Initial commit

2025-11-30 09:04:14 +08:00
commit 70c36b5eff
248 changed files with 47482 additions and 0 deletions
--- a/skills/cli-patterns/templates/subcommands-cli.go
+++ b/skills/cli-patterns/templates/subcommands-cli.go
@@ -0,0 +1,116 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"os"
+
+	"github.com/urfave/cli/v2"
+)
+
+func main() {
+	app := &cli.App{
+		Name:    "myapp",
+		Usage:   "A CLI tool with subcommands",
+		Version: "0.1.0",
+		Commands: []*cli.Command{
+			{
+				Name:    "start",
+				Aliases: []string{"s"},
+				Usage:   "Start the service",
+				Flags: []cli.Flag{
+					&cli.IntFlag{
+						Name:    "port",
+						Aliases: []string{"p"},
+						Value:   8080,
+						Usage:   "Port to listen on",
+						EnvVars: []string{"PORT"},
+					},
+					&cli.StringFlag{
+						Name:    "host",
+						Value:   "localhost",
+						Usage:   "Host to bind to",
+						EnvVars: []string{"HOST"},
+					},
+				},
+				Action: func(c *cli.Context) error {
+					port := c.Int("port")
+					host := c.String("host")
+					fmt.Printf("Starting service on %s:%d\n", host, port)
+					return nil
+				},
+			},
+			{
+				Name:  "stop",
+				Usage: "Stop the service",
+				Action: func(c *cli.Context) error {
+					fmt.Println("Stopping service...")
+					return nil
+				},
+			},
+			{
+				Name:  "restart",
+				Usage: "Restart the service",
+				Action: func(c *cli.Context) error {
+					fmt.Println("Restarting service...")
+					return nil
+				},
+			},
+			{
+				Name:  "status",
+				Usage: "Check service status",
+				Action: func(c *cli.Context) error {
+					fmt.Println("Service is running")
+					return nil
+				},
+			},
+			{
+				Name:  "config",
+				Usage: "Configuration management",
+				Subcommands: []*cli.Command{
+					{
+						Name:  "show",
+						Usage: "Show current configuration",
+						Action: func(c *cli.Context) error {
+							fmt.Println("Current configuration:")
+							fmt.Println("  port: 8080")
+							fmt.Println("  host: localhost")
+							return nil
+						},
+					},
+					{
+						Name:      "set",
+						Usage:     "Set configuration value",
+						ArgsUsage: "<key> <value>",
+						Action: func(c *cli.Context) error {
+							if c.NArg() < 2 {
+								return fmt.Errorf("usage: config set <key> <value>")
+							}
+							key := c.Args().Get(0)
+							value := c.Args().Get(1)
+							fmt.Printf("Setting %s = %s\n", key, value)
+							return nil
+						},
+					},
+					{
+						Name:      "get",
+						Usage:     "Get configuration value",
+						ArgsUsage: "<key>",
+						Action: func(c *cli.Context) error {
+							if c.NArg() < 1 {
+								return fmt.Errorf("usage: config get <key>")
+							}
+							key := c.Args().Get(0)
+							fmt.Printf("%s = <value>\n", key)
+							return nil
+						},
+					},
+				},
+			},
+		},
+	}
+
+	if err := app.Run(os.Args); err != nil {
+		log.Fatal(err)
+	}
+}