tweak cli output

lib/build.js

@@ -5,6 +5,7 @@ module.exports = async function build (sourceDir, cliOptions = {}) {
   const path = require('path')
   const chalk = require('chalk')
   const webpack = require('webpack')
+  const readline = require('readline')
   const { promisify } = require('util')
   const rimraf = promisify(require('rimraf'))
   const mkdirp = promisify(require('mkdirp'))
@@ -17,6 +18,7 @@ module.exports = async function build (sourceDir, cliOptions = {}) {
   const { createBundleRenderer } = require('vue-server-renderer')
   const { normalizeHeadTag, applyUserWebpackConfig } = require('./util')
 
+  process.stdout.write('Extracting site metadata...')
   const options = await prepare(sourceDir)
   if (cliOptions.outDir) {
     options.outDir = cliOptions.outDir
@@ -28,6 +30,9 @@ module.exports = async function build (sourceDir, cliOptions = {}) {
   let clientConfig = createClientConfig(options, cliOptions).toConfig()
   let serverConfig = createServerConfig(options, cliOptions).toConfig()
 
+  // disable uglify for server
+  serverConfig.optimization = { minimizer: [] }
+
   // apply user config...
   const userConfig = options.siteConfig.configureWebpack
   if (userConfig) {
@@ -53,7 +58,6 @@ module.exports = async function build (sourceDir, cliOptions = {}) {
   const renderer = createBundleRenderer(serverBundle, {
     clientManifest,
     runInNewContext: false,
-    // shouldPrefetch: () => false,
     inject: false,
     template: fs.readFileSync(path.resolve(__dirname, 'app/index.ssr.html'), 'utf-8')
   })
@@ -64,14 +68,21 @@ module.exports = async function build (sourceDir, cliOptions = {}) {
     .join('\n  ')
 
   // render pages
-  await Promise.all(options.siteData.pages.map(renderPage))
+  console.log('Rendering static HTML...')
+  for (const page of options.siteData.pages) {
+    await renderPage(page)
+  }
 
   // if the user does not have a custom 404.md, generate the theme's default
   if (!options.siteData.pages.some(p => p.path === '/404.html')) {
     await renderPage({ path: '/404.html' })
   }
 
+  readline.clearLine(process.stdout, 0)
+  readline.cursorTo(process.stdout, 0)
+
   if (options.siteConfig.serviceWorker) {
+    console.log('Generating service worker...')
     const wbb = require('workbox-build')
     wbb.generateSW({
       swDest: path.resolve(outDir, 'service-worker.js'),
@@ -120,8 +131,11 @@ module.exports = async function build (sourceDir, cliOptions = {}) {
 
   async function renderPage (page) {
     const pagePath = page.path
-    const pageMeta = renderPageMeta(page.frontmatter && page.frontmatter.meta)
+    readline.clearLine(process.stdout, 0)
+    readline.cursorTo(process.stdout, 0)
+    process.stdout.write(`Rendering page: ${pagePath}`)
 
+    const pageMeta = renderPageMeta(page.frontmatter && page.frontmatter.meta)
     const context = {
       url: pagePath,
       userHeadTags,

lib/dev.js

@@ -17,6 +17,7 @@ module.exports = async function dev (sourceDir, cliOptions = {}) {
   const { applyUserWebpackConfig } = require('./util')
   const { frontmatterEmitter } = require('./webpack/markdownLoader')
 
+  process.stdout.write('Extracting site metadata...')
   const options = await prepare(sourceDir)
 
   // setup watchers to update options and dynamically generated files

lib/prepare.js

@@ -2,6 +2,9 @@ const fs = require('fs')
 const path = require('path')
 const globby = require('globby')
 const mkdirp = require('mkdirp')
+const { promisify } = require('util')
+const readFile = promisify(fs.readFile)
+const writeFile = promisify(fs.writeFile)
 const yaml = require('yaml-front-matter')
 const tempPath = path.resolve(__dirname, 'app/.temp')
 const { inferTitle, extractHeaders } = require('./util')
@@ -9,11 +12,11 @@ const { inferTitle, extractHeaders } = require('./util')
 mkdirp(tempPath)
 
 const tempCache = new Map()
-function writeTemp (file, content) {
+async function writeTemp (file, content) {
   // cache write to avoid hitting the dist if it didn't change
   const cached = tempCache.get(file)
   if (cached !== content) {
-    fs.writeFileSync(path.join(tempPath, file), content)
+    await writeFile(path.join(tempPath, file), content)
     tempCache.set(file, content)
   }
 }
@@ -26,14 +29,14 @@ module.exports = async function prepare (sourceDir) {
   const routesCode = await genRoutesFile(options)
   const componentCode = await genComponentRegistrationFile(options)
 
