Add git pre-commit hook to source control (apache#9554)

* Add git pre-commit hook to source control

* Changed hook to pre-push and simply hook to run all checkstyle

* Clean up setup-hooks

* Add apache header

* Add apache header

* add documentation to intellij-setup.md

* retrigger tests

* update

Co-authored-by: Maytas Monsereenusorn <[email protected]>

dev/intellij-setup.md

@@ -34,6 +34,11 @@ an alias name. You can do this in Using `File` -> `Project Structure...` -> `Pla
 ## Code Style
 The Code Style is available in XML format at [druid_intellij_formatting.xml](druid_intellij_formatting.xml) and can be [imported into IntelliJ](https://www.jetbrains.com/help/idea/2017.1/copying-code-style-settings.html).
 
+## Git Checkstyle Verification Hook (Optional)
+Git Checkstyle pre-commit hook can be installed to automatically run checkstyle verification before committing, 
+saving cycle from avoiding the checkstyle failing later in Travis/CI environment.
+The hook can be setup easily by running the <DRUID_HOME>/setup-hooks.sh script.
+
 ## Metadata
 The installation of a MySQL metadata store is outside the scope of this document, but instructions on setting up MySQL can be found at [docs/development/extensions-core/mysql.md](/docs/development/extensions-core/mysql.md). This assumes you followed the example there and have a database named `druid` with proper permissions for a user named `druid` and a password of `diurd`.
 

hooks/pre-push.sh

@@ -0,0 +1,17 @@
+#!/bin/bash -eu
+# 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.
+
+mvn checkstyle:checkstyle --fail-at-end

setup-hooks.sh

@@ -0,0 +1,17 @@
+#!/bin/bash -eu
+# 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.
+
+ln -s ../../hooks/pre-push.sh .git/hooks/pre-push