#!/bin/sh
# Copyright © 2010 by Daniel Friesel <derf@chaosdorf.de>
# License: WTFPL:
#   0. You just DO WHAT THE FUCK YOU WANT TO.
#
# You probably need to run this check via sudo. For /etc,
# > nagios  ALL=(root) NOPASSWD: /usr/local/lib/nagios/plugins/check_git_status /etc
# should do the job.

STATE_OK=0
STATE_WARNING=1
STATE_CRITICAL=2
STATE_UNKNOWN=3

GIT="/usr/bin/git"

REPO="${1}"

if [ ! -x ${GIT} ]
then
	echo "Can't execute ${GIT}"
	exit $STATE_UNKNOWN
fi

if [ $# -lt 1 ]
then
	echo "Usage: $0 <repo>" 
	exit $STATE_UNKNOWN
fi

if [ -z "${REPO}/.git" -o ! -d "${REPO}/.git" ]
then
	echo "No repo specified or ${REPO} is not a git repo";
	exit $STATE_UNKNOWN
fi

cd "${REPO}" || exit $STATE_UNKNOWN

if [ -z "$(${GIT} ls-files --modified --deleted --others --exclude-standard)" ]
then
	echo "No uncommited changes in ${REPO}"
	exit $STATE_OK
else
	echo "Uncommited changes in ${REPO}"
	exit $STATE_WARNING
fi

echo "Someting went wrong"
exit $STATE_UNKNOWN