add more build files

build/package/build.js

@@ -0,0 +1,78 @@
+import fs from 'fs'
+import path from 'path'
+import zlib from 'zlib'
+import uglify from 'uglify-js'
+import { rollup } from 'rollup'
+import config from './config'
+
+if (!fs.existsSync('dist')) {
+  fs.mkdirSync('dist')
+}
+
+function getSize(code) {
+  return `${(code.length / 1024).toFixed(2)}kb`
+}
+
+function logError(e) {
+  console.log(e)
+}
+
+function blue(str) {
+  return `\x1b[1m\x1b[34m${str}\x1b[39m\x1b[22m`
+}
+
+function write(dest, code, zip) {
+  return new Promise((resolve, reject) => {
+    function report(extra) {
+      console.log(`${blue(path.relative(process.cwd(), dest)) } ${getSize(code) }${extra || ''}`)
+      resolve()
+    }
+
+    fs.writeFile(dest, code, error => {
+      if (error) return reject(error)
+      if (zip) {
+        zlib.gzip(code, (err, zipped) => {
+          if (err) return reject(err)
+          report(` (gzipped: ${getSize(zipped)})`)
+        })
+      } else {
+        report()
+      }
+    })
+  })
+}
+
+function buildEntry({ input, output }) {
+  const isProd = /min\.js$/.test(output.file)
+  return rollup(input)
+    .then(bundle => bundle.generate(output))
+    .then(({ code }) => {
+      if (isProd) {
+        const minified = uglify.minify(code, {
+          output: {
+            preamble: output.banner,
+            ascii_only: true,
+          },
+        }).code
+        return write(output.file, minified, true)
+      }
+      return write(output.file, code)
+    })
+}
+
+function build(builds) {
+  let built = 0
+  const total = builds.length
+  const next = () => {
+    buildEntry(builds[built]).then(() => {
+      built++
+      if (built < total) {
+        next()
+      }
+    }).catch(logError)
+  }
+
+  next()
+}
+
+build(config)