1#!/bin/sh
2
3usage() {
4  echo "usage: $0 <source root>"
5  echo "  Prints the source control revision of the given source directory,"
6  echo "  the exact format of the revision string depends on the source "
7  echo "  control system. If the source control system isn't known, the output"
8  echo "  is empty and the exit code is 1."
9  exit 1
10}
11
12if [ $# != 1 ] || [ ! -d $1 ]; then
13  usage;
14fi
15
16cd $1
17if [ -d .svn ]; then
18  svnversion | sed -e "s#\([0-9]*\)[A-Z]*#\1#"
19elif [ -f .git/svn/.metadata ]; then
20  git svn info | grep 'Revision:' | cut -d: -f2-
21elif [ -d .git ]; then
22  git log -1 --pretty=format:%H
23else
24  exit 1;
25fi
26
27exit 0
28