Initial commit

skills/yargs-patterns/templates/advanced-cli.js

@@ -0,0 +1,99 @@
+#!/usr/bin/env node
+const yargs = require('yargs/yargs');
+const { hideBin } = require('yargs/helpers');
+
+yargs(hideBin(process.argv))
+  .command('deploy <service>', 'deploy a service', (yargs) => {
+    yargs
+      .positional('service', {
+        describe: 'Service name to deploy',
+        type: 'string'
+      })
+      .option('environment', {
+        alias: 'env',
+        describe: 'Deployment environment',
+        choices: ['development', 'staging', 'production'],
+        demandOption: true
+      })
+      .option('version', {
+        alias: 'v',
+        describe: 'Version to deploy',
+        type: 'string',
+        coerce: (arg) => {
+          if (!/^\d+\.\d+\.\d+$/.test(arg)) {
+            throw new Error('Version must be in format X.Y.Z');
+          }
+          return arg;
+        }
+      })
+      .option('replicas', {
+        alias: 'r',
+        describe: 'Number of replicas',
+        type: 'number',
+        default: 1
+      })
+      .option('force', {
+        alias: 'f',
+        describe: 'Force deployment without confirmation',
+        type: 'boolean',
+        default: false
+      })
+      .check((argv) => {
+        if (argv.replicas > 10 && argv.environment === 'development') {
+          throw new Error('Cannot deploy more than 10 replicas in development');
+        }
+        if (argv.environment === 'production' && !argv.version) {
+          throw new Error('Version is required for production deployments');
+        }
+        return true;
+      });
+  }, (argv) => {
+    console.log(`Deploying ${argv.service} v${argv.version || 'latest'}`);
+    console.log(`Environment: ${argv.environment}`);
+    console.log(`Replicas: ${argv.replicas}`);
+
+    if (!argv.force) {
+      console.log('Use --force to proceed without confirmation');
+    }
+  })
+  .command('rollback <service>', 'rollback a service', (yargs) => {
+    yargs
+      .positional('service', {
+        describe: 'Service name to rollback',
+        type: 'string'
+      })
+      .option('environment', {
+        alias: 'env',
+        describe: 'Deployment environment',
+        choices: ['development', 'staging', 'production'],
+        demandOption: true
+      })
+      .option('version', {
+        alias: 'v',
+        describe: 'Version to rollback to',
+        type: 'string'
+      });
+  }, (argv) => {
+    console.log(`Rolling back ${argv.service} in ${argv.environment}`);
+    if (argv.version) {
+      console.log(`Target version: ${argv.version}`);
+    }
+  })
+  .middleware((argv) => {
+    // Logging middleware
+    if (argv.verbose) {
+      console.log('[DEBUG] Arguments:', argv);
+    }
+  })
+  .option('verbose', {
+    describe: 'Enable verbose logging',
+    type: 'boolean',
+    global: true  // Available to all commands
+  })
+  .demandCommand(1, 'You need at least one command')
+  .strict()
+  .help()
+  .alias('help', 'h')
+  .version()
+  .alias('version', 'V')
+  .parse();