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#!/bin/bash
set -e # fail on errors
if [[ $(uname) == "Darwin" ]]; then
PROG_DIR=$(dirname "$0")
else
PROG_DIR=$(readlink -f $(dirname "$0"))
fi
cd "$PROG_DIR"
DRY="echo" # default to dry mode unless -f is specified
MK_MERGE_MSG="1" # 1 to update the MERGE_MSG, empty to do not generate it
MERGE_MSG="" # msg to generate
JAR_DETECT=""
NAMES_FILTER=""
while [[ -n "$1" ]]; do
if [[ "$1" == "-f" ]]; then
DRY=""
elif [[ "$1" == "-m" ]]; then
MK_MERGE_MSG=""
elif [[ "$1" == "-u" ]]; then
JAR_DETECT="auto"
elif [[ "$1" == "-o" ]]; then
JAR_DETECT="only"
elif [[ $JAR_DETECT == "only" && $1 =~ ^[a-z]+ ]]; then
NAMES_FILTER="$NAMES_FILTER $1"
else
echo "Unknown argument: $1"
echo "Usage: $0 [-f] [-m] [-u | -o name1.jar ... nameN.jar]"
echo " -f: actual do thing. Default is dry-run."
echo " -m: do NOT generate a .git/MERGE_MSG"
echo " -u: detect and git-revert unchanged JAR files"
echo " -o: only keep the given *leaf* filenames (.jar can be omitted)"
exit 1
fi
shift
done
if [[ $JAR_DETECT == "only" && -z "$NAMES_FILTER" ]]; then
echo "Error: -o must be followed by names of files to keep."
exit 1
fi
function update() {
echo
local repo=$1
echo "# Build tools/$repo"
local SHA1=$( cd ../../tools/$repo ; git show-ref --head --hash HEAD )
MERGE_MSG="$MERGE_MSG
tools/$repo: @ $SHA1"
( $DRY cd ../../tools/$repo && $DRY ./gradlew clean publishLocal pushDistribution )
}
function merge_msg() {
local dst=.git/MERGE_MSG
if [[ -n $DRY ]]; then
echo "The following would be output to $dst (use -m to prevent this):"
dst=/dev/stdout
fi
cat >> $dst <<EOMSG
Update SDK prebuilts.
Origin:
$MERGE_MSG
EOMSG
}
function preserve_jars() {
JAR_TMP_DIR=`mktemp -d -t prebuilt_update_tmp.XXXXXXXX`
N=0
for i in `find . -type f | grep -v "^\./\."` ; do
tmpf=`echo $i | tr "./" "__"`
dstf="$JAR_TMP_DIR/$tmpf"
cp "$i" "$dstf"
N=$((N+1))
done
echo "# Copied $N files to" $(basename $JAR_TMP_DIR)
}
function revert_unchanged_jars() {
local i tmpf dstf tmp_hash local_hash
for i in `find . -type f | grep -v "^\./\."` ; do
tmpf=`echo $i | tr "./" "__"`
dstf="$JAR_TMP_DIR/$tmpf"
tmp_hash=`get_hash $dstf`
local_hash=`get_hash $i`
if [[ $dst_hash == $src_hash ]]; then
echo "# Revert unchanged file $i"
$DRY cp "$dstf" "$i"
else
echo "!--> Keep changed file $i"
fi
done
if [[ -d $JAR_TMP_DIR ]]; then
echo "# Cleanup" $(basename $JAR_TMP_DIR)
rm -rf $JAR_TMP_DIR
fi
}
function revert_filter_jars() {
local i j tmpf dstf keep
for i in `find . -type f | grep -v "^\./\."` ; do
tmpf=`echo $i | tr "./" "__"`
dstf="$JAR_TMP_DIR/$tmpf"
if ! diff -q $dstf $i 1>/dev/null ; then
j=$(basename "$i")
for f in $NAMES_FILTER; do
if [[ "$j" == "$f" || "$j" == "$f.jar" ]]; then
echo "!--> Keep changed file $i"
i=""
break
fi
done
if [[ -f "$i" ]]; then
echo "# Revert file $i"
$DRY cp "$dstf" "$i"
fi
fi
done
if [[ -d $JAR_TMP_DIR ]]; then
echo "# Cleanup" $(basename $JAR_TMP_DIR)
rm -rf $JAR_TMP_DIR
fi
}
function get_hash() {
# $1: the file to hash
if [[ "${1: -3}" == "jar" ]]; then
# Explanation:
# - unzip -v prints a "verbose" list of a zip's content including each file path, size, timestamp and CRC32
# - we don't want the timestamp so we use sed to first remove the time (12:34) and the date (13-14-15).
# - finally get a md5 of the zip output.
# if the md5 changes, the zip's content has changed (new file, different content size, different CRC32)
unzip -v $1 | sed -n -e "/[0-9][0-9]:[0-9][0-9]/s/[0-9][0-9]:[0-9][0-9]// ; s/[0-9][0-9]-[0-9][0-9]-[0-9][0-9]//p" | md5sum -b | cut -d " " -f 1
else
md5sum -b "$1" | cut -d " " -f 1
fi
}
if [[ -n $JAR_DETECT ]]; then preserve_jars; fi
for r in base swt; do
update $r
done
if [[ -n $MK_MERGE_MSG ]]; then merge_msg; fi
if [[ $JAR_DETECT == "auto" ]]; then
revert_unchanged_jars
elif [[ $JAR_DETECT == "only" ]]; then
revert_filter_jars
fi
if [[ -n $DRY ]]; then
echo
echo "## WARNING: DRY MODE. Run with -f to actually copy files."
fi