cli_rs/
cli_error.rs

1use std::fmt::Display;
2
3pub type CliResult<T> = Result<T, CliError>;
4
5#[derive(Debug, PartialEq)]
6pub struct CliError {
7    pub msg: String,
8    pub status: i32,
9}
10
11impl<D: Display> From<D> for CliError {
12    fn from(value: D) -> Self {
13        let msg = value.to_string();
14        Self { msg, status: 1 }
15    }
16}
17
18pub trait Exit {
19    type O;
20
21    fn exit(self);
22    fn exit_if_err(self) -> Self::O;
23    fn exit_silently(self);
24}
25
26impl<O> Exit for CliResult<O> {
27    type O = O;
28
29    fn exit(self) {
30        match self {
31            Ok(_) => std::process::exit(0),
32            Err(err) => {
33                eprintln!("{}", err.msg);
34                std::process::exit(err.status);
35            }
36        }
37    }
38
39    fn exit_if_err(self) -> Self::O {
40        match self {
41            Ok(o) => o,
42            Err(err) => {
43                eprintln!("{}", err.msg);
44                std::process::exit(err.status);
45            }
46        }
47    }
48
49    fn exit_silently(self) {
50        let status = match self {
51            Ok(_) => 0,
52            Err(e) => e.status,
53        };
54
55        std::process::exit(status);
56    }
57}
cli_rs/cli_error.rs

cli_rs/
cli_error.rs
