use noArgs instead of manual checks

cmd/cycles.go

@@ -30,12 +30,8 @@ var cyclesCmd = &cobra.Command{
 	Use:   "cycles",
 	Short: "Prints cycles in dependency chains.",
 	Long:  `Will show all the cycles in the dependencies of the project.`,
+	Args:  cobra.NoArgs,
 	RunE: func(cmd *cobra.Command, args []string) error {
-
-		if len(args) != 0 {
-			return fmt.Errorf("cycles does not take any arguments")
-		}
-
 		overview := getDepInfo(nil)
 		var cycleChains []Chain
 		var temp Chain

cmd/list.go

@@ -28,12 +28,8 @@ var listCmd = &cobra.Command{
 	Short: "Lists all project dependencies",
 	Long: `Gives a list of all the dependencies of the project. 
 	These include both direct as well as transitive dependencies.`,
+	Args: cobra.NoArgs,
 	RunE: func(cmd *cobra.Command, args []string) error {
-
-		if len(args) != 0 {
-			return fmt.Errorf("list does not take any arguments")
-		}
-
 		depGraph := getDepInfo(nil)
 		fmt.Println("List of all dependencies:")
 		allDeps := getAllDeps(depGraph.DirectDepList, depGraph.TransDepList)

cmd/stats.go

@@ -40,13 +40,10 @@ var statsCmd = &cobra.Command{
 	2. Transitive Dependencies: Total number of transitive dependencies (dependencies which are further needed by direct dependencies of the project)
 	3. Total Dependencies: Total number of dependencies of the mainModule(s)
 	4. Max Depth of Dependencies: Length of the longest chain starting from the first mainModule; defaults to length from the first module encountered in "go mod graph" output`,
+	Args: cobra.NoArgs,
 	RunE: func(cmd *cobra.Command, args []string) error {
 		depGraph := getDepInfo(mainModules)
 
-		if len(args) != 0 {
-			return fmt.Errorf("stats does not take any arguments")
-		}
-
 		// get the longest chain
 		var temp Chain
 		longestChain := getLongestChain(depGraph.MainModules[0], depGraph.Graph, temp, map[string]Chain{})