runcc 2.0.3

run commands concurrently with rust and cargo
Documentation 
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use serde::{Deserialize, Serialize};
use std::fmt::Display;

use super::input::KillBehaviorInput;

#[derive(Deserialize, Serialize, Debug, PartialEq, Eq)]
pub enum ExitStatusPattern {
    Success,
    Failed,
    StatusCode(i32),
}

#[derive(Deserialize, Serialize, Debug, PartialEq, Eq)]
#[serde(from = "KillBehaviorInput")]
pub enum KillBehavior {
    None,
    WhenAnyExited,
    WhenAnyExitedWithStatus(ExitStatusPattern),
    // WhenLabeledExited,
}

impl Default for KillBehavior {
    fn default() -> Self {
        Self::None
    }
}

impl Display for KillBehavior {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        match self {
            KillBehavior::None => write!(f, "none"),
            KillBehavior::WhenAnyExited => write!(f, "kill other commands when any exited"),
            KillBehavior::WhenAnyExitedWithStatus(s) => {
                let s: std::borrow::Cow<str> = match s {
                    ExitStatusPattern::Success => "successfully".into(),
                    ExitStatusPattern::Failed => "with failure".into(),
                    ExitStatusPattern::StatusCode(code) => {
                        format!("with status code {}", code).into()
                    }
                };
                write!(f, "kill other commands when any exited {}", s)
            }
        }
    }
}

impl std::str::FromStr for KillBehavior {
    type Err = serde_yaml::Error;

    fn from_str(s: &str) -> Result<Self, Self::Err> {
        let kill: KillBehaviorInput = serde_yaml::from_str(s)?;

        Ok(kill.into())
    }
}

#[cfg(test)]
mod tests {
    use crate::{ExitStatusPattern, KillBehavior};

    #[test]
    fn deserialize_kill_behavior() {
        for (input, val) in [
            ("\"None\"", KillBehavior::None),
            ("\"WhenAnyExited\"", KillBehavior::WhenAnyExited),
            (
                "\"WhenAnySucceeded\"",
                KillBehavior::WhenAnyExitedWithStatus(ExitStatusPattern::Success),
            ),
            (
                "\"WhenAnyFailed\"",
                KillBehavior::WhenAnyExitedWithStatus(ExitStatusPattern::Failed),
            ),
            (
                "123",
                KillBehavior::WhenAnyExitedWithStatus(ExitStatusPattern::StatusCode(123)),
            ),
        ] {
            let res: KillBehavior = serde_json::from_str(input).unwrap();
            assert_eq!(res, val);
        }
    }
}