71c2f73175
git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1161291 13f79535-47bb-0310-9956-ffa450edef68
79 lines
2.4 KiB
Bash
Executable File
79 lines
2.4 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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grep '^+++\|^---' $PATCH_FILE | cut -c '5-' | grep -v /dev/null | sort | uniq > $TMP
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# Assume p0 to start
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PLEVEL=0
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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/' $TMP ; then
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echo Looks like this is a git patch. Stripping a/ and b/ prefixes
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echo and incrementing PLEVEL
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PLEVEL=$[$PLEVEL + 1]
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sed -i -e 's,^[ab]/,,' $TMP
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fi
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PREFIX_DIRS=$(cut -d '/' -f 1 $TMP | sort | uniq)
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# if we are at the project root then nothing more to do
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if [[ -d hadoop-common ]]; then
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echo Looks like this is being run at project root
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# if all of the lines start with hadoop-common/, hadoop-hdfs/, or hadoop-mapreduce/, this is
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# relative to the hadoop root instead of the subproject root, so we need
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# to chop off another layer
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elif [[ "$PREFIX_DIRS" =~ ^(hadoop-alfredo|hadoop-annotations|hadoop-common|hadoop-hdfs|hadoop-mapreduce)$ ]]; then
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echo Looks like this is relative to project root. Increasing PLEVEL
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PLEVEL=$[$PLEVEL + 1]
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elif ! echo "$PREFIX_DIRS" | grep -vxq 'hadoop-alfredo\|hadoop-annotations\|hadoop-common\|hadoop-hdfs\|hadoop-mapreduce' ; then
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echo Looks like this is a cross-subproject patch. Try applying from the project root
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exit 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 0
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