feat: allow skipping generation of @font-face override declarations

Author: danielroe

README.md

@@ -54,6 +54,7 @@ const options = {
   resolvePath: (id) => 'file:///path/to/public/dir' + id,
   // overrideName: (originalName) => `${name} override`
   // sourcemap: false
+  // skipFontFaceGeneration: (fontFamily) => fontFamily === 'Roboto'
 }
 
 // Vite

src/transform.ts

@@ -17,6 +17,7 @@ interface FontaineTransformOptions {
   css?: { value?: string }
   fallbacks: string[]
   resolvePath?: (path: string) => string | URL
+  skipFontFaceGeneration?: (name: string) => boolean
   /** this should produce an unquoted font family name */
   fallbackName?: (name: string) => string
   /** @deprecated use fallbackName */
@@ -34,6 +35,9 @@ export const FontaineTransform = createUnplugin(
     const fallbackName =
       options.fallbackName || options.overrideName || generateFallbackName
 
+    const skipFontFaceGeneration =
+      options.skipFontFaceGeneration || (() => false)
+
     function readMetricsFromId(path: string, importer: string) {
       const resolvedPath =
         isAbsolute(importer) && path.startsWith('.')
@@ -62,6 +66,7 @@ export const FontaineTransform = createUnplugin(
           for (const { family, source } of parseFontFace(matchContent)) {
             if (!family) continue
             if (!supportedExtensions.some(e => source?.endsWith(e))) continue
+            if (skipFontFaceGeneration(family)) continue
 
             const metrics =
               (await getMetricsForFamily(family)) ||