4 # Generate a database of commits and major versions they went into.
6 # A brute-force quickish way of mapping commits to major versions
8 # This code is part of the LWN git data miner.
10 # Copyright 2007-13 Eklektix, Inc.
11 # Copyright 2007-13 Jonathan Corbet <corbet@lwn.net>
13 # This file may be distributed under the terms of the GNU General
14 # Public License, version 2.
26 p = argparse.ArgumentParser()
29 # -l to load it before running
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')
38 p.add_argument('-r', '--repository', help = 'Repository location',
40 p.add_argument('-v', '--version', help = 'Current dev version',
41 required = True, type = int)
49 # Pull in an existing database if requested.
52 DB = pickle.load(open(args.database, 'r'))
55 out = open(args.database, 'w')
57 os.chdir(args.repository)
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
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')
79 for v in range(1, final):
80 GetCommits('v5.%d..v5.%d' % (v - 1, v), 'v5.%d' % (v))
81 GetCommits('v5.%d..' % (final - 1), 'v5.%d' % (final))
83 print '\nFound %d commits' % (len(DB.keys()))