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441 lines
16 KiB
441 lines
16 KiB
#!/usr/bin/env python
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# Copyright 2013 the V8 project authors. All rights reserved.
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following
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# disclaimer in the documentation and/or other materials provided
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# with the distribution.
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# * Neither the name of Google Inc. nor the names of its
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# contributors may be used to endorse or promote products derived
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# from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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import argparse
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import os
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import sys
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import tempfile
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import urllib2
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from common_includes import *
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PUSH_MSG_GIT_SUFFIX = " (based on %s)"
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PUSH_MSG_GIT_RE = re.compile(r".* \(based on (?P<git_rev>[a-fA-F0-9]+)\)$")
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class Preparation(Step):
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MESSAGE = "Preparation."
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def RunStep(self):
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self.InitialEnvironmentChecks(self.default_cwd)
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self.CommonPrepare()
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if(self["current_branch"] == self.Config("TRUNKBRANCH")
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or self["current_branch"] == self.Config("BRANCHNAME")):
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print "Warning: Script started on branch %s" % self["current_branch"]
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self.PrepareBranch()
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self.DeleteBranch(self.Config("TRUNKBRANCH"))
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class FreshBranch(Step):
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MESSAGE = "Create a fresh branch."
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def RunStep(self):
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self.GitCreateBranch(self.Config("BRANCHNAME"),
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self.vc.RemoteMasterBranch())
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class PreparePushRevision(Step):
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MESSAGE = "Check which revision to push."
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def RunStep(self):
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if self._options.revision:
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self["push_hash"] = self._options.revision
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else:
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self["push_hash"] = self.GitLog(n=1, format="%H", git_hash="HEAD")
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if not self["push_hash"]: # pragma: no cover
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self.Die("Could not determine the git hash for the push.")
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class DetectLastPush(Step):
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MESSAGE = "Detect commit ID of last push to trunk."
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def RunStep(self):
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last_push = self._options.last_push or self.FindLastTrunkPush()
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while True:
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# Print assumed commit, circumventing git's pager.
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print self.GitLog(n=1, git_hash=last_push)
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if self.Confirm("Is the commit printed above the last push to trunk?"):
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break
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last_push = self.FindLastTrunkPush(parent_hash=last_push)
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if self._options.last_bleeding_edge:
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# Read the bleeding edge revision of the last push from a command-line
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# option.
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last_push_bleeding_edge = self._options.last_bleeding_edge
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else:
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# Retrieve the bleeding edge revision of the last push from the text in
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# the push commit message.
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last_push_title = self.GitLog(n=1, format="%s", git_hash=last_push)
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last_push_bleeding_edge = PUSH_MSG_GIT_RE.match(
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last_push_title).group("git_rev")
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if not last_push_bleeding_edge: # pragma: no cover
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self.Die("Could not retrieve bleeding edge git hash for trunk push %s"
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% last_push)
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# This points to the git hash of the last push on trunk.
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self["last_push_trunk"] = last_push
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# This points to the last bleeding_edge revision that went into the last
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# push.
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# TODO(machenbach): Do we need a check to make sure we're not pushing a
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# revision older than the last push? If we do this, the output of the
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# current change log preparation won't make much sense.
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self["last_push_bleeding_edge"] = last_push_bleeding_edge
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# TODO(machenbach): Code similarities with bump_up_version.py. Merge after
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# turning this script into a pure git script.
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class GetCurrentBleedingEdgeVersion(Step):
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MESSAGE = "Get latest bleeding edge version."
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def RunStep(self):
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self.GitCheckoutFile(VERSION_FILE, self.vc.RemoteMasterBranch())
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# Store latest version.
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self.ReadAndPersistVersion("latest_")
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self["latest_version"] = self.ArrayToVersion("latest_")
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print "Bleeding edge version: %s" % self["latest_version"]
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class IncrementVersion(Step):
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MESSAGE = "Increment version number."
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def RunStep(self):
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# Retrieve current version from last trunk push.
