v8/tools/v8-rolls.sh

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#!/bin/bash
# Copyright 2013 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.
########## Global variable definitions
DEPS_STRING='"v8_revision":'
INFO=tools/v8-info.sh
V8="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
########## Function definitions
usage() {
cat << EOF
usage: $0 OPTIONS
Run in chromium/src to get information about V8 rolls.
OPTIONS:
-h Show this message.
-n Number of rolls to print information about.
-s Chromium git hash to start printing V8 information about.
EOF
}
v8_line() {
git show $1:DEPS | grep -n $DEPS_STRING | cut -d":" -f1
}
v8_info() {
git blame -L$(v8_line $1),+1 $1 DEPS | grep $DEPS_STRING
}
v8_svn() {
sed -e 's/^.*"\([0-9]\+\)",$/\1/'
}
v8_roll() {
cut -d" " -f1
}
find_rev() {
git svn find-rev $1
}
msg() {
msg=$(git log --format="%h %ci %ce" -1 $1)
h=$(echo $msg | cut -d" " -f1)
d=$(echo $msg | cut -d" " -f2)
t=$(echo $msg | cut -d" " -f3)
a=$(echo $msg | cut -d" " -f5)
a1=$(echo $a | cut -d"@" -f1)
a2=$(echo $a | cut -d"@" -f2)
echo $h $d $t $a1@$a2
}
v8_revision() {
cd $V8
$INFO -v $1
}
rolls() {
roll=$2
for i in $(seq 1 $1); do
info=$(v8_info $roll)
roll=$(echo $info | v8_roll $roll)
trunk=$(echo $info | v8_svn $roll)
echo "$(v8_revision $trunk) $trunk $(find_rev $roll) $(msg $roll)"
roll=$roll^1
done
}
########## Option parsing
REVISIONS=1
START=HEAD
while getopts ":hn:s:" OPTION ; do
case $OPTION in
h) usage
exit 0
;;
n) REVISIONS=$OPTARG
;;
s) START=$OPTARG
;;
?) echo "Illegal option: -$OPTARG"
usage
exit 1
;;
esac
done
rolls $REVISIONS $START