Restore link.js

scripts/link.js

@@ -0,0 +1,23 @@
+const { join } = require('path');
+const execa = require('execa');
+const fs = require('fs-extra');
+const { promisify } = require('util');
+const glob = promisify(require('glob').glob);
+
+async function run() {
+  const packageDirs = await glob('packages/*');
+
+  console.log('Linking all packages');
+
+  const packages = packageDirs.map(dir => ({
+    dir,
+    pkgJSON: fs.readJSONSync(join(dir, 'package.json')),
+  }));
+
+  await Promise.all(packages.map(({ dir }) => execa('yarn', ['link'], { cwd: dir })));
+
+  const packageNames = packages.map(p => p.pkgJSON.name).join(' ');
+  console.log(`Package names: \n ${packageNames}\n`);
+}
+
+run().catch(err => console.error(err));