xref: /openbmc/u-boot/tools/patman/patman.py (revision b46694df) 
1#!/usr/bin/env python
2#
3# Copyright (c) 2011 The Chromium OS Authors.
4#
5# See file CREDITS for list of people who contributed to this
6# project.
7#
8# This program is free software; you can redistribute it and/or
9# modify it under the terms of the GNU General Public License as
10# published by the Free Software Foundation; either version 2 of
11# the License, or (at your option) any later version.
12#
13# This program is distributed in the hope that it will be useful,
14# but WITHOUT ANY WARRANTY; without even the implied warranty of
15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16# GNU General Public License for more details.
17#
18# You should have received a copy of the GNU General Public License
19# along with this program; if not, write to the Free Software
20# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21# MA 02111-1307 USA
22#
23
24"""See README for more information"""
25
26from optparse import OptionParser
27import os
28import re
29import sys
30import unittest
31
32# Our modules
33import checkpatch
34import command
35import gitutil
36import patchstream
37import project
38import settings
39import terminal
40import test
41
42
43parser = OptionParser()
44parser.add_option('-a', '--no-apply', action='store_false',
45                  dest='apply_patches', default=True,
46                  help="Don't test-apply patches with git am")
47parser.add_option('-H', '--full-help', action='store_true', dest='full_help',
48       default=False, help='Display the README file')
49parser.add_option('-c', '--count', dest='count', type='int',
50       default=-1, help='Automatically create patches from top n commits')
51parser.add_option('-i', '--ignore-errors', action='store_true',
52       dest='ignore_errors', default=False,
53       help='Send patches email even if patch errors are found')
54parser.add_option('-n', '--dry-run', action='store_true', dest='dry_run',
55       default=False, help="Do a dry run (create but don't email patches)")
56parser.add_option('-p', '--project', default=project.DetectProject(),
57                  help="Project name; affects default option values and "
58                  "aliases [default: %default]")
59parser.add_option('-r', '--in-reply-to', type='string', action='store',
60                  help="Message ID that this series is in reply to")
61parser.add_option('-s', '--start', dest='start', type='int',
62       default=0, help='Commit to start creating patches from (0 = HEAD)')
63parser.add_option('-t', '--ignore-bad-tags', action='store_true',
64                  default=False, help='Ignore bad tags / aliases')
65parser.add_option('--test', action='store_true', dest='test',
66                  default=False, help='run tests')
67parser.add_option('-v', '--verbose', action='store_true', dest='verbose',
68       default=False, help='Verbose output of errors and warnings')
69parser.add_option('--cc-cmd', dest='cc_cmd', type='string', action='store',
70       default=None, help='Output cc list for patch file (used by git)')
71parser.add_option('--no-check', action='store_false', dest='check_patch',
72                  default=True,
73                  help="Don't check for patch compliance")
74parser.add_option('--no-tags', action='store_false', dest='process_tags',
75                  default=True, help="Don't process subject tags as aliaes")
76
77parser.usage = """patman [options]
78
79Create patches from commits in a branch, check them and email them as
80specified by tags you place in the commits. Use -n to do a dry run first."""
81
82
83# Parse options twice: first to get the project and second to handle
84# defaults properly (which depends on project).
85(options, args) = parser.parse_args()
86settings.Setup(parser, options.project, '')
87(options, args) = parser.parse_args()
88
89# Run our meagre tests
90if options.test:
91    import doctest
92
93    sys.argv = [sys.argv[0]]
94    suite = unittest.TestLoader().loadTestsFromTestCase(test.TestPatch)
95    result = unittest.TestResult()
96    suite.run(result)
97
98    for module in ['gitutil', 'settings']:
99        suite = doctest.DocTestSuite(module)
100        suite.run(result)
101
102    # TODO: Surely we can just 'print' result?
103    print result
104    for test, err in result.errors:
105        print err
106    for test, err in result.failures:
107        print err
108
109# Called from git with a patch filename as argument
110# Printout a list of additional CC recipients for this patch
111elif options.cc_cmd:
112    fd = open(options.cc_cmd, 'r')
113    re_line = re.compile('(\S*) (.*)')
114    for line in fd.readlines():
115        match = re_line.match(line)
116        if match and match.group(1) == args[0]:
117            for cc in match.group(2).split(', '):
118                cc = cc.strip()
119                if cc:
120                    print cc
121    fd.close()
122
123elif options.full_help:
124    pager = os.getenv('PAGER')
125    if not pager:
126        pager = 'more'
127    fname = os.path.join(os.path.dirname(sys.argv[0]), 'README')
128    command.Run(pager, fname)
129
130# Process commits, produce patches files, check them, email them
131else:
132    gitutil.Setup()
133
134    if options.count == -1:
135        # Work out how many patches to send if we can
136        options.count = gitutil.CountCommitsToBranch() - options.start
137
138    col = terminal.Color()
139    if not options.count:
140        str = 'No commits found to process - please use -c flag'
141        print col.Color(col.RED, str)
142        sys.exit(1)
143
144    # Read the metadata from the commits
145    if options.count:
146        series = patchstream.GetMetaData(options.start, options.count)
147        cover_fname, args = gitutil.CreatePatches(options.start, options.count,
148                series)
149
150    # Fix up the patch files to our liking, and insert the cover letter
151    series = patchstream.FixPatches(series, args)
152    if series and cover_fname and series.get('cover'):
153        patchstream.InsertCoverLetter(cover_fname, series, options.count)
154
155    # Do a few checks on the series
156    series.DoChecks()
157
158    # Check the patches, and run them through 'git am' just to be sure
159    if options.check_patch:
160        ok = checkpatch.CheckPatches(options.verbose, args)
161    else:
162        ok = True
163    if options.apply_patches:
164        if not gitutil.ApplyPatches(options.verbose, args,
165                                    options.count + options.start):
166            ok = False
167
168    cc_file = series.MakeCcFile(options.process_tags, cover_fname,
169                                not options.ignore_bad_tags)
170
171    # Email the patches out (giving the user time to check / cancel)
172    cmd = ''
173    if ok or options.ignore_errors:
174        cmd = gitutil.EmailPatches(series, cover_fname, args,
175                options.dry_run, not options.ignore_bad_tags, cc_file,
176                in_reply_to=options.in_reply_to)
177
178    # For a dry run, just show our actions as a sanity check
179    if options.dry_run:
180        series.ShowActions(args, cmd, options.process_tags)
181
182    os.remove(cc_file)
183