git_stk/
prompt.rs

1use std::io::{self, BufRead, Write};
2
3use anyhow::{Context, Result};
4
5pub fn confirm(prompt: &str) -> Result<bool> {
6    print!("{prompt}");
7    io::stdout().flush().context("failed to flush stdout")?;
8
9    let mut answer = String::new();
10    io::stdin()
11        .lock()
12        .read_line(&mut answer)
13        .context("failed to read confirmation")?;
14
15    Ok(matches!(answer.trim(), "y" | "Y" | "yes" | "Yes" | "YES"))
16}
17
18/// Number the options and read a 1-based choice from stdin. EOF or input
19/// that is not a valid number picks nothing, so non-interactive callers
20/// fall through to their error path.
21pub fn pick(title: &str, options: &[String]) -> Result<Option<usize>> {
22    anstream::eprintln!("{title}");
23    for (index, option) in options.iter().enumerate() {
24        let number = crate::style::paint(crate::style::DIM, &format!("{}.", index + 1));
25        anstream::eprintln!("  {number} {option}");
26    }
27    eprint!("pick [1-{}]: ", options.len());
28    io::stderr().flush().context("failed to flush stderr")?;
29
30    let mut answer = String::new();
31    io::stdin()
32        .lock()
33        .read_line(&mut answer)
34        .context("failed to read choice")?;
35
36    Ok(answer
37        .trim()
38        .parse::<usize>()
39        .ok()
40        .filter(|choice| (1..=options.len()).contains(choice))
41        .map(|choice| choice - 1))
42}
git_stk/prompt.rs

git_stk/
prompt.rs
