import subprocess
import datetime
import os
NAME = 'django_page_exporter'.replace('_', '-')
VERSION = __version__ = (0, 3, 0, 'alpha', 0)
__author__ = 'Marco Immediato'
[docs]def get_version(): # pragma: no cover
"""Derives a PEP386-compliant version number from VERSION."""
assert len(VERSION) == 5
assert VERSION[3] in ('alpha', 'beta', 'rc', 'final')
parts = 2 if VERSION[2] == 0 else 3
main = '.'.join(str(x) for x in VERSION[:parts])
sub = ''
if VERSION[3] == 'alpha' and VERSION[4] == 0:
git_changeset = get_git_changeset()
if git_changeset:
sub = '.dev%s' % git_changeset
elif VERSION[3] != 'final':
mapping = {'alpha': 'a', 'beta': 'b', 'rc': 'c'}
sub = mapping[VERSION[3]] + str(VERSION[4])
elif VERSION[3] == 'final':
if VERSION[4] > 0:
sub += '-%s' % VERSION[4]
return main + sub
[docs]def get_git_changeset(): # pragma: no cover
"""Returns a numeric identifier of the latest git changeset.
The result is the UTC timestamp of the changeset in YYYYMMDDHHMMSS format.
This value isn't guaranteed to be unique, but collisions are very unlikely,
so it's sufficient for generating the development version numbers.
"""
repo_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
git_log = subprocess.Popen('git log --pretty=format:%ct --quiet -1 HEAD',
stdout=subprocess.PIPE, stderr=subprocess.PIPE,
shell=True, cwd=repo_dir, universal_newlines=True)
timestamp = git_log.communicate()[0]
try:
timestamp = datetime.datetime.utcfromtimestamp(int(timestamp))
except ValueError:
return None
return timestamp.strftime('%Y%m%d%H%M%S')