88 lines
2.4 KiB
Bash
Executable File
88 lines
2.4 KiB
Bash
Executable File
#!/usr/bin/env bash
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
set -e
|
|
|
|
PATCH_FILE=$1
|
|
if [ -z "$PATCH_FILE" ]; then
|
|
echo usage: $0 patch-file
|
|
exit 1
|
|
fi
|
|
|
|
PATCH=${PATCH:-patch} # allow overriding patch binary
|
|
|
|
# Cleanup handler for temporary files
|
|
TOCLEAN=""
|
|
cleanup() {
|
|
rm $TOCLEAN
|
|
exit $1
|
|
}
|
|
trap "cleanup 1" HUP INT QUIT TERM
|
|
|
|
# Allow passing "-" for stdin patches
|
|
if [ "$PATCH_FILE" == "-" ]; then
|
|
PATCH_FILE=/tmp/tmp.in.$$
|
|
cat /dev/fd/0 > $PATCH_FILE
|
|
TOCLEAN="$TOCLEAN $PATCH_FILE"
|
|
fi
|
|
|
|
# Come up with a list of changed files into $TMP
|
|
TMP=/tmp/tmp.paths.$$
|
|
TOCLEAN="$TOCLEAN $TMP"
|
|
|
|
if $PATCH -p0 -E --dry-run < $PATCH_FILE 2>&1 > $TMP; then
|
|
PLEVEL=0
|
|
#if the patch applied at P0 there is the possability that all we are doing
|
|
# is adding new files and they would apply anywhere. So try to guess the
|
|
# correct place to put those files.
|
|
|
|
TMP2=/tmp/tmp.paths.2.$$
|
|
TOCLEAN="$TOCLEAN $TMP2"
|
|
|
|
grep '^patching file ' $TMP | awk '{print $3}' | grep -v /dev/null | sort | uniq > $TMP2
|
|
|
|
#first off check that all of the files do not exist
|
|
FOUND_ANY=0
|
|
for CHECK_FILE in $(cat $TMP2)
|
|
do
|
|
if [[ -f $CHECK_FILE ]]; then
|
|
FOUND_ANY=1
|
|
fi
|
|
done
|
|
|
|
if [[ "$FOUND_ANY" = "0" ]]; then
|
|
#all of the files are new files so we have to guess where the correct place to put it is.
|
|
|
|
# if all of the lines start with a/ or b/, then this is a git patch that
|
|
# was generated without --no-prefix
|
|
if ! grep -qv '^a/\|^b/' $TMP2 ; then
|
|
echo Looks like this is a git patch. Stripping a/ and b/ prefixes
|
|
echo and incrementing PLEVEL
|
|
PLEVEL=$[$PLEVEL + 1]
|
|
sed -i -e 's,^[ab]/,,' $TMP2
|
|
fi
|
|
fi
|
|
elif $PATCH -p1 -E --dry-run < $PATCH_FILE 2>&1 > /dev/null; then
|
|
PLEVEL=1
|
|
elif $PATCH -p2 -E --dry-run < $PATCH_FILE 2>&1 > /dev/null; then
|
|
PLEVEL=2
|
|
else
|
|
echo "The patch does not appear to apply with p0 to p2";
|
|
cleanup 1;
|
|
fi
|
|
|
|
echo Going to apply patch with: $PATCH -p$PLEVEL
|
|
$PATCH -p$PLEVEL -E < $PATCH_FILE
|
|
|
|
cleanup $?
|