refactor: unify code style.

packages/@vuepress/core/lib/build.js

@@ -1,3 +1,5 @@
+'use strict'
+
 module.exports = async function build (sourceDir, cliOptions = {}) {
   process.env.NODE_ENV = 'production'
 

packages/@vuepress/core/lib/dev.js

@@ -1,3 +1,5 @@
+'use strict'
+
 module.exports = async function dev (sourceDir, cliOptions = {}) {
   const path = require('path')
   const webpack = require('webpack')

packages/@vuepress/core/lib/eject.js

@@ -1,3 +1,5 @@
+'use strict'
+
 const path = require('path')
 const { chalk, fs, logger } = require('@vuepress/shared-utils')
 

packages/@vuepress/core/lib/index.js

@@ -1,3 +1,5 @@
+'use strict'
+
 exports.dev = require('./dev')
 exports.build = require('./build')
 exports.eject = require('./eject')

packages/@vuepress/core/lib/plugin-api/abstract/AsyncOption.js

@@ -8,14 +8,16 @@ const { logger, chalk, datatypes: { isFunction }} = require('@vuepress/shared-ut
 const Option = require('./Option')
 
 /**
- * Expose Asynchronous Option.
+ * Expose asynchronous option class.
  */
 
 class AsyncOption extends Option {
   /**
    * Asynchronous serial running
+   *
    * @param args
    * @param {Array<AsyncFunction>} args
+   * @api public
    */
 
   async asyncApply (...args) {
@@ -42,8 +44,10 @@ class AsyncOption extends Option {
 
   /**
    * Asynchronous serial running
+   *
    * @param args
    * @param {Array<AsyncFunction>} args
+   * @api public
    */
 
   async parallelApply (...args) {
@@ -72,8 +76,10 @@ class AsyncOption extends Option {
 
   /**
    * Process a value via a pipeline.
+   *
    * @param input
-   * @returns {*}
+   * @returns {any}
+   * @api public
    */
 
   async pipeline (input) {

packages/@vuepress/core/lib/plugin-api/abstract/Option.js

@@ -7,7 +7,7 @@
 const { logger, chalk, compose, datatypes: { isFunction }} = require('@vuepress/shared-utils')
 
 /**
- * Expose Option.
+ * Expose synchronous option class.
  */
 
 class Option {
@@ -18,8 +18,10 @@ class Option {
 
   /**
    * Set value with name.
+   *
    * @param {string} name
    * @param {T} value
+   * @api public
    */
 
   add (name, value) {
@@ -31,7 +33,9 @@ class Option {
 
   /**
    * Delete value with name.
+   *
    * @param {string} name
+   * @api public
    */
 
   delete (name) {
@@ -44,7 +48,9 @@ class Option {
 
   /**
    * Clean option store
+   *
    * @param {string} name
+   * @api public
    */
 
   clear (name) {
@@ -53,25 +59,31 @@ class Option {
 
   /**
    * Get values.
+   *
    * @returns {any<T>}
+   * @api public
    */
 
   get values () {
     return this.items.map(item => item.value)
   }
 
   /**
+   * Get applied values
    *
    * @returns {Array|*|any[]}
+   * @api public
    */
 
   get appliedValues () {
     return this.appliedItems && this.appliedItems.map(item => item.value)
   }
 
   /**
-   * Get values.
+   * Get entries.
+   *
    * @returns {any<T>}
+   * @api public
    */
 
   get entries () {
@@ -80,7 +92,9 @@ class Option {
 
   /**
    * Synchronous running
+   *
    * @param {Array<Function>} args
+   * @api public
    */
 
   syncApply (...args) {

packages/@vuepress/core/lib/plugin-api/index.js

@@ -23,12 +23,14 @@ module.exports = class PluginAPI {
     this.options = {}
     this._pluginContext = context
     this._pluginQueue = []
-    this._initializeOptions(PLUGIN_OPTION_MAP)
+    this.initializeOptions(PLUGIN_OPTION_MAP)
   }
 
   /**
    * Get enabled plugins
+   *
    * @returns {array}
+   * @api public
    */
 
   get enabledPlugins () {
@@ -37,7 +39,9 @@ module.exports = class PluginAPI {
 
   /**
    * Get disabled plugins
+   *
    * @returns {array}
+   * @api public
    */
 
   get disabledPlugins () {
@@ -46,6 +50,8 @@ module.exports = class PluginAPI {
 
   /**
    * apply plugin.
+   *
+   * @api public
    */
 
   apply () {
@@ -60,9 +66,11 @@ module.exports = class PluginAPI {
 
   /**
    * Normalize plugin and push it to the plugin queue.
+   *
    * @param {object} pluginRaw
    * @param {object} pluginOptions
    * @returns {module.PluginAPI}
+   * @api public
    */
 
   use (pluginRaw, pluginOptions = {}) {
@@ -84,8 +92,10 @@ module.exports = class PluginAPI {
 
