hellcheck 0.1.2

HTTP health checker
Documentation 
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use failure::Fail;

#[derive(Debug, Fail, PartialEq)]
pub enum ConfigError {
    #[fail(display = "Invalid YAML file: {}", err)]
    InvalidYaml { err: yaml_rust::scanner::ScanError },

    #[fail(display = "Unknown root element `{}`", name)]
    UnkownRootElement { name: String },

    #[fail(display = "{}", message)]
    GeneralError { message: String },

    #[fail(
        display = "Unknown checker attribute `{}` in checkers.{}",
        attr_name, checker_id
    )]
    UnknownCheckerAttribute {
        checker_id: String,
        attr_name: String,
    },

    #[fail(
        display = "Failed to parse interval `{}` in checkers.{}.interval",
        interval, checker_id
    )]
    InvalidCheckerInterval {
        checker_id: String,
        interval: String,
    },

    #[fail(
        display = "Failed to parse URL `{}` in checkers.{}.url",
        url, checker_id
    )]
    InvalidCheckerUrl { checker_id: String, url: String },

    #[fail(
        display = "Invalid notifier type `{}` in `notifiers.{}.type`",
        type_value, notifier_id
    )]
    InvalidNotifierType {
        notifier_id: String,
        type_value: String,
    },

    #[fail(
        display = "Unknown {} notifier attribute `{}` in checkers.{}",
        notifier_type, attr_name, notifier_id
    )]
    UnknownNotifierAttribute {
        notifier_id: String,
        notifier_type: String,
        attr_name: String,
    },

    #[fail(display = "Field `{}` is missing", path)]
    FieldMissing { path: String },
}

#[derive(Debug, Fail, PartialEq)]
pub enum ConfigValidationError {
    #[fail(
        display = "`checkers.{}.notifiers` refers to an undeclared notifier `{}`",
        checker_id, notifier_id
    )]
    UnknownNotifier {
        checker_id: String,
        notifier_id: String,
    },

    #[fail(
        display = "`notifiers.{}.command` refers to `{}`, but it is not executable",
        notifier_id, command
    )]
    CommandNotFound {
        notifier_id: String,
        command: String,
    },

    #[fail(display = "There are no checkers defined in the config file")]
    NoCheckers,
}