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[timweri]

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[Copilot]

Copilot review overview

🟡 Changes recommended

Diagnostics (warnings/errors) handling and JSON warning duplication need adjustment to better match the intended CI stream separation and avoid redundant report content.

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Review effort: Lite
Findings: 2

Open (2)

• Print report diagnostics to stderr instead of stdout · New
• Exclude suggestion diagnostics from JSON warnings · New

What changed in this PR

This PR modernizes cargo-oxidate’s CI-facing output by introducing structured reporting (including JSON), adding verbosity controls, and making suggestion generation/reporting more robust and machine-consumable.

Changes:

• Add --quiet / --verbose progress controls and --format text|json final-output mode.
• Introduce a structured RunReport (policy/summary/diagnostics/suggestions) and a JSON schema v1 renderer.
• Improve suggestion generation outcomes (new Unavailable variant) and convert cache failures into non-fatal warnings.

File	Description
tests/​suggest_fix_cli.rs	Updates assertions to match new suggestion/outcome messaging.
tests/​ci_output_cli.rs	Adds integration coverage for stdout vs stderr behavior across verbosity modes.
tests/​ci_json_cli.rs	Adds integration coverage for JSON schema output and error behavior.
src/​suggest/​tests/​generate_suggestions_tests.rs	Updates tests for Outcome::Unavailable and progress callback plumbing.
src/​suggest/​tests.rs	Adapts suggestion test helper to new generate_suggestions signature.
src/​suggest.rs	Adds Outcome::Unavailable and an on_progress callback for suggestion checks.
src/​report/​json.rs	Implements JSON report schema v1 + unit tests.
src/​report.rs	Refactors text reporting into RunReport-driven rendering with policy/summary sections.
src/​policy.rs	Normalizes exemptions and replaces Unknown with MissingPublishDate { reason }.
src/​main/​tests.rs	Adds unit tests for CLI parsing and report/exit-code behavior.
src/​main.rs	Wires verbosity/format flags, structured reporting, diagnostics, and suggestion progress.
src/​cache.rs	Converts cache load/save failures into structured warnings.
src/​api.rs	Plumbs cache warnings through the client lifecycle and returns non-fatal save warnings.
README.md	Documents new flags, CI stream semantics, JSON output contract, and exit codes.

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