surma
b9e3e3677d
rg (ripgrep 15.2), grep (ours, on ripgrep's regex crates), find and xargs (ours), sed (uutils 0.3 wrapper), diff and cmp (uutils diffutils 0.6 with -r), fd 10.5, jaq 2.3, env and timeout. userland/spawn is a small Command-like client of the process interface. search-test.nu: 42 cases match native tools.
95 lines
2.4 KiB
Rust
95 lines
2.4 KiB
Rust
use std::process;
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#[cfg(unix)]
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use nix::sys::signal::{SigHandler, Signal, raise, signal};
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub enum ExitCode {
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Success,
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HasResults(bool),
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GeneralError,
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KilledBySigint,
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}
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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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ExitCode::Success => 0,
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ExitCode::HasResults(has_results) => !has_results as Self,
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ExitCode::GeneralError => 1,
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ExitCode::KilledBySigint => 130,
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}
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}
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}
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impl ExitCode {
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fn is_error(self) -> bool {
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i32::from(self) != 0
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}
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/// Exit the process with the appropriate code.
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pub fn exit(self) -> ! {
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#[cfg(unix)]
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if self == Self::KilledBySigint {
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// Get rid of the SIGINT handler, if present, and raise SIGINT
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unsafe {
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if signal(Signal::SIGINT, SigHandler::SigDfl).is_ok() {
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let _ = raise(Signal::SIGINT);
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}
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}
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}
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process::exit(self.into())
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}
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}
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pub fn merge_exitcodes(results: impl IntoIterator<Item = ExitCode>) -> ExitCode {
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if results.into_iter().any(ExitCode::is_error) {
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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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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn success_when_no_results() {
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assert_eq!(merge_exitcodes([]), ExitCode::Success);
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}
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#[test]
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fn general_error_if_at_least_one_error() {
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assert_eq!(
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merge_exitcodes([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::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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ExitCode::GeneralError
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);
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}
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#[test]
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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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}
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}
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