Implement --verbose flag (#3)

* add verbose flag

* print filtered-out task definition arns when verbose

cmd/ecs_task.go

@@ -18,6 +18,7 @@ the AWS CLI for the AWS account you want to clean up.`,
 			"cutoff":   cutoffFlag,
 			"parallel": parallelFlag,
 			"region":   regionFlag,
+			"verbose":  verboseFlag,
 		}
 
 		ecstask.Run(cmd, args, flags)
@@ -28,11 +29,13 @@ var applyFlag bool
 var cutoffFlag int
 var parallelFlag int
 var regionFlag string
+var verboseFlag bool
 
 func init() {
 	ecsTaskCmd.Flags().BoolVarP(&applyFlag, "apply", "a", false, "actually perform task definition deregistration")
 	ecsTaskCmd.Flags().IntVarP(&cutoffFlag, "cutoff", "c", 5, "how many most-recent task definitions to keep around")
 	ecsTaskCmd.Flags().IntVarP(&parallelFlag, "parallel", "p", 10, "how many concurrent deregistration requests to make")
 	ecsTaskCmd.Flags().StringVarP(&regionFlag, "region", "r", "us-west-2", "the AWS region in which to operate")
+	ecsTaskCmd.Flags().BoolVarP(&verboseFlag, "verbose", "v", false, "enable for chattier output")
 	rootCmd.AddCommand(ecsTaskCmd)
 }

ecstask/ecs_task.go

@@ -181,6 +181,11 @@ func Run(cmd *cobra.Command, args []string, flags map[string]interface{}) {
 	}
 
 	fmt.Printf("filtering out %d in-use task definitions\n", len(inUseTaskDefinitionArns))
+	if flags["verbose"].(bool) {
+		for _, arn := range inUseTaskDefinitionArns {
+			fmt.Println(arn)
+		}
+	}
 
 	allTaskDefinitionArns = removeAFromB(inUseTaskDefinitionArns, allTaskDefinitionArns)
 
@@ -219,15 +224,19 @@ func Run(cmd *cobra.Command, args []string, flags map[string]interface{}) {
 				familyTaskDefinitionArns = append(familyTaskDefinitionArns, arn)
 			}
 
-			fmt.Printf("\r(found %d)", len(familyTaskDefinitionArns))
-			needToResetPrinter = true
+			if flags["verbose"].(bool) {
+				fmt.Printf("\r(found %d)", len(familyTaskDefinitionArns))
+				needToResetPrinter = true
+			}
 		}
 
-		if needToResetPrinter {
-			fmt.Println()
-			needToResetPrinter = false
-		} else {
-			fmt.Printf("(found %d)\n", len(familyTaskDefinitionArns))
+		if flags["verbose"].(bool) {
+			if needToResetPrinter {
+				fmt.Println()
+				needToResetPrinter = false
+			} else {
+				fmt.Printf("(found %d)\n", len(familyTaskDefinitionArns))
+			}
 		}
 
 		familyTaskDefinitionArns = removeAFromB(inUseTaskDefinitionArns, familyTaskDefinitionArns)
@@ -244,6 +253,11 @@ func Run(cmd *cobra.Command, args []string, flags map[string]interface{}) {
 	}
 
 	fmt.Printf("filtering out %d recent task definitions across %d families\n", len(mostRecentActiveTaskDefinitionArns), len(inUseTaskDefinitionFamilies))
+	if flags["verbose"].(bool) {
+		for _, arn := range mostRecentActiveTaskDefinitionArns {
+			fmt.Println(arn)
+		}
+	}
 
 	allTaskDefinitionArns = removeAFromB(mostRecentActiveTaskDefinitionArns, allTaskDefinitionArns)