Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1 | #!/usr/bin/env python |
| 2 | # Copyright 2014 the V8 project authors. All rights reserved. |
| 3 | # Use of this source code is governed by a BSD-style license that can be |
| 4 | # found in the LICENSE file. |
| 5 | |
| 6 | # This script retrieves the history of all V8 branches and trunk revisions and |
| 7 | # their corresponding Chromium revisions. |
| 8 | |
| 9 | # Requires a chromium checkout with branch heads: |
| 10 | # gclient sync --with_branch_heads |
| 11 | # gclient fetch |
| 12 | |
| 13 | import argparse |
| 14 | import csv |
| 15 | import itertools |
| 16 | import json |
| 17 | import os |
| 18 | import re |
| 19 | import sys |
| 20 | |
| 21 | from common_includes import * |
| 22 | |
| 23 | CONFIG = { |
| 24 | "BRANCHNAME": "retrieve-v8-releases", |
| 25 | "PERSISTFILE_BASENAME": "/tmp/v8-releases-tempfile", |
| 26 | } |
| 27 | |
| 28 | # Expression for retrieving the bleeding edge revision from a commit message. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 29 | PUSH_MSG_SVN_RE = re.compile(r".* \(based on bleeding_edge revision r(\d+)\)$") |
| 30 | PUSH_MSG_GIT_RE = re.compile(r".* \(based on ([a-fA-F0-9]+)\)$") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 31 | |
| 32 | # Expression for retrieving the merged patches from a merge commit message |
| 33 | # (old and new format). |
| 34 | MERGE_MESSAGE_RE = re.compile(r"^.*[M|m]erged (.+)(\)| into).*$", re.M) |
| 35 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 36 | CHERRY_PICK_TITLE_GIT_RE = re.compile(r"^.* \(cherry\-pick\)\.?$") |
| 37 | |
| 38 | # New git message for cherry-picked CLs. One message per line. |
| 39 | MERGE_MESSAGE_GIT_RE = re.compile(r"^Merged ([a-fA-F0-9]+)\.?$") |
| 40 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 41 | # Expression for retrieving reverted patches from a commit message (old and |
| 42 | # new format). |
| 43 | ROLLBACK_MESSAGE_RE = re.compile(r"^.*[R|r]ollback of (.+)(\)| in).*$", re.M) |
| 44 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 45 | # New git message for reverted CLs. One message per line. |
| 46 | ROLLBACK_MESSAGE_GIT_RE = re.compile(r"^Rollback of ([a-fA-F0-9]+)\.?$") |
| 47 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 48 | # Expression for retrieving the code review link. |
| 49 | REVIEW_LINK_RE = re.compile(r"^Review URL: (.+)$", re.M) |
| 50 | |
| 51 | # Expression with three versions (historical) for extracting the v8 revision |
| 52 | # from the chromium DEPS file. |
| 53 | DEPS_RE = re.compile(r"""^\s*(?:["']v8_revision["']: ["']""" |
| 54 | """|\(Var\("googlecode_url"\) % "v8"\) \+ "\/trunk@""" |
| 55 | """|"http\:\/\/v8\.googlecode\.com\/svn\/trunk@)""" |
| 56 | """([^"']+)["'].*$""", re.M) |
| 57 | |
| 58 | # Expression to pick tag and revision for bleeding edge tags. To be used with |
| 59 | # output of 'svn log'. |
| 60 | BLEEDING_EDGE_TAGS_RE = re.compile( |
| 61 | r"A \/tags\/([^\s]+) \(from \/branches\/bleeding_edge\:(\d+)\)") |
| 62 | |
| 63 | |
| 64 | def SortBranches(branches): |
| 65 | """Sort branches with version number names.""" |
| 66 | return sorted(branches, key=SortingKey, reverse=True) |
| 67 | |
| 68 | |
| 69 | def FilterDuplicatesAndReverse(cr_releases): |
| 70 | """Returns the chromium releases in reverse order filtered by v8 revision |
| 71 | duplicates. |
| 72 | |
| 73 | cr_releases is a list of [cr_rev, v8_rev] reverse-sorted by cr_rev. |
| 74 | """ |
| 75 | last = "" |
| 76 | result = [] |
| 77 | for release in reversed(cr_releases): |
| 78 | if last == release[1]: |
| 79 | continue |
| 80 | last = release[1] |
| 81 | result.append(release) |
| 82 | return result |
| 83 | |
| 84 | |
| 85 | def BuildRevisionRanges(cr_releases): |
| 86 | """Returns a mapping of v8 revision -> chromium ranges. |
