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1 #!/usr/bin/env python | 1 #!/usr/bin/env python |
2 # Copyright (c) 2014 The Chromium Authors. All rights reserved. | 2 # Copyright (c) 2014 The Chromium Authors. All rights reserved. |
3 # Use of this source code is governed by a BSD-style license that can be | 3 # Use of this source code is governed by a BSD-style license that can be |
4 # found in the LICENSE file. | 4 # found in the LICENSE file. |
5 | 5 |
6 """This scripts takes the path to a dep and an svn revision, and updates the | 6 """This scripts takes the path to a dep and an svn revision, and updates the |
7 parent repo's DEPS file with the corresponding git revision. Sample invocation: | 7 parent repo's DEPS file with the corresponding git revision. Sample invocation: |
8 | 8 |
9 [chromium/src]$ roll-dep third_party/WebKit 12345 | 9 [chromium/src]$ roll-dep third_party/WebKit 12345 |
10 | 10 |
11 After the script completes, the DEPS file will be dirty with the new revision. | 11 After the script completes, the DEPS file will be dirty with the new revision. |
12 The user can then: | 12 The user can then: |
13 | 13 |
14 $ git add DEPS | 14 $ git add DEPS |
15 $ git commit | 15 $ git commit |
16 """ | 16 """ |
17 | 17 |
18 import ast | 18 import ast |
19 import optparse | |
19 import os | 20 import os |
20 import re | 21 import re |
21 import sys | 22 import sys |
22 | 23 |
23 from itertools import izip | 24 from itertools import izip |
24 from subprocess import check_output, Popen, PIPE | 25 from subprocess import check_output, Popen, PIPE |
25 from textwrap import dedent | 26 from textwrap import dedent |
26 | 27 |
27 | 28 |
28 SHA1_RE = re.compile('^[a-fA-F0-9]{40}$') | 29 SHA1_RE = re.compile('^[a-fA-F0-9]{40}$') |
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73 gclient_locals = {} | 74 gclient_locals = {} |
74 execfile(gclient_path, {}, gclient_locals) | 75 execfile(gclient_path, {}, gclient_locals) |
75 for soln in gclient_locals['solutions']: | 76 for soln in gclient_locals['solutions']: |
76 soln_relpath = platform_path(soln['name'].rstrip('/')) + os.sep | 77 soln_relpath = platform_path(soln['name'].rstrip('/')) + os.sep |
77 if (dep_path.startswith(soln_relpath) or | 78 if (dep_path.startswith(soln_relpath) or |
78 cwd.startswith(os.path.join(gclient_root, soln_relpath))): | 79 cwd.startswith(os.path.join(gclient_root, soln_relpath))): |
79 return soln | 80 return soln |
80 assert False, 'Could not determine the parent project for %s' % dep_path | 81 assert False, 'Could not determine the parent project for %s' % dep_path |
81 | 82 |
82 | 83 |
84 def is_git_hash(revision): | |
85 """Determines if a given revision is a git hash.""" | |
86 return SHA1_RE.match(revision) | |
87 | |
88 | |
83 def verify_git_revision(dep_path, revision): | 89 def verify_git_revision(dep_path, revision): |
84 """Verify that a git revision exists in a repository.""" | 90 """Verify that a git revision exists in a repository.""" |
85 p = Popen(['git', 'rev-list', '-n', '1', revision], | 91 p = Popen(['git', 'rev-list', '-n', '1', revision], |
86 cwd=dep_path, stdout=PIPE, stderr=PIPE) | 92 cwd=dep_path, stdout=PIPE, stderr=PIPE) |
87 result = p.communicate()[0].strip() | 93 result = p.communicate()[0].strip() |
88 if p.returncode != 0 or not SHA1_RE.match(result): | 94 if p.returncode != 0 or not is_git_hash(result): |
89 result = None | 95 result = None |
90 return result | 96 return result |
91 | 97 |
92 | 98 |
93 def get_svn_revision(dep_path, git_revision): | 99 def get_svn_revision(dep_path, git_revision): |
94 """Given a git revision, return the corresponding svn revision.""" | 100 """Given a git revision, return the corresponding svn revision.""" |
95 p = Popen(['git', 'log', '-n', '1', '--pretty=format:%B', git_revision], | 101 p = Popen(['git', 'log', '-n', '1', '--pretty=format:%B', git_revision], |
96 stdout=PIPE, cwd=dep_path) | 102 stdout=PIPE, cwd=dep_path) |
97 (log, _) = p.communicate() | 103 (log, _) = p.communicate() |
