1
/*
2
 *  This file is part of CoCalc: Copyright © 2020 Sagemath, Inc.
3
 *  License: MS-RSL – see LICENSE.md for details
4
 */
5

6
import { basename } from "path";
7
export { getExtension, containingPath } from "@cocalc/util/misc";
8

9
export function isUUID(s: string): boolean {
10
  // todo: add full check.
11
  return typeof s == "string" && s.length == 36;
12
}
13

14
export function isSha1Hash(s: string): boolean {
15
  return typeof s == "string" && s.length == 40;
16
  // todo: could add full check (i.e., each character is in 0-e)
17
}
18

19
export function trunc(s: string, n: number): string {
20
  return s.length > n ? s.slice(0, n - 1) + "…" : s;
21
}
22

23
export function getTitle({
24
  path,
25
  relativePath,
26
}: {
27
  path: string;
28
  relativePath: string;
29
}): string {
30
  const b = basename(relativePath);
31
  return b ? b : basename(path);
32
}
33

34