cli: Add empty neofs-cli app structure

In the following release `neofs-cli` will be used to directly manage NeoFS Node.
All required definitions and interfaces are also moving from `neofs-api` to
`neofs-node` repository, so it's more convinient to have `neofs-cli` here.

Signed-off-by: Stanislav Bogatyrev <stanislav@nspcc.ru>

cmd/neofs-cli/modules/accounting.go

@@ -0,0 +1,31 @@
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+// accountingCmd represents the accounting command
+var accountingCmd = &cobra.Command{
+	Use:   "accounting",
+	Short: "Operations with accounts and balances",
+	Long:  `Operations with accounts and balances`,
+	Run: func(cmd *cobra.Command, args []string) {
+		fmt.Println("accounting called")
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(accountingCmd)
+
+	// Here you will define your flags and configuration settings.
+
+	// Cobra supports Persistent Flags which will work for this command
+	// and all subcommands, e.g.:
+	// accountingCmd.PersistentFlags().String("foo", "", "A help for foo")
+
+	// Cobra supports local flags which will only run when this command
+	// is called directly, e.g.:
+	// accountingCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
+}

cmd/neofs-cli/modules/acl.go

@@ -0,0 +1,31 @@
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+// aclCmd represents the acl command
+var aclCmd = &cobra.Command{
+	Use:   "acl",
+	Short: "Operations with Access Control Lists",
+	Long:  `Operations with Access Control Lists`,
+	Run: func(cmd *cobra.Command, args []string) {
+		fmt.Println("acl called")
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(aclCmd)
+
+	// Here you will define your flags and configuration settings.
+
+	// Cobra supports Persistent Flags which will work for this command
+	// and all subcommands, e.g.:
+	// aclCmd.PersistentFlags().String("foo", "", "A help for foo")
+
+	// Cobra supports local flags which will only run when this command
+	// is called directly, e.g.:
+	// aclCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
+}

cmd/neofs-cli/modules/completion.go

@@ -0,0 +1,62 @@
+package cmd
+
+import (
+	"os"
+
+	"github.com/spf13/cobra"
+)
+
+var completionCmd = &cobra.Command{
+	Use:   "completion [bash|zsh|fish|powershell]",
+	Short: "Generate completion script",
+	Long: `To load completions:
+
+Bash:
+
+$ source <(neofs-cli completion bash)
+
+# To load completions for each session, execute once:
+Linux:
+  $ neofs-cli completion bash > /etc/bash_completion.d/neofs-cli
+MacOS:
+  $ neofs-cli completion bash > /usr/local/etc/bash_completion.d/neofs-cli
+
+Zsh:
+
+# If shell completion is not already enabled in your environment you will need
+# to enable it.  You can execute the following once:
+
+$ echo "autoload -U compinit; compinit" >> ~/.zshrc
+
+# To load completions for each session, execute once:
+$ neofs-cli completion zsh > "${fpath[1]}/_neofs-cli"
+
+# You will need to start a new shell for this setup to take effect.
+
+Fish:
+
+$ neofs-cli completion fish | source
+
+# To load completions for each session, execute once:
+$ neofs-cli completion fish > ~/.config/fish/completions/neofs-cli.fish
+`,
+	DisableFlagsInUseLine: true,
+	ValidArgs:             []string{"bash", "zsh", "fish", "powershell"},
+	Args:                  cobra.ExactValidArgs(1),
+	Run: func(cmd *cobra.Command, args []string) {
+		switch args[0] {
+		case "bash":
+			_ = cmd.Root().GenBashCompletion(os.Stdout)
+		case "zsh":
+			_ = cmd.Root().GenZshCompletion(os.Stdout)
+		case "fish":
+			_ = cmd.Root().GenFishCompletion(os.Stdout, true)
+		case "powershell":
+			_ = cmd.Root().GenPowerShellCompletion(os.Stdout)
+		}
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(completionCmd)
+}

cmd/neofs-cli/modules/container.go

@@ -0,0 +1,31 @@
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+// containerCmd represents the container command
+var containerCmd = &cobra.Command{
+	Use:   "container",
+	Short: "Operations with Containers",
+	Long:  `Operations with Containers`,
+	Run: func(cmd *cobra.Command, args []string) {
+		fmt.Println("container called")
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(containerCmd)
+
+	// Here you will define your flags and configuration settings.
+
+	// Cobra supports Persistent Flags which will work for this command
+	// and all subcommands, e.g.:
+	// containerCmd.PersistentFlags().String("foo", "", "A help for foo")
+
+	// Cobra supports local flags which will only run when this command
+	// is called directly, e.g.:
+	// containerCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
+}

cmd/neofs-cli/modules/netmap.go

@@ -0,0 +1,31 @@
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+// netmapCmd represents the netmap command
+var netmapCmd = &cobra.Command{
+	Use:   "netmap",
+	Short: "Operations with Network Map",
+	Long:  `Operations with Network Map`,
+	Run: func(cmd *cobra.Command, args []string) {
+		fmt.Println("netmap called")
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(netmapCmd)
+
+	// Here you will define your flags and configuration settings.
+
+	// Cobra supports Persistent Flags which will work for this command
+	// and all subcommands, e.g.:
+	// netmapCmd.PersistentFlags().String("foo", "", "A help for foo")
+
+	// Cobra supports local flags which will only run when this command
+	// is called directly, e.g.:
+	// netmapCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
+}