| 87 | The ranges are comma-separated, each range has the form R1:R2. The newest |
| 88 | entry is the only one of the form R1, as there is no end range. |
| 89 | |
| 90 | cr_releases is a list of [cr_rev, v8_rev] reverse-sorted by cr_rev. |
| 91 | cr_rev either refers to a chromium svn revision or a chromium branch number. |
| 92 | """ |
| 93 | range_lists = {} |
| 94 | cr_releases = FilterDuplicatesAndReverse(cr_releases) |
| 95 | |
| 96 | # Visit pairs of cr releases from oldest to newest. |
| 97 | for cr_from, cr_to in itertools.izip( |
| 98 | cr_releases, itertools.islice(cr_releases, 1, None)): |
| 99 | |
| 100 | # Assume the chromium revisions are all different. |
| 101 | assert cr_from[0] != cr_to[0] |
| 102 | |
| 103 | # TODO(machenbach): Subtraction is not git friendly. |
| 104 | ran = "%s:%d" % (cr_from[0], int(cr_to[0]) - 1) |
| 105 | |
| 106 | # Collect the ranges in lists per revision. |
| 107 | range_lists.setdefault(cr_from[1], []).append(ran) |
| 108 | |
| 109 | # Add the newest revision. |
| 110 | if cr_releases: |
| 111 | range_lists.setdefault(cr_releases[-1][1], []).append(cr_releases[-1][0]) |
| 112 | |
| 113 | # Stringify and comma-separate the range lists. |
| 114 | return dict((rev, ", ".join(ran)) for rev, ran in range_lists.iteritems()) |
| 115 | |
| 116 | |
| 117 | def MatchSafe(match): |
| 118 | if match: |
| 119 | return match.group(1) |
| 120 | else: |
| 121 | return "" |
| 122 | |
| 123 | |
| 124 | class Preparation(Step): |
| 125 | MESSAGE = "Preparation." |
| 126 | |
| 127 | def RunStep(self): |
| 128 | self.CommonPrepare() |
| 129 | self.PrepareBranch() |
| 130 | |
| 131 | |
| 132 | class RetrieveV8Releases(Step): |
| 133 | MESSAGE = "Retrieve all V8 releases." |
| 134 | |
| 135 | def ExceedsMax(self, releases): |
| 136 | return (self._options.max_releases > 0 |
| 137 | and len(releases) > self._options.max_releases) |
| 138 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 139 | def GetBleedingEdgeGitFromPush(self, title): |
| 140 | return MatchSafe(PUSH_MSG_GIT_RE.match(title)) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 141 | |
| 142 | def GetMergedPatches(self, body): |
| 143 | patches = MatchSafe(MERGE_MESSAGE_RE.search(body)) |
| 144 | if not patches: |
| 145 | patches = MatchSafe(ROLLBACK_MESSAGE_RE.search(body)) |
| 146 | if patches: |
| 147 | # Indicate reverted patches with a "-". |
| 148 | patches = "-%s" % patches |
| 149 | return patches |
| 150 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 151 | def GetMergedPatchesGit(self, body): |
| 152 | patches = [] |
| 153 | for line in body.splitlines(): |
| 154 | patch = MatchSafe(MERGE_MESSAGE_GIT_RE.match(line)) |
| 155 | if patch: |
| 156 | patches.append(patch) |
| 157 | patch = MatchSafe(ROLLBACK_MESSAGE_GIT_RE.match(line)) |
| 158 | if patch: |
| 159 | patches.append("-%s" % patch) |
| 160 | return ", ".join(patches) |
| 161 | |
| 162 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 163 | def GetReleaseDict( |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 164 | self, git_hash, bleeding_edge_rev, bleeding_edge_git, branch, version, |
| 165 | patches, cl_body): |
| 166 | revision = self.GetCommitPositionNumber(git_hash) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 167 | return { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 168 | # The cr commit position number on the branch. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 169 | "revision": revision, |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 170 | # The git revision on the branch. |
| 171 | "revision_git": git_hash, |
| 172 | # The cr commit position number on master. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 173 | "bleeding_edge": bleeding_edge_rev, |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 174 | # The same for git. |
