 | 	while {[set j [string first $fs $f $i]] >= 0} { | 
 | 	    lappend matches [list $j [expr {$j+$l-1}]] | 
 | 	    set i [expr {$j + $l}] | 
 | 	} | 
 |     } | 
 |     return $matches | 
 | } | 
 |  | 
 | proc dofind {{rev 0}} { | 
 |     global findstring findstartline findcurline selectedline numcommits | 
 |  | 
 |     unmarkmatches | 
 |     cancel_next_highlight | 
 |     focus . | 
 |     if {$findstring eq {} || $numcommits == 0} return | 
 |     if {![info exists selectedline]} { | 
 | 	set findstartline [lindex [visiblerows] $rev] | 
 |     } else { | 
 | 	set findstartline $selectedline | 
 |     } | 
 |     set findcurline $findstartline | 
 |     nowbusy finding | 
 |     if {!$rev} { | 
 | 	run findmore | 
 |     } else { | 
 | 	if {$findcurline == 0} { | 
 | 	    set findcurline $numcommits | 
 | 	} | 
 | 	incr findcurline -1 | 
 | 	run findmorerev | 
 |     } | 
 | } | 
 |  | 
 | proc findnext {restart} { | 
 |     global findcurline | 
 |     if {![info exists findcurline]} { | 
 | 	if {$restart} { | 
 | 	    dofind | 
 | 	} else { | 
 | 	    bell | 
 | 	} | 
 |     } else { | 
 | 	run findmore | 
 | 	nowbusy finding | 
 |     } | 
 | } | 
 |  | 
 | proc findprev {} { | 
 |     global findcurline | 
 |     if {![info exists findcurline]} { | 
 | 	dofind 1 | 
 |     } else { | 
 | 	run findmorerev | 
 | 	nowbusy finding | 
 |     } | 
 | } | 
 |  | 
 | proc findmore {} { | 
 |     global commitdata commitinfo numcommits findstring findpattern findloc | 
 |     global findstartline findcurline displayorder | 
 |  | 
 |     set fldtypes {Headline Author Date Committer CDate Comments} | 
 |     set l [expr {$findcurline + 1}] | 
 |     if {$l >= $numcommits} { | 
 | 	set l 0 | 
 |     } | 
 |     if {$l <= $findstartline} { | 
 | 	set lim [expr {$findstartline + 1}] | 
 |     } else { | 
 | 	set lim $numcommits | 
 |     } | 
 |     if {$lim - $l > 500} { | 
 | 	set lim [expr {$l + 500}] | 
 |     } | 
 |     set last 0 | 
 |     for {} {$l < $lim} {incr l} { | 
 | 	set id [lindex $displayorder $l] | 
 | 	# shouldn't happen unless git log doesn't give all the commits... | 
 | 	if {![info exists commitdata($id)]} continue | 
 | 	if {![doesmatch $commitdata($id)]} continue | 
 | 	if {![info exists commitinfo($id)]} { | 
 | 	    getcommit $id | 
 | 	} | 
 | 	set info $commitinfo($id) | 
 | 	foreach f $info ty $fldtypes { | 
 | 	    if {($findloc eq "All fields" || $findloc eq $ty) && | 
 | 		[doesmatch $f]} { | 
 | 		findselectline $l | 
 | 		notbusy finding | 
 | 		return 0 | 
 | 	    } | 
 | 	} | 
 |     } | 
 |     if {$l == $findstartline + 1} { | 
 | 	bell | 
 | 	unset findcurline | 
 | 	notbusy finding | 
 | 	return 0 | 
 |     } | 
 |     set findcurline [expr {$l - 1}] | 
 |     return 1 | 
 | } | 
 |  | 
 | proc findmorerev {} { | 
 |     global commitdata commitinfo numcommits findstring findpattern findloc | 
 |     global findstartline findcurline displayorder | 
 |  | 
 |     set fldtypes {Headline Author Date Committer CDate Comments} | 
 |     set l $findcurline | 
 |     if {$l == 0} { | 
 | 	set l $numcommits | 
 |     } | 
 |     incr l -1 | 
 |     if {$l >= $findstartline} { | 
 | 	set lim [expr {$findstartline - 1}] | 
 |     } else { | 
 | 	set lim -1 | 
 |     } | 
 |     if {$l - $lim > 500} { | 
 | 	set lim [expr {$l - 500}] | 
 |     } | 
 |     set last 0 | 
 |     for {} {$l > $lim} {incr l -1} { | 
 | 	set id [lindex $displayorder $l] | 
 | 	if {![doesmatch $commitdata($id)]} continue | 
 | 	if {![info exists commitinfo($id)]} { | 
 | 	    getcommit $id | 
 | 	} | 
 | 	set info $commitinfo($id) | 
 | 	foreach f $info ty $fldtypes { | 
 | 	    if {($findloc eq "All fields" || $findloc eq $ty) && | 
 | 		[doesmatch $f]} { | 
 | 		findselectline $l | 
 | 		notbusy finding | 
 | 		return 0 | 
 | 	    } | 
 | 	} | 
 |     } | 
 |     if {$l == -1} { | 
 | 	bell | 
 | 	unset findcurline | 
 | 	notbusy finding | 
 | 	return 0 | 
 |     } | 
 |     set findcurline [expr {$l + 1}] | 
 |     return 1 | 
 | } | 
 |  | 
 | proc findselectline {l} { | 
 |     global findloc commentend ctext findcurline markingmatches | 
 |  | 
 |     set markingmatches 1 | 
 |     set findcurline $l | 
 |     selectline $l 1 | 
 |     if {$findloc == "All fields" || $findloc == "Comments"} { | 
 | 	# highlight the matches in the comments | 
 | 	set f [$ctext get 1.0 $commentend] | 
 | 	set matches [findmatches $f] | 
 | 	foreach match $matches { | 
 | 	    set start [lindex $match 0] | 
 | 	    set end [expr {[lindex $match 1] + 1}] | 
 | 	    $ctext tag add found "1.0 + $start c" "1.0 + $end c" | 
 | 	} | 
 |     } | 
 |     drawvisible | 
 | } | 
 |  | 
 | # mark the bits of a headline or author that match a find string | 
 | proc markmatches {canv l str tag matches font row} { | 
 |     global selectedline | 
 |  | 
 |     set bbox [$canv bbox $tag] | 
 |     set x0 [lindex $bbox 0] | 
 |     set y0 [lindex $bbox 1] | 
 |     set y1 [lindex $bbox 3] | 
 |     foreach match $matches { | 
 | 	set start [lindex $match 0] | 
 | 	set end [lindex $match 1] | 
 | 	if {$start > $end} continue | 
 | 	set xoff [font measure $font [string range $str 0 [expr {$start-1}]]] | 
 | 	set xlen [font measure $font [string range $str 0 [expr {$end}]]] | 
 | 	set t [$canv create rect [expr {$x0+$xoff}] $y0 \ | 
 | 		   [expr {$x0+$xlen+2}] $y1 \ | 
 | 		   -outline {} -tags [list match$l matches] -fill yellow] | 
 | 	$canv lower $t | 
 | 	if {[info exists selectedline] && $row == $selectedline} { | 
 | 	    $canv raise $t secsel | 
 | 	} | 
 |     } | 
 | } | 
 |  | 
 | proc unmarkmatches {} { | 
 |     global findids markingmatches findcurline | 
 |  | 
 |     allcanvs delete matches | 
 |     catch {unset findids} | 
 |     set markingmatches 0 | 
 |     catch {unset findcurline} | 
 | } | 
 |  | 
 | proc selcanvline {w x y} { | 
 |     global canv canvy0 ctext linespc | 
 |     global rowtextx | 
 |     set ymax [lindex [$canv cget -scrollregion] 3] | 
 |     if {$ymax == {}} return | 
 |     set yfrac [lindex [$canv yview] 0] | 
 |     set y [expr {$y + $yfrac * $ymax}] | 
 |     set l [expr {int(($y - $canvy0) / $linespc + 0.5)}] | 
 |     if {$l < 0} { | 
 | 	set l 0 | 
 |     } | 
 |     if {$w eq $canv} { | 
 | 	if {![info exists rowtextx($l)] || $x < $rowtextx($l)} return | 
 |     } | 
 |     unmarkmatches | 
 |     selectline $l 1 | 
 | } | 
 |  | 
 | proc commit_descriptor {p} { | 
 |     global commitinfo | 
 |     if {![info exists commitinfo($p)]} { | 
 | 	getcommit $p | 
 |     } | 
 |     set l "..." | 
 |     if {[llength $commitinfo($p)] > 1} { | 
 | 	set l [lindex $commitinfo($p) 0] | 
 |     } | 
 |     return "$p ($l)\n" | 
 | } | 
 |  | 
 | # append some text to the ctext widget, and make any SHA1 ID | 
 | # that we know about be a clickable link. | 
 | proc appendwithlinks {text tags} { | 
 |     global ctext commitrow linknum curview | 
 |  | 
 |     set start [$ctext index "end - 1c"] | 
 |     $ctext insert end $text $tags | 
 |     set links [regexp -indices -all -inline {[0-9a-f]{40}} $text] | 
 |     foreach l $links { | 
 | 	set s [lindex $l 0] | 
 | 	set e [lindex $l 1] | 
 | 	set linkid [string range $text $s $e] | 
 | 	if {![info exists commitrow($curview,$linkid)]} continue | 
 | 	incr e | 
 | 	$ctext tag add link "$start + $s c" "$start + $e c" | 
 | 	$ctext tag add link$linknum "$start + $s c" "$start + $e c" | 
 | 	$ctext tag bind link$linknum <1> \ | 
 | 	    [list selectline $commitrow($curview,$linkid) 1] | 
 | 	incr linknum | 
 |     } | 
 |     $ctext tag conf link -foreground blue -underline 1 | 
 |     $ctext tag bind link <Enter> { %W configure -cursor hand2 } | 
 |     $ctext tag bind link <Leave> { %W configure -cursor $curtextcursor } | 
 | } | 
 |  | 
 | proc viewnextline {dir} { | 
 |     global canv linespc | 
 |  | 
 |     $canv delete hover | 
 |     set ymax [lindex [$canv cget -scrollregion] 3] | 
 |     set wnow [$canv yview] | 
 |     set wtop [expr {[lindex $wnow 0] * $ymax}] | 
 |     set newtop [expr {$wtop + $dir * $linespc}] | 
 |     if {$newtop < 0} { | 
 | 	set newtop 0 | 
 |     } elseif {$newtop > $ymax} { | 
 | 	set newtop $ymax | 
 |     } | 
 |     allcanvs yview moveto [expr {$newtop * 1.0 / $ymax}] | 
 | } | 
 |  | 
 | # add a list of tag or branch names at position pos | 
 | # returns the number of names inserted | 
 | proc appendrefs {pos ids var} { | 
 |     global ctext commitrow linknum curview $var maxrefs | 
 |  | 
 |     if {[catch {$ctext index $pos}]} { | 
 | 	return 0 | 
 |     } | 
 |     $ctext conf -state normal | 
 |     $ctext delete $pos "$pos lineend" | 
 |     set tags {} | 
 |     foreach id $ids { | 
 | 	foreach tag [set $var\($id\)] { | 
 | 	    lappend tags [list $tag $id] | 
 | 	} | 
 |     } | 
 |     if {[llength $tags] > $maxrefs} { | 
 | 	$ctext insert $pos "many ([llength $tags])" | 
 |     } else { | 
 | 	set tags [lsort -index 0 -decreasing $tags] | 
 | 	set sep {} | 
 | 	foreach ti $tags { | 
 | 	    set id [lindex $ti 1] | 
 | 	    set lk link$linknum | 
 | 	    incr linknum | 
 | 	    $ctext tag delete $lk | 
 | 	    $ctext insert $pos $sep | 
 | 	    $ctext insert $pos [lindex $ti 0] $lk | 
 | 	    if {[info exists commitrow($curview,$id)]} { | 
 | 		$ctext tag conf $lk -foreground blue | 
 | 		$ctext tag bind $lk <1> \ | 
 | 		    [list selectline $commitrow($curview,$id) 1] | 
 | 		$ctext tag conf $lk -underline 1 | 
 | 		$ctext tag bind $lk <Enter> { %W configure -cursor hand2 } | 
 | 		$ctext tag bind $lk <Leave> \ | 
 | 		    { %W configure -cursor $curtextcursor } | 
 | 	    } | 
 | 	    set sep ", " | 
 | 	} | 
 |     } | 
 |     $ctext conf -state disabled | 
 |     return [llength $tags] | 
 | } | 
 |  | 
 | # called when we have finished computing the nearby tags | 
 | proc dispneartags {delay} { | 
 |     global selectedline currentid showneartags tagphase | 
 |  | 
 |     if {![info exists selectedline] || !$showneartags} return | 
 |     after cancel dispnexttag | 
 |     if {$delay} { | 
 | 	after 200 dispnexttag | 
 | 	set tagphase -1 | 
 |     } else { | 
 | 	after idle dispnexttag | 
 | 	set tagphase 0 | 
 |     } | 
 | } | 
 |  | 
 | proc dispnexttag {} { | 
 |     global selectedline currentid showneartags tagphase ctext | 
 |  | 
 |     if {![info exists selectedline] || !$showneartags} return | 
 |     switch -- $tagphase { | 
 | 	0 { | 
 | 	    set dtags [desctags $currentid] | 
 | 	    if {$dtags ne {}} { | 
 | 		appendrefs precedes $dtags idtags | 
 | 	    } | 
 | 	} | 
 | 	1 { | 
 | 	    set atags [anctags $currentid] | 
 | 	    if {$atags ne {}} { | 
 | 		appendrefs follows $atags idtags | 
 | 	    } | 
 | 	} | 
 | 	2 { | 
 | 	    set dheads [descheads $currentid] | 
 | 	    if {$dheads ne {}} { | 
 | 		if {[appendrefs branch $dheads idheads] > 1 | 
 | 		    && [$ctext get "branch -3c"] eq "h"} { | 
 | 		    # turn "Branch" into "Branches" | 
 | 		    $ctext conf -state normal | 
 | 		    $ctext insert "branch -2c" "es" | 
 | 		    $ctext conf -state disabled | 
 | 		} | 
 | 	    } | 
 | 	} | 
 |     } | 
 |     if {[incr tagphase] <= 2} { | 
 | 	after idle dispnexttag | 
 |     } | 
 | } | 
 |  | 
 | proc selectline {l isnew} { | 
 |     global canv canv2 canv3 ctext commitinfo selectedline | 
 |     global displayorder linehtag linentag linedtag | 
 |     global canvy0 linespc parentlist children curview | 
 |     global currentid sha1entry | 
 |     global commentend idtags linknum | 
 |     global mergemax numcommits pending_select | 
 |     global cmitmode showneartags allcommits | 
 |  | 
 |     catch {unset pending_select} | 
 |     $canv delete hover | 
 |     normalline | 
 |     cancel_next_highlight | 
 |     unsel_reflist | 
 |     if {$l < 0 || $l >= $numcommits} return | 
 |     set y [expr {$canvy0 + $l * $linespc}] | 
 |     set ymax [lindex [$canv cget -scrollregion] 3] | 
 |     set ytop [expr {$y - $linespc - 1}] | 
 |     set ybot [expr {$y + $linespc + 1}] | 
 |     set wnow [$canv yview] | 
 |     set wtop [expr {[lindex $wnow 0] * $ymax}] | 
 |     set wbot [expr {[lindex $wnow 1] * $ymax}] | 
 |     set wh [expr {$wbot - $wtop}] | 
 |     set newtop $wtop | 
 |     if {$ytop < $wtop} { | 
 | 	if {$ybot < $wtop} { | 
 | 	    set newtop [expr {$y - $wh / 2.0}] | 
 | 	} else { | 
 | 	    set newtop $ytop | 
 | 	    if {$newtop > $wtop - $linespc} { | 
 | 		set newtop [expr {$wtop - $linespc}] | 
 | 	    } | 
 | 	} | 
 |     } elseif {$ybot > $wbot} { | 
 | 	if {$ytop > $wbot} { | 
 | 	    set newtop [expr {$y - $wh / 2.0}] | 
 | 	} else { | 
 | 	    set newtop [expr {$ybot - $wh}] | 
 | 	    if {$newtop < $wtop + $linespc} { | 
 | 		set newtop [expr {$wtop + $linespc}] | 
 | 	    } | 
 | 	} | 
 |     } | 
 |     if {$newtop != $wtop} { | 
 | 	if {$newtop < 0} { | 
 | 	    set newtop 0 | 
 | 	} | 
 | 	allcanvs yview moveto [expr {$newtop * 1.0 / $ymax}] | 
 | 	drawvisible | 
 |     } | 
 |  | 
 |     if {![info exists linehtag($l)]} return | 
 |     $canv delete secsel | 
 |     set t [eval $canv create rect [$canv bbox $linehtag($l)] -outline {{}} \ | 
 | 	       -tags secsel -fill [$canv cget -selectbackground]] | 
 |     $canv lower $t | 
 |     $canv2 delete secsel | 
 |     set t [eval $canv2 create rect [$canv2 bbox $linentag($l)] -outline {{}} \ | 
 | 	       -tags secsel -fill [$canv2 cget -selectbackground]] | 
 |     $canv2 lower $t | 
 |     $canv3 delete secsel | 
 |     set t [eval $canv3 create rect [$canv3 bbox $linedtag($l)] -outline {{}} \ | 
 | 	       -tags secsel -fill [$canv3 cget -selectbackground]] | 
 |     $canv3 lower $t | 
 |  | 
 |     if {$isnew} { | 
 | 	addtohistory [list selectline $l 0] | 
 |     } | 
 |  | 
 |     set selectedline $l | 
 |  | 
 |     set id [lindex $displayorder $l] | 
 |     set currentid $id | 
 |     $sha1entry delete 0 end | 
 |     $sha1entry insert 0 $id | 
 |     $sha1entry selection from 0 | 
 |     $sha1entry selection to end | 
 |     rhighlight_sel $id | 
 |  | 
 |     $ctext conf -state normal | 
 |     clear_ctext | 
 |     set linknum 0 | 
 |     set info $commitinfo($id) | 
 |     set date [formatdate [lindex $info 2]] | 
 |     $ctext insert end "Author: [lindex $info 1]  $date\n" | 
 |     set date [formatdate [lindex $info 4]] | 
 |     $ctext insert end "Committer: [lindex $info 3]  $date\n" | 
 |     if {[info exists idtags($id)]} { | 
 | 	$ctext insert end "Tags:" | 
 | 	foreach tag $idtags($id) { | 
 | 	    $ctext insert end " $tag" | 
 | 	} | 
 | 	$ctext insert end "\n" | 
 |     } | 
 |  | 
 |     set headers {} | 
 |     set olds [lindex $parentlist $l] | 
 |     if {[llength $olds] > 1} { | 
 | 	set np 0 | 
 | 	foreach p $olds { | 
 | 	    if {$np >= $mergemax} { | 
 | 		set tag mmax | 
 | 	    } else { | 
 | 		set tag m$np | 
 | 	    } | 
 | 	    $ctext insert end "Parent: " $tag | 
 | 	    appendwithlinks [commit_descriptor $p] {} | 
 | 	    incr np | 
 | 	} | 
 |     } else { | 
 | 	foreach p $olds { | 
 | 	    append headers "Parent: [commit_descriptor $p]" | 
 | 	} | 
 |     } | 
 |  | 
 |     foreach c $children($curview,$id) { | 
 | 	append headers "Child:  [commit_descriptor $c]" | 
 |     } | 
 |  | 
 |     # make anything that looks like a SHA1 ID be a clickable link | 
 |     appendwithlinks $headers {} | 
 |     if {$showneartags} { | 
 | 	if {![info exists allcommits]} { | 
 | 	    getallcommits | 
 | 	} | 
 | 	$ctext insert end "Branch: " | 
 | 	$ctext mark set branch "end -1c" | 
 | 	$ctext mark gravity branch left | 
 | 	$ctext insert end "\nFollows: " | 
 | 	$ctext mark set follows "end -1c" | 
 | 	$ctext mark gravity follows left | 
 | 	$ctext insert end "\nPrecedes: " | 
 | 	$ctext mark set precedes "end -1c" | 
 | 	$ctext mark gravity precedes left | 
 | 	$ctext insert end "\n" | 
 | 	dispneartags 1 | 
 |     } | 
 |     $ctext insert end "\n" | 
 |     set comment [lindex $info 5] | 
 |     if {[string first "\r" $comment] >= 0} { | 
 | 	set comment [string map {"\r" "\n    "} $comment] | 
 |     } | 
 |     appendwithlinks $comment {comment} | 
