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- import datetime
- import functools
- import os
- import subprocess
- from distutils.version import LooseVersion
-
-
- def get_version(version=None):
- """Return a PEP 440-compliant version number from VERSION."""
- version = get_complete_version(version)
-
- # Now build the two parts of the version number:
- # main = X.Y[.Z]
- # sub = .devN - for pre-alpha releases
- # | {a|b|rc}N - for alpha, beta, and rc releases
-
- main = get_main_version(version)
-
- 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': 'rc'}
- sub = mapping[version[3]] + str(version[4])
-
- return main + sub
-
-
- def get_main_version(version=None):
- """Return main version (X.Y[.Z]) from VERSION."""
- version = get_complete_version(version)
- parts = 2 if version[2] == 0 else 3
- return '.'.join(str(x) for x in version[:parts])
-
-
- def get_complete_version(version=None):
- """
- Return a tuple of the django version. If version argument is non-empty,
- check for correctness of the tuple provided.
- """
- if version is None:
- from django import VERSION as version
- else:
- assert len(version) == 5
- assert version[3] in ('alpha', 'beta', 'rc', 'final')
-
- return version
-
-
- def get_docs_version(version=None):
- version = get_complete_version(version)
- if version[3] != 'final':
- return 'dev'
- else:
- return '%d.%d' % version[:2]
-
-
- @functools.lru_cache()
- def get_git_changeset():
- """Return 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')
-
-
- def get_version_tuple(version):
- """
- Return a tuple of version numbers (e.g. (1, 2, 3)) from the version
- string (e.g. '1.2.3').
- """
- loose_version = LooseVersion(version)
- version_numbers = []
- for item in loose_version.version:
- if not isinstance(item, int):
- break
- version_numbers.append(item)
- return tuple(version_numbers)
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