Initial commit
This commit is contained in:
Zhongwei Li
213
skills/commander-patterns/templates/option-class-advanced.ts
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213
skills/commander-patterns/templates/option-class-advanced.ts
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import { Command, Option } from 'commander';
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import chalk from 'chalk';
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const program = new Command();
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program
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.name('mycli')
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.description('Advanced Option class usage')
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.version('1.0.0');
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program
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.command('deploy')
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.description('Deploy with advanced option patterns')
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// Option with choices
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.addOption(
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new Option('-e, --env <environment>', 'deployment environment')
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.choices(['dev', 'staging', 'prod'])
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.default('dev')
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)
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// Option with custom parser and validation
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.addOption(
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new Option('-p, --port <port>', 'server port')
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.argParser((value) => {
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const port = parseInt(value, 10);
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if (isNaN(port) || port < 1 || port > 65535) {
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throw new Error('Port must be between 1 and 65535');
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}
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return port;
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})
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.default(3000)
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)
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// Mandatory option
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.addOption(
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new Option('-t, --token <token>', 'API authentication token')
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.makeOptionMandatory()
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.env('API_TOKEN')
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)
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// Option from environment variable
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.addOption(
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new Option('-u, --api-url <url>', 'API base URL')
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.env('API_URL')
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.default('https://api.example.com')
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)
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// Conflicting options
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.addOption(
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new Option('--use-cache', 'enable caching')
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.conflicts('noCache')
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)
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.addOption(
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new Option('--no-cache', 'disable caching')
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.conflicts('useCache')
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)
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// Implies relationship
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.addOption(
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new Option('--ssl', 'enable SSL')
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.implies({ sslVerify: true })
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)
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.addOption(
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new Option('--ssl-verify', 'verify SSL certificates')
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)
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// Preset configurations
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.addOption(
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new Option('--preset <preset>', 'use preset configuration')
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.choices(['minimal', 'standard', 'complete'])
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.argParser((value) => {
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const presets = {
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minimal: { replicas: 1, timeout: 30 },
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standard: { replicas: 3, timeout: 60 },
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complete: { replicas: 5, timeout: 120 },
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};
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return presets[value as keyof typeof presets];
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})
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)
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// Hidden option (for debugging)
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.addOption(
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new Option('--debug', 'enable debug mode')
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.hideHelp()
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)
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// Custom option processing
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.addOption(
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new Option('-r, --replicas <count>', 'number of replicas')
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.argParser((value, previous) => {
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const count = parseInt(value, 10);
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if (count < 1) {
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throw new Error('Replicas must be at least 1');
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}
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return count;
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})
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.default(3)
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)
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.action((options) => {
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console.log(chalk.blue('Deployment configuration:'));
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console.log('Environment:', chalk.yellow(options.env));
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console.log('Port:', options.port);
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console.log('Token:', options.token ? chalk.green('***set***') : chalk.red('not set'));
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console.log('API URL:', options.apiUrl);
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console.log('Cache:', options.useCache ? 'enabled' : 'disabled');
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console.log('SSL:', options.ssl ? 'enabled' : 'disabled');
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console.log('SSL Verify:', options.sslVerify ? 'enabled' : 'disabled');
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if (options.preset) {
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console.log('Preset configuration:', options.preset);
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}
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console.log('Replicas:', options.replicas);
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if (options.debug) {
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console.log(chalk.gray('\nDebug mode enabled'));
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console.log(chalk.gray('All options:'), options);
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}
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console.log(chalk.green('\n✓ Deployment configuration validated'));
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});
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// Command demonstrating option dependencies
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program
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.command('backup')
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.description('Backup data with option dependencies')
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.addOption(
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new Option('-m, --method <method>', 'backup method')
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.choices(['full', 'incremental', 'differential'])
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.makeOptionMandatory()
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)
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.addOption(
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new Option('--base-backup <path>', 'base backup for incremental')
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.conflicts('full')
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)
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.addOption(
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new Option('--compression <level>', 'compression level')
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.choices(['none', 'low', 'medium', 'high'])
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.default('medium')
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)
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.action((options) => {
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if (options.method === 'incremental' && !options.baseBackup) {
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console.log(chalk.red('Error: --base-backup required for incremental backup'));
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process.exit(1);
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}
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console.log(chalk.blue(`Running ${options.method} backup...`));
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console.log('Compression:', options.compression);
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if (options.baseBackup) {
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console.log('Base backup:', options.baseBackup);
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}
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console.log(chalk.green('✓ Backup complete'));
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});
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// Command with complex validation
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program
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.command('scale')
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.description('Scale application with complex validation')
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.addOption(
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new Option('-r, --replicas <count>', 'number of replicas')
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.argParser((value) => {
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const count = parseInt(value, 10);
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if (isNaN(count)) {
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throw new Error('Replicas must be a number');
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}
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if (count < 1 || count > 100) {
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throw new Error('Replicas must be between 1 and 100');
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}
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return count;
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})
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.makeOptionMandatory()
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)
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.addOption(
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new Option('--cpu <value>', 'CPU limit (millicores)')
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.argParser((value) => {
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const cpu = parseInt(value, 10);
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if (cpu < 100 || cpu > 8000) {
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throw new Error('CPU must be between 100 and 8000 millicores');
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}
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return cpu;
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})
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.default(1000)
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)
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.addOption(
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new Option('--memory <value>', 'Memory limit (MB)')
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.argParser((value) => {
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const mem = parseInt(value, 10);
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if (mem < 128 || mem > 16384) {
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throw new Error('Memory must be between 128 and 16384 MB');
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}
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return mem;
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})
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.default(512)
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)
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.action((options) => {
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console.log(chalk.blue('Scaling application:'));
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console.log('Replicas:', chalk.yellow(options.replicas));
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console.log('CPU:', `${options.cpu}m`);
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console.log('Memory:', `${options.memory}MB`);
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const totalCpu = options.replicas * options.cpu;
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const totalMemory = options.replicas * options.memory;
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console.log(chalk.gray('\nTotal resources:'));
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console.log(chalk.gray(`CPU: ${totalCpu}m`));
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console.log(chalk.gray(`Memory: ${totalMemory}MB`));
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console.log(chalk.green('\n✓ Scaling complete'));
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});
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program.parse();
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