app/lib/editor/duplicate.mjs

Functions

Imports

It imports no other module of this repo. Imported by app/lib/admin/posts-actions.server.ts.

Source

1/**
2 * Strips a trailing -copy or -copy-<n> so duplicating a duplicate stays flat (a-post-copy-2, not
3 * a-post-copy-copy). A slug genuinely ending in -copy collides; accepted, since the rule is textual.
4 *
5 * @param {string} slug
6 * @returns {string}
7 */
8function baseOf(slug) {
9  const stripped = slug.replace(/-copy(?:-\d+)?$/, "");
10  // A slug that is only the suffix would leave candidates starting with a hyphen.
11  return stripped === "" ? slug : stripped;
12}
13
14/**
15 * @param {string} slug
16 * @param {number} [limit]
17 * @returns {string[]}
18 */
19export function copySlugCandidates(slug, limit = 20) {
20  const base = baseOf(slug);
21  /** @type {string[]} */
22  const out = [`${base}-copy`];
23  // Starts at 2: the unnumbered candidate is the first copy.
24  for (let n = 2; out.length < limit; n += 1) out.push(`${base}-copy-${n}`);
25  return out;
26}