add: cobra demo

go/cobra-demo/cmd/root.go

@@ -0,0 +1,27 @@
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+var Verbose bool
+
+// Root command is my app
+var rootCmd = &cobra.Command{
+	Use:   "hugo",
+	Short: "Hugo is a static site generator",
+	Long:  "Hugo is a fantastic and fast static site generator",
+	Run: func(cmd *cobra.Command, args []string) {
+		fmt.Println("Running hugo")
+		fmt.Println("your args ", args)
+		fmt.Printf("Verbose: %v\n", Verbose)
+	},
+	TraverseChildren: true,
+}
+
+func Execute() {
+	rootCmd.PersistentFlags().BoolVarP(&Verbose, "verbose", "v", false, "verbose output")
+	rootCmd.Execute()
+}

go/cobra-demo/cmd/version.go

@@ -0,0 +1,19 @@
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+var versionCmd = &cobra.Command{
+	Use:   "version",
+	Short: "Display version",
+	Run: func(cmd *cobra.Command, args []string) {
+		fmt.Println("Version v0.1")
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(versionCmd)
+}

go/cobra-demo/go.mod

@@ -0,0 +1,9 @@
+module cobra-demo
+
+go 1.22.5
+
+require (
+	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/spf13/cobra v1.8.1 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+)

go/cobra-demo/go.sum

@@ -0,0 +1,10 @@
+github.com/cpuguy83/go-md2man/v2 v2.0.4/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
+github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
+github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
+github.com/spf13/cobra v1.8.1 h1:e5/vxKd/rZsfSJMUX1agtjeTDf+qv1/JdBF8gg5k9ZM=
+github.com/spf13/cobra v1.8.1/go.mod h1:wHxEcudfqmLYa8iTfL+OuZPbBZkmvliBWKIezN3kD9Y=
+github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
+github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

go/cobra-demo/main.go

@@ -0,0 +1,7 @@
+package main
+
+import "cobra-demo/cmd"
+
+func main() {
+	cmd.Execute()
+}