refactor: simplify code with async/await

Author: jamesgeorge007

Diff for: lib/commands/init.js

@@ -14,7 +14,7 @@ const replace = function (file, tpl, replace) {
 }
 
 // eslint-disable-next-line
-module.exports = function (path = '', local, theme, plugins) {
+module.exports = async function (path = '', local, theme, plugins) {
   const msg =
     '\n' +
     chalk.green('Initialization succeeded!') +
@@ -27,30 +27,25 @@ module.exports = function (path = '', local, theme, plugins) {
   if (exists(cwdPath)) {
     logger.error(`${path || '.'} already exists.`)
 
-    prompt({
+    const {rewrite} = await prompt({
       type: 'confirm',
       name: 'rewrite',
       symbols: {
         separator: ''
       },
       message: 'Are you sure you want to rewrite it?'
     })
-      .then(answers => {
-        if (answers.rewrite === false) {
-          return process.exit(0)
-        }
 
-        createFile(cwdPath, local, theme, plugins, msg)
-      })
-      .catch(console.error)
-
-    return false
+    if (!rewrite) {
+      return
+    }
   }
 
-  createFile(cwdPath, local, theme, plugins, msg)
+  await createFile(cwdPath, local, theme, plugins)
+  console.log(msg)
 }
 
-function createFile(path, local, theme, plugins, msg) {
+async function createFile(path, local, theme, plugins) {
   const target = file => resolve(path, file)
   const readme = exists(cwd('README.md')) || pwd('template/README.md')
   let main = pwd('template/index.html')
@@ -96,49 +91,55 @@ function createFile(path, local, theme, plugins, msg) {
     replace(target(filename), 'repo: \'\'', `repo: '${repo}'`)
   }
 
-  if (plugins) {
-    const officialPlugins = [
-      'front-matter',
-      'search',
-      'disqus',
-      'emoji',
-      'external-script',
-      'ga',
-      'gitalk',
-      'matomo',
-      'zoom-image'
-    ]
-
-    const choices = officialPlugins.map(name => ({name, value: name}))
-    const prompt = new MultiSelect({
-      name: 'plugins',
-      message: 'Select plugins to be used',
-      hint: '(Use <space> to select, <return> to submit)',
-      default: '',
-      choices,
-      indicator(state, choice) {
-        if (choice.enabled) {
-          return colors.cyan(state.symbols.radio.on)
-        }
-
-        return colors.gray(state.symbols.radio.off)
+  // Return early if not opted for plugins
+  if (!plugins) {
+    return replace(target(filename), '\n  _plugins_', '')
+  }
+
+  const officialPlugins = [
+    'front-matter',
+    'search',
+    'disqus',
+    'emoji',
+    'external-script',
+    'ga',
+    'gitalk',
+    'matomo',
+    'zoom-image'
+  ]
+
+  const choices = officialPlugins.map(name => ({name, value: name}))
+  const prompt = new MultiSelect({
+    name: 'plugins',
+    message: 'Select plugins to be used',
+    hint: '(Use <space> to select, <return> to submit)',
+    default: '',
+    choices,
+    indicator(state, choice) {
+      if (choice.enabled) {
+        return colors.cyan(state.symbols.radio.on)
       }
-    })
-    prompt.on('cancel', () => replace(target(filename), '\n  _plugins_', ''))
-    prompt.on('close', () => console.log(msg))
-    prompt.run()
-      .then(answers => {
-        replace(target(filename), '  _plugins_', '_plugin'.repeat(answers.length + 1))
-        let url = ''
-        answers.forEach(plugin => {
-          url = `//cdn.jsdelivr.net/npm/docsify@${version[0]}/lib/plugins/${plugin}.min.js`
-          replace(target(filename), '_plugin', `  <script src="${url}"></script>\n`)
-        })
-        replace(target(filename), '\n_plugin', '')
-      })
-      .catch(console.error)
-  } else {
-    replace(target(filename), '\n  _plugins_', '')
-    console.log(msg)
+
+      return colors.gray(state.symbols.radio.off)
+    }
+  })
+
+  prompt.on('cancel', () => replace(target(filename), '\n  _plugins_', ''))
+
+  let answers = []
+  try {
+    answers = await prompt.run()
+  } catch (err) {
+    logger.error(err)
+    process.exit(1)
   }
+
+  replace(target(filename), '  _plugins_', '_plugin'.repeat(answers.length + 1))
+
+  answers.forEach(plugin => {
+    const url = `//cdn.jsdelivr.net/npm/docsify@${version[0]}/lib/plugins/${plugin}.min.js`
+    replace(target(filename), '_plugin', `  <script src="${url}"></script>\n`)
+  })
+
+  replace(target(filename), '\n_plugin', '')
 }