6a08320031
This change condenses the directory structure to something more similar to what we had before while producing similar packages. It also introduces version.py which allows us to get the version from git tags (or a fallback version if not available). Fixes lp bug 889336 Fixes lp bug 888795 Change-Id: I86136bd9dbabb5eb1f8366ed665ed9b54f695124
105 lines
2.7 KiB
Python
105 lines
2.7 KiB
Python
# -*- coding: utf-8 -*-
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# Author: Douglas Creager <dcreager@dcreager.net>
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# This file is placed into the public domain.
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# Calculates the current version number. If possible, this is the
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# output of “git describe”, modified to conform to the versioning
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# scheme that setuptools uses. If “git describe” returns an error
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# (most likely because we're in an unpacked copy of a release tarball,
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# rather than in a git working copy), then we fall back on reading the
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# contents of the RELEASE-VERSION file.
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#
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# To use this script, simply import it your setup.py file, and use the
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# results of get_git_version() as your package version:
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#
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# from version import *
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#
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# setup(
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# version=get_git_version(),
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# .
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# .
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# .
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# )
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#
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# This will automatically update the RELEASE-VERSION file, if
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# necessary. Note that the RELEASE-VERSION file should *not* be
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# checked into git; please add it to your top-level .gitignore file.
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#
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# You'll probably want to distribute the RELEASE-VERSION file in your
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# sdist tarballs; to do this, just create a MANIFEST.in file that
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# contains the following line:
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#
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# include RELEASE-VERSION
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__all__ = ("get_git_version")
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from subprocess import Popen, PIPE
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FALLBACK_VERSION="2012.1dev"
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def call_git_describe(abbrev=4):
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try:
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p = Popen(['git', 'describe', '--abbrev=%d' % abbrev],
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stdout=PIPE, stderr=PIPE)
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p.stderr.close()
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line = p.stdout.readlines()[0]
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return line.strip()
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except:
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return FALLBACK_VERSION
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def read_release_version():
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try:
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f = open("RELEASE-VERSION", "r")
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try:
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version = f.readlines()[0]
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return version.strip()
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finally:
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f.close()
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except:
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return None
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def write_release_version(version):
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f = open("RELEASE-VERSION", "w")
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f.write("%s\n" % version)
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f.close()
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def get_git_version(abbrev=4):
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# Read in the version that's currently in RELEASE-VERSION.
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release_version = read_release_version()
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# First try to get the current version using “git describe”.
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version = call_git_describe(abbrev)
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# If that doesn't work, fall back on the value that's in
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# RELEASE-VERSION.
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if version is None:
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version = release_version
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# If we still don't have anything, that's an error.
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if version is None:
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raise ValueError("Cannot find the version number!")
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# If the current version is different from what's in the
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# RELEASE-VERSION file, update the file to be current.
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if version != release_version:
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write_release_version(version)
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# Finally, return the current version.
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return version
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if __name__ == "__main__":
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print get_git_version()
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