sapling/mercurial/version.py
mpm@selenic.com ef9fd5ee6e [PATCH] /dev/null for other OS
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

[PATCH] /dev/null for other OS

From: K Thananchayan <thananck@yahoo.com>

Null device name is platform dependent. Introduce util.nulldev
- - platform dependent constant and use it instead of '/dev/null'

manifest hash: 95a1bfdb712c53ef97aaff73f7f4c87e9299cf59
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.0 (GNU/Linux)

iD8DBQFCvQCGywK+sNU5EO8RAiRBAKCcXasCCFT2+6wgklkgqIt4l3UwugCeKWii
h/8iRYEw8Rp8B67abiFiwyY=
=L3Mk
-----END PGP SIGNATURE-----
2005-06-24 22:58:14 -08:00

68 lines
1.9 KiB
Python

# Copyright (C) 2005 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."""
filename = os.path.join(os.path.dirname(__file__), '__version__.py')
f = open(filename, '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)