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self.GitCheckoutFile(VERSION_FILE, self["last_push_trunk"])
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self.ReadAndPersistVersion()
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self["trunk_version"] = self.ArrayToVersion("")
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if self["latest_build"] == "9999": # pragma: no cover
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# If version control on bleeding edge was switched off, just use the last
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# trunk version.
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self["latest_version"] = self["trunk_version"]
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if SortingKey(self["trunk_version"]) < SortingKey(self["latest_version"]):
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# If the version on bleeding_edge is newer than on trunk, use it.
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self.GitCheckoutFile(VERSION_FILE, self.vc.RemoteMasterBranch())
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self.ReadAndPersistVersion()
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if self.Confirm(("Automatically increment BUILD_NUMBER? (Saying 'n' will "
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"fire up your EDITOR on %s so you can make arbitrary "
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"changes. When you're done, save the file and exit your "
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"EDITOR.)" % VERSION_FILE)):
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text = FileToText(os.path.join(self.default_cwd, VERSION_FILE))
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text = MSub(r"(?<=#define BUILD_NUMBER)(?P<space>\s+)\d*$",
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r"\g<space>%s" % str(int(self["build"]) + 1),
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text)
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TextToFile(text, os.path.join(self.default_cwd, VERSION_FILE))
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else:
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self.Editor(os.path.join(self.default_cwd, VERSION_FILE))
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# Variables prefixed with 'new_' contain the new version numbers for the
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# ongoing trunk push.
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self.ReadAndPersistVersion("new_")
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# Make sure patch level is 0 in a new push.
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self["new_patch"] = "0"
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self["version"] = "%s.%s.%s" % (self["new_major"],
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self["new_minor"],
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self["new_build"])
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class PrepareChangeLog(Step):
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MESSAGE = "Prepare raw ChangeLog entry."
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def Reload(self, body):
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"""Attempts to reload the commit message from rietveld in order to allow
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late changes to the LOG flag. Note: This is brittle to future changes of
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the web page name or structure.
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"""
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match = re.search(r"^Review URL: https://codereview\.chromium\.org/(\d+)$",
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body, flags=re.M)
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if match:
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cl_url = ("https://codereview.chromium.org/%s/description"
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% match.group(1))
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try:
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# Fetch from Rietveld but only retry once with one second delay since
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# there might be many revisions.
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body = self.ReadURL(cl_url, wait_plan=[1])
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except urllib2.URLError: # pragma: no cover
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pass
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return body
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def RunStep(self):
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self["date"] = self.GetDate()
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output = "%s: Version %s\n\n" % (self["date"], self["version"])
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TextToFile(output, self.Config("CHANGELOG_ENTRY_FILE"))
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commits = self.GitLog(format="%H",
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git_hash="%s..%s" % (self["last_push_bleeding_edge"],
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self["push_hash"]))
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# Cache raw commit messages.
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commit_messages = [
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[
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self.GitLog(n=1, format="%s", git_hash=commit),
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self.Reload(self.GitLog(n=1, format="%B", git_hash=commit)),
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self.GitLog(n=1, format="%an", git_hash=commit),
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] for commit in commits.splitlines()
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]
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# Auto-format commit messages.
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body = MakeChangeLogBody(commit_messages, auto_format=True)
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AppendToFile(body, self.Config("CHANGELOG_ENTRY_FILE"))
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msg = (" Performance and stability improvements on all platforms."
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"\n#\n# The change log above is auto-generated. Please review if "
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"all relevant\n# commit messages from the list below are included."
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"\n# All lines starting with # will be stripped.\n#\n")
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AppendToFile(msg, self.Config("CHANGELOG_ENTRY_FILE"))
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# Include unformatted commit messages as a reference in a comment.
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comment_body = MakeComment(MakeChangeLogBody(commit_messages))
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AppendToFile(comment_body, self.Config("CHANGELOG_ENTRY_FILE"))
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class EditChangeLog(Step):
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MESSAGE = "Edit ChangeLog entry."
