2009-01-16 08:00:02 +00:00
|
|
|
#!/usr/bin/env perl
|
|
|
|
# Copyright (c) 2009 David Aguilar
|
|
|
|
#
|
|
|
|
# This is a wrapper around the GIT_EXTERNAL_DIFF-compatible
|
|
|
|
# git-difftool-helper script. This script exports
|
|
|
|
# GIT_EXTERNAL_DIFF and GIT_PAGER for use by git, and
|
2009-01-19 05:27:19 +00:00
|
|
|
# GIT_DIFFTOOL_NO_PROMPT and GIT_MERGE_TOOL for use by git-difftool-helper.
|
2009-01-16 08:00:02 +00:00
|
|
|
# Any arguments that are unknown to this script are forwarded to 'git diff'.
|
|
|
|
|
|
|
|
use strict;
|
|
|
|
use warnings;
|
|
|
|
use Cwd qw(abs_path);
|
|
|
|
use File::Basename qw(dirname);
|
|
|
|
|
|
|
|
my $DIR = abs_path(dirname($0));
|
|
|
|
|
|
|
|
|
|
|
|
sub usage
|
|
|
|
{
|
|
|
|
print << 'USAGE';
|
2009-01-19 05:27:19 +00:00
|
|
|
usage: git difftool [--tool=<tool>] [--no-prompt] ["git diff" options]
|
2009-01-16 08:00:02 +00:00
|
|
|
USAGE
|
|
|
|
exit 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
sub setup_environment
|
|
|
|
{
|
|
|
|
$ENV{PATH} = "$DIR:$ENV{PATH}";
|
|
|
|
$ENV{GIT_PAGER} = '';
|
|
|
|
$ENV{GIT_EXTERNAL_DIFF} = 'git-difftool-helper';
|
|
|
|
}
|
|
|
|
|
|
|
|
sub exe
|
|
|
|
{
|
|
|
|
my $exe = shift;
|
|
|
|
return defined $ENV{COMSPEC} ? "$exe.exe" : $exe;
|
|
|
|
}
|
|
|
|
|
|
|
|
sub generate_command
|
|
|
|
{
|
|
|
|
my @command = (exe('git'), 'diff');
|
|
|
|
my $skip_next = 0;
|
|
|
|
my $idx = -1;
|
|
|
|
for my $arg (@ARGV) {
|
|
|
|
$idx++;
|
|
|
|
if ($skip_next) {
|
|
|
|
$skip_next = 0;
|
|
|
|
next;
|
|
|
|
}
|
|
|
|
if ($arg eq '-t' or $arg eq '--tool') {
|
|
|
|
usage() if $#ARGV <= $idx;
|
|
|
|
$ENV{GIT_MERGE_TOOL} = $ARGV[$idx + 1];
|
|
|
|
$skip_next = 1;
|
|
|
|
next;
|
|
|
|
}
|
|
|
|
if ($arg =~ /^--tool=/) {
|
|
|
|
$ENV{GIT_MERGE_TOOL} = substr($arg, 7);
|
|
|
|
next;
|
|
|
|
}
|
|
|
|
if ($arg eq '--no-prompt') {
|
|
|
|
$ENV{GIT_DIFFTOOL_NO_PROMPT} = 'true';
|
|
|
|
next;
|
|
|
|
}
|
|
|
|
if ($arg eq '-h' or $arg eq '--help') {
|
|
|
|
usage();
|
|
|
|
}
|
|
|
|
push @command, $arg;
|
|
|
|
}
|
|
|
|
return @command
|
|
|
|
}
|
|
|
|
|
|
|
|
setup_environment();
|
|
|
|
exec(generate_command());
|