commands: move leave command to separate pkg

command/commands.go

@@ -21,6 +21,7 @@ import (
 	"github.com/hashicorp/consul/command/kvget"
 	"github.com/hashicorp/consul/command/kvimp"
 	"github.com/hashicorp/consul/command/kvput"
+	"github.com/hashicorp/consul/command/leave"
 	"github.com/hashicorp/consul/command/validate"
 	"github.com/hashicorp/consul/version"
 	"github.com/mitchellh/cli"
@@ -136,12 +137,7 @@ func init() {
 		},
 
 		"leave": func() (cli.Command, error) {
-			return &LeaveCommand{
-				BaseCommand: BaseCommand{
-					Flags: FlagSetClientHTTP,
-					UI:    ui,
-				},
-			}, nil
+			return leave.New(ui), nil
 		},
 
 		"lock": func() (cli.Command, error) {

command/leave.go

@@ -1,52 +0,0 @@
-package command
-
-import (
-	"fmt"
-)
-
-// LeaveCommand is a Command implementation that instructs
-// the Consul agent to gracefully leave the cluster
-type LeaveCommand struct {
-	BaseCommand
-}
-
-func (c *LeaveCommand) Help() string {
-	c.InitFlagSet()
-	return c.HelpCommand(`
-Usage: consul leave [options]
-
-  Causes the agent to gracefully leave the Consul cluster and shutdown.
-
-`)
-}
-
-func (c *LeaveCommand) Run(args []string) int {
-	c.InitFlagSet()
-	if err := c.FlagSet.Parse(args); err != nil {
-		return 1
-	}
-	nonFlagArgs := c.FlagSet.Args()
-	if len(nonFlagArgs) > 0 {
-		c.UI.Error(fmt.Sprintf("Error found unexpected args: %v", nonFlagArgs))
-		c.UI.Output(c.Help())
-		return 1
-	}
-
-	client, err := c.HTTPClient()
-	if err != nil {
-		c.UI.Error(fmt.Sprintf("Error connecting to Consul agent: %s", err))
-		return 1
-	}
-
-	if err := client.Agent().Leave(); err != nil {
-		c.UI.Error(fmt.Sprintf("Error leaving: %s", err))
-		return 1
-	}
-
-	c.UI.Output("Graceful leave complete")
-	return 0
-}
-
-func (c *LeaveCommand) Synopsis() string {
-	return "Gracefully leaves the Consul cluster and shuts down"
-}

command/leave/leave.go

@@ -0,0 +1,66 @@
+package leave
+
+import (
+	"flag"
+	"fmt"
+
+	"github.com/hashicorp/consul/command/flags"
+	"github.com/mitchellh/cli"
+)
+
+func New(ui cli.Ui) *cmd {
+	c := &cmd{UI: ui}
+	c.initFlags()
+	return c
+}
+
+type cmd struct {
+	UI    cli.Ui
+	flags *flag.FlagSet
+	http  *flags.HTTPFlags
+}
+
+func (c *cmd) initFlags() {
+	c.flags = flag.NewFlagSet("", flag.ContinueOnError)
+	c.http = &flags.HTTPFlags{}
+	flags.Merge(c.flags, c.http.ClientFlags())
+	flags.Merge(c.flags, c.http.ServerFlags())
+}
+
+func (c *cmd) Run(args []string) int {
+	if err := c.flags.Parse(args); err != nil {
+		return 1
+	}
+	nonFlagArgs := c.flags.Args()
+	if len(nonFlagArgs) > 0 {
+		c.UI.Error(fmt.Sprintf("Error found unexpected args: %v", nonFlagArgs))
+		c.UI.Output(c.Help())
+		return 1
+	}
+
+	client, err := c.http.APIClient()
+	if err != nil {
+		c.UI.Error(fmt.Sprintf("Error connecting to Consul agent: %s", err))
+		return 1
+	}
+
+	if err := client.Agent().Leave(); err != nil {
+		c.UI.Error(fmt.Sprintf("Error leaving: %s", err))
+		return 1
+	}
+
+	c.UI.Output("Graceful leave complete")
+	return 0
+}
+
+func (c *cmd) Synopsis() string {
+	return "Gracefully leaves the Consul cluster and shuts down"
+}
+
+func (c *cmd) Help() string {
+	s := `Usage: consul leave [options]
+
+  Causes the agent to gracefully leave the Consul cluster and shutdown.`
+
+	return flags.Usage(s, c.flags, c.http.ClientFlags(), c.http.ServerFlags())
+}

command/leave/leave_test.go

@@ -1,4 +1,4 @@
-package command
+package leave
 
 import (
 	"strings"
@@ -8,19 +8,11 @@ import (
 	"github.com/mitchellh/cli"
 )
 
-func testLeaveCommand(t *testing.T) (*cli.MockUi, *LeaveCommand) {
-	ui := cli.NewMockUi()
-	return ui, &LeaveCommand{
-		BaseCommand: BaseCommand{
-			UI:    ui,
-			Flags: FlagSetClientHTTP,
-		},
-	}
-}
-
-func TestLeaveCommand_implements(t *testing.T) {
+func TestLeaveCommand_noTabs(t *testing.T) {
 	t.Parallel()
-	var _ cli.Command = &LeaveCommand{}
+	if strings.ContainsRune(New(nil).Help(), '\t') {
+		t.Fatal("usage has tabs")
+	}
 }
 
 func TestLeaveCommandRun(t *testing.T) {
@@ -28,7 +20,8 @@ func TestLeaveCommandRun(t *testing.T) {
 	a := agent.NewTestAgent(t.Name(), ``)
 	defer a.Shutdown()
 
-	ui, c := testLeaveCommand(t)
+	ui := cli.NewMockUi()
+	c := New(ui)
 	args := []string{"-http-addr=" + a.HTTPAddr()}
 
 	code := c.Run(args)
@@ -46,7 +39,8 @@ func TestLeaveCommandFailOnNonFlagArgs(t *testing.T) {
 	a := agent.NewTestAgent(t.Name(), ``)
 	defer a.Shutdown()
 
-	_, c := testLeaveCommand(t)
+	ui := cli.NewMockUi()
+	c := New(ui)
 	args := []string{"-http-addr=" + a.HTTPAddr(), "appserver1"}
 
 	code := c.Run(args)