HADOOP-11925. backport trunk's smart-apply-patch.sh to branch-2 (aw)
This commit is contained in:
Allen Wittenauer
parent
e68e8b3b5c
commit
f95fd5b6df
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@ -11,14 +11,48 @@
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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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#
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# Determine if the patch file is a git diff file with prefixes.
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# These files are generated via "git diff" *without* the --no-prefix option.
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#
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# We can apply these patches more easily because we know that the a/ and b/
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# prefixes in the "diff" lines stands for the project root directory.
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# So we don't have to hunt for the project root.
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# And of course, we know that the patch file was generated using git, so we
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# know git apply can handle it properly.
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#
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# Arguments: file name.
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# Return: 0 if it is a git diff; 1 otherwise.
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#
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is_git_diff_with_prefix() {
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DIFF_TYPE="unknown"
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while read -r line; do
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if [[ "$line" =~ ^diff\ ]]; then
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if [[ "$line" =~ ^diff\ \-\-git ]]; then
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DIFF_TYPE="git"
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else
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return 1 # All diff lines must be diff --git lines.
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fi
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fi
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if [[ "$line" =~ ^\+\+\+\ ]] ||
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[[ "$line" =~ ^\-\-\-\ ]]; then
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if ! [[ "$line" =~ ^....[ab]/ || "$line" =~ ^..../dev/null ]]; then
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return 1 # All +++ and --- lines must start with a/ or b/ or be /dev/null.
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fi
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fi
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done < $1
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[ x$DIFF_TYPE == x"git" ] || return 1
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return 0 # return true (= 0 in bash)
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}
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PATCH_FILE=$1
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DRY_RUN=$2
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if [ -z "$PATCH_FILE" ]; then
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echo usage: $0 patch-file
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exit 1
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fi
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TMPDIR=${TMPDIR:-/tmp}
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PATCH=${PATCH:-patch} # allow overriding patch binary
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# Cleanup handler for temporary files
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@ -31,13 +65,56 @@ trap "cleanup 1" HUP INT QUIT TERM
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# Allow passing "-" for stdin patches
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if [ "$PATCH_FILE" == "-" ]; then
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PATCH_FILE=/tmp/tmp.in.$$
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PATCH_FILE="$TMPDIR/smart-apply.in.$RANDOM"
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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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ISSUE_RE='^(HADOOP|YARN|MAPREDUCE|HDFS)-[0-9]+$'
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if [[ ${PATCH_FILE} =~ ^http || ${PATCH_FILE} =~ ${ISSUE_RE} ]]; then
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# Allow downloading of patches
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PFILE="$TMPDIR/smart-apply.in.$RANDOM"
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TOCLEAN="$TOCLEAN $PFILE"
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if [[ ${PATCH_FILE} =~ ^http ]]; then
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patchURL="${PATCH_FILE}"
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else # Get URL of patch from JIRA
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wget -q -O "${PFILE}" "http://issues.apache.org/jira/browse/${PATCH_FILE}"
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if [[ $? != 0 ]]; then
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echo "Unable to determine what ${PATCH_FILE} may reference." 1>&2
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cleanup 1
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elif [[ $(grep -c 'Patch Available' "${PFILE}") == 0 ]]; then
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echo "${PATCH_FILE} is not \"Patch Available\". Exiting." 1>&2
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cleanup 1
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fi
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relativePatchURL=$(grep -o '"/jira/secure/attachment/[0-9]*/[^"]*' "${PFILE}" | grep -v -e 'htm[l]*$' | sort | tail -1 | grep -o '/jira/secure/attachment/[0-9]*/[^"]*')
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patchURL="http://issues.apache.org${relativePatchURL}"
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fi
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if [[ -n $DRY_RUN ]]; then
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echo "Downloading ${patchURL}"
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fi
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wget -q -O "${PFILE}" "${patchURL}"
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if [[ $? != 0 ]]; then
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echo "${PATCH_FILE} could not be downloaded." 1>&2
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cleanup 1
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fi
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PATCH_FILE="${PFILE}"
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fi
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# Special case for git-diff patches without --no-prefix
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if is_git_diff_with_prefix "$PATCH_FILE"; then
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GIT_FLAGS="--binary -p1 -v"
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if [[ -z $DRY_RUN ]]; then
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GIT_FLAGS="$GIT_FLAGS --stat --apply "
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echo Going to apply git patch with: git apply "${GIT_FLAGS}"
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else
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GIT_FLAGS="$GIT_FLAGS --check "
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fi
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git apply ${GIT_FLAGS} "${PATCH_FILE}"
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exit $?
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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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TMP="$TMPDIR/smart-apply.paths.$RANDOM"
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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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@ -46,10 +123,10 @@ if $PATCH -p0 -E --dry-run < $PATCH_FILE 2>&1 > $TMP; then
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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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TMP2=/tmp/tmp.paths.2.$$
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TMP2="$TMPDIR/smart-apply.paths.2.$RANDOM"
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TOCLEAN="$TOCLEAN $TMP2"
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egrep '^patching file |^checking file ' $TMP | awk '{print $3}' | grep -v /dev/null | sort | uniq > $TMP2
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egrep '^patching file |^checking file ' $TMP | awk '{print $3}' | grep -v /dev/null | sort -u > $TMP2
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if [ ! -s $TMP2 ]; then
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echo "Error: Patch dryrun couldn't detect changes the patch would make. Exiting."
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@ -77,7 +154,7 @@ if $PATCH -p0 -E --dry-run < $PATCH_FILE 2>&1 > $TMP; then
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sed -i -e 's,^[ab]/,,' $TMP2
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fi
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PREFIX_DIRS_AND_FILES=$(cut -d '/' -f 1 | sort | uniq)
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PREFIX_DIRS_AND_FILES=$(cut -d '/' -f 1 $TMP2 | sort -u)
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# if we are at the project root then nothing more to do
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if [[ -d hadoop-common-project ]]; then
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@ -105,6 +182,11 @@ else
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cleanup 1;
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fi
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# If this is a dry run then exit instead of applying the patch
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if [[ -n $DRY_RUN ]]; then
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cleanup 0;
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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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@ -78,6 +78,8 @@ Release 2.8.0 - UNRELEASED
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HADOOP-11917. test-patch.sh should work with ${BASEDIR}/patchprocess
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setups (aw)
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HADOOP-11925. backport trunk's smart-apply-patch.sh to branch-2 (aw)
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OPTIMIZATIONS
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HADOOP-11785. Reduce the number of listStatus operation in distcp
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