| 175 | "bleeding_edge_git": bleeding_edge_git, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 176 | # The branch name. |
| 177 | "branch": branch, |
| 178 | # The version for displaying in the form 3.26.3 or 3.26.3.12. |
| 179 | "version": version, |
| 180 | # The date of the commit. |
| 181 | "date": self.GitLog(n=1, format="%ci", git_hash=git_hash), |
| 182 | # Merged patches if available in the form 'r1234, r2345'. |
| 183 | "patches_merged": patches, |
| 184 | # Default for easier output formatting. |
| 185 | "chromium_revision": "", |
| 186 | # Default for easier output formatting. |
| 187 | "chromium_branch": "", |
| 188 | # Link to the CL on code review. Trunk pushes are not uploaded, so this |
| 189 | # field will be populated below with the recent roll CL link. |
| 190 | "review_link": MatchSafe(REVIEW_LINK_RE.search(cl_body)), |
| 191 | # Link to the commit message on google code. |
| 192 | "revision_link": ("https://code.google.com/p/v8/source/detail?r=%s" |
| 193 | % revision), |
| 194 | } |
| 195 | |
| 196 | def GetRelease(self, git_hash, branch): |
| 197 | self.ReadAndPersistVersion() |
| 198 | base_version = [self["major"], self["minor"], self["build"]] |
| 199 | version = ".".join(base_version) |
| 200 | body = self.GitLog(n=1, format="%B", git_hash=git_hash) |
| 201 | |
| 202 | patches = "" |
| 203 | if self["patch"] != "0": |
| 204 | version += ".%s" % self["patch"] |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 205 | if CHERRY_PICK_TITLE_GIT_RE.match(body.splitlines()[0]): |
| 206 | patches = self.GetMergedPatchesGit(body) |
| 207 | else: |
| 208 | patches = self.GetMergedPatches(body) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 209 | |
| 210 | title = self.GitLog(n=1, format="%s", git_hash=git_hash) |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 211 | bleeding_edge_git = self.GetBleedingEdgeGitFromPush(title) |
| 212 | bleeding_edge_position = "" |
| 213 | if bleeding_edge_git: |
| 214 | bleeding_edge_position = self.GetCommitPositionNumber(bleeding_edge_git) |
| 215 | # TODO(machenbach): Add the commit position number. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 216 | return self.GetReleaseDict( |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 217 | git_hash, bleeding_edge_position, bleeding_edge_git, branch, version, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 218 | patches, body), self["patch"] |
| 219 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 220 | def GetReleasesFromMaster(self): |
| 221 | # TODO(machenbach): Implement this in git as soon as we tag again on |
| 222 | # master. |
| 223 | # tag_text = self.SVN("log https://v8.googlecode.com/svn/tags -v |
| 224 | # --limit 20") |
| 225 | # releases = [] |
| 226 | # for (tag, revision) in re.findall(BLEEDING_EDGE_TAGS_RE, tag_text): |
| 227 | # git_hash = self.vc.SvnGit(revision) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 228 | |
| 229 | # Add bleeding edge release. It does not contain patches or a code |
| 230 | # review link, as tags are not uploaded. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 231 | # releases.append(self.GetReleaseDict( |
| 232 | # git_hash, revision, git_hash, self.vc.MasterBranch(), tag, "", "")) |
| 233 | return [] |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 234 | |
| 235 | def GetReleasesFromBranch(self, branch): |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 236 | self.GitReset(self.vc.RemoteBranch(branch)) |
| 237 | if branch == self.vc.MasterBranch(): |
| 238 | return self.GetReleasesFromMaster() |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 239 | |
| 240 | releases = [] |
| 241 | try: |
| 242 | for git_hash in self.GitLog(format="%H").splitlines(): |
| 243 | if VERSION_FILE not in self.GitChangedFiles(git_hash): |
| 244 | continue |
