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1 #!/usr/bin/env python | |
2 # Copyright 2013 the V8 project authors. All rights reserved. | |
3 # Redistribution and use in source and binary forms, with or without | |
4 # modification, are permitted provided that the following conditions are | |
5 # met: | |
6 # | |
7 # * Redistributions of source code must retain the above copyright | |
8 # notice, this list of conditions and the following disclaimer. | |
9 # * Redistributions in binary form must reproduce the above | |
10 # copyright notice, this list of conditions and the following | |
11 # disclaimer in the documentation and/or other materials provided | |
12 # with the distribution. | |
13 # * Neither the name of Google Inc. nor the names of its | |
14 # contributors may be used to endorse or promote products derived | |
15 # from this software without specific prior written permission. | |
16 # | |
17 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
18 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
19 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
20 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
21 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
22 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
23 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
24 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
25 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
26 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
27 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
28 | |
29 import argparse | |
30 import os | |
31 import sys | |
32 import tempfile | |
33 import urllib2 | |
34 | |
35 from common_includes import * | |
36 | |
37 PUSH_MSG_GIT_SUFFIX = " (based on %s)" | |
38 PUSH_MSG_GIT_RE = re.compile(r".* \(based on (?P<git_rev>[a-fA-F0-9]+)\)$") | |
39 VERSION_RE = re.compile(r"^\d+\.\d+\.\d+(?:\.\d+)?$") | |
40 | |
41 class Preparation(Step): | |
42 MESSAGE = "Preparation." | |
43 | |
44 def RunStep(self): | |
45 self.InitialEnvironmentChecks(self.default_cwd) | |
46 self.CommonPrepare() | |
47 | |
48 # Make sure tags are fetched. | |
49 self.Git("fetch origin +refs/tags/*:refs/tags/*") | |
50 | |
51 if(self["current_branch"] == self.Config("CANDIDATESBRANCH") | |
52 or self["current_branch"] == self.Config("BRANCHNAME")): | |
53 print "Warning: Script started on branch %s" % self["current_branch"] | |
54 | |
55 self.PrepareBranch() | |
56 self.DeleteBranch(self.Config("CANDIDATESBRANCH")) | |
57 | |
58 | |
59 class FreshBranch(Step): | |
60 MESSAGE = "Create a fresh branch." | |
61 | |
62 def RunStep(self): | |
63 self.GitCreateBranch(self.Config("BRANCHNAME"), | |
64 self.vc.RemoteMasterBranch()) | |
65 | |
66 | |
67 class PreparePushRevision(Step): | |
68 MESSAGE = "Check which revision to push." | |
69 | |
70 def RunStep(self): | |
71 if self._options.revision: | |
72 self["push_hash"] = self._options.revision | |
73 else: | |
74 self["push_hash"] = self.GitLog(n=1, format="%H", git_hash="HEAD") | |
75 if not self["push_hash"]: # pragma: no cover | |
76 self.Die("Could not determine the git hash for the push.") | |
77 | |
78 | |
79 class DetectLastPush(Step): | |
80 MESSAGE = "Detect commit ID of last push to CANDIDATES." | |
81 | |
82 def RunStep(self): | |
83 last_push = self._options.last_push or self.FindLastCandidatesPush() | |
84 while True: | |
85 # Print assumed commit, circumventing git's pager. | |
86 print self.GitLog(n=1, git_hash=last_push) | |
87 if self.Confirm( | |
88 "Is the commit printed above the last push to candidates?"): | |
