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// Copyright 2021 - 2025 Martin Pool
//! Exit codes from cargo-mutants.
//!
//! These are assigned so that different cases that CI or other automation (or
//! cargo-mutants' own test suite) might want to distinguish are distinct.
//!
//! These are also described in README.md.
use std::process::{ExitCode as StdExitCode, Termination};
// TODO: Maybe merge this with outcome::Status, and maybe merge with sysexit.
/// Exit codes for cargo-mutants.
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
#[repr(i32)]
pub enum ExitCode {
/// Everything worked and all the mutants were caught.
Success = 0,
/// The wrong arguments, etc.
///
/// (1 is also the value returned by Clap.)
Usage = 1,
/// Found one or mutants that were not caught by tests.
FoundProblems = 2,
/// One or more tests timed out: probably the mutant caused an infinite loop, or the timeout is too low.
Timeout = 3,
/// The tests are already failing in an unmutated tree.
BaselineFailed = 4,
/// The filter diff new text does not match the source tree content.
FilterDiffMismatch = 5,
/// The filter diff could not be parsed.
FilterDiffInvalid = 6,
/// An internal software error, from sysexit.
Software = 70,
}
impl From<ExitCode> for StdExitCode {
fn from(code: ExitCode) -> Self {
// All exit codes are known to be valid u8 values
#[allow(clippy::cast_possible_truncation)]
StdExitCode::from(code as u8)
}
}
impl Termination for ExitCode {
fn report(self) -> std::process::ExitCode {
self.into()
}
}