| 245 | if self.ExceedsMax(releases): |
| 246 | break # pragma: no cover |
| 247 | if not self.GitCheckoutFileSafe(VERSION_FILE, git_hash): |
| 248 | break # pragma: no cover |
| 249 | |
| 250 | release, patch_level = self.GetRelease(git_hash, branch) |
| 251 | releases.append(release) |
| 252 | |
| 253 | # Follow branches only until their creation point. |
| 254 | # TODO(machenbach): This omits patches if the version file wasn't |
| 255 | # manipulated correctly. Find a better way to detect the point where |
| 256 | # the parent of the branch head leads to the trunk branch. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 257 | if branch != self.vc.CandidateBranch() and patch_level == "0": |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 258 | break |
| 259 | |
| 260 | # Allow Ctrl-C interrupt. |
| 261 | except (KeyboardInterrupt, SystemExit): # pragma: no cover |
| 262 | pass |
| 263 | |
| 264 | # Clean up checked-out version file. |
| 265 | self.GitCheckoutFileSafe(VERSION_FILE, "HEAD") |
| 266 | return releases |
| 267 | |
| 268 | def RunStep(self): |
| 269 | self.GitCreateBranch(self._config["BRANCHNAME"]) |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 270 | branches = self.vc.GetBranches() |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 271 | releases = [] |
| 272 | if self._options.branch == 'recent': |
| 273 | # Get only recent development on trunk, beta and stable. |
| 274 | if self._options.max_releases == 0: # pragma: no cover |
| 275 | self._options.max_releases = 10 |
| 276 | beta, stable = SortBranches(branches)[0:2] |
| 277 | releases += self.GetReleasesFromBranch(stable) |
| 278 | releases += self.GetReleasesFromBranch(beta) |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 279 | releases += self.GetReleasesFromBranch(self.vc.CandidateBranch()) |
| 280 | releases += self.GetReleasesFromBranch(self.vc.MasterBranch()) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 281 | elif self._options.branch == 'all': # pragma: no cover |
| 282 | # Retrieve the full release history. |
| 283 | for branch in branches: |
| 284 | releases += self.GetReleasesFromBranch(branch) |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 285 | releases += self.GetReleasesFromBranch(self.vc.CandidateBranch()) |
| 286 | releases += self.GetReleasesFromBranch(self.vc.MasterBranch()) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 287 | else: # pragma: no cover |
| 288 | # Retrieve history for a specified branch. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 289 | assert self._options.branch in (branches + |
| 290 | [self.vc.CandidateBranch(), self.vc.MasterBranch()]) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 291 | releases += self.GetReleasesFromBranch(self._options.branch) |
| 292 | |
| 293 | self["releases"] = sorted(releases, |
| 294 | key=lambda r: SortingKey(r["version"]), |
| 295 | reverse=True) |
| 296 | |
| 297 | |
| 298 | class SwitchChromium(Step): |
| 299 | MESSAGE = "Switch to Chromium checkout." |
| 300 | |
| 301 | def RunStep(self): |
| 302 | cwd = self._options.chromium |
| 303 | # Check for a clean workdir. |
| 304 | if not self.GitIsWorkdirClean(cwd=cwd): # pragma: no cover |
| 305 | self.Die("Workspace is not clean. Please commit or undo your changes.") |
| 306 | # Assert that the DEPS file is there. |
| 307 | if not os.path.exists(os.path.join(cwd, "DEPS")): # pragma: no cover |
| 308 | self.Die("DEPS file not present.") |
| 309 | |
| 310 | |
| 311 | class UpdateChromiumCheckout(Step): |
| 312 | MESSAGE = "Update the checkout and create a new branch." |
| 313 | |
| 314 | def RunStep(self): |
| 315 | cwd = self._options.chromium |
| 316 | self.GitCheckout("master", cwd=cwd) |
| 317 | self.GitPull(cwd=cwd) |
| 318 | self.GitCreateBranch(self.Config("BRANCHNAME"), cwd=cwd) |
