config/printprereleasesuffix.py

   1 # This Source Code Form is subject to the terms of the Mozilla Public
   2 # License, v. 2.0. If a copy of the MPL was not distributed with this
   3 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
   4
   5 # Prints the pre-release version suffix based on the version string
   6 #
   7 # Examples:
   8 # 2.1a3    > " 2.1 Alpha 3"
   9 # 2.1a3pre > ""
  10 # 3.2b4    > " 3.2 Beta 4"
  11 # 3.2b4pre > ""
  12 from __future__ import print_function
  13
  14 import sys
  15 import re
  16
  17 def get_prerelease_suffix(version):
  18   """ Returns the prerelease suffix from the version string argument """
  19
  20   def mfunc(m):
  21     return " {0} {1} {2}".format(m.group('prefix'),
  22                                  {'a': 'Alpha', 'b': 'Beta'}[m.group('c')],
  23                                  m.group('suffix'))
  24   result, c = re.subn(r'^(?P<prefix>(\d+\.)*\d+)(?P<c>[ab])(?P<suffix>\d+)$',
  25                       mfunc, version)
  26   if c != 1:
  27     return ''
  28   return result
  29
  30 if len(sys.argv) == 2:
  31   print(get_prerelease_suffix(sys.argv[1]))