@serwist/build/src/lib/rebase-path.ts

A module that integrates into your build process, helping you generate a manifest of local files that should be precached.

/*
  Copyright 2019 Google LLC

  Use of this source code is governed by an MIT-style
  license that can be found in the LICENSE file or at
  https://opensource.org/licenses/MIT.
*/

import { toUnix } from "@serwist/utils";
import path from "node:path";

export function rebasePath({ baseDirectory, file }: { baseDirectory: string; file: string }): string {
  // The initial path is relative to the current directory, so make it absolute.
  const absolutePath = path.resolve(file);

  // Convert the absolute path so that it's relative to the baseDirectory.
  const relativePath = path.relative(baseDirectory, absolutePath);

  // Remove any leading ./ as it won't work in a glob pattern.
  const normalizedPath = path.normalize(relativePath);

  return toUnix(normalizedPath);
}