feat: optimize minification

vuejs · Jan 24, 2018 · bd1ffd3 · bd1ffd3
1 parent eddc68e
commit bd1ffd3
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Showing 2 changed files with 34 additions and 0 deletions.
diff --git a/packages/@vue/cli-service/lib/config/base.js b/packages/@vue/cli-service/lib/config/base.js
@@ -35,6 +35,9 @@ module.exports = (api, options) => {
  .add(api.resolve('node_modules'))
  .add(resolveLocal('node_modules'))
 
+ webpackConfig.module
+ .noParse(/^(vue|vue-router|vuex|vuex-router-sync)$/)
+
  // js is handled by cli-plugin-bable
 
  webpackConfig.module

diff --git a/packages/@vue/cli-service/lib/config/prod.js b/packages/@vue/cli-service/lib/config/prod.js
@@ -49,6 +49,37 @@ module.exports = (api, options) => {
  .use(require('uglifyjs-webpack-plugin'), [{
  uglifyOptions: {
  compress: {
+ // turn off flags with small gains to speed up minification
+ arrows: false,
+ collapse_vars: false, // 0.3kb
+ comparisons: false,
+ computed_props: false,
+ hoist_funs: false,
+ hoist_props: false,
+ hoist_vars: false,
+ inline: false,
+ loops: false,
+ negate_iife: false,
+ properties: false,
+ reduce_funcs: false,
+ reduce_vars: false,
+ switches: false,
+ toplevel: false,
+ typeofs: false,
+
+ // a few flags with noticable gains/speed ratio
+ // numbers based on out of the box vendor bundle
+ booleans: true, // 0.7kb
+ if_return: true, // 0.4kb
+ sequences: true, // 0.7kb
+ unused: true, // 2.3kb
+
+ // required features to drop conditional branches
+ conditionals: true,
+ dead_code: true,
+ evaluate: true,
+
+ // turn off warnings when dropping dead code
  warnings: false
  }
  },