rename _assets to assets

Former-commit-id: 3bb6cc662da9e9255bd61fef42430c271002fd49 [formerly eaf1785c4f85522e4eb66d00a6ae9dd9ecc4fcb4] [formerly addd3ffe1396e6df84cdc3e8787d57ffb2be3dc6 [formerly 800693ad49e76c880230eb8cd1bc4a95e8c39fff]]
Former-commit-id: 6c24d30f26529457202f470620a0ea1d31772b13 [formerly 384d2af17fe100b9db91462eb41337f9dff855f4]
Former-commit-id: 94f4933e12f97ee7468c884f041612498e07ba32

assets/build/dev.js

@@ -0,0 +1,26 @@
+require('./check-versions')()
+
+process.env.NODE_ENV = 'development'
+
+var rm = require('rimraf')
+var path = require('path')
+var chalk = require('chalk')
+var webpack = require('webpack')
+var config = require('./config')
+var webpackConfig = require('./webpack.dev.conf')
+
+rm(path.join(config.build.assetsRoot, config.build.assetsSubDirectory), err => {
+  if (err) throw err
+  webpack(webpackConfig, function (err, stats) {
+    if (err) throw err
+    process.stdout.write(stats.toString({
+      colors: true,
+      modules: false,
+      children: false,
+      chunks: false,
+      chunkModules: false
+    }) + '\n\n')
+
+    console.log(chalk.cyan('  Build complete.\n'))
+  })
+})