feat: add vin command

cmd/vin/cmd/cmd_completion.go

@@ -0,0 +1,37 @@
+package cmd
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/spf13/cobra"
+)
+
+var shell string
+
+func runCompletion(cmd *cobra.Command, args []string) error {
+	switch shell {
+	case "bash":
+		return rootCmd.GenBashCompletion(os.Stdout)
+	case "fish":
+		return rootCmd.GenFishCompletion(os.Stdout, true)
+	case "powershell":
+		return rootCmd.GenPowerShellCompletion(os.Stdout)
+	case "zsh":
+		return rootCmd.GenZshCompletion(os.Stdout)
+	}
+	return fmt.Errorf("invalid shell: %s", shell)
+}
+
+var completionCmd = &cobra.Command{
+	Use:   "completion",
+	Short: "Output shell completion (bash/fish/powershell/zsh)",
+	Long:  "Output shell completion (bash/fish/powershell/zsh).",
+	RunE:  runCompletion,
+}
+
+func init() { //nolint:gochecknoinits
+	completionCmd.Flags().StringVarP(&shell, "shell", "s", "bash", "shell type (bash/fish/powershell/zsh)")
+
+	rootCmd.AddCommand(completionCmd)
+}

cmd/vin/cmd/cmd_get.go

@@ -0,0 +1,22 @@
+package cmd
+
+import (
+	"github.com/skmatz/vin"
+	"github.com/spf13/cobra"
+)
+
+func runGet(cmd *cobra.Command, args []string) error {
+	cli := vin.NewCLI()
+	return cli.Run()
+}
+
+var getCmd = &cobra.Command{
+	Use:   "get",
+	Short: "Get applications",
+	Long:  "Get applications.",
+	RunE:  runGet,
+}
+
+func init() { //nolint:gochecknoinits
+	rootCmd.AddCommand(getCmd)
+}

cmd/vin/cmd/cmd_root.go

@@ -0,0 +1,31 @@
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+var version bool
+
+func runRoot(cmd *cobra.Command, args []string) error {
+	if version {
+		return runVersion(cmd, args)
+	}
+	return fmt.Errorf("vin requires a sub-command")
+}
+
+var rootCmd = &cobra.Command{
+	Use:   "vin",
+	Short: "Vin is a next-generation GitHub Releases installer",
+	Long:  "Vin is a next-generation GitHub Releases installer.",
+	RunE:  runRoot,
+}
+
+func init() { //nolint:gochecknoinits
+	rootCmd.Flags().BoolVarP(&version, "version", "V", false, "show version")
+}
+
+func Execute() {
+	rootCmd.Execute() //nolint:errcheck
+}

cmd/vin/cmd/cmd_version.go

@@ -0,0 +1,25 @@
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+var Version string
+
+func runVersion(cmd *cobra.Command, args []string) error {
+	fmt.Printf("v%s\n", Version)
+	return nil
+}
+
+var versionCmd = &cobra.Command{
+	Use:   "version",
+	Short: "Show version",
+	Long:  "Show version.",
+	RunE:  runVersion,
+}
+
+func init() { //nolint:gochecknoinits
+	rootCmd.AddCommand(versionCmd)
+}

cmd/vin/main.go

@@ -1,20 +1,9 @@
 package main
 
 import (
-	"fmt"
-	"os"
-
-	"github.com/skmatz/vin"
+	"github.com/skmatz/vin/cmd/vin/cmd"
 )
 
-func run() error {
-	cli := vin.NewCLI()
-	return cli.Run()
-}
-
 func main() {
-	if err := run(); err != nil {
-		fmt.Fprintln(os.Stderr, err)
-		return
-	}
+	cmd.Execute()
 }

go.mod

@@ -8,5 +8,6 @@ require (
 	github.com/google/go-github v17.0.0+incompatible
 	github.com/google/go-querystring v1.0.0 // indirect
 	github.com/mholt/archiver/v3 v3.5.0
+	github.com/spf13/cobra v1.1.1
 	golang.org/x/oauth2 v0.0.0-20201109201403-9fd604954f58
 )