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src/lib/recents.ts

@@ -0,0 +1,6 @@
+export const MAX_RECENTS = 12;
+
+/** Puts `path` first, drops an older copy of it, and keeps at most MAX_RECENTS paths. */
+export function addRecent(list: string[], path: string): string[] {
+  return [path, ...list.filter((p) => p !== path)].slice(0, MAX_RECENTS);
+}