Add update help

Author: ryanblock

src/commands/dev/help.js

@@ -8,14 +8,17 @@ module.exports = {
         {
           name: '-p, --port',
           description: `Configure the dev server's HTTP port`,
+          optional: true,
         },
         {
           name: '-v, --verbose',
           description: 'Enable verbose output',
+          optional: true,
         },
         {
           name: '--disable-symlinks',
           description: '[Advanced] Disable shared code symlinking',
+          optional: true,
         },
       ],
     },

src/commands/update/help.js

@@ -0,0 +1,16 @@
+module.exports = {
+  en: {
+    usage: [ 'update', '[options]' ],
+    description: 'Update Begin to the latest version',
+    contents: {
+      header: 'Update options',
+      items: [
+        {
+          name: '--use',
+          description: 'Switch between `latest` (stable) and `main` (canary) channels',
+          optional: true,
+        },
+      ],
+    }
+  }
+}

src/commands/update/index.js

@@ -1,4 +1,5 @@
 let names = { en: [ 'update', 'upgrade' ] }
+let help = require('./help')
 
 async function action (params) {
   let { appVersion, args } = params
@@ -117,4 +118,5 @@ async function getVersions () {
 module.exports = {
   names,
   action,
+  help,
 }

src/helper/index.js

@@ -40,7 +40,7 @@ module.exports = function helper (params, cmdHelp) {
   help += br(2) + `${c.dim('Global options:')}\n${globalOptions}`
 
   // Examples
-  if (examples.length) {
+  if (examples?.length) {
     let exampleItems = examples.map(({ name, example }) => {
       return `${indent}${name}\n${indent}${c.green('$ ' + example)}`
     }).join(br(2))