 |  | 
 |     $ctext tag remove found 1.0 end | 
 |     $ctext conf -state disabled | 
 |     set commentend [$ctext index "end - 1c"] | 
 |  | 
 |     init_flist "Comments" | 
 |     if {$cmitmode eq "tree"} { | 
 | 	gettree $id | 
 |     } elseif {[llength $olds] <= 1} { | 
 | 	startdiff $id | 
 |     } else { | 
 | 	mergediff $id $l | 
 |     } | 
 | } | 
 |  | 
 | proc selfirstline {} { | 
 |     unmarkmatches | 
 |     selectline 0 1 | 
 | } | 
 |  | 
 | proc sellastline {} { | 
 |     global numcommits | 
 |     unmarkmatches | 
 |     set l [expr {$numcommits - 1}] | 
 |     selectline $l 1 | 
 | } | 
 |  | 
 | proc selnextline {dir} { | 
 |     global selectedline | 
 |     focus . | 
 |     if {![info exists selectedline]} return | 
 |     set l [expr {$selectedline + $dir}] | 
 |     unmarkmatches | 
 |     selectline $l 1 | 
 | } | 
 |  | 
 | proc selnextpage {dir} { | 
 |     global canv linespc selectedline numcommits | 
 |  | 
 |     set lpp [expr {([winfo height $canv] - 2) / $linespc}] | 
 |     if {$lpp < 1} { | 
 | 	set lpp 1 | 
 |     } | 
 |     allcanvs yview scroll [expr {$dir * $lpp}] units | 
 |     drawvisible | 
 |     if {![info exists selectedline]} return | 
 |     set l [expr {$selectedline + $dir * $lpp}] | 
 |     if {$l < 0} { | 
 | 	set l 0 | 
 |     } elseif {$l >= $numcommits} { | 
 |         set l [expr $numcommits - 1] | 
 |     } | 
 |     unmarkmatches | 
 |     selectline $l 1 | 
 | } | 
 |  | 
 | proc unselectline {} { | 
 |     global selectedline currentid | 
 |  | 
 |     catch {unset selectedline} | 
 |     catch {unset currentid} | 
 |     allcanvs delete secsel | 
 |     rhighlight_none | 
 |     cancel_next_highlight | 
 | } | 
 |  | 
 | proc reselectline {} { | 
 |     global selectedline | 
 |  | 
 |     if {[info exists selectedline]} { | 
 | 	selectline $selectedline 0 | 
 |     } | 
 | } | 
 |  | 
 | proc addtohistory {cmd} { | 
 |     global history historyindex curview | 
 |  | 
 |     set elt [list $curview $cmd] | 
 |     if {$historyindex > 0 | 
 | 	&& [lindex $history [expr {$historyindex - 1}]] == $elt} { | 
 | 	return | 
 |     } | 
 |  | 
 |     if {$historyindex < [llength $history]} { | 
 | 	set history [lreplace $history $historyindex end $elt] | 
 |     } else { | 
 | 	lappend history $elt | 
 |     } | 
 |     incr historyindex | 
 |     if {$historyindex > 1} { | 
 | 	.tf.bar.leftbut conf -state normal | 
 |     } else { | 
 | 	.tf.bar.leftbut conf -state disabled | 
 |     } | 
 |     .tf.bar.rightbut conf -state disabled | 
 | } | 
 |  | 
 | proc godo {elt} { | 
 |     global curview | 
 |  | 
 |     set view [lindex $elt 0] | 
 |     set cmd [lindex $elt 1] | 
 |     if {$curview != $view} { | 
 | 	showview $view | 
 |     } | 
 |     eval $cmd | 
 | } | 
 |  | 
 | proc goback {} { | 
 |     global history historyindex | 
 |     focus . | 
 |  | 
 |     if {$historyindex > 1} { | 
 | 	incr historyindex -1 | 
 | 	godo [lindex $history [expr {$historyindex - 1}]] | 
 | 	.tf.bar.rightbut conf -state normal | 
 |     } | 
 |     if {$historyindex <= 1} { | 
 | 	.tf.bar.leftbut conf -state disabled | 
 |     } | 
 | } | 
 |  | 
 | proc goforw {} { | 
 |     global history historyindex | 
 |     focus . | 
 |  | 
 |     if {$historyindex < [llength $history]} { | 
 | 	set cmd [lindex $history $historyindex] | 
 | 	incr historyindex | 
 | 	godo $cmd | 
 | 	.tf.bar.leftbut conf -state normal | 
 |     } | 
 |     if {$historyindex >= [llength $history]} { | 
 | 	.tf.bar.rightbut conf -state disabled | 
 |     } | 
 | } | 
 |  | 
 | proc gettree {id} { | 
 |     global treefilelist treeidlist diffids diffmergeid treepending | 
 |     global nullid nullid2 | 
 |  | 
 |     set diffids $id | 
 |     catch {unset diffmergeid} | 
 |     if {![info exists treefilelist($id)]} { | 
 | 	if {![info exists treepending]} { | 
 | 	    if {$id eq $nullid} { | 
 | 		set cmd [list | git ls-files] | 
 | 	    } elseif {$id eq $nullid2} { | 
 | 		set cmd [list | git ls-files --stage -t] | 
 | 	    } else { | 
 | 		set cmd [list | git ls-tree -r $id] | 
 | 	    } | 
 | 	    if {[catch {set gtf [open $cmd r]}]} { | 
 | 		return | 
 | 	    } | 
 | 	    set treepending $id | 
 | 	    set treefilelist($id) {} | 
 | 	    set treeidlist($id) {} | 
 | 	    fconfigure $gtf -blocking 0 | 
 | 	    filerun $gtf [list gettreeline $gtf $id] | 
 | 	} | 
 |     } else { | 
 | 	setfilelist $id | 
 |     } | 
 | } | 
 |  | 
 | proc gettreeline {gtf id} { | 
 |     global treefilelist treeidlist treepending cmitmode diffids nullid nullid2 | 
 |  | 
 |     set nl 0 | 
 |     while {[incr nl] <= 1000 && [gets $gtf line] >= 0} { | 
 | 	if {$diffids eq $nullid} { | 
 | 	    set fname $line | 
 | 	} else { | 
 | 	    if {$diffids ne $nullid2 && [lindex $line 1] ne "blob"} continue | 
 | 	    set i [string first "\t" $line] | 
 | 	    if {$i < 0} continue | 
 | 	    set sha1 [lindex $line 2] | 
 | 	    set fname [string range $line [expr {$i+1}] end] | 
 | 	    if {[string index $fname 0] eq "\""} { | 
 | 		set fname [lindex $fname 0] | 
 | 	    } | 
 | 	    lappend treeidlist($id) $sha1 | 
 | 	} | 
 | 	lappend treefilelist($id) $fname | 
 |     } | 
 |     if {![eof $gtf]} { | 
 | 	return [expr {$nl >= 1000? 2: 1}] | 
 |     } | 
 |     close $gtf | 
 |     unset treepending | 
 |     if {$cmitmode ne "tree"} { | 
 | 	if {![info exists diffmergeid]} { | 
 | 	    gettreediffs $diffids | 
 | 	} | 
 |     } elseif {$id ne $diffids} { | 
 | 	gettree $diffids | 
 |     } else { | 
 | 	setfilelist $id | 
 |     } | 
 |     return 0 | 
 | } | 
 |  | 
 | proc showfile {f} { | 
 |     global treefilelist treeidlist diffids nullid nullid2 | 
 |     global ctext commentend | 
 |  | 
 |     set i [lsearch -exact $treefilelist($diffids) $f] | 
 |     if {$i < 0} { | 
 | 	puts "oops, $f not in list for id $diffids" | 
 | 	return | 
 |     } | 
 |     if {$diffids eq $nullid} { | 
 | 	if {[catch {set bf [open $f r]} err]} { | 
 | 	    puts "oops, can't read $f: $err" | 
 | 	    return | 
 | 	} | 
 |     } else { | 
 | 	set blob [lindex $treeidlist($diffids) $i] | 
 | 	if {[catch {set bf [open [concat | git cat-file blob $blob] r]} err]} { | 
 | 	    puts "oops, error reading blob $blob: $err" | 
 | 	    return | 
 | 	} | 
 |     } | 
 |     fconfigure $bf -blocking 0 | 
 |     filerun $bf [list getblobline $bf $diffids] | 
 |     $ctext config -state normal | 
 |     clear_ctext $commentend | 
 |     $ctext insert end "\n" | 
 |     $ctext insert end "$f\n" filesep | 
 |     $ctext config -state disabled | 
 |     $ctext yview $commentend | 
 | } | 
 |  | 
 | proc getblobline {bf id} { | 
 |     global diffids cmitmode ctext | 
 |  | 
 |     if {$id ne $diffids || $cmitmode ne "tree"} { | 
 | 	catch {close $bf} | 
 | 	return 0 | 
 |     } | 
 |     $ctext config -state normal | 
 |     set nl 0 | 
 |     while {[incr nl] <= 1000 && [gets $bf line] >= 0} { | 
 | 	$ctext insert end "$line\n" | 
 |     } | 
 |     if {[eof $bf]} { | 
 | 	# delete last newline | 
 | 	$ctext delete "end - 2c" "end - 1c" | 
 | 	close $bf | 
 | 	return 0 | 
 |     } | 
 |     $ctext config -state disabled | 
 |     return [expr {$nl >= 1000? 2: 1}] | 
 | } | 
 |  | 
 | proc mergediff {id l} { | 
 |     global diffmergeid diffopts mdifffd | 
 |     global diffids | 
 |     global parentlist | 
 |  | 
 |     set diffmergeid $id | 
 |     set diffids $id | 
 |     # this doesn't seem to actually affect anything... | 
 |     set env(GIT_DIFF_OPTS) $diffopts | 
 |     set cmd [concat | git diff-tree --no-commit-id --cc $id] | 
 |     if {[catch {set mdf [open $cmd r]} err]} { | 
 | 	error_popup "Error getting merge diffs: $err" | 
 | 	return | 
 |     } | 
 |     fconfigure $mdf -blocking 0 | 
 |     set mdifffd($id) $mdf | 
 |     set np [llength [lindex $parentlist $l]] | 
 |     filerun $mdf [list getmergediffline $mdf $id $np] | 
 | } | 
 |  | 
 | proc getmergediffline {mdf id np} { | 
 |     global diffmergeid ctext cflist mergemax | 
 |     global difffilestart mdifffd | 
 |  | 
 |     $ctext conf -state normal | 
 |     set nr 0 | 
 |     while {[incr nr] <= 1000 && [gets $mdf line] >= 0} { | 
 | 	if {![info exists diffmergeid] || $id != $diffmergeid | 
 | 	    || $mdf != $mdifffd($id)} { | 
 | 	    close $mdf | 
 | 	    return 0 | 
 | 	} | 
 | 	if {[regexp {^diff --cc (.*)} $line match fname]} { | 
 | 	    # start of a new file | 
 | 	    $ctext insert end "\n" | 
 | 	    set here [$ctext index "end - 1c"] | 
 | 	    lappend difffilestart $here | 
 | 	    add_flist [list $fname] | 
 | 	    set l [expr {(78 - [string length $fname]) / 2}] | 
 | 	    set pad [string range "----------------------------------------" 1 $l] | 
 | 	    $ctext insert end "$pad $fname $pad\n" filesep | 
 | 	} elseif {[regexp {^@@} $line]} { | 
 | 	    $ctext insert end "$line\n" hunksep | 
 | 	} elseif {[regexp {^[0-9a-f]{40}$} $line] || [regexp {^index} $line]} { | 
 | 	    # do nothing | 
 | 	} else { | 
 | 	    # parse the prefix - one ' ', '-' or '+' for each parent | 
 | 	    set spaces {} | 
 | 	    set minuses {} | 
 | 	    set pluses {} | 
 | 	    set isbad 0 | 
 | 	    for {set j 0} {$j < $np} {incr j} { | 
 | 		set c [string range $line $j $j] | 
 | 		if {$c == " "} { | 
 | 		    lappend spaces $j | 
 | 		} elseif {$c == "-"} { | 
 | 		    lappend minuses $j | 
 | 		} elseif {$c == "+"} { | 
 | 		    lappend pluses $j | 
 | 		} else { | 
 | 		    set isbad 1 | 
 | 		    break | 
 | 		} | 
 | 	    } | 
 | 	    set tags {} | 
 | 	    set num {} | 
 | 	    if {!$isbad && $minuses ne {} && $pluses eq {}} { | 
 | 		# line doesn't appear in result, parents in $minuses have the line | 
 | 		set num [lindex $minuses 0] | 
 | 	    } elseif {!$isbad && $pluses ne {} && $minuses eq {}} { | 
 | 		# line appears in result, parents in $pluses don't have the line | 
 | 		lappend tags mresult | 
 | 		set num [lindex $spaces 0] | 
 | 	    } | 
 | 	    if {$num ne {}} { | 
 | 		if {$num >= $mergemax} { | 
 | 		    set num "max" | 
 | 		} | 
 | 		lappend tags m$num | 
 | 	    } | 
 | 	    $ctext insert end "$line\n" $tags | 
 | 	} | 
 |     } | 
 |     $ctext conf -state disabled | 
 |     if {[eof $mdf]} { | 
 | 	close $mdf | 
 | 	return 0 | 
 |     } | 
 |     return [expr {$nr >= 1000? 2: 1}] | 
 | } | 
 |  | 
 | proc startdiff {ids} { | 
 |     global treediffs diffids treepending diffmergeid nullid nullid2 | 
 |  | 
 |     set diffids $ids | 
 |     catch {unset diffmergeid} | 
 |     if {![info exists treediffs($ids)] || | 
 | 	[lsearch -exact $ids $nullid] >= 0 || | 
 | 	[lsearch -exact $ids $nullid2] >= 0} { | 
 | 	if {![info exists treepending]} { | 
 | 	    gettreediffs $ids | 
 | 	} | 
 |     } else { | 
 | 	addtocflist $ids | 
 |     } | 
 | } | 
 |  | 
 | proc addtocflist {ids} { | 
 |     global treediffs cflist | 
 |     add_flist $treediffs($ids) | 
 |     getblobdiffs $ids | 
 | } | 
 |  | 
 | proc diffcmd {ids flags} { | 
 |     global nullid nullid2 | 
 |  | 
 |     set i [lsearch -exact $ids $nullid] | 
 |     set j [lsearch -exact $ids $nullid2] | 
 |     if {$i >= 0} { | 
 | 	if {[llength $ids] > 1 && $j < 0} { | 
 | 	    # comparing working directory with some specific revision | 
 | 	    set cmd [concat | git diff-index $flags] | 
 | 	    if {$i == 0} { | 
 | 		lappend cmd -R [lindex $ids 1] | 
 | 	    } else { | 
 | 		lappend cmd [lindex $ids 0] | 
 | 	    } | 
 | 	} else { | 
 | 	    # comparing working directory with index | 
 | 	    set cmd [concat | git diff-files $flags] | 
 | 	    if {$j == 1} { | 
 | 		lappend cmd -R | 
 | 	    } | 
 | 	} | 
 |     } elseif {$j >= 0} { | 
 | 	set cmd [concat | git diff-index --cached $flags] | 
 | 	if {[llength $ids] > 1} { | 
 | 	    # comparing index with specific revision | 
 | 	    if {$i == 0} { | 
 | 		lappend cmd -R [lindex $ids 1] | 
 | 	    } else { | 
 | 		lappend cmd [lindex $ids 0] | 
 | 	    } | 
 | 	} else { | 
 | 	    # comparing index with HEAD | 
 | 	    lappend cmd HEAD | 
 | 	} | 
 |     } else { | 
 | 	set cmd [concat | git diff-tree -r $flags $ids] | 
 |     } | 
 |     return $cmd | 
 | } | 
 |  | 
 | proc gettreediffs {ids} { | 
 |     global treediff treepending | 
 |  | 
 |     set treepending $ids | 
 |     set treediff {} | 
 |     if {[catch {set gdtf [open [diffcmd $ids {--no-commit-id}] r]}]} return | 
 |     fconfigure $gdtf -blocking 0 | 
 |     filerun $gdtf [list gettreediffline $gdtf $ids] | 
 | } | 
 |  | 
 | proc gettreediffline {gdtf ids} { | 
 |     global treediff treediffs treepending diffids diffmergeid | 
 |     global cmitmode | 
 |  | 
 |     set nr 0 | 
 |     while {[incr nr] <= 1000 && [gets $gdtf line] >= 0} { | 
 | 	set i [string first "\t" $line] | 
 | 	if {$i >= 0} { | 
 | 	    set file [string range $line [expr {$i+1}] end] | 
 | 	    if {[string index $file 0] eq "\""} { | 
 | 		set file [lindex $file 0] | 
 | 	    } | 
 | 	    lappend treediff $file | 
 | 	} | 
 |     } | 
 |     if {![eof $gdtf]} { | 
 | 	return [expr {$nr >= 1000? 2: 1}] | 
 |     } | 
 |     close $gdtf | 
 |     set treediffs($ids) $treediff | 
 |     unset treepending | 
 |     if {$cmitmode eq "tree"} { | 
 | 	gettree $diffids | 
 |     } elseif {$ids != $diffids} { | 
 | 	if {![info exists diffmergeid]} { | 
 | 	    gettreediffs $diffids | 
 | 	} | 
 |     } else { | 
 | 	addtocflist $ids | 
 |     } | 
 |     return 0 | 
 | } | 
 |  | 
 | # empty string or positive integer | 
 | proc diffcontextvalidate {v} { | 
 |     return [regexp {^(|[1-9][0-9]*)$} $v] | 
 | } | 
 |  | 
 | proc diffcontextchange {n1 n2 op} { | 
 |     global diffcontextstring diffcontext | 
 |  | 
 |     if {[string is integer -strict $diffcontextstring]} { | 
 | 	if {$diffcontextstring > 0} { | 
 | 	    set diffcontext $diffcontextstring | 
 | 	    reselectline | 
 | 	} | 
 |     } | 
 | } | 
 |  | 
 | proc getblobdiffs {ids} { | 
 |     global diffopts blobdifffd diffids env | 
 |     global diffinhdr treediffs | 
 |     global diffcontext | 
 |  | 
 |     set env(GIT_DIFF_OPTS) $diffopts | 
 |     if {[catch {set bdf [open [diffcmd $ids "-p -C --no-commit-id -U$diffcontext"] r]} err]} { | 
 | 	puts "error getting diffs: $err" | 
 | 	return | 
 |     } | 
 |     set diffinhdr 0 | 
 |     fconfigure $bdf -blocking 0 | 
 |     set blobdifffd($ids) $bdf | 
 |     filerun $bdf [list getblobdiffline $bdf $diffids] | 
 | } | 
 |  | 
 | proc setinlist {var i val} { | 
 |     global $var | 
 |  | 
 |     while {[llength [set $var]] < $i} { | 
 | 	lappend $var {} | 
 |     } | 
 |     if {[llength [set $var]] == $i} { | 
 | 	lappend $var $val | 
 |     } else { | 
 | 	lset $var $i $val | 
 |     } | 
 | } | 
 |  | 
 | proc makediffhdr {fname ids} { | 
 |     global ctext curdiffstart treediffs | 
 |  | 
 |     set i [lsearch -exact $treediffs($ids) $fname] | 
 |     if {$i >= 0} { | 
 | 	setinlist difffilestart $i $curdiffstart | 
 |     } | 
 |     set l [expr {(78 - [string length $fname]) / 2}] | 
 |     set pad [string range "----------------------------------------" 1 $l] | 
 |     $ctext insert $curdiffstart "$pad $fname $pad" filesep | 
 | } | 
 |  | 
 | proc getblobdiffline {bdf ids} { | 
 |     global diffids blobdifffd ctext curdiffstart | 
 |     global diffnexthead diffnextnote difffilestart | 
 |     global diffinhdr treediffs | 
 |  | 
 |     set nr 0 | 
 |     $ctext conf -state normal | 
 |     while {[incr nr] <= 1000 && [gets $bdf line] >= 0} { | 
 | 	if {$ids != $diffids || $bdf != $blobdifffd($ids)} { | 
 | 	    close $bdf | 
 | 	    return 0 | 
 | 	} | 
 | 	if {![string compare -length 11 "diff --git " $line]} { | 
 | 	    # trim off "diff --git " | 
 | 	    set line [string range $line 11 end] | 
 | 	    set diffinhdr 1 | 
 | 	    # start of a new file | 
 | 	    $ctext insert end "\n" | 
 | 	    set curdiffstart [$ctext index "end - 1c"] | 
 | 	    $ctext insert end "\n" filesep | 
 | 	    # If the name hasn't changed the length will be odd, | 
 | 	    # the middle char will be a space, and the two bits either | 