98 assert p.returncode == 0, 'git log %s failed.' % git_revision | 104 assert p.returncode == 0, 'git log %s failed.' % git_revision |
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146 log_p.terminate() | 152 log_p.terminate() |
147 grep_p.terminate() | 153 grep_p.terminate() |
148 raise RuntimeError('No match for revision %d; %s' % (revision, err_msg)) | 154 raise RuntimeError('No match for revision %d; %s' % (revision, err_msg)) |
149 | 155 |
150 | 156 |
151 def get_git_revision(dep_path, revision): | 157 def get_git_revision(dep_path, revision): |
152 """Convert the revision argument passed to the script to a git revision.""" | 158 """Convert the revision argument passed to the script to a git revision.""" |
153 svn_revision = None | 159 svn_revision = None |
154 if revision.startswith('r'): | 160 if revision.startswith('r'): |
155 git_revision = convert_svn_revision(dep_path, revision[1:]) | 161 git_revision = convert_svn_revision(dep_path, revision[1:]) |
156 svn_revision = revision[1:] | 162 svn_revision = revision[1:] |
jochen (gone - plz use gerrit)
2014/12/12 10:08:36
nit. add if not git_revision: raise RuntimeError('
Michael Achenbach
2014/12/12 10:24:06
Done. I assume you meant two lines below as this c
| |
157 elif re.search('[a-fA-F]', revision): | 163 elif re.search('[a-fA-F]', revision): |
158 git_revision = verify_git_revision(dep_path, revision) | 164 git_revision = verify_git_revision(dep_path, revision) |
159 svn_revision = get_svn_revision(dep_path, git_revision) | 165 svn_revision = get_svn_revision(dep_path, git_revision) |
160 elif len(revision) > 6: | 166 elif len(revision) > 6: |
161 git_revision = verify_git_revision(dep_path, revision) | 167 git_revision = verify_git_revision(dep_path, revision) |
162 if git_revision: | 168 if git_revision: |
163 svn_revision = get_svn_revision(dep_path, git_revision) | 169 svn_revision = get_svn_revision(dep_path, git_revision) |
164 else: | 170 else: |
165 git_revision = convert_svn_revision(dep_path, revision) | 171 git_revision = convert_svn_revision(dep_path, revision) |
166 svn_revision = revision | 172 svn_revision = revision |
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265 cwd=dep_path).rstrip() | 271 cwd=dep_path).rstrip() |
266 | 272 |
267 | 273 |
268 def generate_commit_message(deps_section, dep_path, dep_name, new_rev): | 274 def generate_commit_message(deps_section, dep_path, dep_name, new_rev): |
269 (url, _, old_rev) = deps_section[dep_name].partition('@') | 275 (url, _, old_rev) = deps_section[dep_name].partition('@') |
270 if url.endswith('.git'): | 276 if url.endswith('.git'): |
271 url = url[:-4] | 277 url = url[:-4] |
272 old_rev_short = short_rev(old_rev, dep_path) | 278 old_rev_short = short_rev(old_rev, dep_path) |
273 new_rev_short = short_rev(new_rev, dep_path) | 279 new_rev_short = short_rev(new_rev, dep_path) |
274 url += '/+log/%s..%s' % (old_rev_short, new_rev_short) | 280 url += '/+log/%s..%s' % (old_rev_short, new_rev_short) |
275 old_svn_rev = get_svn_revision(dep_path, old_rev) | 281 try: |
276 new_svn_rev = get_svn_revision(dep_path, new_rev) | 282 old_svn_rev = get_svn_revision(dep_path, old_rev) |
283 new_svn_rev = get_svn_revision(dep_path, new_rev) | |
284 except Exception: | |
jochen (gone - plz use gerrit)
2014/12/12 10:08:36
when can this happen? I thought get_svn_revision j
Michael Achenbach
2014/12/12 10:24:06
It contains also an assertion that raises if git l
| |
285 # Ignore failures that might arise from the repo not being checked out. | |
286 old_svn_rev = new_svn_rev = None | |
277 svn_range_str = '' | 287 svn_range_str = '' |
278 if old_svn_rev and new_svn_rev: | 288 if old_svn_rev and new_svn_rev: |
279 svn_range_str = ' (svn %s:%s)' % (old_svn_rev, new_svn_rev) | 289 svn_range_str = ' (svn %s:%s)' % (old_svn_rev, new_svn_rev) |
280 return dedent(ROLL_DESCRIPTION_STR % { | 290 return dedent(ROLL_DESCRIPTION_STR % { |
281 'dep_path': shorten_dep_path(dep_name), | 291 'dep_path': shorten_dep_path(dep_name), |
282 'before_rev': old_rev_short, | 292 'before_rev': old_rev_short, |
283 'after_rev': new_rev_short, | 293 'after_rev': new_rev_short, |
