Makes generate asynchronous

lib/generate.js

@@ -86,31 +86,32 @@ export default async function () {
       this.routes.push(route)
     }
   })
-  let n = 0
-  for (let route of this.routes) {
-    await waitFor(n++ * self.options.generate.interval)
-    try {
-      var { html, error } = await self.renderRoute(route, { _generate: true })
-      if (error) {
-        errors.push({ type: 'handled', route, error })
+  let routes = this.routes
+  while (routes.length) {
+    let n = 0
+    await Promise.all(routes.splice(0, 500).map(async (route) => {
+      await waitFor(n++ * self.options.generate.interval)
+      try {
+        var { html, error } = await self.renderRoute(route, { _generate: true })
+        if (error) {
+          errors.push({ type: 'handled', route, error })
+        }
+      } catch (err) {
+        errors.push({ type: 'unhandled', route, error: err })
       }
-    } catch (err) {
-      errors.push({ type: 'unhandled', route, error: err })
-      continue
-    }
-    try {
-      var minifiedHtml = minify(html, self.options.generate.minify)
-    } catch (err) {
-      let minifyErr = new Error(`HTML minification failed. Make sure the route generates valid HTML. Failed HTML:\n ${html}`)
-      errors.push({ type: 'unhandled', route, error: minifyErr })
-      continue
-    }
-    var path = join(route, sep, 'index.html') // /about -> /about/index.html
-    debug('Generate file: ' + path)
-    path = join(distPath, path)
-    // Make sure the sub folders are created
-    await mkdirp(dirname(path))
-    await writeFile(path, minifiedHtml, 'utf8')
+      try {
+        var minifiedHtml = minify(html, self.options.generate.minify)
+      } catch (err) {
+        let minifyErr = new Error(`HTML minification failed. Make sure the route generates valid HTML. Failed HTML:\n ${html}`)
+        errors.push({ type: 'unhandled', route, error: minifyErr })
+      }
+      var path = join(route, sep, 'index.html') // /about -> /about/index.html
+      debug('Generate file: ' + path)
+      path = join(distPath, path)
+      // Make sure the sub folders are created
+      await mkdirp(dirname(path))
+      await writeFile(path, minifiedHtml, 'utf8')
+    }))
   }
   // Add .nojekyll file to let Github Pages add the _nuxt/ folder
   // https://help.github.com/articles/files-that-start-with-an-underscore-are-missing/

lib/utils.js

@@ -21,7 +21,7 @@ export function setAnsiColors (ansiHTML) {
   })
 }
 
-export function * waitFor (ms) {
+export async function waitFor (ms) {
   return new Promise(function (resolve) {
     setTimeout(resolve, (ms || 0))
   })

test/utils.test.js

@@ -28,9 +28,9 @@ test('setAnsiColors', t => {
   t.pass()
 })
 
-test('waitFor', function * (t) {
+test('waitFor', async (t) => {
   let s = Date.now()
-  yield utils.waitFor(100)
+  await utils.waitFor(100)
   t.true(Date.now() - s >= 100)
 })