[mstdokumaci]

Summary by CodeRabbit

• Bug Fixes
  • Fixed corrupted redirected check/fix output by ensuring streaming writes append at the current output position instead of overwriting.
  • Kept output formatting consistent, including colored status/help, summaries, and error messages.
• Tests
  • Added a compatibility test to confirm independently created streaming writers produce "aaabbb" in order.
  • Enabled the compatibility test in both standard test runs and compile-check workflows.
• Documentation
  • Updated the [Unreleased] changelog entry with the redirected output fix.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 468208a8-1783-4f60-98c3-b580dfc0b2b1

📥 Commits

Reviewing files that changed from the base of the PR and between 8fb1e16 and 7f7e09a.

📒 Files selected for processing (1)

• CHANGELOG.md

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📝 Walkthrough

Walkthrough

This PR replaces compatibility output helpers with streaming writers, adds append-behavior coverage, wires the test into build steps, and moves zsort color and output helpers into src/zsort.zig.

Changes

Compatibility output refactor

Layer / File(s)	Summary
Compat writer API and validation src/compat.zig, src/compat_test.zig, build.zig, CHANGELOG.md	src/compat.zig adds FileWriter, stdoutWriter, and stderrWriter. The compatibility test verifies that separate writers append "aaa" and "bbb" to the same file. build.zig adds the test to test and check. The changelog records the output fix.
zsort local color and output helpers src/zsort.zig	src/zsort.zig defines local ANSI constants and stdout/stderr helpers. Diff output, help, diagnostics, version output, fix messages, and summary output use the local helpers.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Possibly related PRs

• mstdokumaci/zsort#7: Both PRs modify src/compat.zig and src/zsort.zig output helpers.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title identifies the main change: replacing output helpers with streaming writers.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch write-streaming

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