 | 	    # side will be a/name and b/name, or "a/name" and "b/name". | 
 | 	    # If the name has changed we'll get "rename from" and | 
 | 	    # "rename to" or "copy from" and "copy to" lines following this, | 
 | 	    # and we'll use them to get the filenames. | 
 | 	    # This complexity is necessary because spaces in the filename(s) | 
 | 	    # don't get escaped. | 
 | 	    set l [string length $line] | 
 | 	    set i [expr {$l / 2}] | 
 | 	    if {!(($l & 1) && [string index $line $i] eq " " && | 
 | 		  [string range $line 2 [expr {$i - 1}]] eq \ | 
 | 		      [string range $line [expr {$i + 3}] end])} { | 
 | 		continue | 
 | 	    } | 
 | 	    # unescape if quoted and chop off the a/ from the front | 
 | 	    if {[string index $line 0] eq "\""} { | 
 | 		set fname [string range [lindex $line 0] 2 end] | 
 | 	    } else { | 
 | 		set fname [string range $line 2 [expr {$i - 1}]] | 
 | 	    } | 
 | 	    makediffhdr $fname $ids | 
 |  | 
 | 	} elseif {[regexp {^@@ -([0-9]+)(,[0-9]+)? \+([0-9]+)(,[0-9]+)? @@(.*)} \ | 
 | 		       $line match f1l f1c f2l f2c rest]} { | 
 | 	    $ctext insert end "$line\n" hunksep | 
 | 	    set diffinhdr 0 | 
 |  | 
 | 	} elseif {$diffinhdr} { | 
 | 	    if {![string compare -length 12 "rename from " $line] || | 
 | 		![string compare -length 10 "copy from " $line]} { | 
 | 		set fname [string range $line [expr 6 + [string first " from " $line] ] end] | 
 | 		if {[string index $fname 0] eq "\""} { | 
 | 		    set fname [lindex $fname 0] | 
 | 		} | 
 | 		set i [lsearch -exact $treediffs($ids) $fname] | 
 | 		if {$i >= 0} { | 
 | 		    setinlist difffilestart $i $curdiffstart | 
 | 		} | 
 | 	    } elseif {![string compare -length 10 $line "rename to "] || | 
 | 		      ![string compare -length 8 $line "copy to "]} { | 
 | 		set fname [string range $line [expr 4 + [string first " to " $line] ] end] | 
 | 		if {[string index $fname 0] eq "\""} { | 
 | 		    set fname [lindex $fname 0] | 
 | 		} | 
 | 		makediffhdr $fname $ids | 
 | 	    } elseif {[string compare -length 3 $line "---"] == 0} { | 
 | 		# do nothing | 
 | 		continue | 
 | 	    } elseif {[string compare -length 3 $line "+++"] == 0} { | 
 | 		set diffinhdr 0 | 
 | 		continue | 
 | 	    } | 
 | 	    $ctext insert end "$line\n" filesep | 
 |  | 
 | 	} else { | 
 | 	    set x [string range $line 0 0] | 
 | 	    if {$x == "-" || $x == "+"} { | 
 | 		set tag [expr {$x == "+"}] | 
 | 		$ctext insert end "$line\n" d$tag | 
 | 	    } elseif {$x == " "} { | 
 | 		$ctext insert end "$line\n" | 
 | 	    } else { | 
 | 		# "\ No newline at end of file", | 
 | 		# or something else we don't recognize | 
 | 		$ctext insert end "$line\n" hunksep | 
 | 	    } | 
 | 	} | 
 |     } | 
 |     $ctext conf -state disabled | 
 |     if {[eof $bdf]} { | 
 | 	close $bdf | 
 | 	return 0 | 
 |     } | 
 |     return [expr {$nr >= 1000? 2: 1}] | 
 | } | 
 |  | 
 | proc changediffdisp {} { | 
 |     global ctext diffelide | 
 |  | 
 |     $ctext tag conf d0 -elide [lindex $diffelide 0] | 
 |     $ctext tag conf d1 -elide [lindex $diffelide 1] | 
 | } | 
 |  | 
 | proc prevfile {} { | 
 |     global difffilestart ctext | 
 |     set prev [lindex $difffilestart 0] | 
 |     set here [$ctext index @0,0] | 
 |     foreach loc $difffilestart { | 
 | 	if {[$ctext compare $loc >= $here]} { | 
 | 	    $ctext yview $prev | 
 | 	    return | 
 | 	} | 
 | 	set prev $loc | 
 |     } | 
 |     $ctext yview $prev | 
 | } | 
 |  | 
 | proc nextfile {} { | 
 |     global difffilestart ctext | 
 |     set here [$ctext index @0,0] | 
 |     foreach loc $difffilestart { | 
 | 	if {[$ctext compare $loc > $here]} { | 
 | 	    $ctext yview $loc | 
 | 	    return | 
 | 	} | 
 |     } | 
 | } | 
 |  | 
 | proc clear_ctext {{first 1.0}} { | 
 |     global ctext smarktop smarkbot | 
 |  | 
 |     set l [lindex [split $first .] 0] | 
 |     if {![info exists smarktop] || [$ctext compare $first < $smarktop.0]} { | 
 | 	set smarktop $l | 
 |     } | 
 |     if {![info exists smarkbot] || [$ctext compare $first < $smarkbot.0]} { | 
 | 	set smarkbot $l | 
 |     } | 
 |     $ctext delete $first end | 
 | } | 
 |  | 
 | proc incrsearch {name ix op} { | 
 |     global ctext searchstring searchdirn | 
 |  | 
 |     $ctext tag remove found 1.0 end | 
 |     if {[catch {$ctext index anchor}]} { | 
 | 	# no anchor set, use start of selection, or of visible area | 
 | 	set sel [$ctext tag ranges sel] | 
 | 	if {$sel ne {}} { | 
 | 	    $ctext mark set anchor [lindex $sel 0] | 
 | 	} elseif {$searchdirn eq "-forwards"} { | 
 | 	    $ctext mark set anchor @0,0 | 
 | 	} else { | 
 | 	    $ctext mark set anchor @0,[winfo height $ctext] | 
 | 	} | 
 |     } | 
 |     if {$searchstring ne {}} { | 
 | 	set here [$ctext search $searchdirn -- $searchstring anchor] | 
 | 	if {$here ne {}} { | 
 | 	    $ctext see $here | 
 | 	} | 
 | 	searchmarkvisible 1 | 
 |     } | 
 | } | 
 |  | 
 | proc dosearch {} { | 
 |     global sstring ctext searchstring searchdirn | 
 |  | 
 |     focus $sstring | 
 |     $sstring icursor end | 
 |     set searchdirn -forwards | 
 |     if {$searchstring ne {}} { | 
 | 	set sel [$ctext tag ranges sel] | 
 | 	if {$sel ne {}} { | 
 | 	    set start "[lindex $sel 0] + 1c" | 
 | 	} elseif {[catch {set start [$ctext index anchor]}]} { | 
 | 	    set start "@0,0" | 
 | 	} | 
 | 	set match [$ctext search -count mlen -- $searchstring $start] | 
 | 	$ctext tag remove sel 1.0 end | 
 | 	if {$match eq {}} { | 
 | 	    bell | 
 | 	    return | 
 | 	} | 
 | 	$ctext see $match | 
 | 	set mend "$match + $mlen c" | 
 | 	$ctext tag add sel $match $mend | 
 | 	$ctext mark unset anchor | 
 |     } | 
 | } | 
 |  | 
 | proc dosearchback {} { | 
 |     global sstring ctext searchstring searchdirn | 
 |  | 
 |     focus $sstring | 
 |     $sstring icursor end | 
 |     set searchdirn -backwards | 
 |     if {$searchstring ne {}} { | 
 | 	set sel [$ctext tag ranges sel] | 
 | 	if {$sel ne {}} { | 
 | 	    set start [lindex $sel 0] | 
 | 	} elseif {[catch {set start [$ctext index anchor]}]} { | 
 | 	    set start @0,[winfo height $ctext] | 
 | 	} | 
 | 	set match [$ctext search -backwards -count ml -- $searchstring $start] | 
 | 	$ctext tag remove sel 1.0 end | 
 | 	if {$match eq {}} { | 
 | 	    bell | 
 | 	    return | 
 | 	} | 
 | 	$ctext see $match | 
 | 	set mend "$match + $ml c" | 
 | 	$ctext tag add sel $match $mend | 
 | 	$ctext mark unset anchor | 
 |     } | 
 | } | 
 |  | 
 | proc searchmark {first last} { | 
 |     global ctext searchstring | 
 |  | 
 |     set mend $first.0 | 
 |     while {1} { | 
 | 	set match [$ctext search -count mlen -- $searchstring $mend $last.end] | 
 | 	if {$match eq {}} break | 
 | 	set mend "$match + $mlen c" | 
 | 	$ctext tag add found $match $mend | 
 |     } | 
 | } | 
 |  | 
 | proc searchmarkvisible {doall} { | 
 |     global ctext smarktop smarkbot | 
 |  | 
 |     set topline [lindex [split [$ctext index @0,0] .] 0] | 
 |     set botline [lindex [split [$ctext index @0,[winfo height $ctext]] .] 0] | 
 |     if {$doall || $botline < $smarktop || $topline > $smarkbot} { | 
 | 	# no overlap with previous | 
 | 	searchmark $topline $botline | 
 | 	set smarktop $topline | 
 | 	set smarkbot $botline | 
 |     } else { | 
 | 	if {$topline < $smarktop} { | 
 | 	    searchmark $topline [expr {$smarktop-1}] | 
 | 	    set smarktop $topline | 
 | 	} | 
 | 	if {$botline > $smarkbot} { | 
 | 	    searchmark [expr {$smarkbot+1}] $botline | 
 | 	    set smarkbot $botline | 
 | 	} | 
 |     } | 
 | } | 
 |  | 
 | proc scrolltext {f0 f1} { | 
 |     global searchstring | 
 |  | 
 |     .bleft.sb set $f0 $f1 | 
 |     if {$searchstring ne {}} { | 
 | 	searchmarkvisible 0 | 
 |     } | 
 | } | 
 |  | 
 | proc setcoords {} { | 
 |     global linespc charspc canvx0 canvy0 mainfont | 
 |     global xspc1 xspc2 lthickness | 
 |  | 
 |     set linespc [font metrics $mainfont -linespace] | 
 |     set charspc [font measure $mainfont "m"] | 
 |     set canvy0 [expr {int(3 + 0.5 * $linespc)}] | 
 |     set canvx0 [expr {int(3 + 0.5 * $linespc)}] | 
 |     set lthickness [expr {int($linespc / 9) + 1}] | 
 |     set xspc1(0) $linespc | 
 |     set xspc2 $linespc | 
 | } | 
 |  | 
 | proc redisplay {} { | 
 |     global canv | 
 |     global selectedline | 
 |  | 
 |     set ymax [lindex [$canv cget -scrollregion] 3] | 
 |     if {$ymax eq {} || $ymax == 0} return | 
 |     set span [$canv yview] | 
 |     clear_display | 
 |     setcanvscroll | 
 |     allcanvs yview moveto [lindex $span 0] | 
 |     drawvisible | 
 |     if {[info exists selectedline]} { | 
 | 	selectline $selectedline 0 | 
 | 	allcanvs yview moveto [lindex $span 0] | 
 |     } | 
 | } | 
 |  | 
 | proc incrfont {inc} { | 
 |     global mainfont textfont ctext canv phase cflist showrefstop | 
 |     global charspc tabstop | 
 |     global stopped entries | 
 |     unmarkmatches | 
 |     set mainfont [lreplace $mainfont 1 1 [expr {[lindex $mainfont 1] + $inc}]] | 
 |     set textfont [lreplace $textfont 1 1 [expr {[lindex $textfont 1] + $inc}]] | 
 |     setcoords | 
 |     $ctext conf -font $textfont -tabs "[expr {$tabstop * $charspc}]" | 
 |     $cflist conf -font $textfont | 
 |     $ctext tag conf filesep -font [concat $textfont bold] | 
 |     foreach e $entries { | 
 | 	$e conf -font $mainfont | 
 |     } | 
 |     if {$phase eq "getcommits"} { | 
 | 	$canv itemconf textitems -font $mainfont | 
 |     } | 
 |     if {[info exists showrefstop] && [winfo exists $showrefstop]} { | 
 | 	$showrefstop.list conf -font $mainfont | 
 |     } | 
 |     redisplay | 
 | } | 
 |  | 
 | proc clearsha1 {} { | 
 |     global sha1entry sha1string | 
 |     if {[string length $sha1string] == 40} { | 
 | 	$sha1entry delete 0 end | 
 |     } | 
 | } | 
 |  | 
 | proc sha1change {n1 n2 op} { | 
 |     global sha1string currentid sha1but | 
 |     if {$sha1string == {} | 
 | 	|| ([info exists currentid] && $sha1string == $currentid)} { | 
 | 	set state disabled | 
 |     } else { | 
 | 	set state normal | 
 |     } | 
 |     if {[$sha1but cget -state] == $state} return | 
 |     if {$state == "normal"} { | 
 | 	$sha1but conf -state normal -relief raised -text "Goto: " | 
 |     } else { | 
 | 	$sha1but conf -state disabled -relief flat -text "SHA1 ID: " | 
 |     } | 
 | } | 
 |  | 
 | proc gotocommit {} { | 
 |     global sha1string currentid commitrow tagids headids | 
 |     global displayorder numcommits curview | 
 |  | 
 |     if {$sha1string == {} | 
 | 	|| ([info exists currentid] && $sha1string == $currentid)} return | 
 |     if {[info exists tagids($sha1string)]} { | 
 | 	set id $tagids($sha1string) | 
 |     } elseif {[info exists headids($sha1string)]} { | 
 | 	set id $headids($sha1string) | 
 |     } else { | 
 | 	set id [string tolower $sha1string] | 
 | 	if {[regexp {^[0-9a-f]{4,39}$} $id]} { | 
 | 	    set matches {} | 
 | 	    foreach i $displayorder { | 
 | 		if {[string match $id* $i]} { | 
 | 		    lappend matches $i | 
 | 		} | 
 | 	    } | 
 | 	    if {$matches ne {}} { | 
 | 		if {[llength $matches] > 1} { | 
 | 		    error_popup "Short SHA1 id $id is ambiguous" | 
 | 		    return | 
 | 		} | 
 | 		set id [lindex $matches 0] | 
 | 	    } | 
 | 	} | 
 |     } | 
 |     if {[info exists commitrow($curview,$id)]} { | 
 | 	selectline $commitrow($curview,$id) 1 | 
 | 	return | 
 |     } | 
 |     if {[regexp {^[0-9a-fA-F]{4,}$} $sha1string]} { | 
 | 	set type "SHA1 id" | 
 |     } else { | 
 | 	set type "Tag/Head" | 
 |     } | 
 |     error_popup "$type $sha1string is not known" | 
 | } | 
 |  | 
 | proc lineenter {x y id} { | 
 |     global hoverx hovery hoverid hovertimer | 
 |     global commitinfo canv | 
 |  | 
 |     if {![info exists commitinfo($id)] && ![getcommit $id]} return | 
 |     set hoverx $x | 
 |     set hovery $y | 
 |     set hoverid $id | 
 |     if {[info exists hovertimer]} { | 
 | 	after cancel $hovertimer | 
 |     } | 
 |     set hovertimer [after 500 linehover] | 
 |     $canv delete hover | 
 | } | 
 |  | 
 | proc linemotion {x y id} { | 
 |     global hoverx hovery hoverid hovertimer | 
 |  | 
 |     if {[info exists hoverid] && $id == $hoverid} { | 
 | 	set hoverx $x | 
 | 	set hovery $y | 
 | 	if {[info exists hovertimer]} { | 
 | 	    after cancel $hovertimer | 
 | 	} | 
 | 	set hovertimer [after 500 linehover] | 
 |     } | 
 | } | 
 |  | 
 | proc lineleave {id} { | 
 |     global hoverid hovertimer canv | 
 |  | 
 |     if {[info exists hoverid] && $id == $hoverid} { | 
 | 	$canv delete hover | 
 | 	if {[info exists hovertimer]} { | 
 | 	    after cancel $hovertimer | 
 | 	    unset hovertimer | 
 | 	} | 
 | 	unset hoverid | 
 |     } | 
 | } | 
 |  | 
 | proc linehover {} { | 
 |     global hoverx hovery hoverid hovertimer | 
 |     global canv linespc lthickness | 
 |     global commitinfo mainfont | 
 |  | 
 |     set text [lindex $commitinfo($hoverid) 0] | 
 |     set ymax [lindex [$canv cget -scrollregion] 3] | 
 |     if {$ymax == {}} return | 
 |     set yfrac [lindex [$canv yview] 0] | 
 |     set x [expr {$hoverx + 2 * $linespc}] | 
 |     set y [expr {$hovery + $yfrac * $ymax - $linespc / 2}] | 
 |     set x0 [expr {$x - 2 * $lthickness}] | 
 |     set y0 [expr {$y - 2 * $lthickness}] | 
 |     set x1 [expr {$x + [font measure $mainfont $text] + 2 * $lthickness}] | 
 |     set y1 [expr {$y + $linespc + 2 * $lthickness}] | 
 |     set t [$canv create rectangle $x0 $y0 $x1 $y1 \ | 
 | 	       -fill \#ffff80 -outline black -width 1 -tags hover] | 
 |     $canv raise $t | 
 |     set t [$canv create text $x $y -anchor nw -text $text -tags hover \ | 
 | 	       -font $mainfont] | 
 |     $canv raise $t | 
 | } | 
 |  | 
 | proc clickisonarrow {id y} { | 
 |     global lthickness | 
 |  | 
 |     set ranges [rowranges $id] | 
 |     set thresh [expr {2 * $lthickness + 6}] | 
 |     set n [expr {[llength $ranges] - 1}] | 
 |     for {set i 1} {$i < $n} {incr i} { | 
 | 	set row [lindex $ranges $i] | 
 | 	if {abs([yc $row] - $y) < $thresh} { | 
 | 	    return $i | 
 | 	} | 
 |     } | 
 |     return {} | 
 | } | 
 |  | 
 | proc arrowjump {id n y} { | 
 |     global canv | 
 |  | 
 |     # 1 <-> 2, 3 <-> 4, etc... | 
 |     set n [expr {(($n - 1) ^ 1) + 1}] | 
 |     set row [lindex [rowranges $id] $n] | 
 |     set yt [yc $row] | 
 |     set ymax [lindex [$canv cget -scrollregion] 3] | 
 |     if {$ymax eq {} || $ymax <= 0} return | 
 |     set view [$canv yview] | 
 |     set yspan [expr {[lindex $view 1] - [lindex $view 0]}] | 
 |     set yfrac [expr {$yt / $ymax - $yspan / 2}] | 
 |     if {$yfrac < 0} { | 
 | 	set yfrac 0 | 
 |     } | 
 |     allcanvs yview moveto $yfrac | 
 | } | 
 |  | 
 | proc lineclick {x y id isnew} { | 
 |     global ctext commitinfo children canv thickerline curview | 
 |  | 
 |     if {![info exists commitinfo($id)] && ![getcommit $id]} return | 
 |     unmarkmatches | 
 |     unselectline | 
 |     normalline | 
 |     $canv delete hover | 
 |     # draw this line thicker than normal | 
 |     set thickerline $id | 
 |     drawlines $id | 
 |     if {$isnew} { | 
 | 	set ymax [lindex [$canv cget -scrollregion] 3] | 
 | 	if {$ymax eq {}} return | 
 | 	set yfrac [lindex [$canv yview] 0] | 
 | 	set y [expr {$y + $yfrac * $ymax}] | 
 |     } | 
 |     set dirn [clickisonarrow $id $y] | 
 |     if {$dirn ne {}} { | 
 | 	arrowjump $id $dirn $y | 
 | 	return | 
 |     } | 
 |  | 
 |     if {$isnew} { | 
 | 	addtohistory [list lineclick $x $y $id 0] | 
 |     } | 
 |     # fill the details pane with info about this line | 
 |     $ctext conf -state normal | 
 |     clear_ctext | 
 |     $ctext tag conf link -foreground blue -underline 1 | 
 |     $ctext tag bind link <Enter> { %W configure -cursor hand2 } | 
 |     $ctext tag bind link <Leave> { %W configure -cursor $curtextcursor } | 
 |     $ctext insert end "Parent:\t" | 
 |     $ctext insert end $id [list link link0] | 
 |     $ctext tag bind link0 <1> [list selbyid $id] | 
 |     set info $commitinfo($id) | 
 |     $ctext insert end "\n\t[lindex $info 0]\n" | 
