Function createToImportMetaURLBasedRelativeRuntime

packages/vite/src/node/build.ts:1667–1678

(
  format: InternalModuleFormat,
  isWorker: boolean,
)

}

export function createToImportMetaURLBasedRelativeRuntime(
  format: InternalModuleFormat,
  isWorker: boolean,
): (filename: string, importer: string) => { runtime: string } {
  const formatLong = isWorker && format === 'iife' ? 'worker-iife' : format
  const toRelativePath = customRelativeUrlMechanisms[formatLong]
  return (filename, importer) => ({
    runtime: toRelativePath(
      path.posix.relative(path.dirname(importer), filename),
    ),
  })
}

export function toOutputFilePathWithoutRuntime(
  filename: string,