add check kubeconfig function

cmd/add.go

@@ -20,6 +20,7 @@ import (
 	"github.com/spf13/cobra"
 	"gopkg.in/yaml.v2"
 	"io/ioutil"
+	"k8s.io/client-go/tools/clientcmd"
 	"log"
 	"os"
 	"strings"
@@ -81,12 +82,17 @@ kubecm add -f example.yaml -c
 `,
 	Run: func(cmd *cobra.Command, args []string) {
 		if FileExists(file) {
+			err := ConfigCheck(file)
+			if err != nil {
+				fmt.Println(err)
+				os.Exit(1)
+			}
 			cover, _ = cmd.Flags().GetBool("cover")
 			oldYaml := Config{}
 			oldYaml.ReadYaml(cfgFile)
 			addYaml := Config{}
 			addYaml.ReadYaml(file)
-			err := oldYaml.MergeConfig(addYaml)
+			err = oldYaml.MergeConfig(addYaml)
 			if err != nil {
 				fmt.Println(err)
 			}
@@ -188,3 +194,11 @@ func (c *Config) Check(name string) error {
 	}
 	return nil
 }
+
+func ConfigCheck(kubeconfigPath string) error {
+	_, err := clientcmd.BuildConfigFromFlags("", kubeconfigPath)
+	if err != nil {
+		return err
+	}
+	return nil
+}

cmd/merge.go

@@ -31,7 +31,7 @@ var mergeCmd = &cobra.Command{
 	Use:   "merge",
 	Short: "Merge the kubeconfig files in the specified directory.",
 	Long:  `Merge the kubeconfig files in the specified directory.`,
-	Example:`
+	Example: `
 # Merge kubeconfig in the test directory
 kubecm merge -f test 
 
@@ -41,12 +41,17 @@ kubecm merge -f test -c
 	Run: func(cmd *cobra.Command, args []string) {
 		cover, _ = cmd.Flags().GetBool("cover")
 		files := listFile(folder)
-		fmt.Printf("Loading kubeconfig file:%v \n" , files)
+		fmt.Printf("Loading kubeconfig file: %v \n", files)
 		mergeYaml := Config{}
 		for _, yaml := range files {
+			err := ConfigCheck(yaml)
+			if err != nil {
+				fmt.Printf("Please check kubeconfig file: %v \n%s", yaml, err)
+				os.Exit(1)
+			}
 			tmpYaml := Config{}
 			tmpYaml.ReadYaml(yaml)
-			err := mergeYaml.MergeAllConfig(tmpYaml, yaml)
+			err = mergeYaml.MergeAllConfig(tmpYaml, yaml)
 			if err != nil {
 				fmt.Println(err)
 			}

go.mod

@@ -4,7 +4,21 @@ go 1.12
 
 require (
 	github.com/bndr/gotabulate v1.1.2
+	github.com/gogo/protobuf v1.2.1 // indirect
+	github.com/imdario/mergo v0.3.7 // indirect
+	github.com/json-iterator/go v1.1.7 // indirect
 	github.com/mitchellh/go-homedir v1.1.0
+	github.com/modern-go/reflect2 v1.0.1 // indirect
 	github.com/spf13/cobra v0.0.5
+	golang.org/x/net v0.0.0-20190724013045-ca1201d0de80 // indirect
+	golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45 // indirect
+	golang.org/x/time v0.0.0-20190308202827-9d24e82272b4 // indirect
+	gopkg.in/inf.v0 v0.9.1 // indirect
 	gopkg.in/yaml.v2 v2.2.2
+	k8s.io/api v0.0.0-20190313235455-40a48860b5ab
+	k8s.io/apimachinery v0.0.0-20190313205120-d7deff9243b1
+	k8s.io/client-go v11.0.0+incompatible
+	k8s.io/klog v0.3.3 // indirect
+	k8s.io/utils v0.0.0-20190801114015-581e00157fb1 // indirect
+	sigs.k8s.io/yaml v1.1.0 // indirect
 )