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# -*- coding: utf-8 -*-
# Author: Douglas Creager <dcreager@dcreager.net>
# This file is placed into the public domain.
# It's customized for alot. changes:
# * read VERSION file relative to this file
# Calculates the current version number. If possible, this is the
# output of “git describe”, modified to conform to the versioning
# scheme that setuptools uses. If “git describe” returns an error
# (most likely because we're in an unpacked copy of a release tarball,
# rather than in a git working copy), then we fall back on reading the
# contents of the VERSION file.
#
# To use this script, simply import it your setup.py file, and use the
# results of get_git_version() as your package version:
#
# from version import *
#
# setup(
# version=get_git_version(),
# .
# .
# .
# )
#
# This will automatically update the VERSION file, if
# necessary. Note that the VERSION file should *not* be
# checked into git; please add it to your top-level .gitignore file.
#
# You'll probably want to distribute the VERSION file in your
# sdist tarballs; to do this, just create a MANIFEST.in file that
# contains the following line:
#
# include VERSION
__all__ = ("get_git_version")
import os.path
VERSIONFILE = os.path.join(os.path.dirname(__file__), 'VERSION')
try:
from subprocess import Popen, PIPE
except ImportError:
import warnings
warnings.warn("Can't import subprocess module,"
"git version will not be available.")
def call_git_describe(abbrev=4):
try:
p = Popen(['git', 'describe', '--abbrev=%d' % abbrev, 'HEAD'],
stdout=PIPE, stderr=PIPE)
p.stderr.close()
line = p.stdout.readlines()[0]
version = line.strip()
if version[:1] == 'v':
version = version[1:]
return version
except:
return None
def read_version():
try:
f = open(VERSIONFILE, "r")
try:
version = f.readlines()[0]
return version.strip()
finally:
f.close()
except:
return None
def write_version(version):
f = open(VERSIONFILE, "w")
f.write("%s\n" % version)
f.close()
def generate_version(abbrev=4):
# Read in the version that's currently in VERSION.
release_version = read_version()
# First try to get the current version using “git describe”.
version = call_git_describe(abbrev)
# If that doesn't work, fall back on the value that's in
# RELEASE-VERSION.
if version is None:
version = release_version
# If we still don't have anything, that's an error.
if version is None:
raise ValueError("Cannot find the version number!")
# If the current version is different from what's in the
# RELEASE-VERSION file, update the file to be current.
if version != release_version:
write_version(version)
# Finally, return the current version.
return version
if __name__ == "__main__":
print (get_git_version())
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