file_filter.ts

Filter function to determine which files to process for CSS class extraction. The generators pass each file's absolute id and the project root (Vite's root, Gro's project_root), so a filter can judge a path by where it sits in the project rather than where the project sits on disk. A filter that ignores the root keeps working.

Default file filter for CSS class extraction. Includes .svelte, .html, .ts, .js, .tsx, .jsx files, and .css files for their variable references (see is_css_file) - except a CSS id with a query, like the Foo.svelte?svelte&type=style&lang.css id of a Svelte component's styles, which its .svelte file already covers. Excludes test files (.test.ts, .spec.ts) and generated files (.gen.ts). Excludes files in test directories (test/, tests/, __tests__/, __mocks__/), judged inside the project or the dependency's package (see to_filter_scope), so a project checked out under a test/ directory still extracts.

Whether a file is CSS, which is scanned for the var(--*) references it makes but has no classes or elements to extract.

The part of a file id the default filter's directory checks look at: the path inside its package for a dependency (after node_modules/<pkg>/ or node_modules/@scope/pkg/), the root-relative path for a project file, and the id unchanged outside both (a linked package or a sibling workspace, which a custom filter can judge on its own terms).