1#!/usr/bin/env python3
2"""
3This is a tiny script I can use to preview secrets on the command line.
4
5It prints the beginning and end of the secret, but not the whole thing --
6this avoids printing secrets in plaintext.
7
8    $ echo "$FLICKR_API_KEY" | peek
9    ae8…f3a
10
11"""
12
13import sys
14
15
16if __name__ == '__main__':
17    secret = sys.stdin.read().strip()
18    
19    if not secret:
20        print("<empty>")
21    elif len(secret) < 4:
22        print(f"{secret[0]}…")
23    elif len(secret) < 12:
24        print(f"{secret[:3]}…")
25    else:
26        print(f"{secret[:3]}…{secret[-3:]}")