fix(pipelineSave): Fixed issue for pipeline save with spinnaker 1.21.x (spinnaker#287)

With latest spinnaker version The ApplicationControllerApi.GetPipelineConfigUsingGET returns 404 for non-existing pipeline.
Updated pipeline save to check for status http.StatusOK and foundPipeline both.

(cherry picked from commit f971df5)

Co-authored-by: Ganesh Sapkal <[email protected]>

Author: mergify[bot]

cmd/pipeline/save.go

@@ -85,13 +85,9 @@ func savePipeline(cmd *cobra.Command, options *saveOptions) error {
 
 	foundPipeline, queryResp, _ := options.GateClient.ApplicationControllerApi.GetPipelineConfigUsingGET(options.GateClient.Context, application, pipelineName)
 
-	if queryResp.StatusCode != http.StatusOK {
-		return fmt.Errorf("Encountered an error querying pipeline, status code: %d\n", queryResp.StatusCode)
-	}
-
 	_, exists := pipelineJson["id"].(string)
 	var foundPipelineId string
-	if len(foundPipeline) > 0 {
+	if queryResp.StatusCode == http.StatusOK && len(foundPipeline) > 0 {
 		foundPipelineId = foundPipeline["id"].(string)
 	}
 	if !exists && foundPipelineId != "" {