FIX #1914 Reject command lines with trailing flags

Signed-off-by: David Gageot <david@gageot.net>

commands/create.go

@@ -1,7 +1,6 @@
 package commands
 
 import (
-	"errors"
 	"fmt"
 	"os"
 	"path/filepath"
@@ -21,10 +20,6 @@ import (
 	"github.com/docker/machine/libmachine/swarm"
 )
 
-var (
-	ErrDriverNotRecognized = errors.New("Driver not recognized.")
-)
-
 func cmdCreate(c *cli.Context) {
 	var (
 		driver drivers.Driver
@@ -56,6 +51,10 @@ func cmdCreate(c *cli.Context) {
 		log.Fatal("You must specify a machine name")
 	}
 
+	if len(c.Args()) > 1 {
+		log.Fatalf("Invalid command line. Found extra arguments %v", c.Args()[1:])
+	}
+
 	validName := host.ValidateHostName(name)
 	if !validName {
 		log.Fatal("Error creating machine: ", mcnerror.ErrInvalidHostname)

test/integration/cli/create-rm.bats

@@ -52,10 +52,10 @@ load ${BASE_TEST_DIR}/helpers.bash
   [[ ${lines[0]} == "Error creating machine: Machine A already exists" ]]
 }
 
-@test "none: extraneous argument is ignored in name 'machine create -d none --url none a foo'" {
-  run machine create -d none a foo
+@test "none: fail with extra argument 'machine create -d none --url none a extra'" {
+  run machine create -d none --url none a extra
   [ "$status" -eq 1 ]
-  [[ ${lines[0]} == "Host already exists: \"a\"" ]]
+  [[ ${lines[0]} == "Invalid command line. Found extra arguments [extra]" ]]
 }
 
 @test "none: create with weird but valid name succeeds 'machine create -d none --url none 0'" {