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fix: improve robustness with nil-safe context handling and proper error propagation#664

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Rayhan1967 wants to merge 12 commits intolaunchdarkly:mainfrom
Rayhan1967:fix/high-priority-issues
Open

fix: improve robustness with nil-safe context handling and proper error propagation#664
Rayhan1967 wants to merge 12 commits intolaunchdarkly:mainfrom
Rayhan1967:fix/high-priority-issues

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@Rayhan1967
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@Rayhan1967 Rayhan1967 commented Mar 18, 2026

Summary

This PR improves the robustness of the LaunchDarkly CLI by addressing critical error handling gaps and enhancing CI/CD configuration stability.

Changes

Bug Fixes

internal/dev_server/model/store.go

  • Issue: StoreFromContext would panic if the store was not found in context
  • Fix: Added nil-safe check before type assertion
  • Impact: Prevents runtime panics when context is missing expected values
// Before: would panic on missing store
return ctx.Value(ctxKeyStore).(Store)

// After: returns nil gracefully
if store := ctx.Value(ctxKeyStore); store != nil {
    return store.(Store)
}
return nil

internal/resources/client.go

  • Issue: http.NewRequest errors were silently ignored
  • Fix: Properly handle and propagate errors from request creation
  • Impact: Invalid requests now return meaningful errors instead of causing downstream nil pointer issues
// Before: error ignored
req, _ := http.NewRequest(...)

// After: error propagated
req, err := http.NewRequest(...)
if err != nil {
    return nil, err
}

internal/dev_server/adapters/sdk.go

  • Issue: Added nil-safe GetSdk function and Close() method to interface
  • Impact: Consistent nil-safe patterns across context helpers, proper interface for cleanup

CI/CD Improvements

.github/workflows/go.yml

  • Pinned Go version to 1.23 (explicit) instead of stable
  • Added Go module caching for faster builds
  • Updated runner to explicit ubuntu-24.04
  • Upgraded setup-go to @v5

.github/workflows/lint-pr-title.yml

  • Added explicit permissions: contents: read for least-privilege security
  • Added inline documentation explaining safe pull_request_target usage

Testing

✅ All existing tests pass
✅ Build succeeds
✅ No breaking changes to public APIs

Checklist

  • Changes follow project conventions
  • Tested locally
  • No breaking changes
  • All tests pass

rayhan1967 and others added 5 commits February 20, 2026 22:45
- Fix invalid on-failure block in check-openapi-updates.yml workflow
- Add --host flag to dev-server (default 127.0.0.1, use 0.0.0.0 for external connections)
- Update test golden file to include new host flag
… improvements

- Add nil check in StoreFromContext to prevent panic
- Handle HTTP request error properly in resources client
- Implement SDK client caching to avoid creating new clients per request
- Pin Go version to 1.23 in CI workflow
- Add security documentation for pull_request_target workflow
SLACK_TITLE: ':warning: The OpenAPI spec has changed and resources need to be updated.'
SLACK_USERNAME: github
SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK_URL }}
continue-on-error: true
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Slack failure notification silently removed and replaced with no-op

Medium Severity

The on-failure job that sent Slack notifications when the OpenAPI spec check failed has been completely removed and replaced with continue-on-error: true at the job level. This silently swallows failures instead of alerting the team, meaning the team will no longer be notified when the OpenAPI spec changes and resources need updating.

Fix in Cursor Fix in Web

Rayhan1967 and others added 4 commits March 19, 2026 00:42
…cern

- Add cleanup goroutine that runs every minute
- Idle clients (no refs, unused for 5 minutes) are automatically closed
- Add Close() method to Sdk interface for graceful shutdown
- Update mock to implement the new Close() method
- Simplified SDK client caching without background cleanup goroutines
- Cached clients stored per streamingSdk instance (request-scoped)
- Added Close() method for graceful cleanup on server shutdown
- Made GetSdk nil-safe to match StoreFromContext fix

This reduces the concurrency complexity while maintaining the performance benefit of SDK client reuse within a server instance lifecycle.
Rayhan1967 and others added 3 commits March 19, 2026 01:05
- Add GetOutputKind function from main branch
- Keep HostFlag and HostFlagDescription from fix branch
- Add JSONFlag and JSONFlagDescription from main branch
- Ensure all constants are properly exported
… leak

Revert to original approach with proper defer Close() to:
- Fix race condition where concurrent requests could create multiple clients
- Ensure SDK clients are properly closed after each request
- Maintain interface compatibility with Close() method (returns nil)

The original caching approach had check-then-create-then-set race condition
that could leak clients and was ineffective since newSdk() is called per request.
@Rayhan1967 Rayhan1967 changed the title fix: critical issues - error handling, resource management, and CI/CD improvements fix: improve robustness with nil-safe context handling and proper error propagation Mar 18, 2026
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Cursor Bugbot has reviewed your changes and found 1 potential issue.

There are 2 total unresolved issues (including 1 from previous review).

Fix All in Cursor

return "json"
}
return viper.GetString(OutputFlag)
}
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New exported function GetOutputKind is never called

Low Severity

The newly added exported function GetOutputKind is not called anywhere in the codebase. Additionally, the JSONFlag constant it references ("json") is never registered as a persistent boolean flag on any command, so cmd.Root().PersistentFlags().GetBool(JSONFlag) would always return an error, making the "json" branch unreachable even if the function were called.

Fix in Cursor Fix in Web

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