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Seth Ford edited this page Mar 2, 2026 · 10 revisions

Perfect! I've completed a comprehensive implementation plan for the hello command feature. Here's a summary:

📋 Implementation Plan Summary

✅ Status: COMPLETE & TESTED

The hello command is fully implemented with all tests passing (5/5 green).

📁 Files Modified

New Files:

  • scripts/sw-hello.sh (67 lines) — Command implementation
  • scripts/sw-hello-test.sh (66 lines) — Comprehensive test suite

Modified Files:

  • scripts/sw (line 605-606) — Router registration

🎯 Requirements & Acceptance Criteria

All criteria met:

  • ✅ Command outputs exactly "hello world"
  • ✅ Works with both shipwright hello and sw hello (alias)
  • ✅ Supports --help and -h flags
  • ✅ Exit code 0 on success, 1 on error
  • ✅ Follows Shipwright bash conventions (3.2 compatible, pipefail, VERSION, ERR trap)
  • ✅ All tests pass

🏗️ Architecture Decision

Selected: Standalone Script Pattern (Option A)

  • Follows Shipwright's proven modular architecture with 100+ existing commands
  • Each command is a separate script, registered via case statement in router
  • Minimal blast radius (new files only)
  • Highly testable and maintainable

Rejected Alternatives:

  • Inline in router: Violates patterns, creates architectural debt
  • Shared library: Over-engineered (YAGNI violation)

🧪 Test Results

✓ hello outputs 'hello world'
✓ hello --help shows help text  
✓ hello -h shows help text
✓ hello exits with code 0
✓ hello with invalid option exits with non-zero code

All 5 tests passed

⚠️ Risk Analysis

Risk Likelihood Status
Router registration not wired Low ✅ MITIGATED (verified)
Output format mismatch Very Low ✅ MITIGATED (test confirmed exact match)
Exit codes incorrect Very Low ✅ MITIGATED (tests pass)
Help text fails Very Low ✅ MITIGATED (both flags tested)
Namespace collision Very Low ✅ MITIGATED (unique name)
Symlink resolution fails Very Low ✅ MITIGATED (tests pass)

📊 Task Breakdown

  • ✅ Task 1: Create sw-hello.sh script with proper conventions
  • ✅ Task 2: Register command in router (scripts/sw)
  • ✅ Task 3: Create comprehensive test suite (5 test cases)
  • ✅ Task 4: Verify Bash conventions compliance
  • ✅ Task 5: Execute tests and verify all pass

📝 Full Documentation

Complete plan saved to: .claude/IMPLEMENTATION_PLAN.md

Includes:

  • Executive summary
  • Requirements analysis
  • Design alternatives with trade-off analysis
  • Risk assessment with mitigations
  • Definition of done checklist
  • Testing strategy
  • Deployment & rollback procedures
  • Metrics & success criteria
  • Implementation notes for future extensions

✨ Next Steps

The plan is complete and ready to proceed to the design stage of the pipeline. The implementation has been verified to be:

  • ✅ Complete
  • ✅ Tested
  • ✅ Following all conventions
  • ✅ Ready for code review

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