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-rwxr-xr-xgit-difftool.perl28
1 files changed, 26 insertions, 2 deletions
diff --git a/git-difftool.perl b/git-difftool.perl
index ba5e60a45e..adc42de875 100755
--- a/git-difftool.perl
+++ b/git-difftool.perl
@@ -1,5 +1,5 @@
#!/usr/bin/env perl
-# Copyright (c) 2009 David Aguilar
+# Copyright (c) 2009, 2010 David Aguilar
#
# This is a wrapper around the GIT_EXTERNAL_DIFF-compatible
# git-difftool--helper script.
@@ -15,13 +15,17 @@ use warnings;
use Cwd qw(abs_path);
use File::Basename qw(dirname);
+require Git;
+
my $DIR = abs_path(dirname($0));
sub usage
{
print << 'USAGE';
-usage: git difftool [--tool=<tool>] [-y|--no-prompt] ["git diff" options]
+usage: git difftool [-t|--tool=<tool>] [-x|--extcmd=<cmd>]
+ [-y|--no-prompt] [-g|--gui]
+ ['git diff' options]
USAGE
exit 1;
}
@@ -63,6 +67,26 @@ sub generate_command
$ENV{GIT_DIFF_TOOL} = substr($arg, 7);
next;
}
+ if ($arg eq '-x' || $arg eq '--extcmd') {
+ usage() if $#ARGV <= $idx;
+ $ENV{GIT_DIFFTOOL_EXTCMD} = $ARGV[$idx + 1];
+ $skip_next = 1;
+ next;
+ }
+ if ($arg =~ /^--extcmd=/) {
+ $ENV{GIT_DIFFTOOL_EXTCMD} = substr($arg, 9);
+ next;
+ }
+ if ($arg eq '-g' || $arg eq '--gui') {
+ eval {
+ my $tool = Git::command_oneline('config',
+ 'diff.guitool');
+ if (length($tool)) {
+ $ENV{GIT_DIFF_TOOL} = $tool;
+ }
+ };
+ next;
+ }
if ($arg eq '-y' || $arg eq '--no-prompt') {
$ENV{GIT_DIFFTOOL_NO_PROMPT} = 'true';
delete $ENV{GIT_DIFFTOOL_PROMPT};