v0.15.0

[yimsk]

Summary

• feat: GameLift initial support — 6 resources (builds, fleets, game-sessions, game-session-queues, matchmaking-configs, scripts)
• fix: error handling for gamelift resource retrieval

Contributed by @dpalvolgyi-pw (#163)

[claude]

PR Review: v0.15.0 - GameLift Support

Summary

This PR adds initial GameLift support with 6 resources (builds, fleets, game-sessions, game-session-queues, matchmaking-configs, scripts). Overall, this is high-quality code that follows existing codebase patterns well. The implementation demonstrates solid understanding of the project architecture.

Code Quality Assessment

✅ Strengths

1. Excellent Nil Pointer Safety

   • Comprehensive nil checks before dereferencing pointers
   • Consistent use of appaws.Str(), appaws.Int32(), appaws.Int64(), appaws.Bool() helpers
   • Proper validation in all Get() methods (e.g., builds/dao.go:64-66, fleets/dao.go:64-65)

2. Correct Pagination Implementation

   • All resources properly use appaws.Paginate() helper
   • Handles NextToken correctly
   • Context cancellation support throughout

3. Good DAO Design Patterns

   • Consistent structure across all resources
   • Proper embedding of dao.BaseResource
   • Type-safe accessor methods
   • Special handling for read-only resources (game-sessions correctly implements Supports() to disable delete)

4. Proper Error Propagation in DAOs

   • Consistent use of apperrors.Wrap() and apperrors.Wrapf()
   • Contextual error messages throughout

⚠️ Issues Found

Priority 1: Error Handling Inconsistency in Actions

Issue: All GameLift action files use fmt.Errorf() instead of the action.FailResultf() pattern used in EC2.

Current pattern (GameLift):

// builds/actions.go:55
return action.ActionResult{Success: false, Error: fmt.Errorf("delete build: %w", err)}

Expected pattern (EC2):

// ec2/instances/actions.go:81
return action.FailResultf(err, "start instance %s", instanceID)

Files affected:

• custom/gamelift/builds/actions.go:55
• custom/gamelift/fleets/actions.go:55
• custom/gamelift/game-session-queues/actions.go:55
• custom/gamelift/matchmaking-configs/actions.go:55
• custom/gamelift/scripts/actions.go:55

Why this matters: Using action.FailResultf() ensures consistent error handling and logging across the codebase.

Recommended fix:

if err != nil {
    return action.FailResultf(err, "delete build %s", buildId)
}

Also note that EC2 uses a centralized client helper (appec2.GetClient(ctx)), while GameLift creates clients inline. Consider adding custom/gamelift/client.go for consistency.

📋 Test Coverage

Concern: No test files found in custom/gamelift/. While the existing codebase has limited test coverage (only custom/ec2/instances/resource_test.go found), adding tests for at least one resource would be valuable, especially for:

• DAO pagination logic
• Error handling paths
• Resource type assertions in actions

Consider adding basic unit tests for at least one representative resource (e.g., builds) as a pattern for future GameLift resources.

🔒 Security Review

Assessment: No security concerns identified.

• ✅ All delete operations properly use action.ConfirmDangerous
• ✅ No SQL injection vectors (AWS SDK handles parameterization)
• ✅ No XSS risks in rendering (using type-safe formatters)
• ✅ Context properly propagated for cancellation
• ✅ No hardcoded credentials or secrets

⚡ Performance Review

Assessment: Well optimized.

• ✅ Efficient pagination with streaming support
• ✅ No unnecessary API calls
• ✅ Memory efficient (pre-allocated slices)
• ✅ Proper context propagation for cancellation

📝 Additional Observations

1. game-sessions special case - The filter-based listing pattern (game-sessions/dao.go:36-39) is unconventional but appropriate for this resource type. The requirement for a FleetId filter is correctly enforced.

2. Minor cosmetic issue - In builds/render.go:116-122, when size is 0, it displays "0 bytes". Consider omitting the field or showing "Unknown" instead.

3. Code duplication - Each actions file duplicates client creation logic. EC2 centralizes this with appec2.GetClient(ctx). Consider adding a similar helper in custom/gamelift/client.go.

Final Recommendation

Status: Approve with Changes Requested

The code is well-structured and follows existing patterns closely. The only blocking issue is the error handling inconsistency in the actions files. Once that's addressed, this PR is ready to merge.

Required Changes:

1. ✅ Update all 5 GameLift actions files to use action.FailResultf() instead of raw fmt.Errorf()

Suggested Improvements (non-blocking):

2. Consider adding a custom/gamelift/client.go helper for consistent client creation
3. Consider adding basic unit tests for at least one resource
4. Consider omitting or improving the "Size on Disk" display when size is 0

Great work on this implementation! 🎯

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Review conducted using Claude Code