 |     $ctext insert end "\tAuthor:\t[lindex $info 1]\n" | 
 |     set date [formatdate [lindex $info 2]] | 
 |     $ctext insert end "\tDate:\t$date\n" | 
 |     set kids $children($curview,$id) | 
 |     if {$kids ne {}} { | 
 | 	$ctext insert end "\nChildren:" | 
 | 	set i 0 | 
 | 	foreach child $kids { | 
 | 	    incr i | 
 | 	    if {![info exists commitinfo($child)] && ![getcommit $child]} continue | 
 | 	    set info $commitinfo($child) | 
 | 	    $ctext insert end "\n\t" | 
 | 	    $ctext insert end $child [list link link$i] | 
 | 	    $ctext tag bind link$i <1> [list selbyid $child] | 
 | 	    $ctext insert end "\n\t[lindex $info 0]" | 
 | 	    $ctext insert end "\n\tAuthor:\t[lindex $info 1]" | 
 | 	    set date [formatdate [lindex $info 2]] | 
 | 	    $ctext insert end "\n\tDate:\t$date\n" | 
 | 	} | 
 |     } | 
 |     $ctext conf -state disabled | 
 |     init_flist {} | 
 | } | 
 |  | 
 | proc normalline {} { | 
 |     global thickerline | 
 |     if {[info exists thickerline]} { | 
 | 	set id $thickerline | 
 | 	unset thickerline | 
 | 	drawlines $id | 
 |     } | 
 | } | 
 |  | 
 | proc selbyid {id} { | 
 |     global commitrow curview | 
 |     if {[info exists commitrow($curview,$id)]} { | 
 | 	selectline $commitrow($curview,$id) 1 | 
 |     } | 
 | } | 
 |  | 
 | proc mstime {} { | 
 |     global startmstime | 
 |     if {![info exists startmstime]} { | 
 | 	set startmstime [clock clicks -milliseconds] | 
 |     } | 
 |     return [format "%.3f" [expr {([clock click -milliseconds] - $startmstime) / 1000.0}]] | 
 | } | 
 |  | 
 | proc rowmenu {x y id} { | 
 |     global rowctxmenu commitrow selectedline rowmenuid curview | 
 |     global nullid nullid2 fakerowmenu mainhead | 
 |  | 
 |     set rowmenuid $id | 
 |     if {![info exists selectedline] | 
 | 	|| $commitrow($curview,$id) eq $selectedline} { | 
 | 	set state disabled | 
 |     } else { | 
 | 	set state normal | 
 |     } | 
 |     if {$id ne $nullid && $id ne $nullid2} { | 
 | 	set menu $rowctxmenu | 
 | 	$menu entryconfigure 7 -label "Reset $mainhead branch to here" | 
 |     } else { | 
 | 	set menu $fakerowmenu | 
 |     } | 
 |     $menu entryconfigure "Diff this*" -state $state | 
 |     $menu entryconfigure "Diff selected*" -state $state | 
 |     $menu entryconfigure "Make patch" -state $state | 
 |     tk_popup $menu $x $y | 
 | } | 
 |  | 
 | proc diffvssel {dirn} { | 
 |     global rowmenuid selectedline displayorder | 
 |  | 
 |     if {![info exists selectedline]} return | 
 |     if {$dirn} { | 
 | 	set oldid [lindex $displayorder $selectedline] | 
 | 	set newid $rowmenuid | 
 |     } else { | 
 | 	set oldid $rowmenuid | 
 | 	set newid [lindex $displayorder $selectedline] | 
 |     } | 
 |     addtohistory [list doseldiff $oldid $newid] | 
 |     doseldiff $oldid $newid | 
 | } | 
 |  | 
 | proc doseldiff {oldid newid} { | 
 |     global ctext | 
 |     global commitinfo | 
 |  | 
 |     $ctext conf -state normal | 
 |     clear_ctext | 
 |     init_flist "Top" | 
 |     $ctext insert end "From " | 
 |     $ctext tag conf link -foreground blue -underline 1 | 
 |     $ctext tag bind link <Enter> { %W configure -cursor hand2 } | 
 |     $ctext tag bind link <Leave> { %W configure -cursor $curtextcursor } | 
 |     $ctext tag bind link0 <1> [list selbyid $oldid] | 
 |     $ctext insert end $oldid [list link link0] | 
 |     $ctext insert end "\n     " | 
 |     $ctext insert end [lindex $commitinfo($oldid) 0] | 
 |     $ctext insert end "\n\nTo   " | 
 |     $ctext tag bind link1 <1> [list selbyid $newid] | 
 |     $ctext insert end $newid [list link link1] | 
 |     $ctext insert end "\n     " | 
 |     $ctext insert end [lindex $commitinfo($newid) 0] | 
 |     $ctext insert end "\n" | 
 |     $ctext conf -state disabled | 
 |     $ctext tag remove found 1.0 end | 
 |     startdiff [list $oldid $newid] | 
 | } | 
 |  | 
 | proc mkpatch {} { | 
 |     global rowmenuid currentid commitinfo patchtop patchnum | 
 |  | 
 |     if {![info exists currentid]} return | 
 |     set oldid $currentid | 
 |     set oldhead [lindex $commitinfo($oldid) 0] | 
 |     set newid $rowmenuid | 
 |     set newhead [lindex $commitinfo($newid) 0] | 
 |     set top .patch | 
 |     set patchtop $top | 
 |     catch {destroy $top} | 
 |     toplevel $top | 
 |     label $top.title -text "Generate patch" | 
 |     grid $top.title - -pady 10 | 
 |     label $top.from -text "From:" | 
 |     entry $top.fromsha1 -width 40 -relief flat | 
 |     $top.fromsha1 insert 0 $oldid | 
 |     $top.fromsha1 conf -state readonly | 
 |     grid $top.from $top.fromsha1 -sticky w | 
 |     entry $top.fromhead -width 60 -relief flat | 
 |     $top.fromhead insert 0 $oldhead | 
 |     $top.fromhead conf -state readonly | 
 |     grid x $top.fromhead -sticky w | 
 |     label $top.to -text "To:" | 
 |     entry $top.tosha1 -width 40 -relief flat | 
 |     $top.tosha1 insert 0 $newid | 
 |     $top.tosha1 conf -state readonly | 
 |     grid $top.to $top.tosha1 -sticky w | 
 |     entry $top.tohead -width 60 -relief flat | 
 |     $top.tohead insert 0 $newhead | 
 |     $top.tohead conf -state readonly | 
 |     grid x $top.tohead -sticky w | 
 |     button $top.rev -text "Reverse" -command mkpatchrev -padx 5 | 
 |     grid $top.rev x -pady 10 | 
 |     label $top.flab -text "Output file:" | 
 |     entry $top.fname -width 60 | 
 |     $top.fname insert 0 [file normalize "patch$patchnum.patch"] | 
 |     incr patchnum | 
 |     grid $top.flab $top.fname -sticky w | 
 |     frame $top.buts | 
 |     button $top.buts.gen -text "Generate" -command mkpatchgo | 
 |     button $top.buts.can -text "Cancel" -command mkpatchcan | 
 |     grid $top.buts.gen $top.buts.can | 
 |     grid columnconfigure $top.buts 0 -weight 1 -uniform a | 
 |     grid columnconfigure $top.buts 1 -weight 1 -uniform a | 
 |     grid $top.buts - -pady 10 -sticky ew | 
 |     focus $top.fname | 
 | } | 
 |  | 
 | proc mkpatchrev {} { | 
 |     global patchtop | 
 |  | 
 |     set oldid [$patchtop.fromsha1 get] | 
 |     set oldhead [$patchtop.fromhead get] | 
 |     set newid [$patchtop.tosha1 get] | 
 |     set newhead [$patchtop.tohead get] | 
 |     foreach e [list fromsha1 fromhead tosha1 tohead] \ | 
 | 	    v [list $newid $newhead $oldid $oldhead] { | 
 | 	$patchtop.$e conf -state normal | 
 | 	$patchtop.$e delete 0 end | 
 | 	$patchtop.$e insert 0 $v | 
 | 	$patchtop.$e conf -state readonly | 
 |     } | 
 | } | 
 |  | 
 | proc mkpatchgo {} { | 
 |     global patchtop nullid nullid2 | 
 |  | 
 |     set oldid [$patchtop.fromsha1 get] | 
 |     set newid [$patchtop.tosha1 get] | 
 |     set fname [$patchtop.fname get] | 
 |     set cmd [diffcmd [list $oldid $newid] -p] | 
 |     lappend cmd >$fname & | 
 |     if {[catch {eval exec $cmd} err]} { | 
 | 	error_popup "Error creating patch: $err" | 
 |     } | 
 |     catch {destroy $patchtop} | 
 |     unset patchtop | 
 | } | 
 |  | 
 | proc mkpatchcan {} { | 
 |     global patchtop | 
 |  | 
 |     catch {destroy $patchtop} | 
 |     unset patchtop | 
 | } | 
 |  | 
 | proc mktag {} { | 
 |     global rowmenuid mktagtop commitinfo | 
 |  | 
 |     set top .maketag | 
 |     set mktagtop $top | 
 |     catch {destroy $top} | 
 |     toplevel $top | 
 |     label $top.title -text "Create tag" | 
 |     grid $top.title - -pady 10 | 
 |     label $top.id -text "ID:" | 
 |     entry $top.sha1 -width 40 -relief flat | 
 |     $top.sha1 insert 0 $rowmenuid | 
 |     $top.sha1 conf -state readonly | 
 |     grid $top.id $top.sha1 -sticky w | 
 |     entry $top.head -width 60 -relief flat | 
 |     $top.head insert 0 [lindex $commitinfo($rowmenuid) 0] | 
 |     $top.head conf -state readonly | 
 |     grid x $top.head -sticky w | 
 |     label $top.tlab -text "Tag name:" | 
 |     entry $top.tag -width 60 | 
 |     grid $top.tlab $top.tag -sticky w | 
 |     frame $top.buts | 
 |     button $top.buts.gen -text "Create" -command mktaggo | 
 |     button $top.buts.can -text "Cancel" -command mktagcan | 
 |     grid $top.buts.gen $top.buts.can | 
 |     grid columnconfigure $top.buts 0 -weight 1 -uniform a | 
 |     grid columnconfigure $top.buts 1 -weight 1 -uniform a | 
 |     grid $top.buts - -pady 10 -sticky ew | 
 |     focus $top.tag | 
 | } | 
 |  | 
 | proc domktag {} { | 
 |     global mktagtop env tagids idtags | 
 |  | 
 |     set id [$mktagtop.sha1 get] | 
 |     set tag [$mktagtop.tag get] | 
 |     if {$tag == {}} { | 
 | 	error_popup "No tag name specified" | 
 | 	return | 
 |     } | 
 |     if {[info exists tagids($tag)]} { | 
 | 	error_popup "Tag \"$tag\" already exists" | 
 | 	return | 
 |     } | 
 |     if {[catch { | 
 | 	set dir [gitdir] | 
 | 	set fname [file join $dir "refs/tags" $tag] | 
 | 	set f [open $fname w] | 
 | 	puts $f $id | 
 | 	close $f | 
 |     } err]} { | 
 | 	error_popup "Error creating tag: $err" | 
 | 	return | 
 |     } | 
 |  | 
 |     set tagids($tag) $id | 
 |     lappend idtags($id) $tag | 
 |     redrawtags $id | 
 |     addedtag $id | 
 |     dispneartags 0 | 
 |     run refill_reflist | 
 | } | 
 |  | 
 | proc redrawtags {id} { | 
 |     global canv linehtag commitrow idpos selectedline curview | 
 |     global mainfont canvxmax iddrawn | 
 |  | 
 |     if {![info exists commitrow($curview,$id)]} return | 
 |     if {![info exists iddrawn($id)]} return | 
 |     drawcommits $commitrow($curview,$id) | 
 |     $canv delete tag.$id | 
 |     set xt [eval drawtags $id $idpos($id)] | 
 |     $canv coords $linehtag($commitrow($curview,$id)) $xt [lindex $idpos($id) 2] | 
 |     set text [$canv itemcget $linehtag($commitrow($curview,$id)) -text] | 
 |     set xr [expr {$xt + [font measure $mainfont $text]}] | 
 |     if {$xr > $canvxmax} { | 
 | 	set canvxmax $xr | 
 | 	setcanvscroll | 
 |     } | 
 |     if {[info exists selectedline] | 
 | 	&& $selectedline == $commitrow($curview,$id)} { | 
 | 	selectline $selectedline 0 | 
 |     } | 
 | } | 
 |  | 
 | proc mktagcan {} { | 
 |     global mktagtop | 
 |  | 
 |     catch {destroy $mktagtop} | 
 |     unset mktagtop | 
 | } | 
 |  | 
 | proc mktaggo {} { | 
 |     domktag | 
 |     mktagcan | 
 | } | 
 |  | 
 | proc writecommit {} { | 
 |     global rowmenuid wrcomtop commitinfo wrcomcmd | 
 |  | 
 |     set top .writecommit | 
 |     set wrcomtop $top | 
 |     catch {destroy $top} | 
 |     toplevel $top | 
 |     label $top.title -text "Write commit to file" | 
 |     grid $top.title - -pady 10 | 
 |     label $top.id -text "ID:" | 
 |     entry $top.sha1 -width 40 -relief flat | 
 |     $top.sha1 insert 0 $rowmenuid | 
 |     $top.sha1 conf -state readonly | 
 |     grid $top.id $top.sha1 -sticky w | 
 |     entry $top.head -width 60 -relief flat | 
 |     $top.head insert 0 [lindex $commitinfo($rowmenuid) 0] | 
 |     $top.head conf -state readonly | 
 |     grid x $top.head -sticky w | 
 |     label $top.clab -text "Command:" | 
 |     entry $top.cmd -width 60 -textvariable wrcomcmd | 
 |     grid $top.clab $top.cmd -sticky w -pady 10 | 
 |     label $top.flab -text "Output file:" | 
 |     entry $top.fname -width 60 | 
 |     $top.fname insert 0 [file normalize "commit-[string range $rowmenuid 0 6]"] | 
 |     grid $top.flab $top.fname -sticky w | 
 |     frame $top.buts | 
 |     button $top.buts.gen -text "Write" -command wrcomgo | 
 |     button $top.buts.can -text "Cancel" -command wrcomcan | 
 |     grid $top.buts.gen $top.buts.can | 
 |     grid columnconfigure $top.buts 0 -weight 1 -uniform a | 
 |     grid columnconfigure $top.buts 1 -weight 1 -uniform a | 
 |     grid $top.buts - -pady 10 -sticky ew | 
 |     focus $top.fname | 
 | } | 
 |  | 
 | proc wrcomgo {} { | 
 |     global wrcomtop | 
 |  | 
 |     set id [$wrcomtop.sha1 get] | 
 |     set cmd "echo $id | [$wrcomtop.cmd get]" | 
 |     set fname [$wrcomtop.fname get] | 
 |     if {[catch {exec sh -c $cmd >$fname &} err]} { | 
 | 	error_popup "Error writing commit: $err" | 
 |     } | 
 |     catch {destroy $wrcomtop} | 
 |     unset wrcomtop | 
 | } | 
 |  | 
 | proc wrcomcan {} { | 
 |     global wrcomtop | 
 |  | 
 |     catch {destroy $wrcomtop} | 
 |     unset wrcomtop | 
 | } | 
 |  | 
 | proc mkbranch {} { | 
 |     global rowmenuid mkbrtop | 
 |  | 
 |     set top .makebranch | 
 |     catch {destroy $top} | 
 |     toplevel $top | 
 |     label $top.title -text "Create new branch" | 
 |     grid $top.title - -pady 10 | 
 |     label $top.id -text "ID:" | 
 |     entry $top.sha1 -width 40 -relief flat | 
 |     $top.sha1 insert 0 $rowmenuid | 
 |     $top.sha1 conf -state readonly | 
 |     grid $top.id $top.sha1 -sticky w | 
 |     label $top.nlab -text "Name:" | 
 |     entry $top.name -width 40 | 
 |     grid $top.nlab $top.name -sticky w | 
 |     frame $top.buts | 
 |     button $top.buts.go -text "Create" -command [list mkbrgo $top] | 
 |     button $top.buts.can -text "Cancel" -command "catch {destroy $top}" | 
 |     grid $top.buts.go $top.buts.can | 
 |     grid columnconfigure $top.buts 0 -weight 1 -uniform a | 
 |     grid columnconfigure $top.buts 1 -weight 1 -uniform a | 
 |     grid $top.buts - -pady 10 -sticky ew | 
 |     focus $top.name | 
 | } | 
 |  | 
 | proc mkbrgo {top} { | 
 |     global headids idheads | 
 |  | 
 |     set name [$top.name get] | 
 |     set id [$top.sha1 get] | 
 |     if {$name eq {}} { | 
 | 	error_popup "Please specify a name for the new branch" | 
 | 	return | 
 |     } | 
 |     catch {destroy $top} | 
 |     nowbusy newbranch | 
 |     update | 
 |     if {[catch { | 
 | 	exec git branch $name $id | 
 |     } err]} { | 
 | 	notbusy newbranch | 
 | 	error_popup $err | 
 |     } else { | 
 | 	set headids($name) $id | 
 | 	lappend idheads($id) $name | 
 | 	addedhead $id $name | 
 | 	notbusy newbranch | 
 | 	redrawtags $id | 
 | 	dispneartags 0 | 
 | 	run refill_reflist | 
 |     } | 
 | } | 
 |  | 
 | proc cherrypick {} { | 
 |     global rowmenuid curview commitrow | 
 |     global mainhead | 
 |  | 
 |     set oldhead [exec git rev-parse HEAD] | 
 |     set dheads [descheads $rowmenuid] | 
 |     if {$dheads ne {} && [lsearch -exact $dheads $oldhead] >= 0} { | 
 | 	set ok [confirm_popup "Commit [string range $rowmenuid 0 7] is already\ | 
 | 			included in branch $mainhead -- really re-apply it?"] | 
 | 	if {!$ok} return | 
 |     } | 
 |     nowbusy cherrypick | 
 |     update | 
 |     # Unfortunately git-cherry-pick writes stuff to stderr even when | 
 |     # no error occurs, and exec takes that as an indication of error... | 
 |     if {[catch {exec sh -c "git cherry-pick -r $rowmenuid 2>&1"} err]} { | 
 | 	notbusy cherrypick | 
 | 	error_popup $err | 
 | 	return | 
 |     } | 
 |     set newhead [exec git rev-parse HEAD] | 
 |     if {$newhead eq $oldhead} { | 
 | 	notbusy cherrypick | 
 | 	error_popup "No changes committed" | 
 | 	return | 
 |     } | 
 |     addnewchild $newhead $oldhead | 
 |     if {[info exists commitrow($curview,$oldhead)]} { | 
 | 	insertrow $commitrow($curview,$oldhead) $newhead | 
 | 	if {$mainhead ne {}} { | 
 | 	    movehead $newhead $mainhead | 
 | 	    movedhead $newhead $mainhead | 
 | 	} | 
 | 	redrawtags $oldhead | 
 | 	redrawtags $newhead | 
 |     } | 
 |     notbusy cherrypick | 
 | } | 
 |  | 
 | proc resethead {} { | 
 |     global mainheadid mainhead rowmenuid confirm_ok resettype | 
 |     global showlocalchanges | 
 |  | 
 |     set confirm_ok 0 | 
 |     set w ".confirmreset" | 
 |     toplevel $w | 
 |     wm transient $w . | 
 |     wm title $w "Confirm reset" | 
 |     message $w.m -text \ | 
 | 	"Reset branch $mainhead to [string range $rowmenuid 0 7]?" \ | 
 | 	-justify center -aspect 1000 | 
 |     pack $w.m -side top -fill x -padx 20 -pady 20 | 
 |     frame $w.f -relief sunken -border 2 | 
 |     message $w.f.rt -text "Reset type:" -aspect 1000 | 
 |     grid $w.f.rt -sticky w | 
 |     set resettype mixed | 
 |     radiobutton $w.f.soft -value soft -variable resettype -justify left \ | 
 | 	-text "Soft: Leave working tree and index untouched" | 
