arcature-cli 2026.1.1

Developer lifecycle CLI for Arcature applications.
Documentation 
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use std::fmt;

#[derive(Debug)]
pub(crate) enum ToolError {
    Missing {
        program: &'static str,
        source: std::io::Error,
    },
    ProbeFailed {
        program: &'static str,
        status: std::process::ExitStatus,
    },
    InvalidOutput {
        program: &'static str,
    },
}

impl fmt::Display for ToolError {
    fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
        match self {
            Self::Missing { program, source } => write!(
                formatter,
                "required tool `{program}` is unavailable: {source}"
            ),
            Self::ProbeFailed { program, status } => {
                write!(formatter, "tool `{program} --version` failed with {status}")
            }
            Self::InvalidOutput { program } => write!(
                formatter,
                "tool `{program}` returned an unrecognized version"
            ),
        }
    }
}

impl std::error::Error for ToolError {
    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
        match self {
            Self::Missing { source, .. } => Some(source),
            _ => None,
        }
    }
}