EXTRA_JS_MODULES
Firefox is migrating towards using the moz-src:// protocol to address
files within the codebase, these uris are more easily understood by
tooling and editors.
This linter prevents new files from being added to EXTRA_JS_MODULES in
moz.build files. New modules should be added to MOZ_SRC_FILES instead and
loaded with a moz-src:/// URI. EXTRA_PP_JS_MODULES and
FINAL_TARGET_FILES.modules / FINAL_TARGET_PP_FILES.modules, which install
files to the same place, are checked in the same way.
Files that are already installed this way are listed in the allowlist. Any entry that is not in the allowlist is reported as an error.
When a file is moved out of these variables, its allowlist entry must be
removed. The linter reports stale entries and can remove them with --fix.
Run Locally
This mozlint linter can be run using mach:
$ mach lint --linter extra-js-modules <file paths>
Configuration
This linter is enabled by default, and will run if you make changes to
moz.build files.