cmd/neofs-cli/modules/object.go

@@ -0,0 +1,31 @@
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+// objectCmd represents the object command
+var objectCmd = &cobra.Command{
+	Use:   "object",
+	Short: "Operations with Objects",
+	Long:  `Operations with Objects`,
+	Run: func(cmd *cobra.Command, args []string) {
+		fmt.Println("object called")
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(objectCmd)
+
+	// Here you will define your flags and configuration settings.
+
+	// Cobra supports Persistent Flags which will work for this command
+	// and all subcommands, e.g.:
+	// objectCmd.PersistentFlags().String("foo", "", "A help for foo")
+
+	// Cobra supports local flags which will only run when this command
+	// is called directly, e.g.:
+	// objectCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
+}

cmd/neofs-cli/modules/root.go

@@ -0,0 +1,74 @@
+package cmd
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/spf13/cobra"
+
+	homedir "github.com/mitchellh/go-homedir"
+	"github.com/spf13/viper"
+)
+
+var cfgFile string
+
+// rootCmd represents the base command when called without any subcommands
+var rootCmd = &cobra.Command{
+	Use:   "neofs-cli",
+	Short: "Command Line Tool to work with NeoFS",
+	Long: `NeoFS CLI provides all basic interactions with NeoFS and it's services.
+
+It contains commands for interaction with NeoFS nodes using different versions
+of neofs-api and some useful utilities for compiling ACL rules from JSON
+notation, managing container access through protocol gates, querying network map
+and much more!`,
+}
+
+// Execute adds all child commands to the root command and sets flags appropriately.
+// This is called by main.main(). It only needs to happen once to the rootCmd.
+func Execute() {
+	if err := rootCmd.Execute(); err != nil {
+		fmt.Println(err)
+		os.Exit(1)
+	}
+}
+
+func init() {
+	cobra.OnInitialize(initConfig)
+
+	// Here you will define your flags and configuration settings.
+	// Cobra supports persistent flags, which, if defined here,
+	// will be global for your application.
+
+	rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.config/neofs-cli/config.yaml)")
+
+	// Cobra also supports local flags, which will only run
+	// when this action is called directly.
+	// rootCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
+}
+
+// initConfig reads in config file and ENV variables if set.
+func initConfig() {
+	if cfgFile != "" {
+		// Use config file from the flag.
+		viper.SetConfigFile(cfgFile)
+	} else {
+		// Find home directory.
+		home, err := homedir.Dir()
+		if err != nil {
+			fmt.Println(err)
+			os.Exit(1)
+		}
+
+		// Search config in home directory with name ".main" (without extension).
+		viper.AddConfigPath(home)
+		viper.SetConfigName(".config/neofs-cli")
+	}
+
+	viper.AutomaticEnv() // read in environment variables that match
+
+	// If a config file is found, read it in.
+	if err := viper.ReadInConfig(); err == nil {
+		fmt.Println("Using config file:", viper.ConfigFileUsed())
+	}
+}

cmd/neofs-cli/modules/storagegroup.go

@@ -0,0 +1,31 @@
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+// storagegroupCmd represents the storagegroup command
+var storagegroupCmd = &cobra.Command{
+	Use:   "storagegroup",
+	Short: "Operations with Storage Groups",
+	Long:  `Operations with Storage Groups`,
+	Run: func(cmd *cobra.Command, args []string) {
+		fmt.Println("storagegroup called")
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(storagegroupCmd)
+
+	// Here you will define your flags and configuration settings.
+
+	// Cobra supports Persistent Flags which will work for this command
+	// and all subcommands, e.g.:
+	// storagegroupCmd.PersistentFlags().String("foo", "", "A help for foo")
+
+	// Cobra supports local flags which will only run when this command
+	// is called directly, e.g.:
+	// storagegroupCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
+}

cmd/neofs-cli/modules/version.go

@@ -0,0 +1,47 @@
+package cmd
+
+import (
+	"encoding/json"
+	"fmt"
+	"github.com/nspcc-dev/neofs-node/misc"
+
+	"github.com/spf13/cobra"
+)
+
+var (
+	// versionCmd represents the version command
+	versionCmd = &cobra.Command{
+		Use:   "version",
+		Short: "Print version and exit",
+		Run:   versionRun,
+	}
+)
+
+var flagJSON bool
+
+type VersionInfo struct {
+	Version string `json:"Version,omitempty"`
+	Build   string `json:"Build,omitempty"`
+	Debug   string `json:"Debug,omitempty"`
+}
+
+func init() {
+	rootCmd.AddCommand(versionCmd)
+	versionCmd.Flags().BoolVarP(&flagJSON, "json", "j", false, "Print version information in JSON")
+}
+
+func versionRun(cmd *cobra.Command, args []string) {
+
+	versionInfo := VersionInfo{Version: misc.Version, Build: misc.Build, Debug: misc.Debug}
+
+	if flagJSON {
+		bytes, _ := json.Marshal(versionInfo)
+		fmt.Printf("%s", string(bytes)+"\n")
+		return
+	}
+
+	fmt.Printf("Version: %s \nBuild: %s \nDebug: %s\n",
+		versionInfo.Version,
+		versionInfo.Build,
+		versionInfo.Debug)
+}