 |     grid $w.f.soft -sticky w | 
 |     radiobutton $w.f.mixed -value mixed -variable resettype -justify left \ | 
 | 	-text "Mixed: Leave working tree untouched, reset index" | 
 |     grid $w.f.mixed -sticky w | 
 |     radiobutton $w.f.hard -value hard -variable resettype -justify left \ | 
 | 	-text "Hard: Reset working tree and index\n(discard ALL local changes)" | 
 |     grid $w.f.hard -sticky w | 
 |     pack $w.f -side top -fill x | 
 |     button $w.ok -text OK -command "set confirm_ok 1; destroy $w" | 
 |     pack $w.ok -side left -fill x -padx 20 -pady 20 | 
 |     button $w.cancel -text Cancel -command "destroy $w" | 
 |     pack $w.cancel -side right -fill x -padx 20 -pady 20 | 
 |     bind $w <Visibility> "grab $w; focus $w" | 
 |     tkwait window $w | 
 |     if {!$confirm_ok} return | 
 |     if {[catch {set fd [open \ | 
 | 	    [list | sh -c "git reset --$resettype $rowmenuid 2>&1"] r]} err]} { | 
 | 	error_popup $err | 
 |     } else { | 
 | 	dohidelocalchanges | 
 | 	set w ".resetprogress" | 
 | 	filerun $fd [list readresetstat $fd $w] | 
 | 	toplevel $w | 
 | 	wm transient $w | 
 | 	wm title $w "Reset progress" | 
 | 	message $w.m -text "Reset in progress, please wait..." \ | 
 | 	    -justify center -aspect 1000 | 
 | 	pack $w.m -side top -fill x -padx 20 -pady 5 | 
 | 	canvas $w.c -width 150 -height 20 -bg white | 
 | 	$w.c create rect 0 0 0 20 -fill green -tags rect | 
 | 	pack $w.c -side top -fill x -padx 20 -pady 5 -expand 1 | 
 | 	nowbusy reset | 
 |     } | 
 | } | 
 |  | 
 | proc readresetstat {fd w} { | 
 |     global mainhead mainheadid showlocalchanges | 
 |  | 
 |     if {[gets $fd line] >= 0} { | 
 | 	if {[regexp {([0-9]+)% \(([0-9]+)/([0-9]+)\)} $line match p m n]} { | 
 | 	    set x [expr {($m * 150) / $n}] | 
 | 	    $w.c coords rect 0 0 $x 20 | 
 | 	} | 
 | 	return 1 | 
 |     } | 
 |     destroy $w | 
 |     notbusy reset | 
 |     if {[catch {close $fd} err]} { | 
 | 	error_popup $err | 
 |     } | 
 |     set oldhead $mainheadid | 
 |     set newhead [exec git rev-parse HEAD] | 
 |     if {$newhead ne $oldhead} { | 
 | 	movehead $newhead $mainhead | 
 | 	movedhead $newhead $mainhead | 
 | 	set mainheadid $newhead | 
 | 	redrawtags $oldhead | 
 | 	redrawtags $newhead | 
 |     } | 
 |     if {$showlocalchanges} { | 
 | 	doshowlocalchanges | 
 |     } | 
 |     return 0 | 
 | } | 
 |  | 
 | # context menu for a head | 
 | proc headmenu {x y id head} { | 
 |     global headmenuid headmenuhead headctxmenu mainhead | 
 |  | 
 |     set headmenuid $id | 
 |     set headmenuhead $head | 
 |     set state normal | 
 |     if {$head eq $mainhead} { | 
 | 	set state disabled | 
 |     } | 
 |     $headctxmenu entryconfigure 0 -state $state | 
 |     $headctxmenu entryconfigure 1 -state $state | 
 |     tk_popup $headctxmenu $x $y | 
 | } | 
 |  | 
 | proc cobranch {} { | 
 |     global headmenuid headmenuhead mainhead headids | 
 |     global showlocalchanges mainheadid | 
 |  | 
 |     # check the tree is clean first?? | 
 |     set oldmainhead $mainhead | 
 |     nowbusy checkout | 
 |     update | 
 |     dohidelocalchanges | 
 |     if {[catch { | 
 | 	exec git checkout -q $headmenuhead | 
 |     } err]} { | 
 | 	notbusy checkout | 
 | 	error_popup $err | 
 |     } else { | 
 | 	notbusy checkout | 
 | 	set mainhead $headmenuhead | 
 | 	set mainheadid $headmenuid | 
 | 	if {[info exists headids($oldmainhead)]} { | 
 | 	    redrawtags $headids($oldmainhead) | 
 | 	} | 
 | 	redrawtags $headmenuid | 
 |     } | 
 |     if {$showlocalchanges} { | 
 | 	dodiffindex | 
 |     } | 
 | } | 
 |  | 
 | proc rmbranch {} { | 
 |     global headmenuid headmenuhead mainhead | 
 |     global idheads | 
 |  | 
 |     set head $headmenuhead | 
 |     set id $headmenuid | 
 |     # this check shouldn't be needed any more... | 
 |     if {$head eq $mainhead} { | 
 | 	error_popup "Cannot delete the currently checked-out branch" | 
 | 	return | 
 |     } | 
 |     set dheads [descheads $id] | 
 |     if {[llength $dheads] == 1 && $idheads($dheads) eq $head} { | 
 | 	# the stuff on this branch isn't on any other branch | 
 | 	if {![confirm_popup "The commits on branch $head aren't on any other\ | 
 | 			branch.\nReally delete branch $head?"]} return | 
 |     } | 
 |     nowbusy rmbranch | 
 |     update | 
 |     if {[catch {exec git branch -D $head} err]} { | 
 | 	notbusy rmbranch | 
 | 	error_popup $err | 
 | 	return | 
 |     } | 
 |     removehead $id $head | 
 |     removedhead $id $head | 
 |     redrawtags $id | 
 |     notbusy rmbranch | 
 |     dispneartags 0 | 
 |     run refill_reflist | 
 | } | 
 |  | 
 | # Display a list of tags and heads | 
 | proc showrefs {} { | 
 |     global showrefstop bgcolor fgcolor selectbgcolor mainfont | 
 |     global bglist fglist uifont reflistfilter reflist maincursor | 
 |  | 
 |     set top .showrefs | 
 |     set showrefstop $top | 
 |     if {[winfo exists $top]} { | 
 | 	raise $top | 
 | 	refill_reflist | 
 | 	return | 
 |     } | 
 |     toplevel $top | 
 |     wm title $top "Tags and heads: [file tail [pwd]]" | 
 |     text $top.list -background $bgcolor -foreground $fgcolor \ | 
 | 	-selectbackground $selectbgcolor -font $mainfont \ | 
 | 	-xscrollcommand "$top.xsb set" -yscrollcommand "$top.ysb set" \ | 
 | 	-width 30 -height 20 -cursor $maincursor \ | 
 | 	-spacing1 1 -spacing3 1 -state disabled | 
 |     $top.list tag configure highlight -background $selectbgcolor | 
 |     lappend bglist $top.list | 
 |     lappend fglist $top.list | 
 |     scrollbar $top.ysb -command "$top.list yview" -orient vertical | 
 |     scrollbar $top.xsb -command "$top.list xview" -orient horizontal | 
 |     grid $top.list $top.ysb -sticky nsew | 
 |     grid $top.xsb x -sticky ew | 
 |     frame $top.f | 
 |     label $top.f.l -text "Filter: " -font $uifont | 
 |     entry $top.f.e -width 20 -textvariable reflistfilter -font $uifont | 
 |     set reflistfilter "*" | 
 |     trace add variable reflistfilter write reflistfilter_change | 
 |     pack $top.f.e -side right -fill x -expand 1 | 
 |     pack $top.f.l -side left | 
 |     grid $top.f - -sticky ew -pady 2 | 
 |     button $top.close -command [list destroy $top] -text "Close" \ | 
 | 	-font $uifont | 
 |     grid $top.close - | 
 |     grid columnconfigure $top 0 -weight 1 | 
 |     grid rowconfigure $top 0 -weight 1 | 
 |     bind $top.list <1> {break} | 
 |     bind $top.list <B1-Motion> {break} | 
 |     bind $top.list <ButtonRelease-1> {sel_reflist %W %x %y; break} | 
 |     set reflist {} | 
 |     refill_reflist | 
 | } | 
 |  | 
 | proc sel_reflist {w x y} { | 
 |     global showrefstop reflist headids tagids otherrefids | 
 |  | 
 |     if {![winfo exists $showrefstop]} return | 
 |     set l [lindex [split [$w index "@$x,$y"] "."] 0] | 
 |     set ref [lindex $reflist [expr {$l-1}]] | 
 |     set n [lindex $ref 0] | 
 |     switch -- [lindex $ref 1] { | 
 | 	"H" {selbyid $headids($n)} | 
 | 	"T" {selbyid $tagids($n)} | 
 | 	"o" {selbyid $otherrefids($n)} | 
 |     } | 
 |     $showrefstop.list tag add highlight $l.0 "$l.0 lineend" | 
 | } | 
 |  | 
 | proc unsel_reflist {} { | 
 |     global showrefstop | 
 |  | 
 |     if {![info exists showrefstop] || ![winfo exists $showrefstop]} return | 
 |     $showrefstop.list tag remove highlight 0.0 end | 
 | } | 
 |  | 
 | proc reflistfilter_change {n1 n2 op} { | 
 |     global reflistfilter | 
 |  | 
 |     after cancel refill_reflist | 
 |     after 200 refill_reflist | 
 | } | 
 |  | 
 | proc refill_reflist {} { | 
 |     global reflist reflistfilter showrefstop headids tagids otherrefids | 
 |     global commitrow curview commitinterest | 
 |  | 
 |     if {![info exists showrefstop] || ![winfo exists $showrefstop]} return | 
 |     set refs {} | 
 |     foreach n [array names headids] { | 
 | 	if {[string match $reflistfilter $n]} { | 
 | 	    if {[info exists commitrow($curview,$headids($n))]} { | 
 | 		lappend refs [list $n H] | 
 | 	    } else { | 
 | 		set commitinterest($headids($n)) {run refill_reflist} | 
 | 	    } | 
 | 	} | 
 |     } | 
 |     foreach n [array names tagids] { | 
 | 	if {[string match $reflistfilter $n]} { | 
 | 	    if {[info exists commitrow($curview,$tagids($n))]} { | 
 | 		lappend refs [list $n T] | 
 | 	    } else { | 
 | 		set commitinterest($tagids($n)) {run refill_reflist} | 
 | 	    } | 
 | 	} | 
 |     } | 
 |     foreach n [array names otherrefids] { | 
 | 	if {[string match $reflistfilter $n]} { | 
 | 	    if {[info exists commitrow($curview,$otherrefids($n))]} { | 
 | 		lappend refs [list $n o] | 
 | 	    } else { | 
 | 		set commitinterest($otherrefids($n)) {run refill_reflist} | 
 | 	    } | 
 | 	} | 
 |     } | 
 |     set refs [lsort -index 0 $refs] | 
 |     if {$refs eq $reflist} return | 
 |  | 
 |     # Update the contents of $showrefstop.list according to the | 
 |     # differences between $reflist (old) and $refs (new) | 
 |     $showrefstop.list conf -state normal | 
 |     $showrefstop.list insert end "\n" | 
 |     set i 0 | 
 |     set j 0 | 
 |     while {$i < [llength $reflist] || $j < [llength $refs]} { | 
 | 	if {$i < [llength $reflist]} { | 
 | 	    if {$j < [llength $refs]} { | 
 | 		set cmp [string compare [lindex $reflist $i 0] \ | 
 | 			     [lindex $refs $j 0]] | 
 | 		if {$cmp == 0} { | 
 | 		    set cmp [string compare [lindex $reflist $i 1] \ | 
 | 				 [lindex $refs $j 1]] | 
 | 		} | 
 | 	    } else { | 
 | 		set cmp -1 | 
 | 	    } | 
 | 	} else { | 
 | 	    set cmp 1 | 
 | 	} | 
 | 	switch -- $cmp { | 
 | 	    -1 { | 
 | 		$showrefstop.list delete "[expr {$j+1}].0" "[expr {$j+2}].0" | 
 | 		incr i | 
 | 	    } | 
 | 	    0 { | 
 | 		incr i | 
 | 		incr j | 
 | 	    } | 
 | 	    1 { | 
 | 		set l [expr {$j + 1}] | 
 | 		$showrefstop.list image create $l.0 -align baseline \ | 
 | 		    -image reficon-[lindex $refs $j 1] -padx 2 | 
 | 		$showrefstop.list insert $l.1 "[lindex $refs $j 0]\n" | 
 | 		incr j | 
 | 	    } | 
 | 	} | 
 |     } | 
 |     set reflist $refs | 
 |     # delete last newline | 
 |     $showrefstop.list delete end-2c end-1c | 
 |     $showrefstop.list conf -state disabled | 
 | } | 
 |  | 
 | # Stuff for finding nearby tags | 
 | proc getallcommits {} { | 
 |     global allcommits allids nbmp nextarc seeds | 
 |  | 
 |     if {![info exists allcommits]} { | 
 | 	set allids {} | 
 | 	set nbmp 0 | 
 | 	set nextarc 0 | 
 | 	set allcommits 0 | 
 | 	set seeds {} | 
 |     } | 
 |  | 
 |     set cmd [concat | git rev-list --all --parents] | 
 |     foreach id $seeds { | 
 | 	lappend cmd "^$id" | 
 |     } | 
 |     set fd [open $cmd r] | 
 |     fconfigure $fd -blocking 0 | 
 |     incr allcommits | 
 |     nowbusy allcommits | 
 |     filerun $fd [list getallclines $fd] | 
 | } | 
 |  | 
 | # Since most commits have 1 parent and 1 child, we group strings of | 
 | # such commits into "arcs" joining branch/merge points (BMPs), which | 
 | # are commits that either don't have 1 parent or don't have 1 child. | 
 | # | 
 | # arcnos(id) - incoming arcs for BMP, arc we're on for other nodes | 
 | # arcout(id) - outgoing arcs for BMP | 
 | # arcids(a) - list of IDs on arc including end but not start | 
 | # arcstart(a) - BMP ID at start of arc | 
 | # arcend(a) - BMP ID at end of arc | 
 | # growing(a) - arc a is still growing | 
 | # arctags(a) - IDs out of arcids (excluding end) that have tags | 
 | # archeads(a) - IDs out of arcids (excluding end) that have heads | 
 | # The start of an arc is at the descendent end, so "incoming" means | 
 | # coming from descendents, and "outgoing" means going towards ancestors. | 
 |  | 
 | proc getallclines {fd} { | 
 |     global allids allparents allchildren idtags idheads nextarc nbmp | 
 |     global arcnos arcids arctags arcout arcend arcstart archeads growing | 
 |     global seeds allcommits | 
 |  | 
 |     set nid 0 | 
 |     while {[incr nid] <= 1000 && [gets $fd line] >= 0} { | 
 | 	set id [lindex $line 0] | 
 | 	if {[info exists allparents($id)]} { | 
 | 	    # seen it already | 
 | 	    continue | 
 | 	} | 
 | 	lappend allids $id | 
 | 	set olds [lrange $line 1 end] | 
 | 	set allparents($id) $olds | 
 | 	if {![info exists allchildren($id)]} { | 
 | 	    set allchildren($id) {} | 
 | 	    set arcnos($id) {} | 
 | 	    lappend seeds $id | 
 | 	} else { | 
 | 	    set a $arcnos($id) | 
 | 	    if {[llength $olds] == 1 && [llength $a] == 1} { | 
 | 		lappend arcids($a) $id | 
 | 		if {[info exists idtags($id)]} { | 
 | 		    lappend arctags($a) $id | 
 | 		} | 
 | 		if {[info exists idheads($id)]} { | 
 | 		    lappend archeads($a) $id | 
 | 		} | 
 | 		if {[info exists allparents($olds)]} { | 
 | 		    # seen parent already | 
 | 		    if {![info exists arcout($olds)]} { | 
 | 			splitarc $olds | 
 | 		    } | 
 | 		    lappend arcids($a) $olds | 
 | 		    set arcend($a) $olds | 
 | 		    unset growing($a) | 
 | 		} | 
 | 		lappend allchildren($olds) $id | 
 | 		lappend arcnos($olds) $a | 
 | 		continue | 
 | 	    } | 
 | 	} | 
 | 	incr nbmp | 
 | 	foreach a $arcnos($id) { | 
 | 	    lappend arcids($a) $id | 
 | 	    set arcend($a) $id | 
 | 	    unset growing($a) | 
 | 	} | 
 |  | 
 | 	set ao {} | 
 | 	foreach p $olds { | 
 | 	    lappend allchildren($p) $id | 
 | 	    set a [incr nextarc] | 
 | 	    set arcstart($a) $id | 
 | 	    set archeads($a) {} | 
 | 	    set arctags($a) {} | 
 | 	    set archeads($a) {} | 
 | 	    set arcids($a) {} | 
 | 	    lappend ao $a | 
 | 	    set growing($a) 1 | 
 | 	    if {[info exists allparents($p)]} { | 
 | 		# seen it already, may need to make a new branch | 
 | 		if {![info exists arcout($p)]} { | 
 | 		    splitarc $p | 
 | 		} | 
 | 		lappend arcids($a) $p | 
 | 		set arcend($a) $p | 
 | 		unset growing($a) | 
 | 	    } | 
 | 	    lappend arcnos($p) $a | 
 | 	} | 
 | 	set arcout($id) $ao | 
 |     } | 
 |     if {$nid > 0} { | 
 | 	global cached_dheads cached_dtags cached_atags | 
 | 	catch {unset cached_dheads} | 
 | 	catch {unset cached_dtags} | 
 | 	catch {unset cached_atags} | 
 |     } | 
 |     if {![eof $fd]} { | 
 | 	return [expr {$nid >= 1000? 2: 1}] | 
 |     } | 
 |     close $fd | 
 |     if {[incr allcommits -1] == 0} { | 
 | 	notbusy allcommits | 
 |     } | 
 |     dispneartags 0 | 
 |     return 0 | 
 | } | 
 |  | 
 | proc recalcarc {a} { | 
 |     global arctags archeads arcids idtags idheads | 
 |  | 
 |     set at {} | 
 |     set ah {} | 
 |     foreach id [lrange $arcids($a) 0 end-1] { | 
 | 	if {[info exists idtags($id)]} { | 
 | 	    lappend at $id | 
 | 	} | 
 | 	if {[info exists idheads($id)]} { | 
 | 	    lappend ah $id | 
 | 	} | 
 |     } | 
 |     set arctags($a) $at | 
 |     set archeads($a) $ah | 
 | } | 
 |  | 
 | proc splitarc {p} { | 
 |     global arcnos arcids nextarc nbmp arctags archeads idtags idheads | 
 |     global arcstart arcend arcout allparents growing | 
 |  | 
 |     set a $arcnos($p) | 
 |     if {[llength $a] != 1} { | 
 | 	puts "oops splitarc called but [llength $a] arcs already" | 
 | 	return | 
 |     } | 
 |     set a [lindex $a 0] | 
 |     set i [lsearch -exact $arcids($a) $p] | 
 |     if {$i < 0} { | 
 | 	puts "oops splitarc $p not in arc $a" | 
 | 	return | 
 |     } | 
 |     set na [incr nextarc] | 
 |     if {[info exists arcend($a)]} { | 
 | 	set arcend($na) $arcend($a) | 
 |     } else { | 
 | 	set l [lindex $allparents([lindex $arcids($a) end]) 0] | 
 | 	set j [lsearch -exact $arcnos($l) $a] | 
 | 	set arcnos($l) [lreplace $arcnos($l) $j $j $na] | 
 |     } | 
 |     set tail [lrange $arcids($a) [expr {$i+1}] end] | 
 |     set arcids($a) [lrange $arcids($a) 0 $i] | 
 |     set arcend($a) $p | 
 |     set arcstart($na) $p | 
 |     set arcout($p) $na | 
 |     set arcids($na) $tail | 
 |     if {[info exists growing($a)]} { | 
 | 	set growing($na) 1 | 
 | 	unset growing($a) | 
 |     } | 
 |     incr nbmp | 
 |  | 
 |     foreach id $tail { | 
 | 	if {[llength $arcnos($id)] == 1} { | 
 | 	    set arcnos($id) $na | 
 | 	} else { | 
