git-gui: Don't nice git blame on MSYS as nice is not supported
Johannes Sixt reported that MinGW/MSYS does not have a nice.exe to
drop the priority of a child process when it gets spawned. So we
have to avoid trying to start `git blame` through nice when we are
on Windows and do not have Cygwin available to us.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
diff --git a/lib/blame.tcl b/lib/blame.tcl
index 076233c..b523654 100644
--- a/lib/blame.tcl
+++ b/lib/blame.tcl
@@ -487,7 +487,11 @@
} ifdeleted { catch {close $fd} }
method _exec_blame {cur_w cur_d options cur_s} {
- set cmd [list nice git blame]
+ set cmd [list]
+ if {![is_Windows] || [is_Cygwin]} {
+ lappend cmd nice
+ }
+ lappend cmd git blame
set cmd [concat $cmd $options]
lappend cmd --incremental
if {$commit eq {}} {
