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401 lines
14 KiB
401 lines
14 KiB
#!/bin/bash
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# Copyright 2012 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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########## Global variable definitions
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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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CHROME_PATH=
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########## Function definitions
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source $(dirname $BASH_SOURCE)/common-includes.sh
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usage() {
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cat << EOF
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usage: $0 OPTIONS
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Performs the necessary steps for a V8 push to trunk. Only works for \
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git checkouts.
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OPTIONS:
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-h Show this message
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-s Specify the step where to start work. Default: 0.
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-l Manually specify the git commit ID of the last push to trunk.
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-c Specify the path to your Chromium src/ directory to automate the
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V8 roll.
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EOF
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}
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########## Option parsing
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while getopts ":hs:l:c:" OPTION ; do
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case $OPTION in
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h) usage
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exit 0
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;;
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s) START_STEP=$OPTARG
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;;
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l) LASTPUSH=$OPTARG
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;;
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c) CHROME_PATH=$OPTARG
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;;
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?) echo "Illegal option: -$OPTARG"
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usage
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exit 1
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;;
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esac
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done
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########## Regular workflow
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initial_environment_checks
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if [ $START_STEP -le $CURRENT_STEP ] ; then
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echo ">>> Step $CURRENT_STEP: Preparation"
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common_prepare
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delete_branch $TRUNKBRANCH
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fi
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let CURRENT_STEP+=1
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if [ $START_STEP -le $CURRENT_STEP ] ; then
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echo ">>> Step $CURRENT_STEP: Create a fresh branch."
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git checkout -b $BRANCHNAME svn/bleeding_edge \
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|| die "Creating branch $BRANCHNAME failed."
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fi
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let CURRENT_STEP+=1
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if [ $START_STEP -le $CURRENT_STEP ] ; then
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echo ">>> Step $CURRENT_STEP: Detect commit ID of last push to trunk."
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[[ -n "$LASTPUSH" ]] || LASTPUSH=$(git log -1 --format=%H ChangeLog)
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LOOP=1
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while [ $LOOP -eq 1 ] ; do
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# Print assumed commit, circumventing git's pager.
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git log -1 $LASTPUSH | cat
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confirm "Is the commit printed above the last push to trunk?"
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if [ $? -eq 0 ] ; then
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LOOP=0
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else
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LASTPUSH=$(git log -1 --format=%H $LASTPUSH^ ChangeLog)
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fi
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done
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persist "LASTPUSH"
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fi
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let CURRENT_STEP+=1
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if [ $START_STEP -le $CURRENT_STEP ] ; then
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echo ">>> Step $CURRENT_STEP: Prepare raw ChangeLog entry."
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# These version numbers are used again later for the trunk commit.
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read_and_persist_version
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DATE=$(date +%Y-%m-%d)
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persist "DATE"
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echo "$DATE: Version $MAJOR.$MINOR.$BUILD" > "$CHANGELOG_ENTRY_FILE"
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echo "" >> "$CHANGELOG_ENTRY_FILE"
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COMMITS=$(git log $LASTPUSH..HEAD --format=%H)
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for commit in $COMMITS ; do
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# Get the commit's title line.
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git log -1 $commit --format="%w(80,8,8)%s" >> "$CHANGELOG_ENTRY_FILE"
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# Grep for "BUG=xxxx" lines in the commit message and convert them to
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# "(issue xxxx)".
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git log -1 $commit --format="%B" \
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| grep "^BUG=" | grep -v "BUG=$" | grep -v "BUG=none$" \
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| sed -e 's/^/ /' \
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| sed -e 's/BUG=v8:\(.*\)$/(issue \1)/' \
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| sed -e 's/BUG=chromium:\(.*\)$/(Chromium issue \1)/' \
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| sed -e 's/BUG=\(.*\)$/(Chromium issue \1)/' \
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>> "$CHANGELOG_ENTRY_FILE"
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# Append the commit's author for reference.
