Introduce Release script (#4631)

scripts/release/steps/bump-prettier.js

@@ -0,0 +1,32 @@
+"use strict";
+
+const { exec, spawn } = require("child-process-promise");
+const { logPromise } = require("../utils");
+
+async function format() {
+  await exec("yarn lint --fix");
+  await exec("yarn lint-docs --fix");
+}
+
+async function commit(version) {
+  await spawn("git", [
+    "commit",
+    "-am",
+    `Bump Prettier dependency to ${version}`
+  ]);
+  await exec("git push");
+}
+
+module.exports = async function({ dry, version }) {
+  if (dry) {
+    return;
+  }
+
+  await logPromise(
+    "Installing Prettier",
+    spawn("yarn", ["add", "--dev", `prettier@${version}`])
+  );
+
+  await logPromise("Updating files", format());
+  await logPromise("Committing changed files", commit(version));
+};