Simplify CLI commands by saving rpc-addr and project to context

cmd/yorkie/commands.go

@@ -18,11 +18,14 @@
 package main
 
 import (
+	"log"
 	"os"
+	"path"
 
 	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
 
-	"github.com/yorkie-team/yorkie/cmd/yorkie/config"
+	"github.com/yorkie-team/yorkie/cmd/yorkie/context"
 	"github.com/yorkie-team/yorkie/cmd/yorkie/document"
 	"github.com/yorkie-team/yorkie/cmd/yorkie/project"
 )
@@ -46,8 +49,17 @@ func init() {
 	rootCmd.SetErr(os.Stderr)
 	rootCmd.AddCommand(project.SubCmd)
 	rootCmd.AddCommand(document.SubCmd)
-	// TODO(chacha912): set rpcAddr from env using viper.
-	// https://github.com/spf13/cobra/blob/main/user_guide.md#bind-flags-with-config
-	rootCmd.PersistentFlags().StringVar(&config.RPCAddr, "rpc-addr", "localhost:11101", "Address of the rpc server")
-	rootCmd.PersistentFlags().BoolVar(&config.IsInsecure, "insecure", false, "Skip the TLS connection of the client")
+	rootCmd.AddCommand(context.SubCmd)
+	viper.SetConfigName("config")
+	viper.SetConfigType("json")
+	viper.AddConfigPath(path.Join(os.Getenv("HOME"), ".yorkie"))
+
+	rootCmd.PersistentFlags().String("rpc-addr", "localhost:11101", "Address of the rpc server")
+	rootCmd.PersistentFlags().Bool("insecure", false, "Skip the TLS connection of the client")
+	if err := viper.BindPFlag("rpcAddr", rootCmd.PersistentFlags().Lookup("rpc-addr")); err != nil {
+		log.Fatalf("Failed to bind rpcAddr flag: %v", err)
+	}
+	if err := viper.BindPFlag("isInsecure", rootCmd.PersistentFlags().Lookup("insecure")); err != nil {
+		log.Fatalf("Failed to bind isInsecure flag: %v", err)
+	}
 }

cmd/yorkie/config/config.go

@@ -23,6 +23,9 @@ import (
 	"os"
 	"path"
 	"path/filepath"
+
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
 )
 
 var (
@@ -54,6 +57,10 @@ func configPath() (string, error) {
 type Config struct {
 	// Auths is the map of the address and the token.
 	Auths map[string]string `json:"auths"`
+	// RPCAddr is the address of the rpc server
+	RPCAddr string `json:"rpcAddr"`
+	// IsInsecure specifies whether to skip the TLS connection of the client
+	IsInsecure bool `json:"isInsecure"`
 }
 
 // New creates a new configuration.
@@ -137,3 +144,29 @@ func Delete() error {
 
 	return nil
 }
+
+// ReadConfig read configuration file for viper before runnning command
+func ReadConfig(cmd *cobra.Command, args []string) error {
+	configPathValue, err := configPath()
+	if err != nil {
+		fmt.Fprintln(os.Stderr, "get config path: %w", err)
+		os.Exit(1)
+	}
+
+	file, err := os.Open(filepath.Clean(configPathValue))
+	if err != nil {
+		if os.IsNotExist(err) {
+			New()
+			return nil
+		}
+
+		return fmt.Errorf("open config file: %w", err)
+	}
+	defer func() {
+		_ = file.Close()
+	}()
+	if err := viper.ReadInConfig(); err != nil {
+		return fmt.Errorf("failed to read in config: %w", err)
+	}
+	return nil
+}

cmd/yorkie/context/context.go

@@ -0,0 +1,30 @@
+/*
+ * Copyright 2022 The Yorkie Authors. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Package context provides the context(configuration) command.
+package context
+
+import (
+	"github.com/spf13/cobra"
+)
+
+var (
+	// SubCmd represents the document command
+	SubCmd = &cobra.Command{
+		Use:   "context",
+		Short: "Manage contexts",
+	}
+)

cmd/yorkie/context/list.go

@@ -0,0 +1,58 @@
+/*
+ * Copyright 2022 The Yorkie Authors. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package context
+
+import (
+	"fmt"
+
+	"github.com/jedib0t/go-pretty/v6/table"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+
+	"github.com/yorkie-team/yorkie/cmd/yorkie/config"
+)
+
+func newListCommand() *cobra.Command {
+	return &cobra.Command{
+		Use:     "ls",
+		Short:   "List all contexts from configuration",
+		PreRunE: config.ReadConfig,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			conf, err := config.Load()
+			if err != nil {
+				return err
+			}
+
+			fmt.Println("Current Context:")
+			fmt.Printf("  rpcAddr: %s\n  isInsecure: %v\n", viper.GetString("rpcAddr"), viper.GetBool("isInsecure"))
+
+			fmt.Println("All Auth Contexts:")
+			tw := table.NewWriter()
+			tw.AppendHeader(table.Row{"RpcAddr", "Token"})
+			for addr, auth := range conf.Auths {
+				tw.AppendRow(table.Row{addr, auth})
+			}
+			fmt.Println(tw.Render())
+
+			return nil
+		},
+	}
+}
+
+func init() {
+	SubCmd.AddCommand(newListCommand())
+}