| 319 | |
| 320 | |
| 321 | def ConvertToCommitNumber(step, revision): |
| 322 | # Simple check for git hashes. |
| 323 | if revision.isdigit() and len(revision) < 8: |
| 324 | return revision |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 325 | return step.GetCommitPositionNumber( |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 326 | revision, cwd=os.path.join(step._options.chromium, "v8")) |
| 327 | |
| 328 | |
| 329 | class RetrieveChromiumV8Releases(Step): |
| 330 | MESSAGE = "Retrieve V8 releases from Chromium DEPS." |
| 331 | |
| 332 | def RunStep(self): |
| 333 | cwd = self._options.chromium |
| 334 | releases = filter( |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 335 | lambda r: r["branch"] in [self.vc.CandidateBranch(), |
| 336 | self.vc.MasterBranch()], |
| 337 | self["releases"]) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 338 | if not releases: # pragma: no cover |
| 339 | print "No releases detected. Skipping chromium history." |
| 340 | return True |
| 341 | |
| 342 | # Update v8 checkout in chromium. |
| 343 | self.GitFetchOrigin(cwd=os.path.join(cwd, "v8")) |
| 344 | |
| 345 | oldest_v8_rev = int(releases[-1]["revision"]) |
| 346 | |
| 347 | cr_releases = [] |
| 348 | try: |
| 349 | for git_hash in self.GitLog( |
| 350 | format="%H", grep="V8", cwd=cwd).splitlines(): |
| 351 | if "DEPS" not in self.GitChangedFiles(git_hash, cwd=cwd): |
| 352 | continue |
| 353 | if not self.GitCheckoutFileSafe("DEPS", git_hash, cwd=cwd): |
| 354 | break # pragma: no cover |
| 355 | deps = FileToText(os.path.join(cwd, "DEPS")) |
| 356 | match = DEPS_RE.search(deps) |
| 357 | if match: |
| 358 | cr_rev = self.GetCommitPositionNumber(git_hash, cwd=cwd) |
| 359 | if cr_rev: |
| 360 | v8_rev = ConvertToCommitNumber(self, match.group(1)) |
| 361 | cr_releases.append([cr_rev, v8_rev]) |
| 362 | |
| 363 | # Stop after reaching beyond the last v8 revision we want to update. |
| 364 | # We need a small buffer for possible revert/reland frenzies. |
| 365 | # TODO(machenbach): Subtraction is not git friendly. |
| 366 | if int(v8_rev) < oldest_v8_rev - 100: |
| 367 | break # pragma: no cover |
| 368 | |
| 369 | # Allow Ctrl-C interrupt. |
| 370 | except (KeyboardInterrupt, SystemExit): # pragma: no cover |
| 371 | pass |
| 372 | |
| 373 | # Clean up. |
| 374 | self.GitCheckoutFileSafe("DEPS", "HEAD", cwd=cwd) |
| 375 | |
| 376 | # Add the chromium ranges to the v8 trunk and bleeding_edge releases. |
| 377 | all_ranges = BuildRevisionRanges(cr_releases) |
| 378 | releases_dict = dict((r["revision"], r) for r in releases) |
| 379 | for revision, ranges in all_ranges.iteritems(): |
| 380 | releases_dict.get(revision, {})["chromium_revision"] = ranges |
| 381 | |
| 382 | |
| 383 | # TODO(machenbach): Unify common code with method above. |
| 384 | class RietrieveChromiumBranches(Step): |
| 385 | MESSAGE = "Retrieve Chromium branch information." |
| 386 | |
| 387 | def RunStep(self): |
| 388 | cwd = self._options.chromium |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 389 | trunk_releases = filter(lambda r: r["branch"] == self.vc.CandidateBranch(), |
| 390 | self["releases"]) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 391 | if not trunk_releases: # pragma: no cover |
| 392 | print "No trunk releases detected. Skipping chromium history." |
| 393 | return True |
| 394 | |
| 395 | oldest_v8_rev = int(trunk_releases[-1]["revision"]) |
| 396 | |
| 397 | # Filter out irrelevant branches. |
| 398 | branches = filter(lambda r: re.match(r"branch-heads/\d+", r), |
| 399 | self.GitRemotes(cwd=cwd)) |
| 400 | |
| 401 | # Transform into pure branch numbers. |
| 402 | branches = map(lambda r: int(re.match(r"branch-heads/(\d+)", r).group(1)), |
| 403 | branches) |
| 404 | |
| 405 | branches = sorted(branches, reverse=True) |
