app/django/utils/version.py
author Sverre Rabbelier <srabbelier@gmail.com>
Fri, 13 Feb 2009 19:22:34 +0000
changeset 1298 a04ab9bd300a
parent 1279 f85ac8856dca
permissions -rw-r--r--
Fixes as requested by Leslie on behalf of the Legal team Upped the copyright statement from 2008 to 2009, and link to the GAE Terms of Service instead of any custom ToS. Patch by: Sverre Rabbelier

import django
import os.path
import re

def get_svn_revision(path=None):
    """
    Returns the SVN revision in the form SVN-XXXX,
    where XXXX is the revision number.

    Returns SVN-unknown if anything goes wrong, such as an unexpected
    format of internal SVN files.

    If path is provided, it should be a directory whose SVN info you want to
    inspect. If it's not provided, this will use the root django/ package
    directory.
    """
    rev = None
    if path is None:
        path = django.__path__[0]
    entries_path = '%s/.svn/entries' % path

    if not os.environ['SERVER_SOFTWARE'].startswith('Dev'):
      if os.path.exists(entries_path):
          entries = open(entries_path, 'r').read()
          # Versions >= 7 of the entries file are flat text.  The first line is
          # the version number. The next set of digits after 'dir' is the revision.
          if re.match('(\d+)', entries):
              rev_match = re.search('\d+\s+dir\s+(\d+)', entries)
              if rev_match:
                  rev = rev_match.groups()[0]
          # Older XML versions of the file specify revision as an attribute of
          # the first entries node.
          else:
              from xml.dom import minidom
              dom = minidom.parse(entries_path)
              rev = dom.getElementsByTagName('entry')[0].getAttribute('revision')

    if rev:
        return u'SVN-%s' % rev
    return u'SVN-unknown'