doc: generate a list of valid merge tools
Use the show_tool_names() function to build lists of all
the built-in tools supported by difftool and mergetool.
This frees us from needing to update the documentation
whenever a new tool is added.
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/Documentation/.gitignore b/Documentation/.gitignore
index d62aebd..2c8b2d6 100644
--- a/Documentation/.gitignore
+++ b/Documentation/.gitignore
@@ -9,4 +9,5 @@
howto-index.txt
doc.dep
cmds-*.txt
+mergetools-*.txt
manpage-base-url.xsl
diff --git a/Documentation/Makefile b/Documentation/Makefile
index 267dfe1..9209cf2 100644
--- a/Documentation/Makefile
+++ b/Documentation/Makefile
@@ -202,7 +202,11 @@
#
# Determine "include::" file references in asciidoc files.
#
-doc.dep : $(wildcard *.txt) build-docdep.perl
+docdep_prereqs = \
+ mergetools-list.made $(mergetools_txt) \
+ cmd-list.made $(cmds_txt)
+
+doc.dep : $(docdep_prereqs) $(wildcard *.txt) build-docdep.perl
$(QUIET_GEN)$(RM) $@+ $@ && \
$(PERL_PATH) ./build-docdep.perl >$@+ $(QUIET_STDERR) && \
mv $@+ $@
@@ -226,13 +230,27 @@
$(PERL_PATH) ./cmd-list.perl ../command-list.txt $(QUIET_STDERR) && \
date >$@
+mergetools_txt = mergetools-diff.txt mergetools-merge.txt
+
+$(mergetools_txt): mergetools-list.made
+
+mergetools-list.made: ../git-mergetool--lib.sh $(wildcard ../mergetools/*)
+ $(QUIET_GEN)$(RM) $@ && \
+ $(SHELL_PATH) -c 'MERGE_TOOLS_DIR=../mergetools && \
+ . ../git-mergetool--lib.sh && \
+ show_tool_names can_diff "* " || :' >mergetools-diff.txt && \
+ $(SHELL_PATH) -c 'MERGE_TOOLS_DIR=../mergetools && \
+ . ../git-mergetool--lib.sh && \
+ show_tool_names can_merge "* " || :' >mergetools-merge.txt && \
+ date >$@
+
clean:
$(RM) *.xml *.xml+ *.html *.html+ *.1 *.5 *.7
$(RM) *.texi *.texi+ *.texi++ git.info gitman.info
$(RM) *.pdf
$(RM) howto-index.txt howto/*.html doc.dep
$(RM) technical/api-*.html technical/api-index.txt
- $(RM) $(cmds_txt) *.made
+ $(RM) $(cmds_txt) $(mergetools_txt) *.made
$(RM) manpage-base-url.xsl
$(MAN_HTML): %.html : %.txt
diff --git a/Documentation/diff-config.txt b/Documentation/diff-config.txt
index 67a90a8..7c968d1 100644
--- a/Documentation/diff-config.txt
+++ b/Documentation/diff-config.txt
@@ -132,9 +132,10 @@
conversion outputs. See linkgit:gitattributes[5] for details.
diff.tool::
- The diff tool to be used by linkgit:git-difftool[1]. This
- option overrides `merge.tool`, and has the same valid built-in
- values as `merge.tool` minus "tortoisemerge" and plus
- "kompare". Any other value is treated as a custom diff tool,
- and there must be a corresponding `difftool.<tool>.cmd`
- option.
+ Controls which diff tool is used by linkgit:git-difftool[1].
+ This variable overrides the value configured in `merge.tool`.
+ The list below shows the valid built-in values.
+ Any other value is treated as a custom diff tool and requires
+ that a corresponding difftool.<tool>.cmd variable is defined.
+
+include::mergetools-diff.txt[]
diff --git a/Documentation/merge-config.txt b/Documentation/merge-config.txt
index 861bd6f..5f40e71 100644
--- a/Documentation/merge-config.txt
+++ b/Documentation/merge-config.txt
@@ -52,12 +52,12 @@
at the end of the merge. True by default.
merge.tool::
- Controls which merge resolution program is used by
- linkgit:git-mergetool[1]. Valid built-in values are: "araxis",
- "bc3", "diffuse", "ecmerge", "emerge", "gvimdiff", "kdiff3", "meld",
- "opendiff", "p4merge", "tkdiff", "tortoisemerge", "vimdiff"
- and "xxdiff". Any other value is treated is custom merge tool
- and there must be a corresponding mergetool.<tool>.cmd option.
+ Controls which merge tool is used by linkgit:git-mergetool[1].
+ The list below shows the valid built-in values.
+ Any other value is treated as a custom merge tool and requires
+ that a corresponding mergetool.<tool>.cmd variable is defined.
+
+include::mergetools-merge.txt[]
merge.verbosity::
Controls the amount of output shown by the recursive merge
diff --git a/git-mergetool--lib.sh b/git-mergetool--lib.sh
index 330b036..e338be5 100644
--- a/git-mergetool--lib.sh
+++ b/git-mergetool--lib.sh
@@ -1,6 +1,7 @@
#!/bin/sh
# git-mergetool--lib is a library for common merge tool functions
-MERGE_TOOLS_DIR=$(git --exec-path)/mergetools
+
+: ${MERGE_TOOLS_DIR=$(git --exec-path)/mergetools}
mode_ok () {
if diff_mode
