1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
|
#!/usr/bin/env python2
#
# Copyright (c) 2017 ARM Limited
# All rights reserved
#
# The license below extends only to copyright in the software and shall
# not be construed as granting a license to any other intellectual
# property including but not limited to intellectual property relating
# to a hardware implementation of the functionality of the software
# licensed hereunder. You may use the software subject to the license
# terms below provided that you ensure that this notice is replicated
# unmodified and in its entirety in all distributions of the software,
# modified or unmodified, in source code or in binary form.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met: redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer;
# redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution;
# neither the name of the copyright holders nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Authors: Andreas Sandberg
import subprocess
import re
from functools import wraps
class Commit(object):
_re_tag = re.compile(r"^((?:\w|-)+): (.*)$")
def __init__(self, rev):
self.rev = rev
self._log = None
self._tags = None
def _git(self, args):
return subprocess.check_output([ "git", ] + args)
@property
def log(self):
"""Log message belonging to a commit returned as a list with on line
per element.
"""
if self._log is None:
self._log = self._git(
["show", "--format=%B", "--no-patch", str(self.rev) ]
).rstrip("\n").split("\n")
return self._log
@property
def tags(self):
"""Get all commit message tags in the current commit.
Returns: { tag, [ value, ... ] }
"""
if self._tags is None:
tags = {}
for l in self.log[1:]:
m = Commit._re_tag.match(l)
if m:
key, value = m.group(1), m.group(2)
try:
tags[key].append(value)
except KeyError:
tags[key] = [ value ]
self._tags = tags
return self._tags
@property
def change_id(self):
"""Get the Change-Id tag from the commit
Returns: A change ID or None if no change ID has been
specified.
"""
try:
cids = self.tags["Change-Id"]
except KeyError:
return None
assert len(cids) == 1
return cids[0]
def __str__(self):
return "%s: %s" % (self.rev[0:8], self.log[0])
def list_revs(branch, baseline=None):
"""Get a generator that lists git revisions that exist in 'branch'. If
the optional parameter 'baseline' is specified, the generator
excludes commits that exist on that branch.
Returns: Generator of Commit objects
"""
if baseline is not None:
query = "%s..%s" % (branch, baseline)
else:
query = str(branch)
changes = subprocess.check_output([ "git", "rev-list", query ])
if changes == "":
return
for rev in changes.rstrip("\n").split("\n"):
assert rev != ""
yield Commit(rev)
def list_changes(upstream, feature):
feature_revs = tuple(list_revs(upstream, feature))
upstream_revs = tuple(list_revs(feature, upstream))
feature_cids = dict([
(c.change_id, c) for c in feature_revs if c.change_id is not None ])
upstream_cids = dict([
(c.change_id, c) for c in upstream_revs if c.change_id is not None ])
incoming = filter(
lambda r: r.change_id and r.change_id not in feature_cids,
reversed(upstream_revs))
outgoing = filter(
lambda r: r.change_id and r.change_id not in upstream_cids,
reversed(feature_revs))
common = filter(
lambda r: r.change_id in upstream_cids,
reversed(feature_revs))
upstream_unknown = filter(
lambda r: r.change_id is None,
reversed(upstream_revs))
feature_unknown = filter(
lambda r: r.change_id is None,
reversed(feature_revs))
return incoming, outgoing, common, upstream_unknown, feature_unknown
def _main():
import argparse
parser = argparse.ArgumentParser(
description="List incoming and outgoing changes in a feature branch")
parser.add_argument("--upstream", "-u", type=str, default="origin/master",
help="Upstream branch for comparison. " \
"Default: %(default)s")
parser.add_argument("--feature", "-f", type=str, default="HEAD",
help="Feature branch for comparison. " \
"Default: %(default)s")
parser.add_argument("--show-unknown", action="store_true",
help="Print changes without Change-Id tags")
parser.add_argument("--show-common", action="store_true",
help="Print common changes")
parser.add_argument("--deep-search", action="store_true",
help="Use a deep search to find incorrectly " \
"rebased changes")
args = parser.parse_args()
incoming, outgoing, common, upstream_unknown, feature_unknown = \
list_changes(args.upstream, args.feature)
if incoming:
print "Incoming changes:"
for rev in incoming:
print rev
print
if args.show_unknown and upstream_unknown:
print "Upstream changes without change IDs:"
for rev in upstream_unknown:
print rev
print
if outgoing:
print "Outgoing changes:"
for rev in outgoing:
print rev
print
if args.show_common and common:
print "Common changes:"
for rev in common:
print rev
print
if args.show_unknown and feature_unknown:
print "Outgoing changes without change IDs:"
for rev in feature_unknown:
print rev
if args.deep_search:
print "Incorrectly rebased changes:"
all_upstream_revs = list_revs(args.upstream)
all_upstream_cids = dict([
(c.change_id, c) for c in all_upstream_revs \
if c.change_id is not None ])
incorrect_outgoing = filter(
lambda r: r.change_id in all_upstream_cids,
outgoing)
for rev in incorrect_outgoing:
print rev
if __name__ == "__main__":
_main()
|
