sds/scss-lint

scss-lint is a command-line tool that checks SCSS files for style and consistency issues. SCSS is a stylesheet language that extends CSS with features like variables and nesting, scss-lint reads your SCSS files and reports problems such as inconsistent indentation, unnecessary units, or style choices that deviate from a configured set of rules. The goal is to keep stylesheets clean and consistent across a project, especially when multiple people are writing them. The tool is installed as a Ruby gem and run from the terminal against a folder or a set of files. When it finds something it objects to, it prints the filename and line number. You can configure which rules are active by creating a YAML config file in your project. Each rule, called a linter, can be turned on or off individually, and you can set its severity to either a warning or an error. Rules can also be disabled for specific files or even for specific lines within a file using inline comments. The README includes a prominent notice that should be read before adopting this tool. The underlying Ruby Sass library, which scss-lint depends on, is no longer actively maintained because the Sass team moved to a different implementation. This means scss-lint will eventually fall behind new Sass features. The README recommends considering stylelint as an alternative that is actively maintained and supports SCSS natively. Despite this notice, the project continues to accept pull requests and provide basic support. It integrates with several workflows: code review services, editor plugins, Git hooks, Rake build tasks, and a Maven plugin. The output format can be changed to suit different tools, and there is an option to generate a starting configuration file that disables all currently failing rules, so you can enable them one by one as you fix them. Requirements are Ruby 2.4 or higher and Sass 3.5.5 or higher. Files must be written in SCSS syntax, not the older indented Sass syntax.