 | 	    set j [lsearch -exact $arcnos($id) $a] | 
 | 	    set arcnos($id) [lreplace $arcnos($id) $j $j $na] | 
 | 	} | 
 |     } | 
 |  | 
 |     # reconstruct tags and heads lists | 
 |     if {$arctags($a) ne {} || $archeads($a) ne {}} { | 
 | 	recalcarc $a | 
 | 	recalcarc $na | 
 |     } else { | 
 | 	set arctags($na) {} | 
 | 	set archeads($na) {} | 
 |     } | 
 | } | 
 |  | 
 | # Update things for a new commit added that is a child of one | 
 | # existing commit.  Used when cherry-picking. | 
 | proc addnewchild {id p} { | 
 |     global allids allparents allchildren idtags nextarc nbmp | 
 |     global arcnos arcids arctags arcout arcend arcstart archeads growing | 
 |     global seeds allcommits | 
 |  | 
 |     if {![info exists allcommits]} return | 
 |     lappend allids $id | 
 |     set allparents($id) [list $p] | 
 |     set allchildren($id) {} | 
 |     set arcnos($id) {} | 
 |     lappend seeds $id | 
 |     incr nbmp | 
 |     lappend allchildren($p) $id | 
 |     set a [incr nextarc] | 
 |     set arcstart($a) $id | 
 |     set archeads($a) {} | 
 |     set arctags($a) {} | 
 |     set arcids($a) [list $p] | 
 |     set arcend($a) $p | 
 |     if {![info exists arcout($p)]} { | 
 | 	splitarc $p | 
 |     } | 
 |     lappend arcnos($p) $a | 
 |     set arcout($id) [list $a] | 
 | } | 
 |  | 
 | # Returns 1 if a is an ancestor of b, -1 if b is an ancestor of a, | 
 | # or 0 if neither is true. | 
 | proc anc_or_desc {a b} { | 
 |     global arcout arcstart arcend arcnos cached_isanc | 
 |  | 
 |     if {$arcnos($a) eq $arcnos($b)} { | 
 | 	# Both are on the same arc(s); either both are the same BMP, | 
 | 	# or if one is not a BMP, the other is also not a BMP or is | 
 | 	# the BMP at end of the arc (and it only has 1 incoming arc). | 
 | 	# Or both can be BMPs with no incoming arcs. | 
 | 	if {$a eq $b || $arcnos($a) eq {}} { | 
 | 	    return 0 | 
 | 	} | 
 | 	# assert {[llength $arcnos($a)] == 1} | 
 | 	set arc [lindex $arcnos($a) 0] | 
 | 	set i [lsearch -exact $arcids($arc) $a] | 
 | 	set j [lsearch -exact $arcids($arc) $b] | 
 | 	if {$i < 0 || $i > $j} { | 
 | 	    return 1 | 
 | 	} else { | 
 | 	    return -1 | 
 | 	} | 
 |     } | 
 |  | 
 |     if {![info exists arcout($a)]} { | 
 | 	set arc [lindex $arcnos($a) 0] | 
 | 	if {[info exists arcend($arc)]} { | 
 | 	    set aend $arcend($arc) | 
 | 	} else { | 
 | 	    set aend {} | 
 | 	} | 
 | 	set a $arcstart($arc) | 
 |     } else { | 
 | 	set aend $a | 
 |     } | 
 |     if {![info exists arcout($b)]} { | 
 | 	set arc [lindex $arcnos($b) 0] | 
 | 	if {[info exists arcend($arc)]} { | 
 | 	    set bend $arcend($arc) | 
 | 	} else { | 
 | 	    set bend {} | 
 | 	} | 
 | 	set b $arcstart($arc) | 
 |     } else { | 
 | 	set bend $b | 
 |     } | 
 |     if {$a eq $bend} { | 
 | 	return 1 | 
 |     } | 
 |     if {$b eq $aend} { | 
 | 	return -1 | 
 |     } | 
 |     if {[info exists cached_isanc($a,$bend)]} { | 
 | 	if {$cached_isanc($a,$bend)} { | 
 | 	    return 1 | 
 | 	} | 
 |     } | 
 |     if {[info exists cached_isanc($b,$aend)]} { | 
 | 	if {$cached_isanc($b,$aend)} { | 
 | 	    return -1 | 
 | 	} | 
 | 	if {[info exists cached_isanc($a,$bend)]} { | 
 | 	    return 0 | 
 | 	} | 
 |     } | 
 |  | 
 |     set todo [list $a $b] | 
 |     set anc($a) a | 
 |     set anc($b) b | 
 |     for {set i 0} {$i < [llength $todo]} {incr i} { | 
 | 	set x [lindex $todo $i] | 
 | 	if {$anc($x) eq {}} { | 
 | 	    continue | 
 | 	} | 
 | 	foreach arc $arcnos($x) { | 
 | 	    set xd $arcstart($arc) | 
 | 	    if {$xd eq $bend} { | 
 | 		set cached_isanc($a,$bend) 1 | 
 | 		set cached_isanc($b,$aend) 0 | 
 | 		return 1 | 
 | 	    } elseif {$xd eq $aend} { | 
 | 		set cached_isanc($b,$aend) 1 | 
 | 		set cached_isanc($a,$bend) 0 | 
 | 		return -1 | 
 | 	    } | 
 | 	    if {![info exists anc($xd)]} { | 
 | 		set anc($xd) $anc($x) | 
 | 		lappend todo $xd | 
 | 	    } elseif {$anc($xd) ne $anc($x)} { | 
 | 		set anc($xd) {} | 
 | 	    } | 
 | 	} | 
 |     } | 
 |     set cached_isanc($a,$bend) 0 | 
 |     set cached_isanc($b,$aend) 0 | 
 |     return 0 | 
 | } | 
 |  | 
 | # This identifies whether $desc has an ancestor that is | 
 | # a growing tip of the graph and which is not an ancestor of $anc | 
 | # and returns 0 if so and 1 if not. | 
 | # If we subsequently discover a tag on such a growing tip, and that | 
 | # turns out to be a descendent of $anc (which it could, since we | 
 | # don't necessarily see children before parents), then $desc | 
 | # isn't a good choice to display as a descendent tag of | 
 | # $anc (since it is the descendent of another tag which is | 
 | # a descendent of $anc).  Similarly, $anc isn't a good choice to | 
 | # display as a ancestor tag of $desc. | 
 | # | 
 | proc is_certain {desc anc} { | 
 |     global arcnos arcout arcstart arcend growing problems | 
 |  | 
 |     set certain {} | 
 |     if {[llength $arcnos($anc)] == 1} { | 
 | 	# tags on the same arc are certain | 
 | 	if {$arcnos($desc) eq $arcnos($anc)} { | 
 | 	    return 1 | 
 | 	} | 
 | 	if {![info exists arcout($anc)]} { | 
 | 	    # if $anc is partway along an arc, use the start of the arc instead | 
 | 	    set a [lindex $arcnos($anc) 0] | 
 | 	    set anc $arcstart($a) | 
 | 	} | 
 |     } | 
 |     if {[llength $arcnos($desc)] > 1 || [info exists arcout($desc)]} { | 
 | 	set x $desc | 
 |     } else { | 
 | 	set a [lindex $arcnos($desc) 0] | 
 | 	set x $arcend($a) | 
 |     } | 
 |     if {$x == $anc} { | 
 | 	return 1 | 
 |     } | 
 |     set anclist [list $x] | 
 |     set dl($x) 1 | 
 |     set nnh 1 | 
 |     set ngrowanc 0 | 
 |     for {set i 0} {$i < [llength $anclist] && ($nnh > 0 || $ngrowanc > 0)} {incr i} { | 
 | 	set x [lindex $anclist $i] | 
 | 	if {$dl($x)} { | 
 | 	    incr nnh -1 | 
 | 	} | 
 | 	set done($x) 1 | 
 | 	foreach a $arcout($x) { | 
 | 	    if {[info exists growing($a)]} { | 
 | 		if {![info exists growanc($x)] && $dl($x)} { | 
 | 		    set growanc($x) 1 | 
 | 		    incr ngrowanc | 
 | 		} | 
 | 	    } else { | 
 | 		set y $arcend($a) | 
 | 		if {[info exists dl($y)]} { | 
 | 		    if {$dl($y)} { | 
 | 			if {!$dl($x)} { | 
 | 			    set dl($y) 0 | 
 | 			    if {![info exists done($y)]} { | 
 | 				incr nnh -1 | 
 | 			    } | 
 | 			    if {[info exists growanc($x)]} { | 
 | 				incr ngrowanc -1 | 
 | 			    } | 
 | 			    set xl [list $y] | 
 | 			    for {set k 0} {$k < [llength $xl]} {incr k} { | 
 | 				set z [lindex $xl $k] | 
 | 				foreach c $arcout($z) { | 
 | 				    if {[info exists arcend($c)]} { | 
 | 					set v $arcend($c) | 
 | 					if {[info exists dl($v)] && $dl($v)} { | 
 | 					    set dl($v) 0 | 
 | 					    if {![info exists done($v)]} { | 
 | 						incr nnh -1 | 
 | 					    } | 
 | 					    if {[info exists growanc($v)]} { | 
 | 						incr ngrowanc -1 | 
 | 					    } | 
 | 					    lappend xl $v | 
 | 					} | 
 | 				    } | 
 | 				} | 
 | 			    } | 
 | 			} | 
 | 		    } | 
 | 		} elseif {$y eq $anc || !$dl($x)} { | 
 | 		    set dl($y) 0 | 
 | 		    lappend anclist $y | 
 | 		} else { | 
 | 		    set dl($y) 1 | 
 | 		    lappend anclist $y | 
 | 		    incr nnh | 
 | 		} | 
 | 	    } | 
 | 	} | 
 |     } | 
 |     foreach x [array names growanc] { | 
 | 	if {$dl($x)} { | 
 | 	    return 0 | 
 | 	} | 
 | 	return 0 | 
 |     } | 
 |     return 1 | 
 | } | 
 |  | 
 | proc validate_arctags {a} { | 
 |     global arctags idtags | 
 |  | 
 |     set i -1 | 
 |     set na $arctags($a) | 
 |     foreach id $arctags($a) { | 
 | 	incr i | 
 | 	if {![info exists idtags($id)]} { | 
 | 	    set na [lreplace $na $i $i] | 
 | 	    incr i -1 | 
 | 	} | 
 |     } | 
 |     set arctags($a) $na | 
 | } | 
 |  | 
 | proc validate_archeads {a} { | 
 |     global archeads idheads | 
 |  | 
 |     set i -1 | 
 |     set na $archeads($a) | 
 |     foreach id $archeads($a) { | 
 | 	incr i | 
 | 	if {![info exists idheads($id)]} { | 
 | 	    set na [lreplace $na $i $i] | 
 | 	    incr i -1 | 
 | 	} | 
 |     } | 
 |     set archeads($a) $na | 
 | } | 
 |  | 
 | # Return the list of IDs that have tags that are descendents of id, | 
 | # ignoring IDs that are descendents of IDs already reported. | 
 | proc desctags {id} { | 
 |     global arcnos arcstart arcids arctags idtags allparents | 
 |     global growing cached_dtags | 
 |  | 
 |     if {![info exists allparents($id)]} { | 
 | 	return {} | 
 |     } | 
 |     set t1 [clock clicks -milliseconds] | 
 |     set argid $id | 
 |     if {[llength $arcnos($id)] == 1 && [llength $allparents($id)] == 1} { | 
 | 	# part-way along an arc; check that arc first | 
 | 	set a [lindex $arcnos($id) 0] | 
 | 	if {$arctags($a) ne {}} { | 
 | 	    validate_arctags $a | 
 | 	    set i [lsearch -exact $arcids($a) $id] | 
 | 	    set tid {} | 
 | 	    foreach t $arctags($a) { | 
 | 		set j [lsearch -exact $arcids($a) $t] | 
 | 		if {$j >= $i} break | 
 | 		set tid $t | 
 | 	    } | 
 | 	    if {$tid ne {}} { | 
 | 		return $tid | 
 | 	    } | 
 | 	} | 
 | 	set id $arcstart($a) | 
 | 	if {[info exists idtags($id)]} { | 
 | 	    return $id | 
 | 	} | 
 |     } | 
 |     if {[info exists cached_dtags($id)]} { | 
 | 	return $cached_dtags($id) | 
 |     } | 
 |  | 
 |     set origid $id | 
 |     set todo [list $id] | 
 |     set queued($id) 1 | 
 |     set nc 1 | 
 |     for {set i 0} {$i < [llength $todo] && $nc > 0} {incr i} { | 
 | 	set id [lindex $todo $i] | 
 | 	set done($id) 1 | 
 | 	set ta [info exists hastaggedancestor($id)] | 
 | 	if {!$ta} { | 
 | 	    incr nc -1 | 
 | 	} | 
 | 	# ignore tags on starting node | 
 | 	if {!$ta && $i > 0} { | 
 | 	    if {[info exists idtags($id)]} { | 
 | 		set tagloc($id) $id | 
 | 		set ta 1 | 
 | 	    } elseif {[info exists cached_dtags($id)]} { | 
 | 		set tagloc($id) $cached_dtags($id) | 
 | 		set ta 1 | 
 | 	    } | 
 | 	} | 
 | 	foreach a $arcnos($id) { | 
 | 	    set d $arcstart($a) | 
 | 	    if {!$ta && $arctags($a) ne {}} { | 
 | 		validate_arctags $a | 
 | 		if {$arctags($a) ne {}} { | 
 | 		    lappend tagloc($id) [lindex $arctags($a) end] | 
 | 		} | 
 | 	    } | 
 | 	    if {$ta || $arctags($a) ne {}} { | 
 | 		set tomark [list $d] | 
 | 		for {set j 0} {$j < [llength $tomark]} {incr j} { | 
 | 		    set dd [lindex $tomark $j] | 
 | 		    if {![info exists hastaggedancestor($dd)]} { | 
 | 			if {[info exists done($dd)]} { | 
 | 			    foreach b $arcnos($dd) { | 
 | 				lappend tomark $arcstart($b) | 
 | 			    } | 
 | 			    if {[info exists tagloc($dd)]} { | 
 | 				unset tagloc($dd) | 
 | 			    } | 
 | 			} elseif {[info exists queued($dd)]} { | 
 | 			    incr nc -1 | 
 | 			} | 
 | 			set hastaggedancestor($dd) 1 | 
 | 		    } | 
 | 		} | 
 | 	    } | 
 | 	    if {![info exists queued($d)]} { | 
 | 		lappend todo $d | 
 | 		set queued($d) 1 | 
 | 		if {![info exists hastaggedancestor($d)]} { | 
 | 		    incr nc | 
 | 		} | 
 | 	    } | 
 | 	} | 
 |     } | 
 |     set tags {} | 
 |     foreach id [array names tagloc] { | 
 | 	if {![info exists hastaggedancestor($id)]} { | 
 | 	    foreach t $tagloc($id) { | 
 | 		if {[lsearch -exact $tags $t] < 0} { | 
 | 		    lappend tags $t | 
 | 		} | 
 | 	    } | 
 | 	} | 
 |     } | 
 |     set t2 [clock clicks -milliseconds] | 
 |     set loopix $i | 
 |  | 
 |     # remove tags that are descendents of other tags | 
 |     for {set i 0} {$i < [llength $tags]} {incr i} { | 
 | 	set a [lindex $tags $i] | 
 | 	for {set j 0} {$j < $i} {incr j} { | 
 | 	    set b [lindex $tags $j] | 
 | 	    set r [anc_or_desc $a $b] | 
 | 	    if {$r == 1} { | 
 | 		set tags [lreplace $tags $j $j] | 
 | 		incr j -1 | 
 | 		incr i -1 | 
 | 	    } elseif {$r == -1} { | 
 | 		set tags [lreplace $tags $i $i] | 
 | 		incr i -1 | 
 | 		break | 
 | 	    } | 
 | 	} | 
 |     } | 
 |  | 
 |     if {[array names growing] ne {}} { | 
 | 	# graph isn't finished, need to check if any tag could get | 
 | 	# eclipsed by another tag coming later.  Simply ignore any | 
 | 	# tags that could later get eclipsed. | 
 | 	set ctags {} | 
 | 	foreach t $tags { | 
 | 	    if {[is_certain $t $origid]} { | 
 | 		lappend ctags $t | 
 | 	    } | 
 | 	} | 
 | 	if {$tags eq $ctags} { | 
 | 	    set cached_dtags($origid) $tags | 
 | 	} else { | 
 | 	    set tags $ctags | 
 | 	} | 
 |     } else { | 
 | 	set cached_dtags($origid) $tags | 
 |     } | 
 |     set t3 [clock clicks -milliseconds] | 
 |     if {0 && $t3 - $t1 >= 100} { | 
 | 	puts "iterating descendents ($loopix/[llength $todo] nodes) took\ | 
 |     	    [expr {$t2-$t1}]+[expr {$t3-$t2}]ms, $nc candidates left" | 
 |     } | 
 |     return $tags | 
 | } | 
 |  | 
 | proc anctags {id} { | 
 |     global arcnos arcids arcout arcend arctags idtags allparents | 
 |     global growing cached_atags | 
 |  | 
 |     if {![info exists allparents($id)]} { | 
 | 	return {} | 
 |     } | 
 |     set t1 [clock clicks -milliseconds] | 
 |     set argid $id | 
 |     if {[llength $arcnos($id)] == 1 && [llength $allparents($id)] == 1} { | 
 | 	# part-way along an arc; check that arc first | 
 | 	set a [lindex $arcnos($id) 0] | 
 | 	if {$arctags($a) ne {}} { | 
 | 	    validate_arctags $a | 
 | 	    set i [lsearch -exact $arcids($a) $id] | 
 | 	    foreach t $arctags($a) { | 
 | 		set j [lsearch -exact $arcids($a) $t] | 
 | 		if {$j > $i} { | 
 | 		    return $t | 
 | 		} | 
 | 	    } | 
 | 	} | 
 | 	if {![info exists arcend($a)]} { | 
 | 	    return {} | 
 | 	} | 
 | 	set id $arcend($a) | 
 | 	if {[info exists idtags($id)]} { | 
 | 	    return $id | 
 | 	} | 
 |     } | 
 |     if {[info exists cached_atags($id)]} { | 
 | 	return $cached_atags($id) | 
 |     } | 
 |  | 
 |     set origid $id | 
 |     set todo [list $id] | 
 |     set queued($id) 1 | 
 |     set taglist {} | 
 |     set nc 1 | 
 |     for {set i 0} {$i < [llength $todo] && $nc > 0} {incr i} { | 
 | 	set id [lindex $todo $i] | 
 | 	set done($id) 1 | 
 | 	set td [info exists hastaggeddescendent($id)] | 
 | 	if {!$td} { | 
 | 	    incr nc -1 | 
 | 	} | 
 | 	# ignore tags on starting node | 
 | 	if {!$td && $i > 0} { | 
 | 	    if {[info exists idtags($id)]} { | 
 | 		set tagloc($id) $id | 
 | 		set td 1 | 
 | 	    } elseif {[info exists cached_atags($id)]} { | 
 | 		set tagloc($id) $cached_atags($id) | 
 | 		set td 1 | 
 | 	    } | 
 | 	} | 
 | 	foreach a $arcout($id) { | 
 | 	    if {!$td && $arctags($a) ne {}} { | 
 | 		validate_arctags $a | 
 | 		if {$arctags($a) ne {}} { | 
 | 		    lappend tagloc($id) [lindex $arctags($a) 0] | 
 | 		} | 
 | 	    } | 
 | 	    if {![info exists arcend($a)]} continue | 
 | 	    set d $arcend($a) | 
 | 	    if {$td || $arctags($a) ne {}} { | 
 | 		set tomark [list $d] | 
 | 		for {set j 0} {$j < [llength $tomark]} {incr j} { | 
 | 		    set dd [lindex $tomark $j] | 
 | 		    if {![info exists hastaggeddescendent($dd)]} { | 
 | 			if {[info exists done($dd)]} { | 
 | 			    foreach b $arcout($dd) { | 
 | 				if {[info exists arcend($b)]} { | 
 | 				    lappend tomark $arcend($b) | 
 | 				} | 
 | 			    } | 
 | 			    if {[info exists tagloc($dd)]} { | 
 | 				unset tagloc($dd) | 
 | 			    } | 
 | 			} elseif {[info exists queued($dd)]} { | 
 | 			    incr nc -1 | 
 | 			} | 
 | 			set hastaggeddescendent($dd) 1 | 
 | 		    } | 
 | 		} | 
 | 	    } | 
 | 	    if {![info exists queued($d)]} { | 
 | 		lappend todo $d | 
 | 		set queued($d) 1 | 
 | 		if {![info exists hastaggeddescendent($d)]} { | 
 | 		    incr nc | 
 | 		} | 
 | 	    } | 
 | 	} | 
 |     } | 
 |     set t2 [clock clicks -milliseconds] | 
 |     set loopix $i | 
 |     set tags {} | 
 |     foreach id [array names tagloc] { | 
 | 	if {![info exists hastaggeddescendent($id)]} { | 
 | 	    foreach t $tagloc($id) { | 
 | 		if {[lsearch -exact $tags $t] < 0} { | 
 | 		    lappend tags $t | 
 | 		} | 
 | 	    } | 
 | 	} | 
 |     } | 
 |  | 
 |     # remove tags that are ancestors of other tags | 
 |     for {set i 0} {$i < [llength $tags]} {incr i} { | 
 | 	set a [lindex $tags $i] | 
 | 	for {set j 0} {$j < $i} {incr j} { | 
 | 	    set b [lindex $tags $j] | 
 | 	    set r [anc_or_desc $a $b] | 
