Refactor default command out to proper command module.

Author: philnash

src/cli.js

@@ -1,5 +1,5 @@
 const yargs = require('yargs');
-const { handler, describe, cliInfo } = require('./command');
+const DefaultCommand = require('./command');
 
 function cli(cwd) {
   yargs.help();
@@ -9,19 +9,8 @@ function cli(cwd) {
 
   yargs.default('path', cwd);
 
-  yargs.usage(describe);
-  yargs.command(
-    '$0 <name>',
-    describe,
-    command => {
-      command.positional('name', {
-        describe: 'Name of your project.',
-        type: 'string'
-      });
-      command.options(cliInfo.options);
-    },
-    argv => handler(argv)
-  );
+  yargs.usage(DefaultCommand.describe);
+  yargs.command(DefaultCommand);
 
   return yargs;
 }

src/command.js

@@ -1,4 +1,7 @@
-const createTwilioFunction = require('./create-twilio-function');
+const handler = require('./create-twilio-function');
+
+const command = '$0 <name>';
+const describe = 'Creates a new Twilio Function project';
 
 const cliInfo = {
   options: {
@@ -27,8 +30,18 @@ const cliInfo = {
   }
 };
 
+const builder = command => {
+  command.positional('name', {
+    describe: 'Name of your project.',
+    type: 'string'
+  });
+  command.options(cliInfo.options);
+};
+
 module.exports = {
-  describe: 'Creates a new Twilio Function project',
-  handler: createTwilioFunction,
-  cliInfo: cliInfo
+  command,
+  describe,
+  handler,
+  cliInfo,
+  builder
 };