Mobile/Fennec/Android/Static analysis

Android Lint

Catches various errors & optimizations specifically related to Android code and resources

./mach gradle app:lint

Notes:

• example checks? `lint --show`
• in automation? TBPL tier 2 "unit" job
• config? mobile/android/app/lint.xml
• open issues? Run locally for a complete list.
• meta bug? meta bug
• If you fix all issues for a warning, modify lint.xml to change your warning into an error!

Facebook Infer

Currently detects NullPointerExceptions and resource leaks in Android applications.

It's currently unknown how to run locally.

• in automation? updated daily – planned move to Task Cluster
• config? N/A
• open issues? See the automation link
• meta bug? meta bug

checkstyle

Checks code style

./mach gradle app:checkstyle

• example checks? Google's style guide
• in automation? In progress
• config? mobile/android/app/checkstyle.xml
• open issues? Issues we care about are blocking the meta
• meta bug? meta bug

eslint

Checks for Javascript errors (e.g. syntax errors, almost like a compiled language! :D)

./mach eslint --setup  # run once, or if the command breaks for some reason
./mach eslint mobile/android

• example checks? http://eslint.org/docs/rules/
• in automation? Treeherder tier 1 "ES" job
• config? mobile/*.eslintrc & root .eslintignore
• open issues? Open a .eslintrc and enable checks.
• meta bug? meta bug
• If you fix all issues for a warning, modify the appropriate .eslintrc to change your warning into an error!