xref: /openbmc/u-boot/tools/patman/patman.py (revision 36c7c925)
1#!/usr/bin/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('-H', '--full-help', action='store_true', dest='full_help',
45       default=False, help='Display the README file')
46parser.add_option('-c', '--count', dest='count', type='int',
47       default=-1, help='Automatically create patches from top n commits')
48parser.add_option('-i', '--ignore-errors', action='store_true',
49       dest='ignore_errors', default=False,
50       help='Send patches email even if patch errors are found')
51parser.add_option('-n', '--dry-run', action='store_true', dest='dry_run',
52       default=False, help="Do a try run (create but don't email patches)")
53parser.add_option('-p', '--project', default=project.DetectProject(),
54                  help="Project name; affects default option values and "
55                  "aliases [default: %default]")
56parser.add_option('-s', '--start', dest='start', type='int',
57       default=0, help='Commit to start creating patches from (0 = HEAD)')
58parser.add_option('-t', '--test', action='store_true', dest='test',
59                  default=False, help='run tests')
60parser.add_option('-v', '--verbose', action='store_true', dest='verbose',
61       default=False, help='Verbose output of errors and warnings')
62parser.add_option('--cc-cmd', dest='cc_cmd', type='string', action='store',
63       default=None, help='Output cc list for patch file (used by git)')
64parser.add_option('--no-check', action='store_false', dest='check_patch',
65                  default=True,
66                  help="Don't check for patch compliance")
67parser.add_option('--no-tags', action='store_false', dest='process_tags',
68                  default=True, help="Don't process subject tags as aliaes")
69
70parser.usage = """patman [options]
71
72Create patches from commits in a branch, check them and email them as
73specified by tags you place in the commits. Use -n to """
74
75
76# Parse options twice: first to get the project and second to handle
77# defaults properly (which depends on project).
78(options, args) = parser.parse_args()
79settings.Setup(parser, options.project, '')
80(options, args) = parser.parse_args()
81
82# Run our meagre tests
83if options.test:
84    import doctest
85
86    sys.argv = [sys.argv[0]]
87    suite = unittest.TestLoader().loadTestsFromTestCase(test.TestPatch)
88    result = unittest.TestResult()
89    suite.run(result)
90
91    for module in ['gitutil', 'settings']:
92        suite = doctest.DocTestSuite(module)
93        suite.run(result)
94
95    # TODO: Surely we can just 'print' result?
96    print result
97    for test, err in result.errors:
98        print err
99    for test, err in result.failures:
100        print err
101
102# Called from git with a patch filename as argument
103# Printout a list of additional CC recipients for this patch
104elif options.cc_cmd:
105    fd = open(options.cc_cmd, 'r')
106    re_line = re.compile('(\S*) (.*)')
107    for line in fd.readlines():
108        match = re_line.match(line)
109        if match and match.group(1) == args[0]:
110            for cc in match.group(2).split(', '):
111                cc = cc.strip()
112                if cc:
113                    print cc
114    fd.close()
115
116elif options.full_help:
117    pager = os.getenv('PAGER')
118    if not pager:
119        pager = 'more'
120    fname = os.path.join(os.path.dirname(sys.argv[0]), 'README')
121    command.Run(pager, fname)
122
123# Process commits, produce patches files, check them, email them
124else:
125    gitutil.Setup()
126
127    if options.count == -1:
128        # Work out how many patches to send if we can
129        options.count = gitutil.CountCommitsToBranch() - options.start
130
131    col = terminal.Color()
132    if not options.count:
133        str = 'No commits found to process - please use -c flag'
134        print col.Color(col.RED, str)
135        sys.exit(1)
136
137    # Read the metadata from the commits
138    if options.count:
139        series = patchstream.GetMetaData(options.start, options.count)
140        cover_fname, args = gitutil.CreatePatches(options.start, options.count,
141                series)
142
143    # Fix up the patch files to our liking, and insert the cover letter
144    series = patchstream.FixPatches(series, args)
145    if series and cover_fname and series.get('cover'):
146        patchstream.InsertCoverLetter(cover_fname, series, options.count)
147
148    # Do a few checks on the series
149    series.DoChecks()
150
151    # Check the patches, and run them through 'git am' just to be sure
152    if options.check_patch:
153        ok = checkpatch.CheckPatches(options.verbose, args)
154    else:
155        ok = True
156    if not gitutil.ApplyPatches(options.verbose, args,
157            options.count + options.start):
158        ok = False
159
160    cc_file = series.MakeCcFile(options.process_tags, cover_fname)
161
162    # Email the patches out (giving the user time to check / cancel)
163    cmd = ''
164    if ok or options.ignore_errors:
165        cmd = gitutil.EmailPatches(series, cover_fname, args,
166                options.dry_run, cc_file)
167
168    # For a dry run, just show our actions as a sanity check
169    if options.dry_run:
170        series.ShowActions(args, cmd, options.process_tags)
171
172    os.remove(cc_file)
173