aur_cli 0.1.2

Prepare Rust projects to be released on the Arch Linux User Repository.
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//! Errors that can occur in this application.

use std::fmt::Display;

pub(crate) enum Error {
    IO(std::io::Error),
    Toml(toml::de::Error),
    Utf8(std::str::Utf8Error),
    Utf8OsString,
    MissingTarget,
    MissingLicense,
}

impl Display for Error {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        match self {
            Error::IO(e) => write!(f, "{}", e),
            Error::Toml(e) => write!(f, "{}", e),
            Error::Utf8(e) => write!(f, "{}", e),
            Error::Utf8OsString => write!(f, "The `OsString` was not UTF-8!"),
            Error::MissingTarget => write!(
                f,
                "Missing target! Try: rustup target add x86_64-unknown-linux-musl"
            ),
            Error::MissingLicense => {
                write!(f, "Missing LICENSE file. See https://choosealicense.com/")
            }
        }
    }
}

impl From<std::str::Utf8Error> for Error {
    fn from(v: std::str::Utf8Error) -> Self {
        Self::Utf8(v)
    }
}

impl From<toml::de::Error> for Error {
    fn from(v: toml::de::Error) -> Self {
        Self::Toml(v)
    }
}

impl From<std::io::Error> for Error {
    fn from(v: std::io::Error) -> Self {
        Self::IO(v)
    }
}