inittags

   1 #!/usr/bin/python
   2 # -*- python -*-
   3 #
   4 # Generate a database of commits and major versions they went into.
   5 #
   6 # A brute-force quickish way of mapping commits to major versions
   7 #
   8 # This code is part of the LWN git data miner.
   9 #
  10 # Copyright 2007-13 Eklektix, Inc.
  11 # Copyright 2007-13 Jonathan Corbet <corbet@lwn.net>
  12 #
  13 # This file may be distributed under the terms of the GNU General
  14 # Public License, version 2.
  15 #
  16 import sys
  17 import re
  18 import os
  19 import pickle
  20 import argparse
  21
  22 #
  23 # Arg parsing stuff.
  24 #
  25 def setupargs():
  26     p = argparse.ArgumentParser()
  27     #
  28     # -d for the database
  29     # -l to load it before running
  30     #
  31     p.add_argument('-d', '--database', help = 'Database name',
  32                    required = False, default = 'committags.db')
  33     p.add_argument('-l', '--load', help = 'Load database at startup',
  34                    default = False, action = 'store_true')
  35     #
  36     # Where's the repo?
  37     #
  38     p.add_argument('-r', '--repository', help = 'Repository location',
  39                    default = '')
  40     p.add_argument('-v', '--version', help = 'Current dev version',
  41                    required = True, type = int)
  42     return p
  43
  44
  45 p = setupargs()
  46 args = p.parse_args()
  47
  48 #
  49 # Pull in an existing database if requested.
  50 #
  51 if args.load:
  52     DB = pickle.load(open(args.database, 'r'))
  53 else:
  54     DB = { }
  55 out = open(args.database, 'wb')
  56 if args.repository:
  57     os.chdir(args.repository)
  58
  59 def GetCommits(range, tag):
  60     git = 'git log --pretty=format:%H ' + range
  61     input = os.popen(git, 'r')
  62     for line in input.readlines():
  63         DB[line.strip()] = tag
  64     input.close()
  65
  66 initial = '1da177e4c3f41524e886b7f1b8a0c1fc7321cac2'
  67 DB[initial] = 'v2.6.12'
  68 GetCommits('1da177e4c3f41524e886b7f1b8a0c1fc7321cac2..v2.6.12', 'v2.6.12')
  69 for v in range(13, 40):
  70     GetCommits('v2.6.%d..v2.6.%d' % (v - 1, v), 'v2.6.%d' % (v))
  71 GetCommits('v2.6.39..v3.0', 'v3.0')
  72 for v in range(1, 20):
  73     GetCommits('v3.%d..v3.%d' % (v - 1, v), 'v3.%d' % (v))
  74 GetCommits('v3.19..v4.0', 'v4.0')
  75 for v in range(1, 21):
  76     GetCommits('v4.%d..v4.%d' % (v - 1, v), 'v4.%d' % (v))
  77 GetCommits('v4.20..v5.0', 'v5.0')
  78 for v in range(1, 20):
  79     GetCommits('v5.%d..v5.%d' % (v - 1, v), 'v5.%d' % (v))
  80 GetCommits('v5.19..v6.0', 'v6.0')
  81 final = args.version
  82 for v in range(1, int(final)):
  83     GetCommits('v6.%d..v6.%d' % (v - 1, v), 'v6.%d' % (v))
  84 GetCommits('v6.%d..' % (final - 1), 'v6.%d' % (final))
  85
  86 print('\nFound %d commits' % (len(DB.keys())))
  87 pickle.dump(DB, out)
  88 out.close()