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git log -1 $commit --format="%w(80,8,8)(%an)" >> "$CHANGELOG_ENTRY_FILE"
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echo "" >> "$CHANGELOG_ENTRY_FILE"
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done
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echo " Performance and stability improvements on all platforms." \
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>> "$CHANGELOG_ENTRY_FILE"
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fi
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let CURRENT_STEP+=1
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if [ $START_STEP -le $CURRENT_STEP ] ; then
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echo ">>> Step $CURRENT_STEP: Edit ChangeLog entry."
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echo -n "Please press <Return> to have your EDITOR open the ChangeLog entry, \
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then edit its contents to your liking. When you're done, save the file and \
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exit your EDITOR. "
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read ANSWER
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$EDITOR "$CHANGELOG_ENTRY_FILE"
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NEWCHANGELOG=$(mktemp)
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# Eliminate any trailing newlines by going through a shell variable.
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# Also (1) eliminate tabs, (2) fix too little and (3) too much indentation,
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# and (4) eliminate trailing whitespace.
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CHANGELOGENTRY=$(cat "$CHANGELOG_ENTRY_FILE" \
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| sed -e 's/\t/ /g' \
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| sed -e 's/^ \{1,7\}\([^ ]\)/ \1/g' \
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| sed -e 's/^ \{9,80\}\([^ ]\)/ \1/g' \
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| sed -e 's/ \+$//')
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[[ -n "$CHANGELOGENTRY" ]] || die "Empty ChangeLog entry."
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echo "$CHANGELOGENTRY" > "$NEWCHANGELOG"
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echo "" >> "$NEWCHANGELOG" # Explicitly insert two empty lines.
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echo "" >> "$NEWCHANGELOG"
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cat ChangeLog >> "$NEWCHANGELOG"
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mv "$NEWCHANGELOG" ChangeLog
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fi
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let CURRENT_STEP+=1
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if [ $START_STEP -le $CURRENT_STEP ] ; then
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echo ">>> Step $CURRENT_STEP: Increment version number."
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restore_if_unset "BUILD"
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NEWBUILD=$(($BUILD + 1))
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confirm "Automatically increment BUILD_NUMBER? (Saying 'n' will fire up \
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your EDITOR on $VERSION_FILE so you can make arbitrary changes. When \
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you're done, save the file and exit your EDITOR.)"
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if [ $? -eq 0 ] ; then
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sed -e "/#define BUILD_NUMBER/s/[0-9]*$/$NEWBUILD/" \
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-i "$VERSION_FILE"
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else
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$EDITOR "$VERSION_FILE"
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fi
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read_and_persist_version "NEW"
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fi
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let CURRENT_STEP+=1
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if [ $START_STEP -le $CURRENT_STEP ] ; then
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echo ">>> Step $CURRENT_STEP: Commit to local branch."
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restore_version_if_unset "NEW"
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PREPARE_COMMIT_MSG="Prepare push to trunk. \
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Now working on version $NEWMAJOR.$NEWMINOR.$NEWBUILD."
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persist "PREPARE_COMMIT_MSG"
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git commit -a -m "$PREPARE_COMMIT_MSG" \
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|| die "'git commit -a' failed."
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fi
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upload_step
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let CURRENT_STEP+=1
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if [ $START_STEP -le $CURRENT_STEP ] ; then
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echo ">>> Step $CURRENT_STEP: Commit to the repository."
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wait_for_lgtm
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# Re-read the ChangeLog entry (to pick up possible changes).
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cat ChangeLog | awk --posix '{
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if ($0 ~ /^[0-9]{4}-[0-9]{2}-[0-9]{2}:/) {
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if (in_firstblock == 1) {
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exit 0;
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} else {
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in_firstblock = 1;
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}
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};
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print $0;
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}' > "$CHANGELOG_ENTRY_FILE"
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git cl dcommit || die "'git cl dcommit' failed, please try again."
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fi
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let CURRENT_STEP+=1
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if [ $START_STEP -le $CURRENT_STEP ] ; then
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echo ">>> Step $CURRENT_STEP: Fetch straggler commits that sneaked in \
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since this script was started."
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git svn fetch || die "'git svn fetch' failed."