89 break | |
90 last_push = self.FindLastCandidatesPush(parent_hash=last_push) | |
91 | |
92 if self._options.last_master: | |
93 # Read the master revision of the last push from a command-line option. | |
94 last_push_master = self._options.last_master | |
95 else: | |
96 # Retrieve the master revision of the last push from the text in | |
97 # the push commit message. | |
98 last_push_title = self.GitLog(n=1, format="%s", git_hash=last_push) | |
99 last_push_master = PUSH_MSG_GIT_RE.match( | |
100 last_push_title).group("git_rev") | |
101 | |
102 if not last_push_master: # pragma: no cover | |
103 self.Die( | |
104 "Could not retrieve master git hash for candidates push %s" | |
105 % last_push) | |
106 | |
107 # This points to the git hash of the last push on candidates. | |
108 self["last_push_candidates"] = last_push | |
109 # This points to the last master revision that went into the last | |
110 # push. | |
111 # TODO(machenbach): Do we need a check to make sure we're not pushing a | |
112 # revision older than the last push? If we do this, the output of the | |
113 # current change log preparation won't make much sense. | |
114 self["last_push_master"] = last_push_master | |
115 | |
116 | |
117 class GetLatestVersion(Step): | |
118 MESSAGE = "Get latest version from tags." | |
119 | |
120 def RunStep(self): | |
121 versions = sorted(filter(VERSION_RE.match, self.vc.GetTags()), | |
122 key=SortingKey, reverse=True) | |
123 self.StoreVersion(versions[0], "latest_") | |
124 self["latest_version"] = self.ArrayToVersion("latest_") | |
125 | |
126 # The version file on master can be used to bump up major/minor at | |
127 # branch time. | |
128 self.GitCheckoutFile(VERSION_FILE, self.vc.RemoteMasterBranch()) | |
129 self.ReadAndPersistVersion("master_") | |
130 self["master_version"] = self.ArrayToVersion("master_") | |
131 | |
132 if SortingKey(self["master_version"]) > SortingKey(self["latest_version"]): | |
133 self["latest_version"] = self["master_version"] | |
134 self.StoreVersion(self["latest_version"], "latest_") | |
135 | |
136 print "Determined latest version %s" % self["latest_version"] | |
137 | |
138 | |
139 class IncrementVersion(Step): | |
140 MESSAGE = "Increment version number." | |
141 | |
142 def RunStep(self): | |
143 # Variables prefixed with 'new_' contain the new version numbers for the | |
144 # ongoing candidates push. | |
145 self["new_major"] = self["latest_major"] | |
146 self["new_minor"] = self["latest_minor"] | |
147 self["new_build"] = str(int(self["latest_build"]) + 1) | |
148 | |
149 # Make sure patch level is 0 in a new push. | |
150 self["new_patch"] = "0" | |
151 | |
152 self["version"] = "%s.%s.%s" % (self["new_major"], | |
153 self["new_minor"], | |
154 self["new_build"]) | |
155 | |
156 | |
157 class PrepareChangeLog(Step): | |
158 MESSAGE = "Prepare raw ChangeLog entry." | |
159 | |
160 def Reload(self, body): | |
161 """Attempts to reload the commit message from rietveld in order to allow | |
162 late changes to the LOG flag. Note: This is brittle to future changes of | |
163 the web page name or structure. | |
164 """ | |
165 match = re.search(r"^Review URL: https://codereview\.chromium\.org/(\d+)$", | |
166 body, flags=re.M) | |
167 if match: | |
168 cl_url = ("https://codereview.chromium.org/%s/description" | |
169 % match.group(1)) | |
170 try: | |
171 # Fetch from Rietveld but only retry once with one second delay since | |
172 # there might be many revisions. | |
173 body = self.ReadURL(cl_url, wait_plan=[1]) | |
174 except urllib2.URLError: # pragma: no cover | |
