50 lines
1.7 KiB
Python
50 lines
1.7 KiB
Python
import datetime
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import os
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import subprocess
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def get_version(version=None):
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"Returns a PEP 386-compliant version number from VERSION."
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if version is None:
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from django import VERSION as version
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else:
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assert len(version) == 5
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assert version[3] in ('alpha', 'beta', 'rc', 'final')
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# Now build the two parts of the version number:
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# main = X.Y[.Z]
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# sub = .devN - for pre-alpha releases
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# | {a|b|c}N - for alpha, beta and rc releases
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parts = 2 if version[2] == 0 else 3
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main = '.'.join(str(x) for x in version[:parts])
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sub = ''
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if version[3] == 'alpha' and version[4] == 0:
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git_changeset = get_git_changeset()
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if git_changeset:
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sub = '.dev%s' % git_changeset
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elif version[3] != 'final':
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mapping = {'alpha': 'a', 'beta': 'b', 'rc': 'c'}
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sub = mapping[version[3]] + str(version[4])
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return main + sub
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def get_git_changeset():
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"""Returns a numeric identifier of the latest git changeset.
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The result is the UTC timestamp of the changeset in YYYYMMDDHHMMSS format.
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This value isn't guaranteed to be unique, but collisions are very unlikely,
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so it's sufficient for generating the development version numbers.
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"""
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repo_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
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git_show = subprocess.Popen('git show --pretty=format:%ct --quiet HEAD',
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stdout=subprocess.PIPE, stderr=subprocess.PIPE,
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shell=True, cwd=repo_dir, universal_newlines=True)
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timestamp = git_show.communicate()[0].partition('\n')[0]
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try:
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timestamp = datetime.datetime.utcfromtimestamp(int(timestamp))
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except ValueError:
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return None
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return timestamp.strftime('%Y%m%d%H%M%S')
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