Replacing the Glean Gradle plugin in mozilla-central

Note: If you only need to replace the glean_parser Python parts used in the build see Substituting glean_parser. The approached documented in this chapter is only necessary if you changed GleanGradlePlugin.groovy.

If you need to replace the Glean Gradle Plugin used by any component in mozilla-central, follow these steps:

1. In your Glean repository increment the version number in .buildconfig.yml to something unused:

   libraryVersion: 70.0.0
   

2. Build the Glean Gradle plugin and publish the plugin locally:

   ./gradlew glean-gradle-plugin:publishToMavenLocal
   

3. In your mozilla-central checkout, add the following line in mobile/android/fenix/settings.gradle file in the pluginManagement block:

   mavenLocal()
   

4. Use the new version number where the plugin is imported in mobile/android/fenix/build.gradle:

   classpath "org.mozilla.telemetry:glean-gradle-plugin:70.0.0"
   

   This might need to be applied to the top-level build.gradle and other build.gradle files under mobile/android to apply to all components.

Building Fenix will now use your locally published Glean Gradle Plugin.