1#!/bin/bash 2# Copyright 2012 the V8 project authors. All rights reserved. 3# Redistribution and use in source and binary forms, with or without 4# modification, are permitted provided that the following conditions are 5# met: 6# 7# * Redistributions of source code must retain the above copyright 8# notice, this list of conditions and the following disclaimer. 9# * Redistributions in binary form must reproduce the above 10# copyright notice, this list of conditions and the following 11# disclaimer in the documentation and/or other materials provided 12# with the distribution. 13# * Neither the name of Google Inc. nor the names of its 14# contributors may be used to endorse or promote products derived 15# from this software without specific prior written permission. 16# 17# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 29 30########## Global variable definitions 31 32BRANCHNAME=prepare-push 33TRUNKBRANCH=trunk-push 34PERSISTFILE_BASENAME=/tmp/v8-push-to-trunk-tempfile 35CHROME_PATH= 36 37########## Function definitions 38 39source $(dirname $BASH_SOURCE)/common-includes.sh 40 41usage() { 42cat << EOF 43usage: $0 OPTIONS 44 45Performs the necessary steps for a V8 push to trunk. Only works for \ 46git checkouts. 47 48OPTIONS: 49 -h Show this message 50 -s Specify the step where to start work. Default: 0. 51 -l Manually specify the git commit ID of the last push to trunk. 52 -c Specify the path to your Chromium src/ directory to automate the 53 V8 roll. 54EOF 55} 56 57########## Option parsing 58 59while getopts ":hs:l:c:" OPTION ; do 60 case $OPTION in 61 h) usage 62 exit 0 63 ;; 64 s) START_STEP=$OPTARG 65 ;; 66 l) LASTPUSH=$OPTARG 67 ;; 68 c) CHROME_PATH=$OPTARG 69 ;; 70 ?) echo "Illegal option: -$OPTARG" 71 usage 72 exit 1 73 ;; 74 esac 75done 76 77 78########## Regular workflow 79 80initial_environment_checks 81 82if [ $START_STEP -le $CURRENT_STEP ] ; then 83 echo ">>> Step $CURRENT_STEP: Preparation" 84 common_prepare 85 delete_branch $TRUNKBRANCH 86fi 87 88let CURRENT_STEP+=1 89if [ $START_STEP -le $CURRENT_STEP ] ; then 90 echo ">>> Step $CURRENT_STEP: Create a fresh branch." 91 git checkout -b $BRANCHNAME svn/bleeding_edge \ 92 || die "Creating branch $BRANCHNAME failed." 93fi 94 95let CURRENT_STEP+=1 96if [ $START_STEP -le $CURRENT_STEP ] ; then 97 echo ">>> Step $CURRENT_STEP: Detect commit ID of last push to trunk." 98 [[ -n "$LASTPUSH" ]] || LASTPUSH=$(git log -1 --format=%H ChangeLog) 99 LOOP=1 100 while [ $LOOP -eq 1 ] ; do 101 # Print assumed commit, circumventing git's pager. 102 git log -1 $LASTPUSH | cat 103 confirm "Is the commit printed above the last push to trunk?" 104 if [ $? -eq 0 ] ; then 105 LOOP=0 106 else 107 LASTPUSH=$(git log -1 --format=%H $LASTPUSH^ ChangeLog) 108 fi 109 done 110 persist "LASTPUSH" 111fi 112 113let CURRENT_STEP+=1 114if [ $START_STEP -le $CURRENT_STEP ] ; then 115 echo ">>> Step $CURRENT_STEP: Prepare raw ChangeLog entry." 116 # These version numbers are used again later for the trunk commit. 117 read_and_persist_version 118 119 DATE=$(date +%Y-%m-%d) 120 persist "DATE" 121 echo "$DATE: Version $MAJOR.$MINOR.