Branch builds

Branch builds are a way to build and test Fenix using branches from application-services and firefox-android. iOS is not currently supported, although we may add it in the future (see #4966).

Application-services nightlies

When we make non-breaking changes, we typically merge them into main and let them sit there until the next release. In order to check that the current main really does only have non-breaking changes, we run a nightly branch build from the main branch of application-services,

• To view the latest branch builds:
  • Open the latest decision task from the task index.
  • Click the "View Task" link
  • Click "Task Group" in the top-left
  • You should now see a list of tasks from the latest nightly
    • *-build were for building the application. A failure here indicates there's probably a breaking change that needs to be resolved.
    • To get the APK, navigate to branch-build-fenix-build and download app-x86-debug.apk from the artifacts list
    • branch-build-ac-test.* are the android-components tests tasks. These are split up by gradle project, which matches how the android-components CI handles things. Running all the tests together often leads to failures.
    • branch-build-fenix-test is the Fenix tests. These are not split up per-project.
• These builds are triggered by our .cron.yml file