@typed/content-hash/src/content-hashes/infrastructure/applyOrigin.ts

Content hash a directory of HTML/JS/CSS files and other static assets

import { posix } from 'path'

/**
 * Generates an absolute URL given the build directory you're working from,
 * the file you're trying to make a change within, the origin you'd like to use,
 * and the relative URL you have.
 */
export function applyOrigin(buildDirectory: string, file: string, origin: string): string {
  return new URL(posix.relative(buildDirectory, file), origin).pathname
}