Function isSourceFile

src/extraction/grammars.ts:184–192

(filePath: string, overrides?: Record<string, Language>)

 * to the built-ins. Omitting it is byte-identical to the zero-config behavior.
 */
export function isSourceFile(filePath: string, overrides?: Record<string, Language>): boolean {
  if (isPlayRoutesFile(filePath)) return true; // Play `conf/routes` is extensionless
  if (isShopifyLiquidJson(filePath)) return true; // Shopify OS 2.0 JSON templates / section groups
  if (isErlangAppFile(filePath)) return true; // OTP `.app`/`.app.src` resource files
  const dot = filePath.lastIndexOf('.');
  if (dot < 0) return false;
  const ext = filePath.slice(dot).toLowerCase();
  return ext in EXTENSION_MAP || (!!overrides && ext in overrides);
}

/**
 * Shopify OS 2.0 JSON template (`templates/*.json`) or section group