omitempty on possible null flields

internal/models/structs.go

@@ -33,7 +33,7 @@ type PendingInformation struct {
 	ID           int               `json:"id"`
 	Data         string            `json:"data"`
 	Labels       map[string]string `json:"labels"`
-	Dependencies string            `json:"dependencies"`
+	Dependencies string            `json:"dependencies,omitempty"`
 	RunOn        string            `json:"run_on"`
 	DepStatus    string            `json:"-"` // dont need those
 	AgentId      int               `json:"agent_id"`
@@ -48,9 +48,9 @@ type Stats struct {
 }
 
 type QueueInfo struct {
-	Pending       []PendingInformation `json:"pending"`
+	Pending       []PendingInformation `json:"pending,omitempty"`
 	WaitingOnDeps string               `json:"-"` // dont need those
-	Running       int                  `json:"running"`
+	Running       int                  `json:"running,omitempty"`
 	Stats         Stats                `json:"stats"`
 	Paused        bool                 `json:"paused"`
 }

internal/woodpecker/metrics.go

@@ -41,6 +41,7 @@ func CheckPending(cfg *config.Config) error {
 		return errors.New(fmt.Sprintf("Error from QueueInfo: %s", err.Error()))
 	}
 	if queueInfo.Stats.PendingCount > 0 {
+		// TODO: queueInfo.Pending may be empty
 		for _, pendingJobs := range queueInfo.Pending {
 			// TODO: separate key and value from LabelSelector and compare them deeply
 			_, exists := pendingJobs.Labels[cfg.LabelSelector]