init (graduate from prototype)

scripts/build.js

@@ -0,0 +1,70 @@
+const fs = require('fs-extra')
+const path = require('path')
+const zlib = require('zlib')
+const chalk = require('chalk')
+const execa = require('execa')
+const dts = require('dts-bundle')
+const { targets, fuzzyMatchTarget } = require('./utils')
+
+const target = process.argv[2]
+
+;(async () => {
+  if (!target) {
+    await buildAll(targets)
+    checkAllSizes(targets)
+  } else {
+    await buildAll(fuzzyMatchTarget(target))
+    checkAllSizes(fuzzyMatchTarget(target))
+  }
+})()
+
+async function buildAll (targets) {
+  for (const target of targets) {
+    await build(target)
+  }
+}
+
+async function build (target) {
+  const pkgDir = path.resolve(`packages/${target}`)
+
+  await fs.remove(`${pkgDir}/dist`)
+
+  await execa('rollup', [
+    '-c',
+    '--environment',
+    `NODE_ENV:production,TARGET:${target}`
+  ], { stdio: 'inherit' })
+
+  const dtsOptions = {
+    name: target === 'vue' ? target : `@vue/${target}`,
+    main: `${pkgDir}/dist/packages/${target}/src/index.d.ts`,
+    out: `${pkgDir}/dist/index.d.ts`
+  }
+  dts.bundle(dtsOptions)
+  console.log()
+  console.log(chalk.blue(chalk.bold(`generated typings at ${dtsOptions.out}`)))
+
+  await fs.remove(`${pkgDir}/dist/packages`)
+}
+
+function checkAllSizes (targets) {
+  console.log()
+  for (const target of targets) {
+    checkSize(target)
+  }
+  console.log()
+}
+
+function checkSize (target) {
+  const pkgDir = path.resolve(`packages/${target}`)
+  const esmProdBuild = `${pkgDir}/dist/${target}.esm-browser.prod.js`
+  if (fs.existsSync(esmProdBuild)) {
+    const file = fs.readFileSync(esmProdBuild)
+    const minSize = (file.length / 1024).toFixed(2) + 'kb'
+    const gzipped = zlib.gzipSync(file)
+    const gzipSize = (gzipped.length / 1024).toFixed(2) + 'kb'
+    console.log(`${
+      chalk.gray(chalk.bold(target))
+    } min:${minSize} / gzip:${gzipSize}`)
+  }
+}