| 1 | """Access to the GIT base directory |
| 2 | """ |
| 3 | |
| 4 | __copyright__ = """ |
| 5 | Copyright (C) 2006, Catalin Marinas <catalin.marinas@gmail.com> |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License version 2 as |
| 9 | published by the Free Software Foundation. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | """ |
| 20 | |
| 21 | import os |
| 22 | |
| 23 | def __output(cmd): |
| 24 | f = os.popen(cmd, 'r') |
| 25 | string = f.readline().rstrip() |
| 26 | if f.close(): |
| 27 | return '' |
| 28 | return string |
| 29 | |
| 30 | # GIT_DIR value cached |
| 31 | __base_dir = None |
| 32 | |
| 33 | def get(): |
| 34 | """Return the .git directory location |
| 35 | """ |
| 36 | global __base_dir |
| 37 | |
| 38 | if not __base_dir: |
| 39 | if 'GIT_DIR' in os.environ: |
| 40 | __base_dir = os.environ['GIT_DIR'] |
| 41 | else: |
| 42 | __base_dir = __output('git-rev-parse --git-dir 2> /dev/null') |
| 43 | |
| 44 | return __base_dir |
| 45 | |
| 46 | def clear_cache(): |
| 47 | """Clear the cached location of .git |
| 48 | """ |
| 49 | global __base_dir |
| 50 | __base_dir = None |