head: improve error mgmt. #7408
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PR Overview
This pull request improves error management for the head utility by providing more descriptive error messages and ensuring consistent error mapping during output operations.
- Updates the error message in the test to include context about standard output errors
- Introduces a new helper function, map_stdout_error, to wrap and format errors consistently
- Applies map_stdout_error mapping to both copy and flush operations in relevant functions
Reviewed Changes
| File | Description |
|---|---|
| tests/by-util/test_head.rs | Updates expected error message for write failures |
| src/uu/head/src/head.rs | Adds map_stdout_error function and applies it to error handling calls |
Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.
Comments suppressed due to low confidence (2)
tests/by-util/test_head.rs:809
- The updated error message now includes additional context regarding standard output errors. Verify that this message is consistent with error wording elsewhere in the application.
.stderr_contains("error writing 'standard output': No space left on device");
src/uu/head/src/head.rs:246
- [nitpick] Consider inlining map_stdout_error (e.g. with #[inline]) to potentially reduce function call overhead for this trivial error mapping function.
fn map_stdout_error(err: io::Error) -> io::Error {
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GNU testsuite comparison: |
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GNU testsuite comparison: |
cakebaker
reviewed
Mar 7, 2025
And provide more details than GNU Should fix tests/head/head-write-error
RenjiSann
approved these changes
Mar 7, 2025
sylvestre
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sylvestre
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And provide more details than GNU
Should fix tests/head/head-write-error