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git checkout svn/bleeding_edge
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restore_if_unset "PREPARE_COMMIT_MSG"
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PREPARE_COMMIT_HASH=$(git log -1 --format=%H --grep="$PREPARE_COMMIT_MSG")
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persist "PREPARE_COMMIT_HASH"
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fi
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let CURRENT_STEP+=1
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if [ $START_STEP -le $CURRENT_STEP ] ; then
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echo ">>> Step $CURRENT_STEP: Squash commits into one."
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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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restore_if_unset "PREPARE_COMMIT_HASH"
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git diff svn/trunk $PREPARE_COMMIT_HASH > "$PATCH_FILE"
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# Convert the ChangeLog entry to commit message format:
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# - remove date
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# - remove indentation
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# - merge paragraphs into single long lines, keeping empty lines between them.
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restore_if_unset "DATE"
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CHANGELOGENTRY=$(cat "$CHANGELOG_ENTRY_FILE")
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echo "$CHANGELOGENTRY" \
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| sed -e "s/^$DATE: //" \
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| sed -e 's/^ *//' \
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| awk '{
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if (need_space == 1) {
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printf(" ");
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};
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printf("%s", $0);
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if ($0 ~ /^$/) {
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printf("\n\n");
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need_space = 0;
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} else {
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need_space = 1;
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}
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}' > "$COMMITMSG_FILE" || die "Commit message editing failed."
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rm -f "$CHANGELOG_ENTRY_FILE"
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fi
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let CURRENT_STEP+=1
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if [ $START_STEP -le $CURRENT_STEP ] ; then
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echo ">>> Step $CURRENT_STEP: Create a new branch from trunk."
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git checkout -b $TRUNKBRANCH svn/trunk \
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|| die "Checking out a new branch '$TRUNKBRANCH' failed."
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fi
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let CURRENT_STEP+=1
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if [ $START_STEP -le $CURRENT_STEP ] ; then
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echo ">>> Step $CURRENT_STEP: Apply squashed changes."
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rm -f "$TOUCHED_FILES_FILE"
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apply_patch "$PATCH_FILE"
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stage_files
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rm -f "$PATCH_FILE"
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fi
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let CURRENT_STEP+=1
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if [ $START_STEP -le $CURRENT_STEP ] ; then
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echo ">>> Step $CURRENT_STEP: Set correct version for trunk."
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restore_version_if_unset
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sed -e "/#define MAJOR_VERSION/s/[0-9]*$/$MAJOR/" \
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-e "/#define MINOR_VERSION/s/[0-9]*$/$MINOR/" \
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-e "/#define BUILD_NUMBER/s/[0-9]*$/$BUILD/" \
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-e "/#define PATCH_LEVEL/s/[0-9]*$/0/" \
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-e "/#define IS_CANDIDATE_VERSION/s/[0-9]*$/0/" \
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-i "$VERSION_FILE" || die "Patching $VERSION_FILE failed."
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fi
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let CURRENT_STEP+=1
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if [ $START_STEP -le $CURRENT_STEP ] ; then
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echo ">>> Step $CURRENT_STEP: Commit to local trunk branch."
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git add "$VERSION_FILE"
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git commit -F "$COMMITMSG_FILE" || die "'git commit' failed."
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rm -f "$COMMITMSG_FILE"
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fi
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let CURRENT_STEP+=1
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if [ $START_STEP -le $CURRENT_STEP ] ; then
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echo ">>> Step $CURRENT_STEP: Sanity check."
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confirm "Please check if your local checkout is sane: Inspect $VERSION_FILE, \
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compile, run tests. Do you want to commit this new trunk revision to the \
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repository?"
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[[ $? -eq 0 ]] || die "Execution canceled."
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fi
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let CURRENT_STEP+=1
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if [ $START_STEP -le $CURRENT_STEP ] ; then
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echo ">>> Step $CURRENT_STEP: Commit to SVN."
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git svn dcommit | tee >(grep -E "^Committed r[0-9]+" \
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| sed -e 's/^Committed r\([0-9]\+\)/\1/' \
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> "$TRUNK_REVISION_FILE") \
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|| die "'git svn dcommit' failed."
