cargo-fixit 0.1.7

Proposed fixit commands for cargo
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65

/// Common result type
pub type CargoResult<T> = anyhow::Result<T>;

/// Common error type
pub type Error = anyhow::Error;

pub use anyhow::Context;

/// CLI-specific result
pub type CliResult = Result<(), CliError>;

#[derive(Debug)]
/// The CLI error is the error type used at Cargo's CLI-layer.
///
/// All errors from the lib side of Cargo will get wrapped with this error.
/// Other errors (such as command-line argument validation) will create this
/// directly.
pub struct CliError {
    /// The error to display. This can be `None` in rare cases to exit with a
    /// code without displaying a message. For example `cargo run -q` where
    /// the resulting process exits with a nonzero code (on Windows), or an
    /// external subcommand that exits nonzero (we assume it printed its own
    /// message).
    pub error: Option<anyhow::Error>,
    /// The process exit code.
    pub exit_code: i32,
}

impl CliError {
    /// Attach an error code to an error
    pub fn new(error: anyhow::Error, code: i32) -> CliError {
        CliError {
            error: Some(error),
            exit_code: code,
        }
    }

    /// Silent error
    pub fn code(code: i32) -> CliError {
        CliError {
            error: None,
            exit_code: code,
        }
    }
}

impl From<anyhow::Error> for CliError {
    fn from(err: anyhow::Error) -> CliError {
        CliError::new(err, 101)
    }
}

impl From<clap::Error> for CliError {
    fn from(err: clap::Error) -> CliError {
        #[allow(clippy::bool_to_int_with_if)]
        let code = if err.use_stderr() { 1 } else { 0 };
        CliError::new(err.into(), code)
    }
}

impl From<std::io::Error> for CliError {
    fn from(err: std::io::Error) -> CliError {
        CliError::new(err.into(), 1)
    }
}