-  writeTemp('routes.js', [
+  await writeTemp('routes.js', [
     componentCode,
     routesCode
   ].join('\n\n'))
 
   // 3. generate siteData
   const dataCode = `export const siteData = ${JSON.stringify(options.siteData, null, 2)}`
-  writeTemp('siteData.js', dataCode)
+  await writeTemp('siteData.js', dataCode)
 
   // 4. generate basic polyfill if need to support older browsers
   let polyfillCode = ``
@@ -42,13 +45,13 @@ module.exports = async function prepare (sourceDir) {
 `import 'es6-promise/auto'
 if (!Object.assign) Object.assign = require('object-assign')`
   }
-  writeTemp('polyfill.js', polyfillCode)
+  await writeTemp('polyfill.js', polyfillCode)
 
   // 5. handle user override
   if (options.useDefaultTheme) {
     const overridePath = path.resolve(sourceDir, '.vuepress/override.styl')
     const hasUserOverride = fs.existsSync(overridePath)
-    writeTemp(`override.styl`, hasUserOverride ? `@import(${JSON.stringify(overridePath)})` : ``)
+    await writeTemp(`override.styl`, hasUserOverride ? `@import(${JSON.stringify(overridePath)})` : ``)
   }
 
   return options
@@ -141,13 +144,13 @@ async function resolveOptions (sourceDir) {
   }
 
   // resolve pages
-  const pagesData = options.pageFiles.map(file => {
+  const pagesData = await Promise.all(options.pageFiles.map(async (file) => {
     const data = {
       path: fileToPath(file)
     }
 
     // extract yaml frontmatter
-    const content = fs.readFileSync(path.resolve(sourceDir, file), 'utf-8')
+    const content = await readFile(path.resolve(sourceDir, file), 'utf-8')
     const frontmatter = yaml.loadFront(content)
     // infer title
     const title = inferTitle(frontmatter)
@@ -163,7 +166,7 @@ async function resolveOptions (sourceDir) {
       data.frontmatter = frontmatter
     }
     return data
-  })
+  }))
 
   // resolve site data
   options.siteData = {

lib/util.js

@@ -43,7 +43,16 @@ exports.parseFrontmatter = content => {
   return yaml.loadFront(content)
 }
 
+const LRU = require('lru-cache')
+const cache = LRU({ max: 1000 })
+
 exports.extractHeaders = (content, include = []) => {
+  const key = content + include.join(',')
+  const hit = cache.get(key)
+  if (hit) {
+    return hit
+  }
+
   const md = require('./markdown')({})
   const S = require('string')
   const tokens = md.parse(content, {})
@@ -59,5 +68,7 @@ exports.extractHeaders = (content, include = []) => {
       })
     }
   })
+
+  cache.set(key, res)
   return res
 }

lib/webpack/markdownLoader.js

@@ -5,25 +5,26 @@ const { EventEmitter } = require('events')
 const { getOptions } = require('loader-utils')
 const yaml = require('yaml-front-matter')
 const { inferTitle, extractHeaders } = require('../util')
+const LRU = require('lru-cache')
 
-const cache = new Map()
-const devCache = new Map()
+const cache = LRU({ max: 1000 })
+const devCache = LRU({ max: 1000 })
 
 module.exports = function (src) {
+  const isProd = process.env.NODE_ENV === 'production'
+  const isServer = this.target === 'node'
+  const { markdown, sourceDir } = getOptions(this)
+
   // we implement a manual cache here because this loader is chained before
   // vue-loader, and will be applied on the same file multiple times when
   // selecting the individual blocks.
   const file = this.resourcePath
   const key = hash(file + src)
   const cached = cache.get(key)
-  if (cached) {
+  if (cached && (isProd || /\?vue/.test(this.resourceQuery))) {
     return cached
   }
 
-  const isProd = process.env.NODE_ENV === 'production'
-  const isServer = this.target === 'node'
-  const { markdown, sourceDir } = getOptions(this)
-
   const frontmatter = yaml.loadFront(src)
   const content = frontmatter.__content
 

package.json

@@ -58,6 +58,7 @@
     "koa-mount": "^3.0.0",
     "koa-static": "^4.0.2",
     "loader-utils": "^1.1.0",
+    "lru-cache": "^4.1.2",
     "markdown-it": "^8.4.1",
     "markdown-it-anchor": "^4.0.0",
     "markdown-it-container": "^2.0.0",