   /**
    * Use plugin by config.
+   *
    * @param pluginsConfig
    * @returns {module.PluginAPI}
+   * @api public
    */
 
   useByPluginsConfig (pluginsConfig) {
@@ -98,9 +108,11 @@ module.exports = class PluginAPI {
 
   /**
    * initialize plugin options.
+   *
+   * @api private
    */
 
-  _initializeOptions () {
+  initializeOptions () {
     Object.keys(PLUGIN_OPTION_MAP).forEach(key => {
       const option = PLUGIN_OPTION_MAP[key]
       this.options[option.name] = instantiateOption(option.name)
@@ -109,10 +121,12 @@ module.exports = class PluginAPI {
 
   /**
    * Register plugin option.
+   *
    * @param {string} key
    * @param {any} value
    * @param {string} pluginName
    * @returns {module.PluginAPI}
+   * @api private
    */
 
   registerOption (key, value, pluginName) {
@@ -132,6 +146,8 @@ module.exports = class PluginAPI {
 
   /**
    * apply plugin.
+   *
+   * @api private
    */
 
   applyPlugin ({

packages/@vuepress/core/lib/plugin-api/override/EnhanceAppFilesOption.js

@@ -1,4 +1,3 @@
-
 'use strict'
 
 /**

packages/@vuepress/core/lib/prepare/AppContext.js

@@ -1,3 +1,9 @@
+'use strict'
+
+/**
+ * Module dependencies.
+ */
+
 const path = require('path')
 const createMarkdown = require('../markdown/index')
 const loadConfig = require('./loadConfig')
@@ -8,17 +14,23 @@ const Page = require('./Page')
 const I18n = require('./I18n')
 const PluginAPI = require('../plugin-api/index')
 
+/**
+ * Expose AppContext.
+ */
+
 module.exports = class AppContext {
   /**
    * Instantiate the app context with a new API
-   * @param { string } sourceDir
+   *
+   * @param {string} sourceDir
    * @param {{
    *  isProd: boolean,
    *  plugins: pluginsConfig,
    *  theme: themeNameConfig
    *  temp: string
    * }} options
    */
+
   constructor (sourceDir, cliOptions = {}, isProd) {
     this.sourceDir = sourceDir
     this.cliOptions = cliOptions
@@ -47,8 +59,11 @@ module.exports = class AppContext {
 
   /**
    * Load pages, load plugins, apply plugins / plugin options, etc.
+   *
    * @returns {Promise<void>}
+   * @api private
    */
+
   async process () {
     this.normalizeHeadTagUrls()
     this.markdown = createMarkdown(this.siteConfig)
@@ -72,7 +87,10 @@ module.exports = class AppContext {
 
   /**
    * Apply internal and user plugins
+   *
+   * @api private
    */
+
   resolvePlugins () {
     const themeConfig = this.themeConfig
     const siteConfig = this.siteConfig
@@ -111,7 +129,10 @@ module.exports = class AppContext {
 
   /**
    * normalize head tag urls for base
+   *
+   * @api private
    */
+
   normalizeHeadTagUrls () {
     if (this.base !== '/' && this.siteConfig.head) {
       this.siteConfig.head.forEach(tag => {
@@ -132,7 +153,10 @@ module.exports = class AppContext {
 
   /**
    * Make template configurable
+   *
+   * @api private
    */
+
   resolveTemplates () {
     let { ssrTemplate, devTemplate } = this.siteConfig
     const templateDir = path.resolve(this.vuepressDir, 'templates')
@@ -156,8 +180,11 @@ module.exports = class AppContext {
 
   /**
    * Find all page source files located in sourceDir
+   *
    * @returns {Promise<void>}
+   * @api private
    */
+
   async resolvePages () {
     // resolve pageFiles
     const patterns = ['**/*.md', '!.vuepress', '!node_modules']
@@ -179,8 +206,11 @@ module.exports = class AppContext {
 
   /**
    * Add a page
-   * @returns { Promise<void> }
+   *
+   * @returns {Promise<void>}
+   * @api public
    */
+
   async addPage (options) {
     options.permalinkPattern = this.siteConfig.permalink
     const page = new Page(options)
@@ -194,15 +224,19 @@ module.exports = class AppContext {
 
   /**
    * Resolve theme
-   * @returns { Promise<void> }
+   *
+   * @returns {Promise<void>}
+   * @api private
    */
+
   async resolveTheme () {
     const theme = this.siteConfig.theme || this.cliOptions.theme
     Object.assign(this, (await loadTheme(theme, this.sourceDir, this.vuepressDir)))
   }
 
   /**
    * Get the data to be delivered to the client.
+   *
    * @returns {{
    *  title: string,
    *  description: string,
@@ -211,7 +245,9 @@ module.exports = class AppContext {
    *  themeConfig: ThemeConfig,
    *  locales: Locales
    * }}
+   * @api public
    */
+
   getSiteData () {
     return {
       title: this.siteConfig.title || '',
@@ -233,6 +269,7 @@ module.exports = class AppContext {
  *  tempPath: string
  * }}
  */
+
 function createTemp (tempPath) {
   if (!tempPath) {
     tempPath = path.resolve(__dirname, '../../.temp')