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//! Shared hook signal classifiers.
//!
//! Keep these tiny, dependency-free helpers in core so the short-lived hook
//! shim and the full runtime make the same skip/defer decision.
pub const BASH_MIN_ERROR_OUTPUT_CHARS: usize = 50;
#[must_use]
pub fn bash_output_is_high_signal_failure(output: &str) -> bool {
output.contains("Traceback (most recent call last):")
|| output.contains("panic:")
|| output.contains("panicked at")
|| output.contains("error[E")
|| output.contains("FATAL:")
|| bash_errorish_line_count(output) >= 2
}
#[must_use]
pub fn bash_errorish_line_count(output: &str) -> usize {
output
.lines()
.filter(|line| bash_line_is_errorish(line))
.count()
}
#[must_use]
pub fn bash_line_is_meaningful_error(line: &str) -> bool {
let trimmed = line.trim();
trimmed.contains("Traceback")
|| trimmed.contains("panic:")
|| trimmed.contains("panicked at")
|| trimmed.contains("error[E")
|| trimmed.contains("FATAL:")
|| bash_line_is_errorish(trimmed)
}
fn bash_line_is_errorish(line: &str) -> bool {
let trimmed = line.trim();
trimmed.starts_with("Error:")
|| trimmed.starts_with("Exception:")
|| trimmed.contains(" Exception:")
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn high_signal_matches_known_runtime_error_shapes() {
assert!(bash_output_is_high_signal_failure(
"Traceback (most recent call last):\nValueError: bad"
));
assert!(bash_output_is_high_signal_failure(
"thread panicked at src/main.rs:1"
));
assert!(bash_output_is_high_signal_failure(
"error[E0308]: mismatched types"
));
assert!(bash_output_is_high_signal_failure(
"FATAL: database unavailable"
));
assert!(bash_output_is_high_signal_failure(
"Error: first\nError: second"
));
}
#[test]
fn high_signal_ignores_single_generic_error_line() {
assert!(!bash_output_is_high_signal_failure(
"Error: one-off tool message"
));
assert_eq!(bash_errorish_line_count("Error: one\nException: two"), 2);
}
}