175 pass | |
176 return body | |
177 | |
178 def RunStep(self): | |
179 self["date"] = self.GetDate() | |
180 output = "%s: Version %s\n\n" % (self["date"], self["version"]) | |
181 TextToFile(output, self.Config("CHANGELOG_ENTRY_FILE")) | |
182 commits = self.GitLog(format="%H", | |
183 git_hash="%s..%s" % (self["last_push_master"], | |
184 self["push_hash"])) | |
185 | |
186 # Cache raw commit messages. | |
187 commit_messages = [ | |
188 [ | |
189 self.GitLog(n=1, format="%s", git_hash=commit), | |
190 self.Reload(self.GitLog(n=1, format="%B", git_hash=commit)), | |
191 self.GitLog(n=1, format="%an", git_hash=commit), | |
192 ] for commit in commits.splitlines() | |
193 ] | |
194 | |
195 # Auto-format commit messages. | |
196 body = MakeChangeLogBody(commit_messages, auto_format=True) | |
197 AppendToFile(body, self.Config("CHANGELOG_ENTRY_FILE")) | |
198 | |
199 msg = (" Performance and stability improvements on all platforms." | |
200 "\n#\n# The change log above is auto-generated. Please review if " | |
201 "all relevant\n# commit messages from the list below are included." | |
202 "\n# All lines starting with # will be stripped.\n#\n") | |
203 AppendToFile(msg, self.Config("CHANGELOG_ENTRY_FILE")) | |
204 | |
205 # Include unformatted commit messages as a reference in a comment. | |
206 comment_body = MakeComment(MakeChangeLogBody(commit_messages)) | |
207 AppendToFile(comment_body, self.Config("CHANGELOG_ENTRY_FILE")) | |
208 | |
209 | |
210 class EditChangeLog(Step): | |
211 MESSAGE = "Edit ChangeLog entry." | |
212 | |
213 def RunStep(self): | |
214 print ("Please press <Return> to have your EDITOR open the ChangeLog " | |
215 "entry, then edit its contents to your liking. When you're done, " | |
216 "save the file and exit your EDITOR. ") | |
217 self.ReadLine(default="") | |
218 self.Editor(self.Config("CHANGELOG_ENTRY_FILE")) | |
219 | |
220 # Strip comments and reformat with correct indentation. | |
221 changelog_entry = FileToText(self.Config("CHANGELOG_ENTRY_FILE")).rstrip() | |
222 changelog_entry = StripComments(changelog_entry) | |
223 changelog_entry = "\n".join(map(Fill80, changelog_entry.splitlines())) | |
224 changelog_entry = changelog_entry.lstrip() | |
225 | |
226 if changelog_entry == "": # pragma: no cover | |
227 self.Die("Empty ChangeLog entry.") | |
228 | |
229 # Safe new change log for adding it later to the candidates patch. | |
230 TextToFile(changelog_entry, self.Config("CHANGELOG_ENTRY_FILE")) | |
231 | |
232 | |
233 class StragglerCommits(Step): | |
234 MESSAGE = ("Fetch straggler commits that sneaked in since this script was " | |
235 "started.") | |
236 | |
237 def RunStep(self): | |
238 self.vc.Fetch() | |
239 self.GitCheckout(self.vc.RemoteMasterBranch()) | |
240 | |
241 | |
242 class SquashCommits(Step): | |
243 MESSAGE = "Squash commits into one." | |
244 | |
245 def RunStep(self): | |
246 # Instead of relying on "git rebase -i", we'll just create a diff, because | |
247 # that's easier to automate. | |
248 TextToFile(self.GitDiff(self.vc.RemoteCandidateBranch(), | |
249 self["push_hash"]), | |
250 self.Config("PATCH_FILE")) | |
251 | |
252 # Convert the ChangeLog entry to commit message format. | |
253 text = FileToText(self.Config("CHANGELOG_ENTRY_FILE")) | |
254 | |
255 # Remove date and trailing white space. | |
256 text = re.sub(r"^%s: " % self["date"], "", text.rstrip()) | |
257 | |
258 # Show the used master hash in the commit message. | |
259 suffix = PUSH_MSG_GIT_SUFFIX % self["push_hash"] | |
260 text = MSub(r"^(Version \d+\.\d+\.\d+)$", "\\1%s" % suffix, text) | |