cmd/yorkie/context/remove.go

@@ -0,0 +1,62 @@
+/*
+ * Copyright 2022 The Yorkie Authors. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package context
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+
+	"github.com/yorkie-team/yorkie/cmd/yorkie/config"
+)
+
+func newRemoveCmd() *cobra.Command {
+	return &cobra.Command{
+		Use:     "remove [rpcAddr]",
+		Short:   "Remove the context for the specified rpcAddr",
+		Args:    cobra.ExactArgs(1),
+		PreRunE: config.ReadConfig,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			conf, err := config.Load()
+			if err != nil {
+				return err
+			}
+
+			rpcAddr := args[0]
+
+			// Check if auth exists for the rpcAddr
+			if _, ok := conf.Auths[rpcAddr]; !ok {
+				return fmt.Errorf("no context exists for the rpcAddr: %s", rpcAddr)
+			}
+
+			// Delete the context for the rpcAddr
+			delete(conf.Auths, rpcAddr)
+
+			err = config.Save(conf)
+			if err != nil {
+				return err
+			}
+
+			fmt.Printf("Context for rpcAddr: %s has been removed.\n", rpcAddr)
+			return nil
+		},
+	}
+}
+
+func init() {
+	SubCmd.AddCommand(newRemoveCmd())
+}

cmd/yorkie/context/set.go

@@ -0,0 +1,62 @@
+/*
+ * Copyright 2022 The Yorkie Authors. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package context
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+
+	"github.com/yorkie-team/yorkie/cmd/yorkie/config"
+)
+
+func newSetContextCmd() *cobra.Command {
+	return &cobra.Command{
+		Use:     "set",
+		Short:   "Set the current global flags as the context",
+		PreRunE: config.ReadConfig,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			conf, err := config.Load()
+			if err != nil {
+				return err
+			}
+
+			rpcAddr := viper.GetString("rpcAddr")
+			conf.RPCAddr = rpcAddr
+			conf.IsInsecure = viper.GetBool("isInsecure")
+
+			// check if auth exists for the rpcAddr
+			if _, ok := conf.Auths[rpcAddr]; !ok {
+				conf.Auths[rpcAddr] = ""
+				fmt.Println("A new RPC address has been set. Please log in again.")
+			}
+
+			err = config.Save(conf)
+			if err != nil {
+				return err
+			}
+
+			fmt.Println("Context has been updated.")
+			return nil
+		},
+	}
+}
+
+func init() {
+	SubCmd.AddCommand(newSetContextCmd())
+}

cmd/yorkie/document/list.go

@@ -23,6 +23,7 @@ import (
 
 	"github.com/jedib0t/go-pretty/v6/table"
 	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
 
 	"github.com/yorkie-team/yorkie/admin"
 	"github.com/yorkie-team/yorkie/cmd/yorkie/config"
@@ -37,19 +38,23 @@ var (
 
 func newListCommand() *cobra.Command {
 	return &cobra.Command{
-		Use:   "ls [project name]",
-		Short: "List all documents in the project",
+		Use:     "ls [project name]",
+		Short:   "List all documents in the project",
+		PreRunE: config.ReadConfig,
 		RunE: func(cmd *cobra.Command, args []string) error {
 			if len(args) != 1 {
 				return errors.New("project is required")
 			}
 			projectName := args[0]
 
-			token, err := config.LoadToken(config.RPCAddr)
+			rpcAddr := viper.GetString("rpcAddr")
+			token, err := config.LoadToken(rpcAddr)
 			if err != nil {
 				return err
 			}
-			cli, err := admin.Dial(config.RPCAddr, admin.WithToken(token), admin.WithInsecure(config.IsInsecure))
+
+			cli, err := admin.Dial(rpcAddr, admin.WithToken(token), admin.WithInsecure(viper.GetBool("isInsecure")))
+
 			if err != nil {
 				return err
 			}

cmd/yorkie/document/remove.go

@@ -21,6 +21,7 @@ import (
 	"errors"
 
 	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
 
 	"github.com/yorkie-team/yorkie/admin"
 	"github.com/yorkie-team/yorkie/cmd/yorkie/config"
@@ -35,18 +36,20 @@ func newRemoveCommand() *cobra.Command {
 		Use:     "remove [project name] [document key]",
 		Short:   "Remove documents in the project",
 		Example: "yorkie document remove sample-project sample-document [options]",
+		PreRunE: config.ReadConfig,
 		RunE: func(cmd *cobra.Command, args []string) error {
 			if len(args) != 2 {
 				return errors.New("project name and document key are required")
 			}
 			projectName := args[0]
 			documentKey := args[1]
 
-			token, err := config.LoadToken(config.RPCAddr)
+			rpcAddr := viper.GetString("rpcAddr")
+			token, err := config.LoadToken(rpcAddr)
 			if err != nil {
 				return err
 			}
-			cli, err := admin.Dial(config.RPCAddr, admin.WithToken(token), admin.WithInsecure(config.IsInsecure))
+			cli, err := admin.Dial(rpcAddr, admin.WithToken(token), admin.WithInsecure(viper.GetBool("isInsecure")))
 			if err != nil {
 				return err
 			}