| #!/usr/bin/env python |
| # Copyright 2014 the V8 project authors. All rights reserved. |
| # 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 Google Inc. 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. |
| |
| import argparse |
| from collections import OrderedDict |
| import sys |
| |
| from common_includes import * |
| from git_recipes import GetCommitMessageFooterMap |
| |
| def IsSvnNumber(rev): |
| return rev.isdigit() and len(rev) < 8 |
| |
| class Preparation(Step): |
| MESSAGE = "Preparation." |
| |
| def RunStep(self): |
| if os.path.exists(self.Config("ALREADY_MERGING_SENTINEL_FILE")): |
| if self._options.force: |
| os.remove(self.Config("ALREADY_MERGING_SENTINEL_FILE")) |
| elif self._options.step == 0: # pragma: no cover |
| self.Die("A merge is already in progress") |
| open(self.Config("ALREADY_MERGING_SENTINEL_FILE"), "a").close() |
| |
| self.InitialEnvironmentChecks(self.default_cwd) |
| |
| self["merge_to_branch"] = self._options.branch |
| |
| self.CommonPrepare() |
| self.PrepareBranch() |
| |
| |
| class CreateBranch(Step): |
| MESSAGE = "Create a fresh branch for the patch." |
| |
| def RunStep(self): |
| self.GitCreateBranch(self.Config("BRANCHNAME"), |
| self.vc.RemoteBranch(self["merge_to_branch"])) |
| |
| |
| class SearchArchitecturePorts(Step): |
| MESSAGE = "Search for corresponding architecture ports." |
| |
| def RunStep(self): |
| self["full_revision_list"] = list(OrderedDict.fromkeys( |
| self._options.revisions)) |
| port_revision_list = [] |
| for revision in self["full_revision_list"]: |
| # Search for commits which matches the "Port XXX" pattern. |
| git_hashes = self.GitLog(reverse=True, format="%H", |
| grep="^[Pp]ort %s" % revision, |
| branch=self.vc.RemoteMasterBranch()) |
| for git_hash in git_hashes.splitlines(): |
| revision_title = self.GitLog(n=1, format="%s", git_hash=git_hash) |
| |
| # Is this revision included in the original revision list? |
| if git_hash in self["full_revision_list"]: |
| print("Found port of %s -> %s (already included): %s" |
| % (revision, git_hash, revision_title)) |
| else: |
| print("Found port of %s -> %s: %s" |
| % (revision, git_hash, revision_title)) |
| port_revision_list.append(git_hash) |
| |
| # Do we find any port? |
| if len(port_revision_list) > 0: |
| if self.Confirm("Automatically add corresponding ports (%s)?" |
| % ", ".join(port_revision_list)): |
| #: 'y': Add ports to revision list. |
| self["full_revision_list"].extend(port_revision_list) |
| |
| |
| class CreateCommitMessage(Step): |
| MESSAGE = "Create commit message." |
| |
| def _create_commit_description(self, commit_hash): |
| patch_merge_desc = self.GitLog(n=1, format="%s", git_hash=commit_hash) |
| description = "Merged: " + patch_merge_desc + "\n" |
| description += "Revision: " + commit_hash + "\n\n" |
| return description |
| |
| def RunStep(self): |
| |
| # Stringify: ["abcde", "12345"] -> "abcde, 12345" |
| self["revision_list"] = ", ".join(self["full_revision_list"]) |
| |
| if not self["revision_list"]: # pragma: no cover |
| self.Die("Revision list is empty.") |
| |
| msg_pieces = [] |
| |
| if len(self["full_revision_list"]) > 1: |
| self["commit_title"] = "Merged: Squashed multiple commits." |
| for commit_hash in self["full_revision_list"]: |
| msg_pieces.append(self._create_commit_description(commit_hash)) |
| else: |
| commit_hash = self["full_revision_list"][0] |
| full_description = self._create_commit_description(commit_hash).split("\n") |
| |
| #Truncate title because of code review tool |
| title = full_description[0] |
| if len(title) > 100: |
| title = title[:96] + " ..." |
| |
| self["commit_title"] = title |
| msg_pieces.append(full_description[1] + "\n\n") |
| |
| bugs = [] |
| for commit_hash in self["full_revision_list"]: |
| msg = self.GitLog(n=1, git_hash=commit_hash) |
| for bug in re.findall(r"^[ \t]*BUG[ \t]*=[ \t]*(.*?)[ \t]*$", msg, re.M): |
| bugs.extend(s.strip() for s in bug.split(",")) |
| gerrit_bug = GetCommitMessageFooterMap(msg).get('Bug', '') |
| bugs.extend(s.strip() for s in gerrit_bug.split(",")) |
| bug_aggregate = ",".join( |
| sorted(filter(lambda s: s and s != "none", set(bugs)))) |