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def RunStep(self):
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print ("Please press <Return> to have your EDITOR open the ChangeLog "
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"entry, then edit its contents to your liking. When you're done, "
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"save the file and exit your EDITOR. ")
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self.ReadLine(default="")
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self.Editor(self.Config("CHANGELOG_ENTRY_FILE"))
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# Strip comments and reformat with correct indentation.
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changelog_entry = FileToText(self.Config("CHANGELOG_ENTRY_FILE")).rstrip()
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changelog_entry = StripComments(changelog_entry)
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changelog_entry = "\n".join(map(Fill80, changelog_entry.splitlines()))
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changelog_entry = changelog_entry.lstrip()
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if changelog_entry == "": # pragma: no cover
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self.Die("Empty ChangeLog entry.")
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# Safe new change log for adding it later to the trunk patch.
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TextToFile(changelog_entry, self.Config("CHANGELOG_ENTRY_FILE"))
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class StragglerCommits(Step):
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MESSAGE = ("Fetch straggler commits that sneaked in since this script was "
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"started.")
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def RunStep(self):
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self.vc.Fetch()
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self.GitCheckout(self.vc.RemoteMasterBranch())
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class SquashCommits(Step):
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MESSAGE = "Squash commits into one."
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def RunStep(self):
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# Instead of relying on "git rebase -i", we'll just create a diff, because
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# that's easier to automate.
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TextToFile(self.GitDiff(self.vc.RemoteCandidateBranch(),
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self["push_hash"]),
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self.Config("PATCH_FILE"))
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# Convert the ChangeLog entry to commit message format.
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text = FileToText(self.Config("CHANGELOG_ENTRY_FILE"))
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# Remove date and trailing white space.
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text = re.sub(r"^%s: " % self["date"], "", text.rstrip())
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# Show the used master hash in the commit message.
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suffix = PUSH_MSG_GIT_SUFFIX % self["push_hash"]
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text = MSub(r"^(Version \d+\.\d+\.\d+)$", "\\1%s" % suffix, text)
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# Remove indentation and merge paragraphs into single long lines, keeping
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# empty lines between them.
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def SplitMapJoin(split_text, fun, join_text):
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return lambda text: join_text.join(map(fun, text.split(split_text)))
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strip = lambda line: line.strip()
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text = SplitMapJoin("\n\n", SplitMapJoin("\n", strip, " "), "\n\n")(text)
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if not text: # pragma: no cover
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self.Die("Commit message editing failed.")
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self["commit_title"] = text.splitlines()[0]
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TextToFile(text, self.Config("COMMITMSG_FILE"))
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class NewBranch(Step):
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MESSAGE = "Create a new branch from trunk."
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def RunStep(self):
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self.GitCreateBranch(self.Config("TRUNKBRANCH"),
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self.vc.RemoteCandidateBranch())
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class ApplyChanges(Step):
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MESSAGE = "Apply squashed changes."
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def RunStep(self):
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self.ApplyPatch(self.Config("PATCH_FILE"))
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os.remove(self.Config("PATCH_FILE"))
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class AddChangeLog(Step):
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MESSAGE = "Add ChangeLog changes to trunk branch."
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def RunStep(self):
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# The change log has been modified by the patch. Reset it to the version
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# on trunk and apply the exact changes determined by this PrepareChangeLog
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# step above.
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self.GitCheckoutFile(CHANGELOG_FILE, self.vc.RemoteCandidateBranch())
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changelog_entry = FileToText(self.Config("CHANGELOG_ENTRY_FILE"))
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old_change_log = FileToText(os.path.join(self.default_cwd, CHANGELOG_FILE))
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new_change_log = "%s\n\n\n%s" % (changelog_entry, old_change_log)
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TextToFile(new_change_log, os.path.join(self.default_cwd, CHANGELOG_FILE))
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os.remove(self.Config("CHANGELOG_ENTRY_FILE"))
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class SetVersion(Step):
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MESSAGE = "Set correct version for trunk."
