fix TLS in pd control

Signed-off-by: Ryan Leung <[email protected]>

tests/pdctl/cluster/cluster_test.go

@@ -15,6 +15,9 @@ package cluster_test
 
 import (
 	"encoding/json"
+	"io/ioutil"
+	"os"
+	"path/filepath"
 	"strings"
 	"testing"
 
@@ -23,6 +26,7 @@ import (
 	"github.com/pingcap/pd/server"
 	"github.com/pingcap/pd/tests"
 	"github.com/pingcap/pd/tests/pdctl"
+	ctl "github.com/pingcap/pd/tools/pd-ctl/pdctl"
 )
 
 func Test(t *testing.T) {
@@ -59,6 +63,16 @@ func (s *clusterTestSuite) TestClusterAndPing(c *C) {
 	c.Assert(json.Unmarshal(output, ci), IsNil)
 	c.Assert(ci, DeepEquals, cluster.GetCluster())
 
+	fname := filepath.Join(os.TempDir(), "stdout")
+	old := os.Stdout
+	temp, _ := os.Create(fname)
+	os.Stdout = temp
+	ctl.Start([]string{"-u", pdAddr, "--cacert=ca.pem", "cluster"})
+	temp.Close()
+	os.Stdout = old
+	out, _ := ioutil.ReadFile(fname)
+	c.Assert(strings.Contains(string(out), "no such file or directory"), IsTrue)
+
 	// cluster status
 	args = []string{"-u", pdAddr, "cluster", "status"}
 	_, output, err = pdctl.ExecuteCommandC(cmd, args...)

tools/pd-ctl/pdctl/ctl.go

@@ -67,6 +67,7 @@ func Start(args []string) {
 
 	rootCmd.SetArgs(args)
 	rootCmd.SilenceErrors = true
+	rootCmd.ParseFlags(args)
 	rootCmd.SetUsageTemplate(command.UsageTemplate)
 	rootCmd.SetOutput(os.Stdout)