Function mergeMaps

pkg/engine/engine.go:1780–1799

Imported from Helm https://github.com/helm/helm/blob/c6beb169d26751efd8131a5d65abe75c81a334fb/pkg/cli/values/options.go#L108

(a, b map[string]any)

// Imported from Helm
// https://github.com/helm/helm/blob/c6beb169d26751efd8131a5d65abe75c81a334fb/pkg/cli/values/options.go#L108
func mergeMaps(a, b map[string]any) map[string]any {
	out := make(map[string]any, len(a))
	maps.Copy(out, a)

	for key, val := range b {
		if vm, ok := val.(map[string]any); ok {
			if bv, ok := out[key]; ok {
				if bvm, ok := bv.(map[string]any); ok {
					out[key] = mergeMaps(bvm, vm)

					continue
				}
			}
		}

		out[key] = val
	}

	return out
}

// isTalosConfigPatch checks if a YAML document is a Talos config patch.
// Returns (isTalosPatch, parseError) - parseError is non-nil if YAML is invalid.