 | 	    if {$r == -1} { | 
 | 		set tags [lreplace $tags $j $j] | 
 | 		incr j -1 | 
 | 		incr i -1 | 
 | 	    } elseif {$r == 1} { | 
 | 		set tags [lreplace $tags $i $i] | 
 | 		incr i -1 | 
 | 		break | 
 | 	    } | 
 | 	} | 
 |     } | 
 |  | 
 |     if {[array names growing] ne {}} { | 
 | 	# graph isn't finished, need to check if any tag could get | 
 | 	# eclipsed by another tag coming later.  Simply ignore any | 
 | 	# tags that could later get eclipsed. | 
 | 	set ctags {} | 
 | 	foreach t $tags { | 
 | 	    if {[is_certain $origid $t]} { | 
 | 		lappend ctags $t | 
 | 	    } | 
 | 	} | 
 | 	if {$tags eq $ctags} { | 
 | 	    set cached_atags($origid) $tags | 
 | 	} else { | 
 | 	    set tags $ctags | 
 | 	} | 
 |     } else { | 
 | 	set cached_atags($origid) $tags | 
 |     } | 
 |     set t3 [clock clicks -milliseconds] | 
 |     if {0 && $t3 - $t1 >= 100} { | 
 | 	puts "iterating ancestors ($loopix/[llength $todo] nodes) took\ | 
 |     	    [expr {$t2-$t1}]+[expr {$t3-$t2}]ms, $nc candidates left" | 
 |     } | 
 |     return $tags | 
 | } | 
 |  | 
 | # Return the list of IDs that have heads that are descendents of id, | 
 | # including id itself if it has a head. | 
 | proc descheads {id} { | 
 |     global arcnos arcstart arcids archeads idheads cached_dheads | 
 |     global allparents | 
 |  | 
 |     if {![info exists allparents($id)]} { | 
 | 	return {} | 
 |     } | 
 |     set aret {} | 
 |     if {[llength $arcnos($id)] == 1 && [llength $allparents($id)] == 1} { | 
 | 	# part-way along an arc; check it first | 
 | 	set a [lindex $arcnos($id) 0] | 
 | 	if {$archeads($a) ne {}} { | 
 | 	    validate_archeads $a | 
 | 	    set i [lsearch -exact $arcids($a) $id] | 
 | 	    foreach t $archeads($a) { | 
 | 		set j [lsearch -exact $arcids($a) $t] | 
 | 		if {$j > $i} break | 
 | 		lappend aret $t | 
 | 	    } | 
 | 	} | 
 | 	set id $arcstart($a) | 
 |     } | 
 |     set origid $id | 
 |     set todo [list $id] | 
 |     set seen($id) 1 | 
 |     set ret {} | 
 |     for {set i 0} {$i < [llength $todo]} {incr i} { | 
 | 	set id [lindex $todo $i] | 
 | 	if {[info exists cached_dheads($id)]} { | 
 | 	    set ret [concat $ret $cached_dheads($id)] | 
 | 	} else { | 
 | 	    if {[info exists idheads($id)]} { | 
 | 		lappend ret $id | 
 | 	    } | 
 | 	    foreach a $arcnos($id) { | 
 | 		if {$archeads($a) ne {}} { | 
 | 		    validate_archeads $a | 
 | 		    if {$archeads($a) ne {}} { | 
 | 			set ret [concat $ret $archeads($a)] | 
 | 		    } | 
 | 		} | 
 | 		set d $arcstart($a) | 
 | 		if {![info exists seen($d)]} { | 
 | 		    lappend todo $d | 
 | 		    set seen($d) 1 | 
 | 		} | 
 | 	    } | 
 | 	} | 
 |     } | 
 |     set ret [lsort -unique $ret] | 
 |     set cached_dheads($origid) $ret | 
 |     return [concat $ret $aret] | 
 | } | 
 |  | 
 | proc addedtag {id} { | 
 |     global arcnos arcout cached_dtags cached_atags | 
 |  | 
 |     if {![info exists arcnos($id)]} return | 
 |     if {![info exists arcout($id)]} { | 
 | 	recalcarc [lindex $arcnos($id) 0] | 
 |     } | 
 |     catch {unset cached_dtags} | 
 |     catch {unset cached_atags} | 
 | } | 
 |  | 
 | proc addedhead {hid head} { | 
 |     global arcnos arcout cached_dheads | 
 |  | 
 |     if {![info exists arcnos($hid)]} return | 
 |     if {![info exists arcout($hid)]} { | 
 | 	recalcarc [lindex $arcnos($hid) 0] | 
 |     } | 
 |     catch {unset cached_dheads} | 
 | } | 
 |  | 
 | proc removedhead {hid head} { | 
 |     global cached_dheads | 
 |  | 
 |     catch {unset cached_dheads} | 
 | } | 
 |  | 
 | proc movedhead {hid head} { | 
 |     global arcnos arcout cached_dheads | 
 |  | 
 |     if {![info exists arcnos($hid)]} return | 
 |     if {![info exists arcout($hid)]} { | 
 | 	recalcarc [lindex $arcnos($hid) 0] | 
 |     } | 
 |     catch {unset cached_dheads} | 
 | } | 
 |  | 
 | proc changedrefs {} { | 
 |     global cached_dheads cached_dtags cached_atags | 
 |     global arctags archeads arcnos arcout idheads idtags | 
 |  | 
 |     foreach id [concat [array names idheads] [array names idtags]] { | 
 | 	if {[info exists arcnos($id)] && ![info exists arcout($id)]} { | 
 | 	    set a [lindex $arcnos($id) 0] | 
 | 	    if {![info exists donearc($a)]} { | 
 | 		recalcarc $a | 
 | 		set donearc($a) 1 | 
 | 	    } | 
 | 	} | 
 |     } | 
 |     catch {unset cached_dtags} | 
 |     catch {unset cached_atags} | 
 |     catch {unset cached_dheads} | 
 | } | 
 |  | 
 | proc rereadrefs {} { | 
 |     global idtags idheads idotherrefs mainhead | 
 |  | 
 |     set refids [concat [array names idtags] \ | 
 | 		    [array names idheads] [array names idotherrefs]] | 
 |     foreach id $refids { | 
 | 	if {![info exists ref($id)]} { | 
 | 	    set ref($id) [listrefs $id] | 
 | 	} | 
 |     } | 
 |     set oldmainhead $mainhead | 
 |     readrefs | 
 |     changedrefs | 
 |     set refids [lsort -unique [concat $refids [array names idtags] \ | 
 | 			[array names idheads] [array names idotherrefs]]] | 
 |     foreach id $refids { | 
 | 	set v [listrefs $id] | 
 | 	if {![info exists ref($id)] || $ref($id) != $v || | 
 | 	    ($id eq $oldmainhead && $id ne $mainhead) || | 
 | 	    ($id eq $mainhead && $id ne $oldmainhead)} { | 
 | 	    redrawtags $id | 
 | 	} | 
 |     } | 
 |     run refill_reflist | 
 | } | 
 |  | 
 | proc listrefs {id} { | 
 |     global idtags idheads idotherrefs | 
 |  | 
 |     set x {} | 
 |     if {[info exists idtags($id)]} { | 
 | 	set x $idtags($id) | 
 |     } | 
 |     set y {} | 
 |     if {[info exists idheads($id)]} { | 
 | 	set y $idheads($id) | 
 |     } | 
 |     set z {} | 
 |     if {[info exists idotherrefs($id)]} { | 
 | 	set z $idotherrefs($id) | 
 |     } | 
 |     return [list $x $y $z] | 
 | } | 
 |  | 
 | proc showtag {tag isnew} { | 
 |     global ctext tagcontents tagids linknum tagobjid | 
 |  | 
 |     if {$isnew} { | 
 | 	addtohistory [list showtag $tag 0] | 
 |     } | 
 |     $ctext conf -state normal | 
 |     clear_ctext | 
 |     set linknum 0 | 
 |     if {![info exists tagcontents($tag)]} { | 
 | 	catch { | 
 | 	    set tagcontents($tag) [exec git cat-file tag $tagobjid($tag)] | 
 | 	} | 
 |     } | 
 |     if {[info exists tagcontents($tag)]} { | 
 | 	set text $tagcontents($tag) | 
 |     } else { | 
 | 	set text "Tag: $tag\nId:  $tagids($tag)" | 
 |     } | 
 |     appendwithlinks $text {} | 
 |     $ctext conf -state disabled | 
 |     init_flist {} | 
 | } | 
 |  | 
 | proc doquit {} { | 
 |     global stopped | 
 |     set stopped 100 | 
 |     savestuff . | 
 |     destroy . | 
 | } | 
 |  | 
 | proc doprefs {} { | 
 |     global maxwidth maxgraphpct diffopts | 
 |     global oldprefs prefstop showneartags showlocalchanges | 
 |     global bgcolor fgcolor ctext diffcolors selectbgcolor | 
 |     global uifont tabstop | 
 |  | 
 |     set top .gitkprefs | 
 |     set prefstop $top | 
 |     if {[winfo exists $top]} { | 
 | 	raise $top | 
 | 	return | 
 |     } | 
 |     foreach v {maxwidth maxgraphpct diffopts showneartags showlocalchanges} { | 
 | 	set oldprefs($v) [set $v] | 
 |     } | 
 |     toplevel $top | 
 |     wm title $top "Gitk preferences" | 
 |     label $top.ldisp -text "Commit list display options" | 
 |     $top.ldisp configure -font $uifont | 
 |     grid $top.ldisp - -sticky w -pady 10 | 
 |     label $top.spacer -text " " | 
 |     label $top.maxwidthl -text "Maximum graph width (lines)" \ | 
 | 	-font optionfont | 
 |     spinbox $top.maxwidth -from 0 -to 100 -width 4 -textvariable maxwidth | 
 |     grid $top.spacer $top.maxwidthl $top.maxwidth -sticky w | 
 |     label $top.maxpctl -text "Maximum graph width (% of pane)" \ | 
 | 	-font optionfont | 
 |     spinbox $top.maxpct -from 1 -to 100 -width 4 -textvariable maxgraphpct | 
 |     grid x $top.maxpctl $top.maxpct -sticky w | 
 |     frame $top.showlocal | 
 |     label $top.showlocal.l -text "Show local changes" -font optionfont | 
 |     checkbutton $top.showlocal.b -variable showlocalchanges | 
 |     pack $top.showlocal.b $top.showlocal.l -side left | 
 |     grid x $top.showlocal -sticky w | 
 |  | 
 |     label $top.ddisp -text "Diff display options" | 
 |     $top.ddisp configure -font $uifont | 
 |     grid $top.ddisp - -sticky w -pady 10 | 
 |     label $top.diffoptl -text "Options for diff program" \ | 
 | 	-font optionfont | 
 |     entry $top.diffopt -width 20 -textvariable diffopts | 
 |     grid x $top.diffoptl $top.diffopt -sticky w | 
 |     frame $top.ntag | 
 |     label $top.ntag.l -text "Display nearby tags" -font optionfont | 
 |     checkbutton $top.ntag.b -variable showneartags | 
 |     pack $top.ntag.b $top.ntag.l -side left | 
 |     grid x $top.ntag -sticky w | 
 |     label $top.tabstopl -text "tabstop" -font optionfont | 
 |     spinbox $top.tabstop -from 1 -to 20 -width 4 -textvariable tabstop | 
 |     grid x $top.tabstopl $top.tabstop -sticky w | 
 |  | 
 |     label $top.cdisp -text "Colors: press to choose" | 
 |     $top.cdisp configure -font $uifont | 
 |     grid $top.cdisp - -sticky w -pady 10 | 
 |     label $top.bg -padx 40 -relief sunk -background $bgcolor | 
 |     button $top.bgbut -text "Background" -font optionfont \ | 
 | 	-command [list choosecolor bgcolor 0 $top.bg background setbg] | 
 |     grid x $top.bgbut $top.bg -sticky w | 
 |     label $top.fg -padx 40 -relief sunk -background $fgcolor | 
 |     button $top.fgbut -text "Foreground" -font optionfont \ | 
 | 	-command [list choosecolor fgcolor 0 $top.fg foreground setfg] | 
 |     grid x $top.fgbut $top.fg -sticky w | 
 |     label $top.diffold -padx 40 -relief sunk -background [lindex $diffcolors 0] | 
 |     button $top.diffoldbut -text "Diff: old lines" -font optionfont \ | 
 | 	-command [list choosecolor diffcolors 0 $top.diffold "diff old lines" \ | 
 | 		      [list $ctext tag conf d0 -foreground]] | 
 |     grid x $top.diffoldbut $top.diffold -sticky w | 
 |     label $top.diffnew -padx 40 -relief sunk -background [lindex $diffcolors 1] | 
 |     button $top.diffnewbut -text "Diff: new lines" -font optionfont \ | 
 | 	-command [list choosecolor diffcolors 1 $top.diffnew "diff new lines" \ | 
 | 		      [list $ctext tag conf d1 -foreground]] | 
 |     grid x $top.diffnewbut $top.diffnew -sticky w | 
 |     label $top.hunksep -padx 40 -relief sunk -background [lindex $diffcolors 2] | 
 |     button $top.hunksepbut -text "Diff: hunk header" -font optionfont \ | 
 | 	-command [list choosecolor diffcolors 2 $top.hunksep \ | 
 | 		      "diff hunk header" \ | 
 | 		      [list $ctext tag conf hunksep -foreground]] | 
 |     grid x $top.hunksepbut $top.hunksep -sticky w | 
 |     label $top.selbgsep -padx 40 -relief sunk -background $selectbgcolor | 
 |     button $top.selbgbut -text "Select bg" -font optionfont \ | 
 | 	-command [list choosecolor selectbgcolor 0 $top.selbgsep background setselbg] | 
 |     grid x $top.selbgbut $top.selbgsep -sticky w | 
 |  | 
 |     frame $top.buts | 
 |     button $top.buts.ok -text "OK" -command prefsok -default active | 
 |     $top.buts.ok configure -font $uifont | 
 |     button $top.buts.can -text "Cancel" -command prefscan -default normal | 
 |     $top.buts.can configure -font $uifont | 
 |     grid $top.buts.ok $top.buts.can | 
 |     grid columnconfigure $top.buts 0 -weight 1 -uniform a | 
 |     grid columnconfigure $top.buts 1 -weight 1 -uniform a | 
 |     grid $top.buts - - -pady 10 -sticky ew | 
 |     bind $top <Visibility> "focus $top.buts.ok" | 
 | } | 
 |  | 
 | proc choosecolor {v vi w x cmd} { | 
 |     global $v | 
 |  | 
 |     set c [tk_chooseColor -initialcolor [lindex [set $v] $vi] \ | 
 | 	       -title "Gitk: choose color for $x"] | 
 |     if {$c eq {}} return | 
 |     $w conf -background $c | 
 |     lset $v $vi $c | 
 |     eval $cmd $c | 
 | } | 
 |  | 
 | proc setselbg {c} { | 
 |     global bglist cflist | 
 |     foreach w $bglist { | 
 | 	$w configure -selectbackground $c | 
 |     } | 
 |     $cflist tag configure highlight \ | 
 | 	-background [$cflist cget -selectbackground] | 
 |     allcanvs itemconf secsel -fill $c | 
 | } | 
 |  | 
 | proc setbg {c} { | 
 |     global bglist | 
 |  | 
 |     foreach w $bglist { | 
 | 	$w conf -background $c | 
 |     } | 
 | } | 
 |  | 
 | proc setfg {c} { | 
 |     global fglist canv | 
 |  | 
 |     foreach w $fglist { | 
 | 	$w conf -foreground $c | 
 |     } | 
 |     allcanvs itemconf text -fill $c | 
 |     $canv itemconf circle -outline $c | 
 | } | 
 |  | 
 | proc prefscan {} { | 
 |     global maxwidth maxgraphpct diffopts | 
 |     global oldprefs prefstop showneartags showlocalchanges | 
 |  | 
 |     foreach v {maxwidth maxgraphpct diffopts showneartags showlocalchanges} { | 
 | 	set $v $oldprefs($v) | 
 |     } | 
 |     catch {destroy $prefstop} | 
 |     unset prefstop | 
 | } | 
 |  | 
 | proc prefsok {} { | 
 |     global maxwidth maxgraphpct | 
 |     global oldprefs prefstop showneartags showlocalchanges | 
 |     global charspc ctext tabstop | 
 |  | 
 |     catch {destroy $prefstop} | 
 |     unset prefstop | 
 |     $ctext configure -tabs "[expr {$tabstop * $charspc}]" | 
 |     if {$showlocalchanges != $oldprefs(showlocalchanges)} { | 
 | 	if {$showlocalchanges} { | 
 | 	    doshowlocalchanges | 
 | 	} else { | 
 | 	    dohidelocalchanges | 
 | 	} | 
 |     } | 
 |     if {$maxwidth != $oldprefs(maxwidth) | 
 | 	|| $maxgraphpct != $oldprefs(maxgraphpct)} { | 
 | 	redisplay | 
 |     } elseif {$showneartags != $oldprefs(showneartags)} { | 
 | 	reselectline | 
 |     } | 
 | } | 
 |  | 
 | proc formatdate {d} { | 
 |     global datetimeformat | 
 |     if {$d ne {}} { | 
 | 	set d [clock format $d -format $datetimeformat] | 
 |     } | 
 |     return $d | 
 | } | 
 |  | 
 | # This list of encoding names and aliases is distilled from | 
 | # http://www.iana.org/assignments/character-sets. | 
 | # Not all of them are supported by Tcl. | 
 | set encoding_aliases { | 
 |     { ANSI_X3.4-1968 iso-ir-6 ANSI_X3.4-1986 ISO_646.irv:1991 ASCII | 
 |       ISO646-US US-ASCII us IBM367 cp367 csASCII } | 
 |     { ISO-10646-UTF-1 csISO10646UTF1 } | 
 |     { ISO_646.basic:1983 ref csISO646basic1983 } | 
 |     { INVARIANT csINVARIANT } | 
 |     { ISO_646.irv:1983 iso-ir-2 irv csISO2IntlRefVersion } | 
 |     { BS_4730 iso-ir-4 ISO646-GB gb uk csISO4UnitedKingdom } | 
 |     { NATS-SEFI iso-ir-8-1 csNATSSEFI } | 
 |     { NATS-SEFI-ADD iso-ir-8-2 csNATSSEFIADD } | 
 |     { NATS-DANO iso-ir-9-1 csNATSDANO } | 
 |     { NATS-DANO-ADD iso-ir-9-2 csNATSDANOADD } | 
 |     { SEN_850200_B iso-ir-10 FI ISO646-FI ISO646-SE se csISO10Swedish } | 
 |     { SEN_850200_C iso-ir-11 ISO646-SE2 se2 csISO11SwedishForNames } | 
 |     { KS_C_5601-1987 iso-ir-149 KS_C_5601-1989 KSC_5601 korean csKSC56011987 } | 
 |     { ISO-2022-KR csISO2022KR } | 
 |     { EUC-KR csEUCKR } | 
 |     { ISO-2022-JP csISO2022JP } | 
 |     { ISO-2022-JP-2 csISO2022JP2 } | 
 |     { JIS_C6220-1969-jp JIS_C6220-1969 iso-ir-13 katakana x0201-7 | 
 |       csISO13JISC6220jp } | 
 |     { JIS_C6220-1969-ro iso-ir-14 jp ISO646-JP csISO14JISC6220ro } | 
 |     { IT iso-ir-15 ISO646-IT csISO15Italian } | 
 |     { PT iso-ir-16 ISO646-PT csISO16Portuguese } | 
 |     { ES iso-ir-17 ISO646-ES csISO17Spanish } | 
 |     { greek7-old iso-ir-18 csISO18Greek7Old } | 
 |     { latin-greek iso-ir-19 csISO19LatinGreek } | 
 |     { DIN_66003 iso-ir-21 de ISO646-DE csISO21German } | 
 |     { NF_Z_62-010_(1973) iso-ir-25 ISO646-FR1 csISO25French } | 
 |     { Latin-greek-1 iso-ir-27 csISO27LatinGreek1 } | 
 |     { ISO_5427 iso-ir-37 csISO5427Cyrillic } | 
 |     { JIS_C6226-1978 iso-ir-42 csISO42JISC62261978 } | 
 |     { BS_viewdata iso-ir-47 csISO47BSViewdata } | 
 |     { INIS iso-ir-49 csISO49INIS } | 
 |     { INIS-8 iso-ir-50 csISO50INIS8 } | 
 |     { INIS-cyrillic iso-ir-51 csISO51INISCyrillic } | 
 |     { ISO_5427:1981 iso-ir-54 ISO5427Cyrillic1981 } | 
 |     { ISO_5428:1980 iso-ir-55 csISO5428Greek } | 
 |     { GB_1988-80 iso-ir-57 cn ISO646-CN csISO57GB1988 } | 
