|  | #!/bin/sh | 
|  |  | 
|  | usage() { | 
|  | echo "usage: $0 <source root>" | 
|  | echo "  Prints the source control revision of the given source directory," | 
|  | echo "  the exact format of the revision string depends on the source " | 
|  | echo "  control system. If the source control system isn't known, the output" | 
|  | echo "  is empty and the exit code is 1." | 
|  | exit 1 | 
|  | } | 
|  |  | 
|  | if [ $# != 1 ] || [ ! -d $1 ]; then | 
|  | usage; | 
|  | fi | 
|  |  | 
|  | cd $1 | 
|  | if [ -d .svn ]; then | 
|  | svnversion | sed -e "s#\([0-9]*\)[A-Z]*#\1#" | 
|  | elif [ -f .git/svn/.metadata ]; then | 
|  | git svn info | grep 'Revision:' | cut -d: -f2- | 
|  | elif [ -d .git ]; then | 
|  | git log -1 --pretty=format:%H | 
|  | else | 
|  | exit 1; | 
|  | fi | 
|  |  | 
|  | exit 0 |