Merge pull request #2370 from overleaf/bg-precompile-pug-templates

precompile pug templates

GitOrigin-RevId: bf340f52b4d8c413056be2f3006a28a55548d783

services/web/app/src/infrastructure/Server.js

@@ -29,6 +29,7 @@ const RedirectManager = require('./RedirectManager')
 const ProxyManager = require('./ProxyManager')
 const translations = require('translations-sharelatex').setup(Settings.i18n)
 const Modules = require('./Modules')
+const Views = require('./Views')
 
 const ErrorController = require('../Features/Errors/ErrorController')
 const HttpErrorController = require('../Features/Errors/HttpErrorController')
@@ -168,6 +169,7 @@ expressLocals(webRouter, privateApiRouter, publicApiRouter)
 if (app.get('env') === 'production') {
   logger.info('Production Enviroment')
   app.enable('view cache')
+  Views.precompileViews(app) // precompile templates
 }
 
 webRouter.use(function(req, res, next) {

services/web/app/src/infrastructure/Views.js

@@ -0,0 +1,74 @@
+const logger = require('logger-sharelatex')
+const pug = require('pug')
+
+// List of view names found with
+//
+// git grep res.render | perl filter.pl  | sort -u
+//
+// where filter.pl is the perl script below.
+//
+// #!/usr/bin/perl
+// while (<>) {print "'$1',\n" if /render\(\'(.*?)\'/;}
+
+const viewList = [
+  'admin/index',
+  'admin/register',
+  'beta_program/opt_in',
+  'blog/blog_holder',
+  'external/home/sl',
+  'external/home/v2',
+  'general/404',
+  'general/500',
+  'general/closed',
+  'project/cannot-import-v1-project',
+  'project/editor',
+  'project/importing',
+  'project/invite/not-valid',
+  'project/invite/show',
+  'project/list',
+  'project/v2-import',
+  'referal/bonus',
+  'subscriptions/canceled_subscription',
+  'subscriptions/dashboard',
+  'subscriptions/new',
+  'subscriptions/successful_subscription',
+  'subscriptions/team/invite',
+  'subscriptions/upgradeToAnnual',
+  'sudo_mode/sudo_mode_prompt',
+  'user/activate',
+  'user/confirm_email',
+  'user/login',
+  'user/logout',
+  'user_membership/index',
+  'user_membership/new',
+  'user/one_time_login',
+  'user/passwordReset',
+  'user/reconfirm',
+  'user/register',
+  'user/restricted',
+  'user/sessions',
+  'user/setPassword',
+  'user/settings'
+]
+module.exports = {
+  precompileViews(app) {
+    let startTime = Date.now()
+    let success = 0
+    let failures = 0
+    viewList.forEach(view => {
+      try {
+        let filename = app.get('views') + '/' + view + '.pug'
+        pug.compileFile(filename, { cache: true })
+        console.log('compiled', view)
+        success++
+      } catch (err) {
+        console.log('error compiling', view, err)
+        failures++
+      }
+    })
+    logger.log(
+      { timeTaken: Date.now() - startTime, failures, success },
+      'compiled templates'
+    )
+  }
+}