[#56] Disable context switching with set-context

Users can change their current context by executing airshipctl config
set-context [NAME]. The use-context subcommand was recently introduced
to replace this behavior. This change removes the original behavior.

Closes #56

Change-Id: Ib962d1d69a198c897aff18759fef869ee04d1beb
Signed-off-by: Drew Walters <andrew.walters@att.com>

cmd/config/set_context.go

@@ -60,11 +60,13 @@ func NewCmdConfigSetContext(rootSettings *environment.AirshipCTLSettings) *cobra
 		Example: setContextExample,
 		Args:    cobra.MaximumNArgs(1),
 		RunE: func(cmd *cobra.Command, args []string) error {
+			o.Name = args[0]
 			nFlags := cmd.Flags().NFlag()
 			if nFlags == 0 {
-				// Change the current context to the provided context name if no flags are provided
-				o.CurrentContext = true
+				fmt.Fprintf(cmd.OutOrStdout(), "Context %q not modified. No new options provided.\n", o.Name)
+				return nil
 			}
+
 			if len(args) == 1 {
 				//context name is made optional with --current flag added
 				o.Name = args[0]

cmd/config/set_context_test.go

@@ -51,6 +51,11 @@ func TestConfigSetContext(t *testing.T) {
 			CmdLine: "--help",
 			Cmd:     NewCmdConfigSetContext(nil),
 		},
+		{
+			Name:    "config-cmd-set-context-no-flags",
+			CmdLine: "context",
+			Cmd:     NewCmdConfigSetContext(nil),
+		},
 		{
 			Name:    "config-cmd-set-context-too-many-args",
 			CmdLine: "arg1 arg2",
@@ -101,7 +106,7 @@ func TestSetContext(t *testing.T) {
 	test.run(t)
 }
 
-func TestSetCurrentContext(t *testing.T) {
+func TestSetCurrentContextNoOptions(t *testing.T) {
 	tname := "def_target"
 	given, cleanupGiven := config.InitConfig(t)
 	defer cleanupGiven(t)
@@ -112,10 +117,9 @@ func TestSetCurrentContext(t *testing.T) {
 	expected.CurrentContext = "def_target"
 
 	test := setContextTest{
-		description:    "Testing 'airshipctl config set-context' with a new current context",
 		givenConfig:    given,
 		args:           []string{tname},
-		expectedOutput: fmt.Sprintf("Context %q modified.\n", tname),
+		expectedOutput: fmt.Sprintf("Context %q not modified. No new options provided.\n", tname),
 		expectedConfig: expected,
 	}
 	test.run(t)

cmd/config/testdata/TestConfigSetContextGoldenOutput/config-cmd-set-context-no-flags.golden

@@ -0,0 +1 @@
+Context "context" not modified. No new options provided.