| if bug_aggregate: |
| # TODO(machenbach): Use proper gerrit footer for bug after switch to |
| # gerrit. Keep BUG= for now for backwards-compatibility. |
| msg_pieces.append("BUG=%s\nLOG=N\n" % bug_aggregate) |
| |
| msg_pieces.append("NOTRY=true\nNOPRESUBMIT=true\nNOTREECHECKS=true\n") |
| |
| self["new_commit_msg"] = "".join(msg_pieces) |
| |
| |
| class ApplyPatches(Step): |
| MESSAGE = "Apply patches for selected revisions." |
| |
| def RunStep(self): |
| for commit_hash in self["full_revision_list"]: |
| print("Applying patch for %s to %s..." |
| % (commit_hash, self["merge_to_branch"])) |
| patch = self.GitGetPatch(commit_hash) |
| TextToFile(patch, self.Config("TEMPORARY_PATCH_FILE")) |
| self.ApplyPatch(self.Config("TEMPORARY_PATCH_FILE")) |
| if self._options.patch: |
| self.ApplyPatch(self._options.patch) |
| |
| class CommitLocal(Step): |
| MESSAGE = "Commit to local branch." |
| |
| def RunStep(self): |
| # Add a commit message title. |
| self["new_commit_msg"] = "%s\n\n%s" % (self["commit_title"], |
| self["new_commit_msg"]) |
| TextToFile(self["new_commit_msg"], self.Config("COMMITMSG_FILE")) |
| self.GitCommit(file_name=self.Config("COMMITMSG_FILE")) |
| |
| class CommitRepository(Step): |
| MESSAGE = "Commit to the repository." |
| |
| def RunStep(self): |
| self.GitCheckout(self.Config("BRANCHNAME")) |
| self.WaitForLGTM() |
| self.GitPresubmit() |
| self.vc.CLLand() |
| |
| class CleanUp(Step): |
| MESSAGE = "Cleanup." |
| |
| def RunStep(self): |
| self.CommonCleanup() |
| print "*** SUMMARY ***" |
| print "branch: %s" % self["merge_to_branch"] |
| if self["revision_list"]: |
| print "patches: %s" % self["revision_list"] |
| |
| |
| class MergeToBranch(ScriptsBase): |
| def _Description(self): |
| return ("Performs the necessary steps to merge revisions from " |
| "master to release branches like 4.5. This script does not " |
| "version the commit. See http://goo.gl/9ke2Vw for more " |
| "information.") |
| |
| def _PrepareOptions(self, parser): |
| group = parser.add_mutually_exclusive_group(required=True) |
| group.add_argument("--branch", help="The branch to merge to.") |
| parser.add_argument("revisions", nargs="*", |
| help="The revisions to merge.") |
| parser.add_argument("-f", "--force", |
| help="Delete sentinel file.", |
| default=False, action="store_true") |
| parser.add_argument("-m", "--message", |
| help="A commit message for the patch.") |
| parser.add_argument("-p", "--patch", |
| help="A patch file to apply as part of the merge.") |
| |
| def _ProcessOptions(self, options): |
| if len(options.revisions) < 1: |
| if not options.patch: |
| print "Either a patch file or revision numbers must be specified" |
| return False |
| if not options.message: |
| print "You must specify a merge comment if no patches are specified" |
| return False |
| options.bypass_upload_hooks = True |
| # CC ulan to make sure that fixes are merged to Google3. |
| options.cc = "ulan@chromium.org" |
| |
| if len(options.branch.split('.')) > 2: |
| print ("This script does not support merging to roll branches. " |
| "Please use tools/release/roll_merge.py for this use case.") |
| return False |
| |
| # Make sure to use git hashes in the new workflows. |
| for revision in options.revisions: |
| if (IsSvnNumber(revision) or |
| (revision[0:1] == "r" and IsSvnNumber(revision[1:]))): |
| print "Please provide full git hashes of the patches to merge." |
| print "Got: %s" % revision |
| return False |
| return True |
| |
| def _Config(self): |
| return { |
| "BRANCHNAME": "prepare-merge", |
| "PERSISTFILE_BASENAME": "/tmp/v8-merge-to-branch-tempfile", |
| "ALREADY_MERGING_SENTINEL_FILE": |
| "/tmp/v8-merge-to-branch-tempfile-already-merging", |
| "TEMPORARY_PATCH_FILE": "/tmp/v8-prepare-merge-tempfile-temporary-patch", |
| "COMMITMSG_FILE": "/tmp/v8-prepare-merge-tempfile-commitmsg", |
| } |
| |
| def _Steps(self): |
| return [ |
| Preparation, |
| CreateBranch, |
| SearchArchitecturePorts, |
| CreateCommitMessage, |
| ApplyPatches, |
| CommitLocal, |
| UploadStep, |
| CommitRepository, |
| CleanUp, |
| ] |
| |
| |
| if __name__ == "__main__": # pragma: no cover |
| sys.exit(MergeToBranch().Run()) |
