Fix airshipctl config get-context maximum args

Limit the number of arguments that can be passed to
get-context command to 1 for now

Closes: #526
Change-Id: Ib140fc836e01c284c05719dfb7e3f29d0b191538

cmd/config/get_context.go

@@ -44,10 +44,12 @@ airshipctl config get-context exampleContext
 func NewGetContextCommand(cfgFactory config.Factory) *cobra.Command {
 	o := &config.ContextOptions{}
 	cmd := &cobra.Command{
-		Use:     "get-context [NAME]",
+		Use:     "get-context CONTEXT_NAME",
 		Short:   "Get context information from the airshipctl config",
 		Long:    getContextLong[1:],
 		Example: getContextExample,
+		// Adding a maximum args cap for documentation purpose
+		Args:    cobra.MaximumNArgs(1),
 		Aliases: []string{"get-contexts"},
 		RunE: func(cmd *cobra.Command, args []string) error {
 			airconfig, err := cfgFactory()

cmd/config/get_context_test.go

@@ -50,7 +50,7 @@ func TestGetContextCmd(t *testing.T) {
 		},
 		{
 			Name:    "get-all-contexts",
-			CmdLine: fmt.Sprintf("%s %s", fooContext, barContext),
+			CmdLine: fmt.Sprintf("%s", barContext),
 			Cmd:     cmd.NewGetContextCommand(settings),
 		},
 		// This is not implemented yet
@@ -58,6 +58,7 @@ func TestGetContextCmd(t *testing.T) {
 			Name:    "get-multiple-contexts",
 			CmdLine: fmt.Sprintf("%s %s", fooContext, barContext),
 			Cmd:     cmd.NewGetContextCommand(settings),
+			Error:   fmt.Errorf("accepts at most 1 arg(s), received 2"),
 		},
 
 		{

cmd/config/testdata/TestGetContextCmdGoldenOutput/get-all-contexts.golden

@@ -1,9 +1,3 @@
 managementConfiguration: ""
 manifest: Manifest_ContextBar
 
-managementConfiguration: ""
-manifest: Manifest_ContextBaz
-
-managementConfiguration: ""
-manifest: Manifest_ContextFoo
-

cmd/config/testdata/TestGetContextCmdGoldenOutput/get-multiple-contexts.golden

@@ -1,9 +1,23 @@
-managementConfiguration: ""
-manifest: Manifest_ContextBar
+Error: accepts at most 1 arg(s), received 2
+Usage:
+  get-context CONTEXT_NAME [flags]
 
-managementConfiguration: ""
-manifest: Manifest_ContextBaz
+Aliases:
+  get-context, get-contexts
 
-managementConfiguration: ""
-manifest: Manifest_ContextFoo
+Examples:
+
+# List all contexts
+airshipctl config get-contexts
+
+# Display the current context
+airshipctl config get-context --current
+
+# Display a specific context
+airshipctl config get-context exampleContext
+
+
+Flags:
+      --current   get the current context
+  -h, --help      help for get-context
 

cmd/config/testdata/TestGetContextCmdGoldenOutput/missing.golden

@@ -1,6 +1,6 @@
 Error: missing configuration: context with name 'contextMissing'
 Usage:
-  get-context [NAME] [flags]
+  get-context CONTEXT_NAME [flags]
 
 Aliases:
   get-context, get-contexts

docs/source/cli/airshipctl_config_get-context.md

@@ -8,7 +8,7 @@ Display information about contexts such as associated manifests, users, and clus
 
 
 ```
-airshipctl config get-context [NAME] [flags]
+airshipctl config get-context CONTEXT_NAME [flags]
 ```
 
 ### Examples