Meaning of Versions

Versions are defined in build.gradle.kts.

intellij.version is used for -

1. Building the plugin, so the source code needs to be compatible with it.
2. Determining the maximum supported version. This means that it needs to be updated every time a new IntelliJ Branch version is released. For example, 2021.1, 2021.2, etc.

tasks.patchPluginXml.sinceBuild is used for -

1. Determinig the minimum supported version, so the code must not reference classes not introduced yet.

Testing

• Use Gradle to run the plugin.
• Don't use IntelliJ to run the plugin.

ktfmt/ktfmt_idea_plugin $ ./gradlew runIde

Point intellij.alternativeIdePath in build.gradle.kts to a local installation of IntelliJ / Android Studio to test the plugin with it. Don't forget to enable the plugin. Easiest way: Cmd-shift-A, type 'ktfmt', look for Preferences.

Another way: change intellij.version and comment out alternativeIdePath. This will run the plugin on whatever version you put - it'll be downloaded through Gradle.