261 | |
262 # Remove indentation and merge paragraphs into single long lines, keeping | |
263 # empty lines between them. | |
264 def SplitMapJoin(split_text, fun, join_text): | |
265 return lambda text: join_text.join(map(fun, text.split(split_text))) | |
266 strip = lambda line: line.strip() | |
267 text = SplitMapJoin("\n\n", SplitMapJoin("\n", strip, " "), "\n\n")(text) | |
268 | |
269 if not text: # pragma: no cover | |
270 self.Die("Commit message editing failed.") | |
271 self["commit_title"] = text.splitlines()[0] | |
272 TextToFile(text, self.Config("COMMITMSG_FILE")) | |
273 | |
274 | |
275 class NewBranch(Step): | |
276 MESSAGE = "Create a new branch from candidates." | |
277 | |
278 def RunStep(self): | |
279 self.GitCreateBranch(self.Config("CANDIDATESBRANCH"), | |
280 self.vc.RemoteCandidateBranch()) | |
281 | |
282 | |
283 class ApplyChanges(Step): | |
284 MESSAGE = "Apply squashed changes." | |
285 | |
286 def RunStep(self): | |
287 self.ApplyPatch(self.Config("PATCH_FILE")) | |
288 os.remove(self.Config("PATCH_FILE")) | |
289 # The change log has been modified by the patch. Reset it to the version | |
290 # on candidates and apply the exact changes determined by this | |
291 # PrepareChangeLog step above. | |
292 self.GitCheckoutFile(CHANGELOG_FILE, self.vc.RemoteCandidateBranch()) | |
293 # The version file has been modified by the patch. Reset it to the version | |
294 # on candidates. | |
295 self.GitCheckoutFile(VERSION_FILE, self.vc.RemoteCandidateBranch()) | |
296 | |
297 | |
298 class CommitSquash(Step): | |
299 MESSAGE = "Commit to local candidates branch." | |
300 | |
301 def RunStep(self): | |
302 # Make a first commit with a slightly different title to not confuse | |
303 # the tagging. | |
304 msg = FileToText(self.Config("COMMITMSG_FILE")).splitlines() | |
305 msg[0] = msg[0].replace("(based on", "(squashed - based on") | |
306 self.GitCommit(message = "\n".join(msg)) | |
307 | |
308 | |
309 class PrepareVersionBranch(Step): | |
310 MESSAGE = "Prepare new branch to commit version and changelog file." | |
311 | |
312 def RunStep(self): | |
313 self.GitCheckout("master") | |
314 self.Git("fetch") | |
315 self.GitDeleteBranch(self.Config("CANDIDATESBRANCH")) | |
316 self.GitCreateBranch(self.Config("CANDIDATESBRANCH"), | |
317 self.vc.RemoteCandidateBranch()) | |
318 | |
319 | |
320 class AddChangeLog(Step): | |
321 MESSAGE = "Add ChangeLog changes to candidates branch." | |
322 | |
323 def RunStep(self): | |
324 changelog_entry = FileToText(self.Config("CHANGELOG_ENTRY_FILE")) | |
325 old_change_log = FileToText(os.path.join(self.default_cwd, CHANGELOG_FILE)) | |
326 new_change_log = "%s\n\n\n%s" % (changelog_entry, old_change_log) | |
327 TextToFile(new_change_log, os.path.join(self.default_cwd, CHANGELOG_FILE)) | |
328 os.remove(self.Config("CHANGELOG_ENTRY_FILE")) | |
329 | |
330 | |
331 class SetVersion(Step): | |
332 MESSAGE = "Set correct version for candidates." | |
333 | |
334 def RunStep(self): | |
335 self.SetVersion(os.path.join(self.default_cwd, VERSION_FILE), "new_") | |
336 | |
337 | |
338 class CommitCandidate(Step): | |
339 MESSAGE = "Commit version and changelog to local candidates branch." | |
340 | |
341 def RunStep(self): | |
342 self.GitCommit(file_name = self.Config("COMMITMSG_FILE")) | |
343 os.remove(self.Config("COMMITMSG_FILE")) | |
344 | |
345 | |
346 class SanityCheck(Step): | |
347 MESSAGE = "Sanity check." | |
348 | |
349 def RunStep(self): | |
350 # TODO(machenbach): Run presubmit script here as it is now missing in the | |