$BUILD" > "$CHANGELOG_ENTRY_FILE" 122 echo "" >> "$CHANGELOG_ENTRY_FILE" 123 COMMITS=$(git log $LASTPUSH..HEAD --format=%H) 124 for commit in $COMMITS ; do 125 # Get the commit's title line. 126 git log -1 $commit --format="%w(80,8,8)%s" >> "$CHANGELOG_ENTRY_FILE" 127 # Grep for "BUG=xxxx" lines in the commit message and convert them to 128 # "(issue xxxx)". 129 git log -1 $commit --format="%B" \ 130 | grep "^BUG=" | grep -v "BUG=$" | grep -v "BUG=none$" \ 131 | sed -e 's/^/ /' \ 132 | sed -e 's/BUG=v8:\(.*\)$/(issue \1)/' \ 133 | sed -e 's/BUG=\(.*\)$/(Chromium issue \1)/' \ 134 >> "$CHANGELOG_ENTRY_FILE" 135 # Append the commit's author for reference. 136 git log -1 $commit --format="%w(80,8,8)(%an)" >> "$CHANGELOG_ENTRY_FILE" 137 echo "" >> "$CHANGELOG_ENTRY_FILE" 138 done 139 echo " Performance and stability improvements on all platforms." \ 140 >> "$CHANGELOG_ENTRY_FILE" 141fi 142 143let CURRENT_STEP+=1 144if [ $START_STEP -le $CURRENT_STEP ] ; then 145 echo ">>> Step $CURRENT_STEP: Edit ChangeLog entry." 146 echo -n "Please press <Return> to have your EDITOR open the ChangeLog entry, \ 147then edit its contents to your liking. When you're done, save the file and \ 148exit your EDITOR. " 149 read ANSWER 150 $EDITOR "$CHANGELOG_ENTRY_FILE" 151 NEWCHANGELOG=$(mktemp) 152 # Eliminate any trailing newlines by going through a shell variable. 153 # Also (1) eliminate tabs, (2) fix too little and (3) too much indentation, 154 # and (4) eliminate trailing whitespace. 155 CHANGELOGENTRY=$(cat "$CHANGELOG_ENTRY_FILE" \ 156 | sed -e 's/\t/ /g' \ 157 | sed -e 's/^ \{1,7\}\([^ ]\)/ \1/g' \ 158 | sed -e 's/^ \{9,80\}\([^ ]\)/ \1/g' \ 159 | sed -e 's/ \+$//') 160 [[ -n "$CHANGELOGENTRY" ]] || die "Empty ChangeLog entry." 161 echo "$CHANGELOGENTRY" > "$NEWCHANGELOG" 162 echo "" >> "$NEWCHANGELOG" # Explicitly insert two empty lines. 163 echo "" >> "$NEWCHANGELOG" 164 cat ChangeLog >> "$NEWCHANGELOG" 165 mv "$NEWCHANGELOG" ChangeLog 166fi 167 168let CURRENT_STEP+=1 169if [ $START_STEP -le $CURRENT_STEP ] ; then 170 echo ">>> Step $CURRENT_STEP: Increment version number." 171 restore_if_unset "BUILD" 172 NEWBUILD=$(($BUILD + 1)) 173 confirm "Automatically increment BUILD_NUMBER? (Saying 'n' will fire up \ 174your EDITOR on $VERSION_FILE so you can make arbitrary changes. When \ 175you're done, save the file and exit your EDITOR.)" 176 if [ $? -eq 0 ] ; then 177 sed -e "/#define BUILD_NUMBER/s/[0-9]*$/$NEWBUILD/" \ 178 -i "$VERSION_FILE" 179 else 180 $EDITOR "$VERSION_FILE" 181 fi 182 read_and_persist_version "NEW" 183fi 184 185let CURRENT_STEP+=1 186if [ $START_STEP -le $CURRENT_STEP ] ; then 187 echo ">>> Step $CURRENT_STEP: Commit to local branch." 188 restore_version_if_unset "NEW" 189 PREPARE_COMMIT_MSG="Prepare push to trunk. \ 190Now working on version $NEWMAJOR.$NEWMINOR.$NEWBUILD." 191 persist "PREPARE_COMMIT_MSG" 192 git commit -a -m "$PREPARE_COMMIT_MSG" \ 193 || die "'git commit -a' failed." 194fi 195 196upload_step 197 198let CURRENT_STEP+=1 199if [ $START_STEP -le $CURRENT_STEP ] ; then 200 echo ">>> Step $CURRENT_STEP: Commit to the repository." 201 wait_for_lgtm 202 # Re-read the ChangeLog entry (to pick up possible changes). 203 cat ChangeLog | awk --posix '{ 204 if ($0 ~ /^[0-9]{4}-[0-9]{2}-[0-9]{2}:/) { 205 if (in_firstblock == 1) { 206 exit 0; 207 } else { 208 in_firstblock = 1; 209 } 210 }; 211 print $0; 212 }' > "$CHANGELOG_ENTRY_FILE" 213 git cl dcommit || die "'git cl dcommit' failed, please try again." 