Summary of Changes

Hello, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request enhances the stability of task output by migrating from standard I/O macros to the calm_io library. This change prevents application crashes that previously occurred when output streams were unexpectedly closed, ensuring a more resilient user experience, especially in environments involving shell piping or redirection.

Highlights

• Output Handling: Replaced standard println! and eprintln! macros with calm_io equivalents (stdoutln! and stderrln!) to manage output streams more robustly.
• Panic Prevention: Addressed potential 'broken pipe' panics that could occur when stdout or stderr streams are closed prematurely, such as when piping output to another command that finishes early.

Greptile Summary

This PR replaces bare println!/eprintln! calls in the task output path with calm_io::stdoutln!/calm_io::stderrln! to prevent broken pipe panics when stdout/stderr is closed early (e.g., mise run some-task | head). The let _ = ... idiom is used throughout to silently discard I/O errors, which is the correct approach for a task runner that should not crash on early pipe closure.

Key changes:

• src/output.rs: prefix_println! and prefix_eprintln! macros now use calm_io and properly discard I/O errors
• src/task/task_results_display.rs: Timing summary and failure header eprintln! calls are updated to use calm_io

The changes are minimal, focused, and correctly implement the fix for broken pipe handling in task output.

Confidence Score: 5/5

• This PR is safe to merge. It correctly implements broken pipe handling in task output paths using the established calm_io pattern.
• All changes have been verified. The core macros and task results display are correctly updated. The calm_io crate is already a declared dependency and the API usage matches existing patterns in the codebase. The let _ = ... idiom correctly handles and discards I/O errors without crashing.
• No files require special attention.

_{Last reviewed commit: b83bae0}