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#!/usr/bin/python
#
# Generate a database of commits and major versions they went into.
#
# committags [git-args]
#
# This code is part of the LWN git data miner.
#
# Copyright 2007-8 LWN.net
# Copyright 2007-8 Jonathan Corbet <corbet@lwn.net>
#
# This file may be distributed under the terms of the GNU General
# Public License, version 2.
#
import sys
import re
import os
import pickle
git = 'git log --decorate '
if len(sys.argv) > 1:
git += ' '.join(sys.argv[1:])
input = os.popen(git, 'r')
DB = { }
Tag = 'None'
tagline = re.compile(r'^commit ([\da-f]+) .*tag: (v2\.6\.\d\d)')
commit = re.compile(r'^commit ([\da-f]+)')
for line in input.readlines():
if not line.startswith('commit'):
continue # This makes it go faster
m = tagline.search(line)
if m:
DB[m.group(1)] = Tag = m.group(2)
else:
m = commit.search(line)
if m:
DB[m.group(1)] = Tag
print 'Found %d commits' % (len(DB.keys()))
out = open('committags.db', 'w')
pickle.dump(DB, out)
out.close()
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