 |     { GB_2312-80 iso-ir-58 chinese csISO58GB231280 } | 
 |     { NS_4551-1 iso-ir-60 ISO646-NO no csISO60DanishNorwegian | 
 |       csISO60Norwegian1 } | 
 |     { NS_4551-2 ISO646-NO2 iso-ir-61 no2 csISO61Norwegian2 } | 
 |     { NF_Z_62-010 iso-ir-69 ISO646-FR fr csISO69French } | 
 |     { videotex-suppl iso-ir-70 csISO70VideotexSupp1 } | 
 |     { PT2 iso-ir-84 ISO646-PT2 csISO84Portuguese2 } | 
 |     { ES2 iso-ir-85 ISO646-ES2 csISO85Spanish2 } | 
 |     { MSZ_7795.3 iso-ir-86 ISO646-HU hu csISO86Hungarian } | 
 |     { JIS_C6226-1983 iso-ir-87 x0208 JIS_X0208-1983 csISO87JISX0208 } | 
 |     { greek7 iso-ir-88 csISO88Greek7 } | 
 |     { ASMO_449 ISO_9036 arabic7 iso-ir-89 csISO89ASMO449 } | 
 |     { iso-ir-90 csISO90 } | 
 |     { JIS_C6229-1984-a iso-ir-91 jp-ocr-a csISO91JISC62291984a } | 
 |     { JIS_C6229-1984-b iso-ir-92 ISO646-JP-OCR-B jp-ocr-b | 
 |       csISO92JISC62991984b } | 
 |     { JIS_C6229-1984-b-add iso-ir-93 jp-ocr-b-add csISO93JIS62291984badd } | 
 |     { JIS_C6229-1984-hand iso-ir-94 jp-ocr-hand csISO94JIS62291984hand } | 
 |     { JIS_C6229-1984-hand-add iso-ir-95 jp-ocr-hand-add | 
 |       csISO95JIS62291984handadd } | 
 |     { JIS_C6229-1984-kana iso-ir-96 csISO96JISC62291984kana } | 
 |     { ISO_2033-1983 iso-ir-98 e13b csISO2033 } | 
 |     { ANSI_X3.110-1983 iso-ir-99 CSA_T500-1983 NAPLPS csISO99NAPLPS } | 
 |     { ISO_8859-1:1987 iso-ir-100 ISO_8859-1 ISO-8859-1 latin1 l1 IBM819 | 
 |       CP819 csISOLatin1 } | 
 |     { ISO_8859-2:1987 iso-ir-101 ISO_8859-2 ISO-8859-2 latin2 l2 csISOLatin2 } | 
 |     { T.61-7bit iso-ir-102 csISO102T617bit } | 
 |     { T.61-8bit T.61 iso-ir-103 csISO103T618bit } | 
 |     { ISO_8859-3:1988 iso-ir-109 ISO_8859-3 ISO-8859-3 latin3 l3 csISOLatin3 } | 
 |     { ISO_8859-4:1988 iso-ir-110 ISO_8859-4 ISO-8859-4 latin4 l4 csISOLatin4 } | 
 |     { ECMA-cyrillic iso-ir-111 KOI8-E csISO111ECMACyrillic } | 
 |     { CSA_Z243.4-1985-1 iso-ir-121 ISO646-CA csa7-1 ca csISO121Canadian1 } | 
 |     { CSA_Z243.4-1985-2 iso-ir-122 ISO646-CA2 csa7-2 csISO122Canadian2 } | 
 |     { CSA_Z243.4-1985-gr iso-ir-123 csISO123CSAZ24341985gr } | 
 |     { ISO_8859-6:1987 iso-ir-127 ISO_8859-6 ISO-8859-6 ECMA-114 ASMO-708 | 
 |       arabic csISOLatinArabic } | 
 |     { ISO_8859-6-E csISO88596E ISO-8859-6-E } | 
 |     { ISO_8859-6-I csISO88596I ISO-8859-6-I } | 
 |     { ISO_8859-7:1987 iso-ir-126 ISO_8859-7 ISO-8859-7 ELOT_928 ECMA-118 | 
 |       greek greek8 csISOLatinGreek } | 
 |     { T.101-G2 iso-ir-128 csISO128T101G2 } | 
 |     { ISO_8859-8:1988 iso-ir-138 ISO_8859-8 ISO-8859-8 hebrew | 
 |       csISOLatinHebrew } | 
 |     { ISO_8859-8-E csISO88598E ISO-8859-8-E } | 
 |     { ISO_8859-8-I csISO88598I ISO-8859-8-I } | 
 |     { CSN_369103 iso-ir-139 csISO139CSN369103 } | 
 |     { JUS_I.B1.002 iso-ir-141 ISO646-YU js yu csISO141JUSIB1002 } | 
 |     { ISO_6937-2-add iso-ir-142 csISOTextComm } | 
 |     { IEC_P27-1 iso-ir-143 csISO143IECP271 } | 
 |     { ISO_8859-5:1988 iso-ir-144 ISO_8859-5 ISO-8859-5 cyrillic | 
 |       csISOLatinCyrillic } | 
 |     { JUS_I.B1.003-serb iso-ir-146 serbian csISO146Serbian } | 
 |     { JUS_I.B1.003-mac macedonian iso-ir-147 csISO147Macedonian } | 
 |     { ISO_8859-9:1989 iso-ir-148 ISO_8859-9 ISO-8859-9 latin5 l5 csISOLatin5 } | 
 |     { greek-ccitt iso-ir-150 csISO150 csISO150GreekCCITT } | 
 |     { NC_NC00-10:81 cuba iso-ir-151 ISO646-CU csISO151Cuba } | 
 |     { ISO_6937-2-25 iso-ir-152 csISO6937Add } | 
 |     { GOST_19768-74 ST_SEV_358-88 iso-ir-153 csISO153GOST1976874 } | 
 |     { ISO_8859-supp iso-ir-154 latin1-2-5 csISO8859Supp } | 
 |     { ISO_10367-box iso-ir-155 csISO10367Box } | 
 |     { ISO-8859-10 iso-ir-157 l6 ISO_8859-10:1992 csISOLatin6 latin6 } | 
 |     { latin-lap lap iso-ir-158 csISO158Lap } | 
 |     { JIS_X0212-1990 x0212 iso-ir-159 csISO159JISX02121990 } | 
 |     { DS_2089 DS2089 ISO646-DK dk csISO646Danish } | 
 |     { us-dk csUSDK } | 
 |     { dk-us csDKUS } | 
 |     { JIS_X0201 X0201 csHalfWidthKatakana } | 
 |     { KSC5636 ISO646-KR csKSC5636 } | 
 |     { ISO-10646-UCS-2 csUnicode } | 
 |     { ISO-10646-UCS-4 csUCS4 } | 
 |     { DEC-MCS dec csDECMCS } | 
 |     { hp-roman8 roman8 r8 csHPRoman8 } | 
 |     { macintosh mac csMacintosh } | 
 |     { IBM037 cp037 ebcdic-cp-us ebcdic-cp-ca ebcdic-cp-wt ebcdic-cp-nl | 
 |       csIBM037 } | 
 |     { IBM038 EBCDIC-INT cp038 csIBM038 } | 
 |     { IBM273 CP273 csIBM273 } | 
 |     { IBM274 EBCDIC-BE CP274 csIBM274 } | 
 |     { IBM275 EBCDIC-BR cp275 csIBM275 } | 
 |     { IBM277 EBCDIC-CP-DK EBCDIC-CP-NO csIBM277 } | 
 |     { IBM278 CP278 ebcdic-cp-fi ebcdic-cp-se csIBM278 } | 
 |     { IBM280 CP280 ebcdic-cp-it csIBM280 } | 
 |     { IBM281 EBCDIC-JP-E cp281 csIBM281 } | 
 |     { IBM284 CP284 ebcdic-cp-es csIBM284 } | 
 |     { IBM285 CP285 ebcdic-cp-gb csIBM285 } | 
 |     { IBM290 cp290 EBCDIC-JP-kana csIBM290 } | 
 |     { IBM297 cp297 ebcdic-cp-fr csIBM297 } | 
 |     { IBM420 cp420 ebcdic-cp-ar1 csIBM420 } | 
 |     { IBM423 cp423 ebcdic-cp-gr csIBM423 } | 
 |     { IBM424 cp424 ebcdic-cp-he csIBM424 } | 
 |     { IBM437 cp437 437 csPC8CodePage437 } | 
 |     { IBM500 CP500 ebcdic-cp-be ebcdic-cp-ch csIBM500 } | 
 |     { IBM775 cp775 csPC775Baltic } | 
 |     { IBM850 cp850 850 csPC850Multilingual } | 
 |     { IBM851 cp851 851 csIBM851 } | 
 |     { IBM852 cp852 852 csPCp852 } | 
 |     { IBM855 cp855 855 csIBM855 } | 
 |     { IBM857 cp857 857 csIBM857 } | 
 |     { IBM860 cp860 860 csIBM860 } | 
 |     { IBM861 cp861 861 cp-is csIBM861 } | 
 |     { IBM862 cp862 862 csPC862LatinHebrew } | 
 |     { IBM863 cp863 863 csIBM863 } | 
 |     { IBM864 cp864 csIBM864 } | 
 |     { IBM865 cp865 865 csIBM865 } | 
 |     { IBM866 cp866 866 csIBM866 } | 
 |     { IBM868 CP868 cp-ar csIBM868 } | 
 |     { IBM869 cp869 869 cp-gr csIBM869 } | 
 |     { IBM870 CP870 ebcdic-cp-roece ebcdic-cp-yu csIBM870 } | 
 |     { IBM871 CP871 ebcdic-cp-is csIBM871 } | 
 |     { IBM880 cp880 EBCDIC-Cyrillic csIBM880 } | 
 |     { IBM891 cp891 csIBM891 } | 
 |     { IBM903 cp903 csIBM903 } | 
 |     { IBM904 cp904 904 csIBBM904 } | 
 |     { IBM905 CP905 ebcdic-cp-tr csIBM905 } | 
 |     { IBM918 CP918 ebcdic-cp-ar2 csIBM918 } | 
 |     { IBM1026 CP1026 csIBM1026 } | 
 |     { EBCDIC-AT-DE csIBMEBCDICATDE } | 
 |     { EBCDIC-AT-DE-A csEBCDICATDEA } | 
 |     { EBCDIC-CA-FR csEBCDICCAFR } | 
 |     { EBCDIC-DK-NO csEBCDICDKNO } | 
 |     { EBCDIC-DK-NO-A csEBCDICDKNOA } | 
 |     { EBCDIC-FI-SE csEBCDICFISE } | 
 |     { EBCDIC-FI-SE-A csEBCDICFISEA } | 
 |     { EBCDIC-FR csEBCDICFR } | 
 |     { EBCDIC-IT csEBCDICIT } | 
 |     { EBCDIC-PT csEBCDICPT } | 
 |     { EBCDIC-ES csEBCDICES } | 
 |     { EBCDIC-ES-A csEBCDICESA } | 
 |     { EBCDIC-ES-S csEBCDICESS } | 
 |     { EBCDIC-UK csEBCDICUK } | 
 |     { EBCDIC-US csEBCDICUS } | 
 |     { UNKNOWN-8BIT csUnknown8BiT } | 
 |     { MNEMONIC csMnemonic } | 
 |     { MNEM csMnem } | 
 |     { VISCII csVISCII } | 
 |     { VIQR csVIQR } | 
 |     { KOI8-R csKOI8R } | 
 |     { IBM00858 CCSID00858 CP00858 PC-Multilingual-850+euro } | 
 |     { IBM00924 CCSID00924 CP00924 ebcdic-Latin9--euro } | 
 |     { IBM01140 CCSID01140 CP01140 ebcdic-us-37+euro } | 
 |     { IBM01141 CCSID01141 CP01141 ebcdic-de-273+euro } | 
 |     { IBM01142 CCSID01142 CP01142 ebcdic-dk-277+euro ebcdic-no-277+euro } | 
 |     { IBM01143 CCSID01143 CP01143 ebcdic-fi-278+euro ebcdic-se-278+euro } | 
 |     { IBM01144 CCSID01144 CP01144 ebcdic-it-280+euro } | 
 |     { IBM01145 CCSID01145 CP01145 ebcdic-es-284+euro } | 
 |     { IBM01146 CCSID01146 CP01146 ebcdic-gb-285+euro } | 
 |     { IBM01147 CCSID01147 CP01147 ebcdic-fr-297+euro } | 
 |     { IBM01148 CCSID01148 CP01148 ebcdic-international-500+euro } | 
 |     { IBM01149 CCSID01149 CP01149 ebcdic-is-871+euro } | 
 |     { IBM1047 IBM-1047 } | 
 |     { PTCP154 csPTCP154 PT154 CP154 Cyrillic-Asian } | 
 |     { Amiga-1251 Ami1251 Amiga1251 Ami-1251 } | 
 |     { UNICODE-1-1 csUnicode11 } | 
 |     { CESU-8 csCESU-8 } | 
 |     { BOCU-1 csBOCU-1 } | 
 |     { UNICODE-1-1-UTF-7 csUnicode11UTF7 } | 
 |     { ISO-8859-14 iso-ir-199 ISO_8859-14:1998 ISO_8859-14 latin8 iso-celtic | 
 |       l8 } | 
 |     { ISO-8859-15 ISO_8859-15 Latin-9 } | 
 |     { ISO-8859-16 iso-ir-226 ISO_8859-16:2001 ISO_8859-16 latin10 l10 } | 
 |     { GBK CP936 MS936 windows-936 } | 
 |     { JIS_Encoding csJISEncoding } | 
 |     { Shift_JIS MS_Kanji csShiftJIS } | 
 |     { Extended_UNIX_Code_Packed_Format_for_Japanese csEUCPkdFmtJapanese | 
 |       EUC-JP } | 
 |     { Extended_UNIX_Code_Fixed_Width_for_Japanese csEUCFixWidJapanese } | 
 |     { ISO-10646-UCS-Basic csUnicodeASCII } | 
 |     { ISO-10646-Unicode-Latin1 csUnicodeLatin1 ISO-10646 } | 
 |     { ISO-Unicode-IBM-1261 csUnicodeIBM1261 } | 
 |     { ISO-Unicode-IBM-1268 csUnicodeIBM1268 } | 
 |     { ISO-Unicode-IBM-1276 csUnicodeIBM1276 } | 
 |     { ISO-Unicode-IBM-1264 csUnicodeIBM1264 } | 
 |     { ISO-Unicode-IBM-1265 csUnicodeIBM1265 } | 
 |     { ISO-8859-1-Windows-3.0-Latin-1 csWindows30Latin1 } | 
 |     { ISO-8859-1-Windows-3.1-Latin-1 csWindows31Latin1 } | 
 |     { ISO-8859-2-Windows-Latin-2 csWindows31Latin2 } | 
 |     { ISO-8859-9-Windows-Latin-5 csWindows31Latin5 } | 
 |     { Adobe-Standard-Encoding csAdobeStandardEncoding } | 
 |     { Ventura-US csVenturaUS } | 
 |     { Ventura-International csVenturaInternational } | 
 |     { PC8-Danish-Norwegian csPC8DanishNorwegian } | 
 |     { PC8-Turkish csPC8Turkish } | 
 |     { IBM-Symbols csIBMSymbols } | 
 |     { IBM-Thai csIBMThai } | 
 |     { HP-Legal csHPLegal } | 
 |     { HP-Pi-font csHPPiFont } | 
 |     { HP-Math8 csHPMath8 } | 
 |     { Adobe-Symbol-Encoding csHPPSMath } | 
 |     { HP-DeskTop csHPDesktop } | 
 |     { Ventura-Math csVenturaMath } | 
 |     { Microsoft-Publishing csMicrosoftPublishing } | 
 |     { Windows-31J csWindows31J } | 
 |     { GB2312 csGB2312 } | 
 |     { Big5 csBig5 } | 
 | } | 
 |  | 
 | proc tcl_encoding {enc} { | 
 |     global encoding_aliases | 
 |     set names [encoding names] | 
 |     set lcnames [string tolower $names] | 
 |     set enc [string tolower $enc] | 
 |     set i [lsearch -exact $lcnames $enc] | 
 |     if {$i < 0} { | 
 | 	# look for "isonnn" instead of "iso-nnn" or "iso_nnn" | 
 | 	if {[regsub {^iso[-_]} $enc iso encx]} { | 
 | 	    set i [lsearch -exact $lcnames $encx] | 
 | 	} | 
 |     } | 
 |     if {$i < 0} { | 
 | 	foreach l $encoding_aliases { | 
 | 	    set ll [string tolower $l] | 
 | 	    if {[lsearch -exact $ll $enc] < 0} continue | 
 | 	    # look through the aliases for one that tcl knows about | 
 | 	    foreach e $ll { | 
 | 		set i [lsearch -exact $lcnames $e] | 
 | 		if {$i < 0} { | 
 | 		    if {[regsub {^iso[-_]} $e iso ex]} { | 
 | 			set i [lsearch -exact $lcnames $ex] | 
 | 		    } | 
 | 		} | 
 | 		if {$i >= 0} break | 
 | 	    } | 
 | 	    break | 
 | 	} | 
 |     } | 
 |     if {$i >= 0} { | 
 | 	return [lindex $names $i] | 
 |     } | 
 |     return {} | 
 | } | 
 |  | 
 | # defaults... | 
 | set datemode 0 | 
 | set diffopts "-U 5 -p" | 
 | set wrcomcmd "git diff-tree --stdin -p --pretty" | 
 |  | 
 | set gitencoding {} | 
 | catch { | 
 |     set gitencoding [exec git config --get i18n.commitencoding] | 
 | } | 
 | if {$gitencoding == ""} { | 
 |     set gitencoding "utf-8" | 
 | } | 
 | set tclencoding [tcl_encoding $gitencoding] | 
 | if {$tclencoding == {}} { | 
 |     puts stderr "Warning: encoding $gitencoding is not supported by Tcl/Tk" | 
 | } | 
 |  | 
 | set mainfont {Helvetica 9} | 
 | set textfont {Courier 9} | 
 | set uifont {Helvetica 9 bold} | 
 | set tabstop 8 | 
 | set findmergefiles 0 | 
 | set maxgraphpct 50 | 
 | set maxwidth 16 | 
 | set revlistorder 0 | 
 | set fastdate 0 | 
 | set uparrowlen 7 | 
 | set downarrowlen 7 | 
 | set mingaplen 30 | 
 | set cmitmode "patch" | 
 | set wrapcomment "none" | 
 | set showneartags 1 | 
 | set maxrefs 20 | 
 | set maxlinelen 200 | 
 | set showlocalchanges 1 | 
 | set datetimeformat "%Y-%m-%d %H:%M:%S" | 
 |  | 
 | set colors {green red blue magenta darkgrey brown orange} | 
 | set bgcolor white | 
 | set fgcolor black | 
 | set diffcolors {red "#00a000" blue} | 
 | set diffcontext 3 | 
 | set selectbgcolor gray85 | 
 |  | 
 | catch {source ~/.gitk} | 
 |  | 
 | font create optionfont -family sans-serif -size -12 | 
 |  | 
 | # check that we can find a .git directory somewhere... | 
 | if {[catch {set gitdir [gitdir]}]} { | 
 |     show_error {} . "Cannot find a git repository here." | 
 |     exit 1 | 
 | } | 
 | if {![file isdirectory $gitdir]} { | 
 |     show_error {} . "Cannot find the git directory \"$gitdir\"." | 
 |     exit 1 | 
 | } | 
 |  | 
 | set revtreeargs {} | 
 | set cmdline_files {} | 
 | set i 0 | 
 | foreach arg $argv { | 
 |     switch -- $arg { | 
 | 	"" { } | 
 | 	"-d" { set datemode 1 } | 
 | 	"--" { | 
 | 	    set cmdline_files [lrange $argv [expr {$i + 1}] end] | 
 | 	    break | 
 | 	} | 
 | 	default { | 
 | 	    lappend revtreeargs $arg | 
 | 	} | 
 |     } | 
 |     incr i | 
 | } | 
 |  | 
 | if {$i >= [llength $argv] && $revtreeargs ne {}} { | 
 |     # no -- on command line, but some arguments (other than -d) | 
 |     if {[catch { | 
 | 	set f [eval exec git rev-parse --no-revs --no-flags $revtreeargs] | 
 | 	set cmdline_files [split $f "\n"] | 
 | 	set n [llength $cmdline_files] | 
 | 	set revtreeargs [lrange $revtreeargs 0 end-$n] | 
 | 	# Unfortunately git rev-parse doesn't produce an error when | 
 | 	# something is both a revision and a filename.  To be consistent | 
 | 	# with git log and git rev-list, check revtreeargs for filenames. | 
 | 	foreach arg $revtreeargs { | 
 | 	    if {[file exists $arg]} { | 
 | 		show_error {} . "Ambiguous argument '$arg': both revision\ | 
 | 				 and filename" | 
 | 		exit 1 | 
 | 	    } | 
 | 	} | 
 |     } err]} { | 
 | 	# unfortunately we get both stdout and stderr in $err, | 
 | 	# so look for "fatal:". | 
 | 	set i [string first "fatal:" $err] | 
 | 	if {$i > 0} { | 
 | 	    set err [string range $err [expr {$i + 6}] end] | 
 | 	} | 
 | 	show_error {} . "Bad arguments to gitk:\n$err" | 
 | 	exit 1 | 
 |     } | 
 | } | 
 |  | 
 | set nullid "0000000000000000000000000000000000000000" | 
 | set nullid2 "0000000000000000000000000000000000000001" | 
 |  | 
 |  | 
 | set runq {} | 
 | set history {} | 
 | set historyindex 0 | 
 | set fh_serial 0 | 
 | set nhl_names {} | 
 | set highlight_paths {} | 
 | set searchdirn -forwards | 
 | set boldrows {} | 
 | set boldnamerows {} | 
 | set diffelide {0 0} | 
 | set markingmatches 0 | 
 |  | 
 | set optim_delay 16 | 
 |  | 
 | set nextviewnum 1 | 
 | set curview 0 | 
 | set selectedview 0 | 
 | set selectedhlview None | 
 | set viewfiles(0) {} | 
 | set viewperm(0) 0 | 
 | set viewargs(0) {} | 
 |  | 
 | set cmdlineok 0 | 
 | set stopped 0 | 
 | set stuffsaved 0 | 
 | set patchnum 0 | 
 | set lookingforhead 0 | 
 | set localirow -1 | 
 | set localfrow -1 | 
 | set lserial 0 | 
 | setcoords | 
 | makewindow | 
 | # wait for the window to become visible | 
 | tkwait visibility . | 
 | wm title . "[file tail $argv0]: [file tail [pwd]]" | 
 | readrefs | 
 |  | 
 | if {$cmdline_files ne {} || $revtreeargs ne {}} { | 
 |     # create a view for the files/dirs specified on the command line | 
 |     set curview 1 | 
 |     set selectedview 1 | 
 |     set nextviewnum 2 | 
 |     set viewname(1) "Command line" | 
 |     set viewfiles(1) $cmdline_files | 
 |     set viewargs(1) $revtreeargs | 
 |     set viewperm(1) 0 | 
 |     addviewmenu 1 | 
 |     .bar.view entryconf Edit* -state normal | 
 |     .bar.view entryconf Delete* -state normal | 
 | } | 
 |  | 
 | if {[info exists permviews]} { | 
 |     foreach v $permviews { | 
 | 	set n $nextviewnum | 
 | 	incr nextviewnum | 
 | 	set viewname($n) [lindex $v 0] | 
 | 	set viewfiles($n) [lindex $v 1] | 
 | 	set viewargs($n) [lindex $v 2] | 
 | 	set viewperm($n) 1 | 
 | 	addviewmenu $n | 
 |     } | 
 | } | 
 | getcommits |