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def RunStep(self):
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# The version file has been modified by the patch. Reset it to the version
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# on trunk and apply the correct version.
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self.GitCheckoutFile(VERSION_FILE, self.vc.RemoteCandidateBranch())
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self.SetVersion(os.path.join(self.default_cwd, VERSION_FILE), "new_")
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class CommitTrunk(Step):
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MESSAGE = "Commit to local trunk branch."
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def RunStep(self):
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self.GitCommit(file_name = self.Config("COMMITMSG_FILE"))
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os.remove(self.Config("COMMITMSG_FILE"))
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class SanityCheck(Step):
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MESSAGE = "Sanity check."
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def RunStep(self):
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# TODO(machenbach): Run presubmit script here as it is now missing in the
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# prepare push process.
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if not self.Confirm("Please check if your local checkout is sane: Inspect "
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"%s, compile, run tests. Do you want to commit this new trunk "
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"revision to the repository?" % VERSION_FILE):
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self.Die("Execution canceled.") # pragma: no cover
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class Land(Step):
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MESSAGE = "Land the patch."
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def RunStep(self):
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self.vc.CLLand()
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class TagRevision(Step):
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MESSAGE = "Tag the new revision."
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def RunStep(self):
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self.vc.Tag(
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self["version"], self.vc.RemoteCandidateBranch(), self["commit_title"])
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class CleanUp(Step):
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MESSAGE = "Done!"
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def RunStep(self):
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print("Congratulations, you have successfully created the trunk "
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"revision %s."
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% self["version"])
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self.CommonCleanup()
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if self.Config("TRUNKBRANCH") != self["current_branch"]:
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self.GitDeleteBranch(self.Config("TRUNKBRANCH"))
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class PushToTrunk(ScriptsBase):
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def _PrepareOptions(self, parser):
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group = parser.add_mutually_exclusive_group()
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group.add_argument("-f", "--force",
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help="Don't prompt the user.",
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default=False, action="store_true")
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group.add_argument("-m", "--manual",
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help="Prompt the user at every important step.",
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default=False, action="store_true")
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parser.add_argument("-b", "--last-bleeding-edge",
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help=("The git commit ID of the last bleeding edge "
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"revision that was pushed to trunk. This is "
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"used for the auto-generated ChangeLog entry."))
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parser.add_argument("-l", "--last-push",
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help="The git commit ID of the last push to trunk.")
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parser.add_argument("-R", "--revision",
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help="The git commit ID to push (defaults to HEAD).")
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def _ProcessOptions(self, options): # pragma: no cover
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if not options.manual and not options.reviewer:
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print "A reviewer (-r) is required in (semi-)automatic mode."
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return False
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if not options.manual and not options.author:
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print "Specify your chromium.org email with -a in (semi-)automatic mode."
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return False
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options.tbr_commit = not options.manual
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return True
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def _Config(self):
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return {
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"BRANCHNAME": "prepare-push",
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"TRUNKBRANCH": "trunk-push",
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"PERSISTFILE_BASENAME": "/tmp/v8-push-to-trunk-tempfile",
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"CHANGELOG_ENTRY_FILE": "/tmp/v8-push-to-trunk-tempfile-changelog-entry",
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"PATCH_FILE": "/tmp/v8-push-to-trunk-tempfile-patch-file",
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"COMMITMSG_FILE": "/tmp/v8-push-to-trunk-tempfile-commitmsg",
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}
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def _Steps(self):
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return [
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Preparation,
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FreshBranch,
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PreparePushRevision,
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DetectLastPush,
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GetCurrentBleedingEdgeVersion,
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IncrementVersion,
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PrepareChangeLog,
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EditChangeLog,
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StragglerCommits,
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SquashCommits,
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NewBranch,
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ApplyChanges,
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AddChangeLog,
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SetVersion,
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CommitTrunk,
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SanityCheck,
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Land,
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TagRevision,
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CleanUp,
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]
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if __name__ == "__main__": # pragma: no cover
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sys.exit(PushToTrunk().Run())
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