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Restructured workflow execution for maximum parallelization:
Job Structure:
- msrv: Detect MSRV (foundation for all jobs)
- fmt, clippy, deny, audit: Run in parallel (independent quality checks)
- test: Depends on fmt+clippy (matrix: MSRV + stable)
- package: Depends on test (MSRV only)
- coverage, benchmarks: Depend on test (run in parallel)
Dependency Chain:
msrv → [fmt, clippy, deny, audit] (parallel)
↓
[fmt, clippy] → test (matrix)
↓
[package, coverage, benchmarks] (parallel)
Benefits:
- Faster CI feedback (~2-3 min vs ~5 min)
- Quality checks run immediately in parallel
- Tests only run after code quality verified
- Optimal resource utilization
- Clear dependency visualization
Performance Improvements:
- fmt/clippy/deny/audit: parallel execution (was sequential)
- Test execution: starts after quality checks pass (early failure detection)
- Coverage/benchmarks: parallel execution after tests
![github-advanced-security[bot]](https://avatars.githubusercontent.com/in/57789?s=60&v=4){kind=small}
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Author
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@codecov-ai-reviewer review |
Added `permissions` blocks to all jobs following principle of least privilege: - `contents: read` for all read-only jobs (msrv, fmt, clippy, deny, audit, package, coverage, benchmarks) - `contents: write` and `pull-requests: write` for test job (requires write access for README auto-commit) This addresses GitHub Advanced Security bot review findings.
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Summary
Restructured CI workflow for maximum parallelization and faster feedback cycles.
Architecture Changes
Previous Structure (Sequential)
New Structure (Parallel)
Job Breakdown
Parallel Quality Checks (runs immediately):
fmt: Code formatting (MSRV, nightly rustfmt)clippy: Linting (matrix: MSRV + stable)deny: License/dependency checks (MSRV)audit: Security audit (MSRV)Test Execution (after quality checks):
test: Full test suite (matrix: MSRV + stable)Post-Test Jobs (parallel):
package: Dry-run packaging (MSRV)coverage: Code coverage (stable)benchmarks: Performance tracking (stable)Performance Impact
Before: ~5 minutes (sequential execution)
After: ~2-3 minutes (parallel execution)
Key Improvements:
Benefits
Test Plan
Closes #181