IntelliJ IDEA Setup Guide
IntelliJ IDEA Setup Guide#
Every file needs to include the Apache license as a header. This can be automated in IntelliJ by adding a Copyright profile:
Go to “Settings/Preferences” → “Editor” → “Copyright” → “Copyright Profiles”.
Add a new profile and name it “Apache”.
Add the following text as the copyright text:
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.
Go to “Editor” → “Copyright” and choose the “Apache” profile as the default profile for this project.
Go to “Settings/Preferences” → “Plugins” and select the “Marketplace” tab. Search for the following plugins, install them, and restart the IDE if prompted:
You will also need to install the google-java-format plugin. However, a specific version of this plugin is required. Download google-java-format v188.8.131.52 and install it as follows. Make sure to NEVER update this plugin.
Go to “Settings/Preferences” → “Plugins”.
Click the gear icon and select “Install Plugin from Disk”.
Navigate to the downloaded ZIP file and select it.
Formatter For Java#
It is recommended to automatically format your code by applying the following settings:
Go to “Settings/Preferences” → “Other Settings” → “google-java-format Settings”.
Tick the checkbox to enable the plugin.
Change the code style to “Default Google Java style”.
Go to “Settings/Preferences” → “Tools” → “Actions on Save”.
Select “Reformat code”.
If you use the IDEA version is 2021.1 and below, please replace the above steps 4 and 5 by using the Save Actions plugin.
Formatter For Scala#
Enable Scalafmt as follows:
Go to “Settings/Preferences” → “Editor” → “Code Style” → “Scala”
Set “Formatter” to “Scalafmt”
Enable “Reformat on file save”
Checkstyle For Scala#
Enable Scalastyle as follows:
Go to “Settings/Preferences” → “Editor” → “Inspections”.
Search for “Scala style inspection” and enable it.