Github user uce commented on a diff in the pull request:
https://github.com/apache/flink/pull/366#discussion_r24179312
--- Diff: tools/qa-check.sh ---
@@ -0,0 +1,175 @@
+#!/usr/bin/env bash
+
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You 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.
+#
+
+
+#
+# QA check your changes.
+# Possible options:
+# BRANCH set a another branch as the "check" reference
+#
+#
+# Use the tool like this "BRANCH=release-0.8 ./tools/qa-check.sh"
+#
+
+
+BRANCH=${BRANCH:-origin/master}
+
+
+
+here="`dirname \"$0\"`" # relative
+here="`( cd \"$here\" && pwd )`" # absolutized and normalized
+if [ -z "$here" ] ; then
+ # error; for some reason, the path is not accessible
+ # to the script (e.g. permissions re-evaled after suid)
+ exit 1 # fail
+fi
+flink_home="`dirname \"$here\"`"
+
+echo "flink_home=$flink_home here=$here"
+cd $here
+
+if [ ! -d "_qa_workdir" ] ; then
+ echo "_qa_workdir doesnt exist. Creating it"
+ mkdir _qa_workdir
+fi
+# attention, it overwrites
+echo "_qa_workdir" > .gitignore
+
+cd _qa_workdir
+
+if [ ! -d "flink" ] ; then
+ echo "There is no flink copy in the workdir. Cloning flink"
+ git clone https://github.com/apache/flink.git flink
+ cd flink
+
+fi
+cd flink
+git fetch origin
+git checkout $BRANCH
+cd $here
+# go to refrence flink directory
+
+cd _qa_workdir
+VAR_DIR=`pwd`
+cd flink
+
+# Initialize variables
+export TESTS_PASSED=true
+export MESSAGES="Flink QA-Check results:"$'\n'
+
+goToTestDirectory() {
+ cd $flink_home
+}
+
+############################ Methods ############################
+
+############ Javadocs ############
+JAVADOC_MVN_COMMAND="mvn javadoc:aggregate -Pdocs-and-source
-Dmaven.javadoc.failOnError=false -Dquiet=false | grep
\"WARNING\|warning\|error\" | wc -l"
+
+referenceJavadocsErrors() {
+ eval $JAVADOC_MVN_COMMAND > "$VAR_DIR/_JAVADOCS_NUM_WARNINGS"
+}
+
+
+checkJavadocsErrors() {
+ OLD_JAVADOC_ERR_CNT=`cat $VAR_DIR/_JAVADOCS_NUM_WARNINGS`
+ NEW_JAVADOC_ERR_CNT=`eval $JAVADOC_MVN_COMMAND`
+ if [ "$NEW_JAVADOC_ERR_CNT" -gt "$OLD_JAVADOC_ERR_CNT" ]; then
+ MESSAGES+=":-1: The change increases the number of javadoc
errors from $OLD_JAVADOC_ERR_CNT to $NEW_JAVADOC_ERR_CNT"$'\n'
+ TESTS_PASSED=false
+ else
+ MESSAGES+=":+1: The number of javadoc errors was
$OLD_JAVADOC_ERR_CNT and is now $NEW_JAVADOC_ERR_CNT"$'\n'
+ fi
+}
+
+
+############ Compiler warnings ############
+COMPILER_WARN_MVN_COMMAND="mvn clean compile
-Dmaven.compiler.showWarning=true -Dmaven.compiler.showDeprecation=true | grep
\"WARNING\" | wc -l"
+referenceCompilerWarnings() {
+ eval $COMPILER_WARN_MVN_COMMAND > "$VAR_DIR/_COMPILER_NUM_WARNINGS"
+}
+
+checkCompilerWarnings() {
+ OLD_COMPILER_ERR_CNT=`cat $VAR_DIR/_COMPILER_NUM_WARNINGS`
+ NEW_COMPILER_ERR_CNT=`eval $COMPILER_WARN_MVN_COMMAND`
+ if [ "$NEW_COMPILER_ERR_CNT" -gt "$OLD_COMPILER_ERR_CNT" ]; then
+ MESSAGES+=":-1: The change increases the number of compiler
warnings from $OLD_COMPILER_ERR_CNT to $NEW_COMPILER_ERR_CNT"$'\n'
+ TESTS_PASSED=false
+ else
+ MESSAGES+=":+1: The number of compiler warnings was
$OLD_COMPILER_ERR_CNT and is now $NEW_COMPILER_ERR_CNT"$'\n'
+ fi
+}
+
+############ Files in lib ############
+BUILD_MVN_COMMAND="mvn clean package -DskipTests"
--- End diff --
we could also skip Javadocs here with `-Dmaven.javadoc.skip=true`
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