feat(reset) add workspace support to reset command

Two flags have been added:
-w/--workspaces: specify the workspace to reset
--all-workspaces: reset all the workspaces

Fix #74

cmd/reset.go

@@ -9,10 +9,15 @@ import (
 	"github.com/hbagdi/deck/dump"
 	"github.com/hbagdi/deck/reset"
 	"github.com/hbagdi/deck/utils"
+	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 )
 
-var resetCmdForce bool
+var (
+	resetCmdForce      bool
+	resetWorkspace     string
+	resetAllWorkspaces bool
+)
 
 // resetCmd represents the reset command
 var resetCmd = &cobra.Command{
@@ -34,17 +39,54 @@ By default, this command will ask for a confirmation prompt.`,
 				return nil
 			}
 		}
+
 		client, err := utils.GetKongClient(config)
 		if err != nil {
 			return err
 		}
-		state, err := dump.Get(client, dumpConfig)
-		if err != nil {
-			return err
+		// Kong OSS or default workspace
+		if !resetAllWorkspaces && resetWorkspace == "" {
+			state, err := dump.Get(client, dumpConfig)
+			if err != nil {
+				return err
+			}
+			err = reset.Reset(state, client)
+			if err != nil {
+				return err
+			}
+			return nil
 		}
-		err = reset.Reset(state, client)
-		if err != nil {
-			return err
+
+		if resetAllWorkspaces && resetWorkspace != "" {
+			return errors.New("workspace cannot be specified with --all-workspace flag")
+		}
+
+		// Kong Enterprise
+		var workspaces []string
+		if resetAllWorkspaces {
+			workspaces, err = listWorkspaces(client, config.Address)
+			if err != nil {
+				return err
+			}
+		}
+		if resetWorkspace != "" {
+			workspaces = append(workspaces, resetWorkspace)
+		}
+
+		for _, workspace := range workspaces {
+			config.Workspace = workspace
+			client, err := utils.GetKongClient(config)
+			if err != nil {
+				return err
+			}
+			state, err := dump.Get(client, dumpConfig)
+			if err != nil {
+				return err
+			}
+			err = reset.Reset(state, client)
+			if err != nil {
+				return err
+			}
 		}
 		return nil
 	},
@@ -78,6 +120,11 @@ func init() {
 	resetCmd.Flags().BoolVar(&dumpConfig.SkipConsumers, "skip-consumers",
 		false, "do not reset consumers or "+
 			"any plugins associated with consumers")
+	resetCmd.Flags().StringVarP(&resetWorkspace, "workspace", "w",
+		"", "reset configuration of a specific workspace"+
+			"(Kong Enterprise only).")
+	resetCmd.Flags().BoolVar(&resetAllWorkspaces, "all-workspaces",
+		false, "reset configuration of all workspaces (Kong Enterprise only).")
 	resetCmd.Flags().StringSliceVar(&dumpConfig.SelectorTags,
 		"select-tag", []string{},
 		"only entities matching tags specified via this flag are deleted.\n"+