Function relativePath

src/path.ts:10–21

(source: string, target: string)

 * from the root.
 */
export function relativePath(source: string, target: string): string {
  if (/^\w+:/.test(target)) return target;
  const from = join("/", source).split(/[/]+/g).slice(0, -1);
  const to = join("/", target).split(/[/]+/g);
  const f = to.pop()!;
  const m = from.length;
  const n = Math.min(m, to.length);
  let i = 0;
  while (i < n && from[i] === to[i]) ++i;
  const k = m - i;
  return (k ? "../".repeat(k) : "./") + to.slice(i).concat(f).join("/");
}

/**
 * Returns the path to the specified target within the given source root, which