284 'svn_range': svn_range_str, | 294 'svn_range': svn_range_str, |
285 'revlog_url': url, | 295 'revlog_url': url, |
286 }) | 296 }) |
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337 ['git', 'rev-parse', '--show-toplevel'], | 347 ['git', 'rev-parse', '--show-toplevel'], |
338 cwd=deps_file_dir, stdout=PIPE).communicate()[0].strip() | 348 cwd=deps_file_dir, stdout=PIPE).communicate()[0].strip() |
339 with open(os.path.join(deps_file_root, '.git', 'MERGE_MSG'), 'w') as fh: | 349 with open(os.path.join(deps_file_root, '.git', 'MERGE_MSG'), 'w') as fh: |
340 fh.write(commit_msg) | 350 fh.write(commit_msg) |
341 else: | 351 else: |
342 print 'Could not find an entry in %s to update.' % deps_file | 352 print 'Could not find an entry in %s to update.' % deps_file |
343 return 0 if commit_msg else 1 | 353 return 0 if commit_msg else 1 |
344 | 354 |
345 | 355 |
346 def main(argv): | 356 def main(argv): |
357 parser = optparse.OptionParser() | |
358 parser.add_option('--no-verify-revision', | |
359 help='Don\'t verify the revision passed in. This ' | |
360 'also skips adding an svn revision comment ' | |
361 'for git dependencies and requires the passed ' | |
362 'revision to be a git hash.', | |
363 default=False, action='store_true') | |
364 (options, argv) = parser.parse_args(argv) | |
347 if len(argv) not in (2, 3): | 365 if len(argv) not in (2, 3): |
348 print >> sys.stderr, ( | 366 print >> sys.stderr, ( |
349 'Usage: roll_dep.py <dep path> <svn revision> [ <DEPS file> ]') | 367 'Usage: roll_dep.py [options] <dep path> <svn revision> ' |
368 '[ <DEPS file> ]') | |
350 return 1 | 369 return 1 |
351 (arg_dep_path, revision) = argv[0:2] | 370 (arg_dep_path, revision) = argv[0:2] |
352 gclient_root = find_gclient_root() | 371 gclient_root = find_gclient_root() |
353 dep_path = platform_path(arg_dep_path) | 372 dep_path = platform_path(arg_dep_path) |
354 if not os.path.exists(dep_path): | 373 if not os.path.exists(dep_path): |
355 dep_path = os.path.join(gclient_root, dep_path) | 374 dep_path = os.path.join(gclient_root, dep_path) |
356 assert os.path.isdir(dep_path), 'No such directory: %s' % arg_dep_path | 375 if not options.no_verify_revision: |
376 # Only require the path to exist if the revision should be verified. A path | |
377 # to e.g. os deps might not be checked out. | |
378 assert os.path.isdir(dep_path), 'No such directory: %s' % arg_dep_path | |
357 if len(argv) > 2: | 379 if len(argv) > 2: |
358 deps_file = argv[2] | 380 deps_file = argv[2] |
359 else: | 381 else: |
360 soln = get_solution(gclient_root, dep_path) | 382 soln = get_solution(gclient_root, dep_path) |
361 soln_path = os.path.relpath(os.path.join(gclient_root, soln['name'])) | 383 soln_path = os.path.relpath(os.path.join(gclient_root, soln['name'])) |
362 deps_file = os.path.join(soln_path, 'DEPS') | 384 deps_file = os.path.join(soln_path, 'DEPS') |
363 dep_name = posix_path(os.path.relpath(dep_path, gclient_root)) | 385 dep_name = posix_path(os.path.relpath(dep_path, gclient_root)) |
364 (git_rev, svn_rev) = get_git_revision(dep_path, revision) | 386 if options.no_verify_revision: |
365 comment = ('from svn revision %s' % svn_rev) if svn_rev else None | 387 assert is_git_hash(revision), ( |
366 assert git_rev, 'Could not find git revision matching %s.' % revision | 388 'The passed revision %s must be a git hash when skipping revision ' |
389 'verification.' % revision) | |
390 git_rev = revision | |
391 comment = None | |
392 else: | |
393 (git_rev, svn_rev) = get_git_revision(dep_path, revision) | |
394 comment = ('from svn revision %s' % svn_rev) if svn_rev else None | |
395 assert git_rev, 'Could not find git revision matching %s.' % revision | |
367 return update_deps(deps_file, dep_path, dep_name, git_rev, comment) | 396 return update_deps(deps_file, dep_path, dep_name, git_rev, comment) |
368 | 397 |
369 if __name__ == '__main__': | 398 if __name__ == '__main__': |
370 sys.exit(main(sys.argv[1:])) | 399 sys.exit(main(sys.argv[1:])) |
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