92 lines
2.7 KiB
Bash
Executable File
92 lines
2.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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set -e
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PATCH_FILE=$1
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if [ -z "$PATCH_FILE" ]; then
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echo usage: $0 patch-file
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exit 1
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fi
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PATCH=${PATCH:-patch} # allow overriding patch binary
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# Cleanup handler for temporary files
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TOCLEAN=""
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cleanup() {
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rm $TOCLEAN
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exit $1
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}
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trap "cleanup 1" HUP INT QUIT TERM
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# Allow passing "-" for stdin patches
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if [ "$PATCH_FILE" == "-" ]; then
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PATCH_FILE=/tmp/tmp.in.$$
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cat /dev/fd/0 > $PATCH_FILE
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TOCLEAN="$TOCLEAN $PATCH_FILE"
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fi
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# Come up with a list of changed files into $TMP
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TMP=/tmp/tmp.paths.$$
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TOCLEAN="$TOCLEAN $TMP"
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if $PATCH -p0 -E --dry-run < $PATCH_FILE 2>&1 > $TMP; then
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PLEVEL=0
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#if the patch applied at P0 there is the possability that all we are doing
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# is adding new files and they would apply anywhere. So try to guess the
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# correct place to put those files.
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# NOTE 2014/07/17:
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# Temporarily disabling below check since our jenkins boxes seems to be not defaulting to bash
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# causing below checks to fail. Once it is fixed, we can revert the commit and enable this again.
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# TMP2=/tmp/tmp.paths.2.$$
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# TOCLEAN="$TOCLEAN $TMP2"
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#
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# grep '^patching file ' $TMP | awk '{print $3}' | grep -v /dev/null | sort | uniq > $TMP2
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#
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# #first off check that all of the files do not exist
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# FOUND_ANY=0
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# for CHECK_FILE in $(cat $TMP2)
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# do
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# if [[ -f $CHECK_FILE ]]; then
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# FOUND_ANY=1
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# fi
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# done
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#
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# if [[ "$FOUND_ANY" = "0" ]]; then
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# #all of the files are new files so we have to guess where the correct place to put it is.
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#
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# # if all of the lines start with a/ or b/, then this is a git patch that
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# # was generated without --no-prefix
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# if ! grep -qv '^a/\|^b/' $TMP2 ; then
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# echo Looks like this is a git patch. Stripping a/ and b/ prefixes
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# echo and incrementing PLEVEL
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# PLEVEL=$[$PLEVEL + 1]
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# sed -i -e 's,^[ab]/,,' $TMP2
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# fi
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# fi
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elif $PATCH -p1 -E --dry-run < $PATCH_FILE 2>&1 > /dev/null; then
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PLEVEL=1
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elif $PATCH -p2 -E --dry-run < $PATCH_FILE 2>&1 > /dev/null; then
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PLEVEL=2
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else
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echo "The patch does not appear to apply with p0 to p2";
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cleanup 1;
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fi
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echo Going to apply patch with: $PATCH -p$PLEVEL
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$PATCH -p$PLEVEL -E < $PATCH_FILE
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cleanup $?
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