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uucore/error: add macros for standardized error handling

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Terts Diepraam 2021-06-28 13:39:34 +02:00
parent 66b1ac019d
commit 43bfec7170
1 changed files with 18 additions and 0 deletions
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18
src/uucore/src/lib/macros.rs
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@ -21,6 +21,24 @@ macro_rules! executable(
}) })
); );
#[macro_export]
macro_rules! show(
($err:expr) => ({
let e = $err;
uucore::error::set_exit_code(e.code());
eprintln!("{}: {}", executable!(), e);
})
);
#[macro_export]
macro_rules! show_if_err(
($res:expr) => ({
if let Err(e) = $res {
show!(e);
}
})
);
/// Show an error to stderr in a similar style to GNU coreutils. /// Show an error to stderr in a similar style to GNU coreutils.
#[macro_export] #[macro_export]
macro_rules! show_error( macro_rules! show_error(