feat: #173 Adds support for logout command (#176)

Signed-off-by: Harsh4902 <[email protected]>

Author: Harsh4902

cmd/cmd.go

@@ -46,6 +46,7 @@ func NewCommad() *cobra.Command {
 	command.AddCommand(NewStopCommand())
 	command.AddCommand(NewContextCommand())
 	command.AddCommand(NewLoginCommand(&clientOpts))
+	command.AddCommand(NewLogoutCommand(&clientOpts))
 
 	defaultLocalConfigPath, err := config.DefaultLocalConfigPath()
 	errors.CheckError(err)

cmd/logout.go

@@ -0,0 +1,54 @@
+package cmd
+
+import (
+	"fmt"
+	"log"
+	"os"
+
+	"github.com/microcks/microcks-cli/pkg/config"
+	"github.com/microcks/microcks-cli/pkg/connectors"
+	"github.com/microcks/microcks-cli/pkg/errors"
+	"github.com/spf13/cobra"
+)
+
+func NewLogoutCommand(globalClientOpts *connectors.ClientOptions) *cobra.Command {
+
+	logoutCmd := &cobra.Command{
+		Use:   "logout CONTEXT",
+		Short: "Log out from Microcks",
+		Long:  "Log out from Microcks",
+		Example: `# To log out of Microcks
+$ microcks logout`,
+
+		Run: func(cmd *cobra.Command, args []string) {
+			if len(args) == 0 {
+				cmd.HelpFunc()(cmd, args)
+				os.Exit(1)
+			}
+
+			context := args[0]
+			localCfg, err := config.ReadLocalConfig(globalClientOpts.ConfigPath)
+			errors.CheckError(err)
+			if localCfg == nil {
+				log.Fatalf("Nothing to logout from")
+			}
+
+			// Remove authToken
+			ok := localCfg.RemoveToken(context)
+			if !ok {
+				log.Fatalf("Context %s does not exist", context)
+			}
+
+			err = config.ValidateLocalConfig(*localCfg)
+			if err != nil {
+				log.Fatalf("Error in loging out: %s", err)
+			}
+			err = config.WriteLocalConfig(*localCfg, globalClientOpts.ConfigPath)
+			errors.CheckError(err)
+
+			fmt.Printf("Logged out from '%s'\n", context)
+		},
+	}
+
+	return logoutCmd
+}

pkg/config/localconfig.go

@@ -222,6 +222,18 @@ func (l *LocalConfig) RemoveContext(serverName string) (string, bool) {
 	return "", false
 }
 
+// Returns true if user was removed successfully
+func (l *LocalConfig) RemoveToken(serverName string) bool {
+	for i, u := range l.Users {
+		if u.Name == serverName {
+			l.Users[i].RefreshToken = ""
+			l.Users[i].AuthToken = ""
+			return true
+		}
+	}
+	return false
+}
+
 func (l *LocalConfig) GetUser(name string) (*User, error) {
 	for _, u := range l.Users {
 		if u.Name == name {