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#!/usr/bin/env perl
#
# Git prompt helper
#
# Make your bash prompt with current branch and a dirty flag if
# you have uncommitted stuff.
#
# Author: Michael Zedeler <michael@zedeler.dk>
#
# How to use:
#
# - Place this script in a bin folder somewhere (lets just call it <bin>).
# - Add this to your .bashrc:
#
# PS1="\$(<bin>/git-prompt-helper)"$PS1
#
# Yes - this affects how fast bash responds.
# On my system it takes around 40ms.
#
use strict;
use warnings;
open my $IN, 'git status 2>/dev/null|';
my $branch;
my $clean;
while(<$IN>) {
$branch = $1 if /On branch (\S+)/;
$clean = 1 if /nothing to commit/;
}
$clean = 0 if not $clean and $branch;
print $branch ? ('[', $branch, ($clean ? '' : '*'), ']') : '';
# Copyright (c) 2010, Michael Zedeler
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of the Michael Zedeler nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
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