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-rw-r--r--Documentation/git-difftool.txt3
-rwxr-xr-xgit-difftool.perl21
-rwxr-xr-xt/t7800-difftool.sh8
3 files changed, 24 insertions, 8 deletions
diff --git a/Documentation/git-difftool.txt b/Documentation/git-difftool.txt
index f67d2db..5c68cff 100644
--- a/Documentation/git-difftool.txt
+++ b/Documentation/git-difftool.txt
@@ -7,7 +7,7 @@ git-difftool - Show changes using common diff tools
SYNOPSIS
--------
-'git difftool' [--tool=<tool>] [-y|--no-prompt|--prompt] [<'git diff' options>]
+'git difftool' [<options>] <commit>{0,2} [--] [<path>...]
DESCRIPTION
-----------
@@ -58,6 +58,7 @@ is set to the name of the temporary file containing the contents
of the diff post-image. `$BASE` is provided for compatibility
with custom merge tool commands and has the same value as `$LOCAL`.
+-x <command>::
--extcmd=<command>::
Specify a custom command for viewing diffs.
'git-difftool' ignores the configured defaults and runs
diff --git a/git-difftool.perl b/git-difftool.perl
index f8ff245..d975d07 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.
@@ -23,8 +23,9 @@ my $DIR = abs_path(dirname($0));
sub usage
{
print << 'USAGE';
-usage: git difftool [-g|--gui] [-t|--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;
}
@@ -62,14 +63,20 @@ sub generate_command
$skip_next = 1;
next;
}
- if ($arg =~ /^--extcmd=/) {
- $ENV{GIT_DIFFTOOL_EXTCMD} = substr($arg, 9);
- next;
- }
if ($arg =~ /^--tool=/) {
$ENV{GIT_DIFF_TOOL} = substr($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') {
my $tool = Git::command_oneline('config',
'diff.guitool');
diff --git a/t/t7800-difftool.sh b/t/t7800-difftool.sh
index 1d9e07b..69e1c34 100755
--- a/t/t7800-difftool.sh
+++ b/t/t7800-difftool.sh
@@ -225,8 +225,16 @@ test_expect_success 'difftool.<tool>.path' '
test_expect_success 'difftool --extcmd=cat' '
diff=$(git difftool --no-prompt --extcmd=cat branch) &&
test "$diff" = branch"$LF"master
+'
+test_expect_success 'difftool --extcmd cat' '
+ diff=$(git difftool --no-prompt --extcmd cat branch) &&
+ test "$diff" = branch"$LF"master
+'
+test_expect_success 'difftool -x cat' '
+ diff=$(git difftool --no-prompt -x cat branch) &&
+ test "$diff" = branch"$LF"master
'