Trailing whitespaces
This linter verifies if a file has:
unnecessary trailing whitespaces,
Windows carriage return,
empty lines at the end of file,
if file ends with a newline or not
Run Locally
This mozlint linter can be run using mach:
$ mach lint --linter file-whitespace <file paths>
Configuration
This linter is enabled on most of the code base.
This job is configured as tier 2.
Autofix
This linter provides a --fix option. The python script is doing the change itself.