Initial commit
This commit is contained in:
Zhongwei Li
313
skills/cli-patterns/scripts/generate-full.sh
Executable file
313
skills/cli-patterns/scripts/generate-full.sh
Executable file
@@ -0,0 +1,313 @@
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#!/bin/bash
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# Generate complete CLI with all patterns
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set -euo pipefail
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APP_NAME="${1:-myapp}"
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echo "Generating full-featured CLI: $APP_NAME"
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# Create project structure
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mkdir -p "$APP_NAME"
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cd "$APP_NAME"
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# Initialize Go module
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go mod init "$APP_NAME" 2>/dev/null || true
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# Install dependencies
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echo "Installing dependencies..."
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go get github.com/urfave/cli/v2@latest
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# Create main.go with all patterns
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cat > main.go <<'EOF'
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package main
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import (
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"fmt"
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"log"
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"os"
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"github.com/urfave/cli/v2"
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)
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// AppContext holds shared state
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type AppContext struct {
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Verbose bool
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Config string
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}
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func main() {
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app := &cli.App{
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Name: "APP_NAME_PLACEHOLDER",
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Usage: "A full-featured CLI tool with all patterns",
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Version: "0.1.0",
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// Global flags available to all commands
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Flags: []cli.Flag{
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&cli.BoolFlag{
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Name: "verbose",
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Aliases: []string{"v"},
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Usage: "Enable verbose output",
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EnvVars: []string{"VERBOSE"},
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},
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&cli.StringFlag{
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Name: "config",
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Aliases: []string{"c"},
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Usage: "Path to config file",
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EnvVars: []string{"CONFIG_PATH"},
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Value: "config.yaml",
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},
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},
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// Before hook - runs before any command
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Before: func(c *cli.Context) error {
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verbose := c.Bool("verbose")
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config := c.String("config")
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if verbose {
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fmt.Println("🚀 Initializing application...")
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}
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// Store context for use in commands
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ctx := &AppContext{
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Verbose: verbose,
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Config: config,
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}
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c.App.Metadata["ctx"] = ctx
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return nil
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},
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// After hook - runs after any command
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After: func(c *cli.Context) error {
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if ctx, ok := c.App.Metadata["ctx"].(*AppContext); ok {
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if ctx.Verbose {
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fmt.Println("✅ Application finished successfully")
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}
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}
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return nil
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},
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// Commands organized by category
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Commands: []*cli.Command{
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{
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Name: "build",
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Category: "Build",
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Usage: "Build the project",
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Flags: []cli.Flag{
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&cli.StringFlag{
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Name: "output",
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Aliases: []string{"o"},
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Usage: "Output file path",
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Value: "dist/app",
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},
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&cli.BoolFlag{
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Name: "optimize",
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Usage: "Enable optimizations",
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Value: true,
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},
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},
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Before: func(c *cli.Context) error {
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fmt.Println("Preparing build...")
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return nil
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},
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Action: func(c *cli.Context) error {
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output := c.String("output")
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optimize := c.Bool("optimize")
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fmt.Printf("Building to: %s\n", output)
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if optimize {
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fmt.Println("Optimizations: enabled")
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}
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return nil
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},
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After: func(c *cli.Context) error {
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fmt.Println("Build complete!")
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return nil
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},
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},
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{
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Name: "test",
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Category: "Build",
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Usage: "Run tests",
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Flags: []cli.Flag{
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&cli.BoolFlag{
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Name: "coverage",
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Aliases: []string{"cov"},
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Usage: "Generate coverage report",
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},
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},
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Action: func(c *cli.Context) error {
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coverage := c.Bool("coverage")
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fmt.Println("Running tests...")
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if coverage {
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fmt.Println("Generating coverage report...")
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}
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return nil
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},
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},
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{
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Name: "deploy",
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Category: "Deploy",
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Usage: "Deploy the application",
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Flags: []cli.Flag{
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&cli.StringFlag{
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Name: "env",
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Aliases: []string{"e"},
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Usage: "Target environment",
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Required: true,
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Value: "staging",
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},
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},
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Action: func(c *cli.Context) error {
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env := c.String("env")
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fmt.Printf("Deploying to %s...\n", env)
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return nil
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},
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},
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{
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Name: "rollback",
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Category: "Deploy",
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Usage: "Rollback deployment",
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Action: func(c *cli.Context) error {
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fmt.Println("Rolling back deployment...")
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return nil
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},
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},
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{
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Name: "logs",
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Category: "Monitor",
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Usage: "View application logs",
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Flags: []cli.Flag{
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&cli.IntFlag{
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Name: "tail",
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Aliases: []string{"n"},
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Usage: "Number of lines to show",
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Value: 100,
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},
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&cli.BoolFlag{
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Name: "follow",
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Aliases: []string{"f"},
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Usage: "Follow log output",
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},
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},
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Action: func(c *cli.Context) error {
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tail := c.Int("tail")
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follow := c.Bool("follow")
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fmt.Printf("Showing last %d lines...\n", tail)
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if follow {
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fmt.Println("Following logs...")
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}
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return nil
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},
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},
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{
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Name: "status",
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Category: "Monitor",
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Usage: "Check application status",
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Action: func(c *cli.Context) error {
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fmt.Println("Application status: healthy")
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return nil
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},
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},
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},
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}
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if err := app.Run(os.Args); err != nil {
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log.Fatal(err)
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}
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}
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EOF
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# Replace placeholder
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sed -i "s/APP_NAME_PLACEHOLDER/$APP_NAME/g" main.go
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# Create comprehensive README
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cat > README.md <<EOF
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# $APP_NAME
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A full-featured CLI tool demonstrating all urfave/cli patterns.
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## Features
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- ✅ Global flags with environment variable fallbacks
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- ✅ Command categories for organization
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- ✅ Before/After hooks for lifecycle management
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- ✅ Context management for shared state
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- ✅ Comprehensive flag types
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- ✅ Subcommands and aliases
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- ✅ Help text and documentation
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## Installation
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\`\`\`bash
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go install
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\`\`\`
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## Usage
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### Build Commands
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\`\`\`bash
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$APP_NAME build
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$APP_NAME build --output dist/myapp --optimize
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$APP_NAME test --coverage
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\`\`\`
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### Deploy Commands
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\`\`\`bash
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$APP_NAME deploy --env staging
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$APP_NAME deploy -e production
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$APP_NAME rollback
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\`\`\`
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### Monitor Commands
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\`\`\`bash
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$APP_NAME logs
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$APP_NAME logs --tail 50 --follow
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$APP_NAME status
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\`\`\`
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### Global Flags
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\`\`\`bash
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$APP_NAME --verbose build
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$APP_NAME --config custom.yaml deploy --env prod
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\`\`\`
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## Environment Variables
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- \`VERBOSE\`: Enable verbose output
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- \`CONFIG_PATH\`: Path to config file
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## Examples
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\`\`\`bash
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# Build with optimizations
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$APP_NAME -v build -o dist/app --optimize
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# Deploy to production
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$APP_NAME --config prod.yaml deploy -e production
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# Follow logs
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$APP_NAME logs -f -n 200
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\`\`\`
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EOF
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# Build
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echo "Building..."
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go build -o "$APP_NAME" .
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echo "✅ Full-featured CLI generated successfully!"
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echo ""
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echo "Try these commands:"
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echo " ./$APP_NAME --help"
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echo " ./$APP_NAME build --help"
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echo " ./$APP_NAME -v build"
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