214fi 215 216let CURRENT_STEP+=1 217if [ $START_STEP -le $CURRENT_STEP ] ; then 218 echo ">>> Step $CURRENT_STEP: Fetch straggler commits that sneaked in \ 219since this script was started." 220 git svn fetch || die "'git svn fetch' failed." 221 git checkout svn/bleeding_edge 222 restore_if_unset "PREPARE_COMMIT_MSG" 223 PREPARE_COMMIT_HASH=$(git log -1 --format=%H --grep="$PREPARE_COMMIT_MSG") 224 persist "PREPARE_COMMIT_HASH" 225fi 226 227let CURRENT_STEP+=1 228if [ $START_STEP -le $CURRENT_STEP ] ; then 229 echo ">>> Step $CURRENT_STEP: Squash commits into one." 230 # Instead of relying on "git rebase -i", we'll just create a diff, because 231 # that's easier to automate. 232 restore_if_unset "PREPARE_COMMIT_HASH" 233 git diff svn/trunk $PREPARE_COMMIT_HASH > "$PATCH_FILE" 234 # Convert the ChangeLog entry to commit message format: 235 # - remove date 236 # - remove indentation 237 # - merge paragraphs into single long lines, keeping empty lines between them. 238 restore_if_unset "DATE" 239 CHANGELOGENTRY=$(cat "$CHANGELOG_ENTRY_FILE") 240 echo "$CHANGELOGENTRY" \ 241 | sed -e "s/^$DATE: //" \ 242 | sed -e 's/^ *//' \ 243 | awk '{ 244 if (need_space == 1) { 245 printf(" "); 246 }; 247 printf("%s", $0); 248 if ($0 ~ /^$/) { 249 printf("\n\n"); 250 need_space = 0; 251 } else { 252 need_space = 1; 253 } 254 }' > "$COMMITMSG_FILE" || die "Commit message editing failed." 255 rm -f "$CHANGELOG_ENTRY_FILE" 256fi 257 258let CURRENT_STEP+=1 259if [ $START_STEP -le $CURRENT_STEP ] ; then 260 echo ">>> Step $CURRENT_STEP: Create a new branch from trunk." 261 git checkout -b $TRUNKBRANCH svn/trunk \ 262 || die "Checking out a new branch '$TRUNKBRANCH' failed." 263fi 264 265let CURRENT_STEP+=1 266if [ $START_STEP -le $CURRENT_STEP ] ; then 267 echo ">>> Step $CURRENT_STEP: Apply squashed changes." 268 rm -f "$TOUCHED_FILES_FILE" 269 apply_patch "$PATCH_FILE" 270 stage_files 271 rm -f "$PATCH_FILE" 272fi 273 274let CURRENT_STEP+=1 275if [ $START_STEP -le $CURRENT_STEP ] ; then 276 echo ">>> Step $CURRENT_STEP: Set correct version for trunk." 277 restore_version_if_unset 278 sed -e "/#define MAJOR_VERSION/s/[0-9]*$/$MAJOR/" \ 279 -e "/#define MINOR_VERSION/s/[0-9]*$/$MINOR/" \ 280 -e "/#define BUILD_NUMBER/s/[0-9]*$/$BUILD/" \ 281 -e "/#define PATCH_LEVEL/s/[0-9]*$/0/" \ 282 -e "/#define IS_CANDIDATE_VERSION/s/[0-9]*$/0/" \ 283 -i "$VERSION_FILE" || die "Patching $VERSION_FILE failed." 284fi 285 286let CURRENT_STEP+=1 287if [ $START_STEP -le $CURRENT_STEP ] ; then 288 echo ">>> Step $CURRENT_STEP: Commit to local trunk branch." 289 git add "$VERSION_FILE" 290 git commit -F "$COMMITMSG_FILE" || die "'git commit' failed." 291 rm -f "$COMMITMSG_FILE" 292fi 293 294let CURRENT_STEP+=1 295if [ $START_STEP -le $CURRENT_STEP ] ; then 296 echo ">>> Step $CURRENT_STEP: Sanity check." 297 confirm "Please check if your local checkout is sane: Inspect $VERSION_FILE, \ 298compile, run tests. Do you want to commit this new trunk revision to the \ 299repository?" 300 [[ $? -eq 0 ]] || die "Execution canceled." 