2020-04-03 10:48:27 +02:00
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#[derive(Debug, Clone, Copy, PartialEq)]
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2018-10-03 11:25:16 +02:00
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pub enum ExitCode {
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2019-09-13 22:26:27 +02:00
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Success,
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2018-10-03 15:27:53 +02:00
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GeneralError,
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KilledBySigint,
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2018-10-03 11:25:16 +02:00
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}
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2021-07-27 08:38:09 +02:00
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impl From<ExitCode> for i32 {
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fn from(code: ExitCode) -> Self {
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match code {
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2020-02-22 08:55:32 +01:00
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ExitCode::Success => 0,
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ExitCode::GeneralError => 1,
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ExitCode::KilledBySigint => 130,
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2018-10-03 11:25:16 +02:00
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}
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}
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}
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2020-01-25 17:13:47 +01:00
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impl ExitCode {
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2021-07-27 08:38:09 +02:00
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fn is_error(self) -> bool {
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self != ExitCode::Success
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2020-02-22 09:01:52 +01:00
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}
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2020-01-25 17:13:47 +01:00
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}
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2020-02-22 09:08:07 +01:00
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2020-04-03 10:48:27 +02:00
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pub fn merge_exitcodes(results: &[ExitCode]) -> ExitCode {
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2021-07-27 08:38:09 +02:00
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if results.iter().any(|&c| ExitCode::is_error(c)) {
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2020-02-22 09:08:07 +01:00
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return ExitCode::GeneralError;
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}
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ExitCode::Success
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}
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2020-02-22 10:39:03 +01:00
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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2020-04-03 10:48:27 +02:00
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fn success_when_no_results() {
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assert_eq!(merge_exitcodes(&[]), ExitCode::Success);
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2020-02-22 10:39:03 +01:00
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}
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#[test]
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2020-04-03 10:48:27 +02:00
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fn general_error_if_at_least_one_error() {
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2020-02-22 10:39:03 +01:00
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assert_eq!(
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2020-04-03 10:48:27 +02:00
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merge_exitcodes(&[ExitCode::GeneralError]),
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2020-02-22 10:39:03 +01:00
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ExitCode::GeneralError
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);
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assert_eq!(
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2020-04-03 10:48:27 +02:00
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merge_exitcodes(&[ExitCode::KilledBySigint]),
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ExitCode::GeneralError
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);
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assert_eq!(
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merge_exitcodes(&[ExitCode::KilledBySigint, ExitCode::Success]),
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ExitCode::GeneralError
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);
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assert_eq!(
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merge_exitcodes(&[ExitCode::Success, ExitCode::GeneralError]),
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ExitCode::GeneralError
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);
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assert_eq!(
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merge_exitcodes(&[ExitCode::GeneralError, ExitCode::KilledBySigint]),
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2020-02-22 10:39:03 +01:00
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ExitCode::GeneralError
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);
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}
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#[test]
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2020-04-03 10:48:27 +02:00
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fn success_if_no_error() {
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assert_eq!(merge_exitcodes(&[ExitCode::Success]), ExitCode::Success);
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assert_eq!(
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merge_exitcodes(&[ExitCode::Success, ExitCode::Success]),
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ExitCode::Success
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);
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2020-02-22 10:39:03 +01:00
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}
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}
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