Mercurial > hg
view mercurial/version.py @ 3412:f2de6b6bc57a
imported patch b1
author | Matt Mackall <mpm@selenic.com> |
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date | Tue, 17 Oct 2006 18:01:14 -0500 |
parents | 345bac2bc4ec |
children | cff3e4b4a8de |
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# Copyright (C) 2005, 2006 by Intevation GmbH # Author(s): # Thomas Arendsen Hein <thomas@intevation.de> # # This program is free software under the GNU GPL (>=v2) # Read the file COPYING coming with the software for details. """ Mercurial version """ import os import os.path import re import time import util unknown_version = 'unknown' remembered_version = False def get_version(): """Return version information if available.""" try: from mercurial.__version__ import version except ImportError: version = unknown_version return version def write_version(version): """Overwrite version file.""" if version == get_version(): return directory = os.path.dirname(__file__) for suffix in ['py', 'pyc', 'pyo']: try: os.unlink(os.path.join(directory, '__version__.%s' % suffix)) except OSError: pass f = open(os.path.join(directory, '__version__.py'), 'w') f.write("# This file is auto-generated.\n") f.write("version = %r\n" % version) f.close() def remember_version(version=None): """Store version information.""" global remembered_version if not version and os.path.isdir(".hg"): f = os.popen("hg identify 2> %s" % util.nulldev) # use real hg installation ident = f.read()[:-1] if not f.close() and ident: ids = ident.split(' ', 1) version = ids.pop(0) if version[-1] == '+': version = version[:-1] modified = True else: modified = False if version.isalnum() and ids: for tag in ids[0].split('/'): # is a tag is suitable as a version number? if re.match(r'^(\d+\.)+[\w.-]+$', tag): version = tag break if modified: version += time.strftime('+%Y%m%d') if version: remembered_version = True write_version(version) def forget_version(): """Remove version information.""" if remembered_version: write_version(unknown_version)