301fi 302 303let CURRENT_STEP+=1 304if [ $START_STEP -le $CURRENT_STEP ] ; then 305 echo ">>> Step $CURRENT_STEP: Commit to SVN." 306 git svn dcommit | tee >(grep -E "^Committed r[0-9]+" \ 307 | sed -e 's/^Committed r\([0-9]\+\)/\1/' \ 308 > "$TRUNK_REVISION_FILE") \ 309 || die "'git svn dcommit' failed." 310 TRUNK_REVISION=$(cat "$TRUNK_REVISION_FILE") 311 persist "TRUNK_REVISION" 312 rm -f "$TRUNK_REVISION_FILE" 313fi 314 315let CURRENT_STEP+=1 316if [ $START_STEP -le $CURRENT_STEP ] ; then 317 echo ">>> Step $CURRENT_STEP: Tag the new revision." 318 restore_version_if_unset 319 git svn tag $MAJOR.$MINOR.$BUILD -m "Tagging version $MAJOR.$MINOR.$BUILD" \ 320 || die "'git svn tag' failed." 321fi 322 323if [ -n "$CHROME_PATH" ] ; then 324 325 let CURRENT_STEP+=1 326 if [ $START_STEP -le $CURRENT_STEP ] ; then 327 echo ">>> Step $CURRENT_STEP: Switch to Chromium checkout." 328 V8_PATH=$(pwd) 329 persist "V8_PATH" 330 cd "$CHROME_PATH" 331 initial_environment_checks 332 # Check for a clean workdir. 333 [[ -z "$(git status -s -uno)" ]] \ 334 || die "Workspace is not clean. Please commit or undo your changes." 335 # Assert that the DEPS file is there. 336 [[ -w "DEPS" ]] || die "DEPS file not present or not writable; \ 337current directory is: $(pwd)." 338 fi 339 340 let CURRENT_STEP+=1 341 if [ $START_STEP -le $CURRENT_STEP ] ; then 342 echo ">>> Step $CURRENT_STEP: Update the checkout and create a new branch." 343 git checkout master || die "'git checkout master' failed." 344 git pull || die "'git pull' failed, please try again." 345 restore_if_unset "TRUNK_REVISION" 346 git checkout -b "v8-roll-$TRUNK_REVISION" \ 347 || die "Failed to checkout a new branch." 348 fi 349 350 let CURRENT_STEP+=1 351 if [ $START_STEP -le $CURRENT_STEP ] ; then 352 echo ">>> Step $CURRENT_STEP: Create and upload CL." 353 # Patch DEPS file. 354 sed -r -e "/\"v8_revision\": /s/\"[0-9]+\"/\"$TRUNK_REVISION\"/" \ 355 -i DEPS 356 restore_version_if_unset 357 echo -n "Please enter the email address of a reviewer for the roll CL: " 358 read REVIEWER 359 git commit -am "Update V8 to version $MAJOR.$MINOR.$BUILD. 360 361TBR=$REVIEWER" || die "'git commit' failed." 362 git cl upload --send-mail \ 363 || die "'git cl upload' failed, please try again." 364 echo "CL uploaded." 365 fi 366 367 let CURRENT_STEP+=1 368 if [ $START_STEP -le $CURRENT_STEP ] ; then 369 echo ">>> Step $CURRENT_STEP: Returning to V8 checkout." 370 restore_if_unset "V8_PATH" 371 cd "$V8_PATH" 372 fi 373fi # if [ -n "$CHROME_PATH" ] 374 375let CURRENT_STEP+=1 376if [ $START_STEP -le $CURRENT_STEP ] ; then 377 echo ">>> Step $CURRENT_STEP: Done!" 378 restore_version_if_unset 379 restore_if_unset "TRUNK_REVISION" 380 if [ -n "$CHROME_PATH" ] ; then 381 echo "Congratulations, you have successfully created the trunk revision \ 382$MAJOR.$MINOR.$BUILD and rolled it into Chromium. Please don't forget to \ 383update the v8rel spreadsheet:" 384 else 385 echo "Congratulations, you have successfully created the trunk revision \ 386$MAJOR.$MINOR.$BUILD. Please don't forget to roll this new version into \ 387Chromium, and to update the v8rel spreadsheet:" 388 fi 389 echo -e "$MAJOR.$MINOR.$BUILD\ttrunk\t$TRUNK_REVISION" 390 common_cleanup 391 [[ "$TRUNKBRANCH" != "$CURRENT_BRANCH" ]] && git branch -D $TRUNKBRANCH 392fi 393