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TRUNK_REVISION=$(cat "$TRUNK_REVISION_FILE")
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persist "TRUNK_REVISION"
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rm -f "$TRUNK_REVISION_FILE"
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fi
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let CURRENT_STEP+=1
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if [ $START_STEP -le $CURRENT_STEP ] ; then
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echo ">>> Step $CURRENT_STEP: Tag the new revision."
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restore_version_if_unset
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git svn tag $MAJOR.$MINOR.$BUILD -m "Tagging version $MAJOR.$MINOR.$BUILD" \
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|| die "'git svn tag' failed."
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fi
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if [ -z "$CHROME_PATH" ] ; then
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echo ">>> (asking for Chromium checkout)"
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echo -n "Do you have a \"NewGit\" Chromium checkout and want this script \
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to automate creation of the roll CL? If yes, enter the path to (and including) \
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the \"src\" directory here, otherwise just press <Return>: "
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read CHROME_PATH
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fi
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if [ -n "$CHROME_PATH" ] ; then
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let CURRENT_STEP+=1
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if [ $START_STEP -le $CURRENT_STEP ] ; then
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echo ">>> Step $CURRENT_STEP: Switch to Chromium checkout."
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V8_PATH=$(pwd)
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persist "V8_PATH"
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cd "$CHROME_PATH"
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initial_environment_checks
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# Check for a clean workdir.
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[[ -z "$(git status -s -uno)" ]] \
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|| die "Workspace is not clean. Please commit or undo your changes."
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# Assert that the DEPS file is there.
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[[ -w "DEPS" ]] || die "DEPS file not present or not writable; \
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current directory is: $(pwd)."
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fi
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let CURRENT_STEP+=1
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if [ $START_STEP -le $CURRENT_STEP ] ; then
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echo ">>> Step $CURRENT_STEP: Update the checkout and create a new branch."
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git checkout master || die "'git checkout master' failed."
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git pull || die "'git pull' failed, please try again."
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restore_if_unset "TRUNK_REVISION"
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git checkout -b "v8-roll-$TRUNK_REVISION" \
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|| die "Failed to checkout a new branch."
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fi
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let CURRENT_STEP+=1
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if [ $START_STEP -le $CURRENT_STEP ] ; then
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echo ">>> Step $CURRENT_STEP: Create and upload CL."
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# Patch DEPS file.
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sed -r -e "/\"v8_revision\": /s/\"[0-9]+\"/\"$TRUNK_REVISION\"/" \
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-i DEPS
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restore_version_if_unset
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echo -n "Please enter the email address of a reviewer for the roll CL: "
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read REVIEWER
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git commit -am "Update V8 to version $MAJOR.$MINOR.$BUILD.
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TBR=$REVIEWER" || die "'git commit' failed."
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git cl upload --send-mail \
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|| die "'git cl upload' failed, please try again."
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echo "CL uploaded."
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fi
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let CURRENT_STEP+=1
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if [ $START_STEP -le $CURRENT_STEP ] ; then
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echo ">>> Step $CURRENT_STEP: Returning to V8 checkout."
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restore_if_unset "V8_PATH"
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cd "$V8_PATH"
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fi
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fi # if [ -n "$CHROME_PATH" ]
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let CURRENT_STEP+=1
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if [ $START_STEP -le $CURRENT_STEP ] ; then
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echo ">>> Step $CURRENT_STEP: Done!"
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restore_version_if_unset
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restore_if_unset "TRUNK_REVISION"
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if [ -n "$CHROME_PATH" ] ; then
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echo "Congratulations, you have successfully created the trunk revision \
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$MAJOR.$MINOR.$BUILD and rolled it into Chromium. Please don't forget to \
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update the v8rel spreadsheet:"
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else
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echo "Congratulations, you have successfully created the trunk revision \
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$MAJOR.$MINOR.$BUILD. Please don't forget to roll this new version into \
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Chromium, and to update the v8rel spreadsheet:"
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fi
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echo -e "$MAJOR.$MINOR.$BUILD\ttrunk\t$TRUNK_REVISION"
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common_cleanup
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[[ "$TRUNKBRANCH" != "$CURRENT_BRANCH" ]] && git branch -D $TRUNKBRANCH
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fi
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