351 # prepare push process. | |
352 if not self.Confirm("Please check if your local checkout is sane: Inspect " | |
353 "%s, compile, run tests. Do you want to commit this new candidates " | |
354 "revision to the repository?" % VERSION_FILE): | |
355 self.Die("Execution canceled.") # pragma: no cover | |
356 | |
357 | |
358 class Land(Step): | |
359 MESSAGE = "Land the patch." | |
360 | |
361 def RunStep(self): | |
362 self.vc.CLLand() | |
363 | |
364 | |
365 class TagRevision(Step): | |
366 MESSAGE = "Tag the new revision." | |
367 | |
368 def RunStep(self): | |
369 self.vc.Tag( | |
370 self["version"], self.vc.RemoteCandidateBranch(), self["commit_title"]) | |
371 | |
372 | |
373 class CleanUp(Step): | |
374 MESSAGE = "Done!" | |
375 | |
376 def RunStep(self): | |
377 print("Congratulations, you have successfully created the candidates " | |
378 "revision %s." | |
379 % self["version"]) | |
380 | |
381 self.CommonCleanup() | |
382 if self.Config("CANDIDATESBRANCH") != self["current_branch"]: | |
383 self.GitDeleteBranch(self.Config("CANDIDATESBRANCH")) | |
384 | |
385 | |
386 class PushToCandidates(ScriptsBase): | |
387 def _PrepareOptions(self, parser): | |
388 group = parser.add_mutually_exclusive_group() | |
389 group.add_argument("-f", "--force", | |
390 help="Don't prompt the user.", | |
391 default=False, action="store_true") | |
392 group.add_argument("-m", "--manual", | |
393 help="Prompt the user at every important step.", | |
394 default=False, action="store_true") | |
395 parser.add_argument("-b", "--last-master", | |
396 help=("The git commit ID of the last master " | |
397 "revision that was pushed to candidates. This is" | |
398 " used for the auto-generated ChangeLog entry.")) | |
399 parser.add_argument("-l", "--last-push", | |
400 help="The git commit ID of the last candidates push.") | |
401 parser.add_argument("-R", "--revision", | |
402 help="The git commit ID to push (defaults to HEAD).") | |
403 | |
404 def _ProcessOptions(self, options): # pragma: no cover | |
405 if not options.manual and not options.reviewer: | |
406 print "A reviewer (-r) is required in (semi-)automatic mode." | |
407 return False | |
408 if not options.manual and not options.author: | |
409 print "Specify your chromium.org email with -a in (semi-)automatic mode." | |
410 return False | |
411 | |
412 options.tbr_commit = not options.manual | |
413 return True | |
414 | |
415 def _Config(self): | |
416 return { | |
417 "BRANCHNAME": "prepare-push", | |
418 "CANDIDATESBRANCH": "candidates-push", | |
419 "PERSISTFILE_BASENAME": "/tmp/v8-push-to-candidates-tempfile", | |
420 "CHANGELOG_ENTRY_FILE": | |
421 "/tmp/v8-push-to-candidates-tempfile-changelog-entry", | |
422 "PATCH_FILE": "/tmp/v8-push-to-candidates-tempfile-patch-file", | |
423 "COMMITMSG_FILE": "/tmp/v8-push-to-candidates-tempfile-commitmsg", | |
424 } | |
425 | |
426 def _Steps(self): | |
427 return [ | |
428 Preparation, | |
429 FreshBranch, | |
430 PreparePushRevision, | |
431 DetectLastPush, | |
432 GetLatestVersion, | |
433 IncrementVersion, | |
434 PrepareChangeLog, | |
435 EditChangeLog, | |
436 StragglerCommits, | |
437 SquashCommits, | |
438 NewBranch, | |
439 ApplyChanges, | |
440 CommitSquash, | |
441 SanityCheck, | |
442 Land, | |
443 PrepareVersionBranch, | |
444 AddChangeLog, | |
445 SetVersion, | |
446 CommitCandidate, | |
447 Land, | |
448 TagRevision, | |
449 CleanUp, | |
450 ] | |
451 | |
452 | |
453 if __name__ == "__main__": # pragma: no cover | |
454 sys.exit(PushToCandidates().Run()) | |
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