[release] Merge auto-roll and wrapped chromium-roll scripts.

tools/release/chromium_roll.py

Index: tools/release/chromium_roll.py
diff --git a/tools/release/chromium_roll.py b/tools/release/chromium_roll.py
deleted file mode 100755
index 29aa6b8d5ffda5a5fe2768839ac6e65b2a183aeb..0000000000000000000000000000000000000000
--- a/tools/release/chromium_roll.py
+++ /dev/null
@@ -1,160 +0,0 @@
-#!/usr/bin/env python
-# Copyright 2014 the V8 project authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-import argparse
-import os
-import sys
-
-from common_includes import *
-
-ROLL_SUMMARY = ("Summary of changes available at:\n"
-                "https://chromium.googlesource.com/v8/v8/+log/%s..%s")
-
-ISSUE_MSG = (
-"""Please follow these instructions for assigning/CC'ing issues:
-https://code.google.com/p/v8-wiki/wiki/TriagingIssues
-
-Please close rolling in case of a roll revert:
-https://v8-roll.appspot.com/
-This only works with a Google account.""")
-
-class Preparation(Step):
-  MESSAGE = "Preparation."
-
-  def RunStep(self):
-    # Update v8 remote tracking branches.
-    self.GitFetchOrigin()
-    self.Git("fetch origin +refs/tags/*:refs/tags/*")
-
-
-class PrepareRollCandidate(Step):
-  MESSAGE = "Robustness checks of the roll candidate."
-
-  def RunStep(self):
-    self["roll_title"] = self.GitLog(n=1, format="%s",
-                                     git_hash=self._options.roll)
-
-    # Make sure the last roll and the roll candidate are releases.
-    version = self.GetVersionTag(self._options.roll)
-    assert version, "The revision to roll is not tagged."
-    version = self.GetVersionTag(self._options.last_roll)
-    assert version, "The revision used as last roll is not tagged."
-
-
-class SwitchChromium(Step):
-  MESSAGE = "Switch to Chromium checkout."
-
-  def RunStep(self):
-    cwd = self._options.chromium
-    self.InitialEnvironmentChecks(cwd)
-    # Check for a clean workdir.
-    if not self.GitIsWorkdirClean(cwd=cwd):  # pragma: no cover
-      self.Die("Workspace is not clean. Please commit or undo your changes.")
-    # Assert that the DEPS file is there.
-    if not os.path.exists(os.path.join(cwd, "DEPS")):  # pragma: no cover
-      self.Die("DEPS file not present.")
-
-
-class UpdateChromiumCheckout(Step):
-  MESSAGE = "Update the checkout and create a new branch."
-
-  def RunStep(self):
-    cwd = self._options.chromium
-    self.GitCheckout("master", cwd=cwd)
-    self.DeleteBranch("work-branch", cwd=cwd)
-    self.Command("gclient", "sync --nohooks", cwd=cwd)
-    self.GitPull(cwd=cwd)
-
-    # Update v8 remotes.
-    self.GitFetchOrigin()
-
-    self.GitCreateBranch("work-branch", cwd=cwd)
-
-
-class UploadCL(Step):
-  MESSAGE = "Create and upload CL."
-
-  def RunStep(self):
-    cwd = self._options.chromium
-    # Patch DEPS file.
-    if self.Command("roll-dep-svn", "v8 %s" %
-                    self._options.roll, cwd=cwd) is None:
-      self.Die("Failed to create deps for %s" % self._options.roll)
-
-    message = []
-    message.append("Update V8 to %s." % self["roll_title"].lower())
-
-    message.append(
-        ROLL_SUMMARY % (self._options.last_roll[:8], self._options.roll[:8]))
-
-    message.append(ISSUE_MSG)
-
-    message.append("TBR=%s" % self._options.reviewer)
-    self.GitCommit("\n\n".join(message),  author=self._options.author, cwd=cwd)
-    if not self._options.dry_run:
-      self.GitUpload(author=self._options.author,
-                     force=True,
-                     cq=self._options.use_commit_queue,
-                     cwd=cwd)
-      print "CL uploaded."
-    else:
-      print "Dry run - don't upload."
-
-    self.GitCheckout("master", cwd=cwd)
-    self.GitDeleteBranch("work-branch", cwd=cwd)
-
-class CleanUp(Step):
-  MESSAGE = "Done!"
-
-  def RunStep(self):
-    print("Congratulations, you have successfully rolled %s into "
-          "Chromium."
-          % self._options.roll)
-
-    # Clean up all temporary files.
-    Command("rm", "-f %s*" % self._config["PERSISTFILE_BASENAME"])
-
-
-class ChromiumRoll(ScriptsBase):
-  def _PrepareOptions(self, parser):
-    parser.add_argument("-c", "--chromium", required=True,
-                        help=("The path to your Chromium src/ "
-                              "directory to automate the V8 roll."))
-    parser.add_argument("--last-roll", required=True,
-                        help="The git commit ID of the last rolled version.")
-    parser.add_argument("roll", nargs=1, help="Revision to roll."),
-    parser.add_argument("--use-commit-queue",
-                        help="Check the CQ bit on upload.",
-                        default=False, action="store_true")
-
-  def _ProcessOptions(self, options):  # pragma: no cover
-    if not options.author or not options.reviewer:
-      print "A reviewer (-r) and an author (-a) are required."
-      return False
-
-    options.requires_editor = False
-    options.force = True
-    options.manual = False
-    options.roll = options.roll[0]
-    return True
-
-  def _Config(self):
-    return {
-      "PERSISTFILE_BASENAME": "/tmp/v8-chromium-roll-tempfile",
-    }
-
-  def _Steps(self):
-    return [
-      Preparation,
-      PrepareRollCandidate,
-      SwitchChromium,
-      UpdateChromiumCheckout,
-      UploadCL,
-      CleanUp,
-    ]
-
-
-if __name__ == "__main__":  # pragma: no cover
-  sys.exit(ChromiumRoll().Run())