| 406 | |
| 407 | cr_branches = [] |
| 408 | try: |
| 409 | for branch in branches: |
| 410 | if not self.GitCheckoutFileSafe("DEPS", |
| 411 | "branch-heads/%d" % branch, |
| 412 | cwd=cwd): |
| 413 | break # pragma: no cover |
| 414 | deps = FileToText(os.path.join(cwd, "DEPS")) |
| 415 | match = DEPS_RE.search(deps) |
| 416 | if match: |
| 417 | v8_rev = ConvertToCommitNumber(self, match.group(1)) |
| 418 | cr_branches.append([str(branch), v8_rev]) |
| 419 | |
| 420 | # Stop after reaching beyond the last v8 revision we want to update. |
| 421 | # We need a small buffer for possible revert/reland frenzies. |
| 422 | # TODO(machenbach): Subtraction is not git friendly. |
| 423 | if int(v8_rev) < oldest_v8_rev - 100: |
| 424 | break # pragma: no cover |
| 425 | |
| 426 | # Allow Ctrl-C interrupt. |
| 427 | except (KeyboardInterrupt, SystemExit): # pragma: no cover |
| 428 | pass |
| 429 | |
| 430 | # Clean up. |
| 431 | self.GitCheckoutFileSafe("DEPS", "HEAD", cwd=cwd) |
| 432 | |
| 433 | # Add the chromium branches to the v8 trunk releases. |
| 434 | all_ranges = BuildRevisionRanges(cr_branches) |
| 435 | trunk_dict = dict((r["revision"], r) for r in trunk_releases) |
| 436 | for revision, ranges in all_ranges.iteritems(): |
| 437 | trunk_dict.get(revision, {})["chromium_branch"] = ranges |
| 438 | |
| 439 | |
| 440 | class CleanUp(Step): |
| 441 | MESSAGE = "Clean up." |
| 442 | |
| 443 | def RunStep(self): |
| 444 | self.GitCheckout("master", cwd=self._options.chromium) |
| 445 | self.GitDeleteBranch(self.Config("BRANCHNAME"), cwd=self._options.chromium) |
| 446 | self.CommonCleanup() |
| 447 | |
| 448 | |
| 449 | class WriteOutput(Step): |
| 450 | MESSAGE = "Print output." |
| 451 | |
| 452 | def Run(self): |
| 453 | if self._options.csv: |
| 454 | with open(self._options.csv, "w") as f: |
| 455 | writer = csv.DictWriter(f, |
| 456 | ["version", "branch", "revision", |
| 457 | "chromium_revision", "patches_merged"], |
| 458 | restval="", |
| 459 | extrasaction="ignore") |
| 460 | for release in self["releases"]: |
| 461 | writer.writerow(release) |
| 462 | if self._options.json: |
| 463 | with open(self._options.json, "w") as f: |
| 464 | f.write(json.dumps(self["releases"])) |
| 465 | if not self._options.csv and not self._options.json: |
| 466 | print self["releases"] # pragma: no cover |
| 467 | |
| 468 | |
| 469 | class Releases(ScriptsBase): |
| 470 | def _PrepareOptions(self, parser): |
| 471 | parser.add_argument("-b", "--branch", default="recent", |
| 472 | help=("The branch to analyze. If 'all' is specified, " |
| 473 | "analyze all branches. If 'recent' (default) " |
| 474 | "is specified, track beta, stable and trunk.")) |
| 475 | parser.add_argument("-c", "--chromium", |
| 476 | help=("The path to your Chromium src/ " |
| 477 | "directory to automate the V8 roll.")) |
| 478 | parser.add_argument("--csv", help="Path to a CSV file for export.") |
| 479 | parser.add_argument("-m", "--max-releases", type=int, default=0, |
| 480 | help="The maximum number of releases to track.") |
| 481 | parser.add_argument("--json", help="Path to a JSON file for export.") |
| 482 | |
| 483 | def _ProcessOptions(self, options): # pragma: no cover |
| 484 | return True |
| 485 | |
| 486 | def _Config(self): |
| 487 | return { |
| 488 | "BRANCHNAME": "retrieve-v8-releases", |
| 489 | "PERSISTFILE_BASENAME": "/tmp/v8-releases-tempfile", |
| 490 | } |
| 491 | |
| 492 | def _Steps(self): |
| 493 | return [ |
| 494 | Preparation, |
| 495 | RetrieveV8Releases, |
| 496 | SwitchChromium, |
| 497 | UpdateChromiumCheckout, |
| 498 | RetrieveChromiumV8Releases, |
| 499 | RietrieveChromiumBranches, |
| 500 | CleanUp, |
| 501 | WriteOutput, |
| 502 | ] |
| 503 | |
| 504 | |
| 505 | if __name__ == "__main__": # pragma: no cover |
| 506 | sys.exit(Releases().Run()) |