Faster script execution by ts-node

Summary: It takes few seconds for ts-node to start even for small scripts. TS_NODE_TRANSPILE_ONLY env var makes loading much faster ~100-200ms.

Reviewed By: mweststrate

Differential Revision: D20769639

fbshipit-source-id: 9b09a4e128e6b9c9651de98d8193b1d3a8f42b64

desktop/package.json

@@ -183,7 +183,7 @@
   },
   "scripts": {
     "preinstall": "node scripts/prepare-watchman-config.js && yarn config set ignore-engines",
-    "postinstall": "cross-env TS_NODE_FILES=true node --require ts-node/register scripts/yarn-install.ts && patch-package",
+    "postinstall": "./ts-node scripts/yarn-install.ts && patch-package",
     "rm-dist": "rimraf ../dist",
     "rm-modules": "rimraf **/node_modules node_modules",
     "rm-temp": "rimraf $TMPDIR/jest* $TMPDIR/react-native-packager*",
@@ -192,15 +192,15 @@
     "rm-metro-cache": "rimraf $TMPDIR/metro-cache*",
     "reset": "yarn rm-dist && yarn rm-temp && yarn rm-metro-cache && yarn cache clean && yarn rm-bundle && yarn rm-watches && yarn rm-modules",
     "predev-server": "yarn build:babel-transformer",
-    "dev-server": "cross-env NODE_ENV=development TS_NODE_FILES=true node --require ts-node/register scripts/start-dev-server.ts",
+    "dev-server": "cross-env NODE_ENV=development ./ts-node scripts/start-dev-server.ts",
     "start": "yarn dev-server --inspect=9229",
     "start:break": "yarn dev-server --inspect-brk=9229",
     "start:no-embedded-plugins": "yarn start --no-embedded-plugins",
     "build:babel-transformer": "cd babel-transformer && yarn build",
     "prebuild": "yarn build:babel-transformer && yarn rm-dist",
-    "build": "cross-env NODE_ENV=production TS_NODE_FILES=true node --require ts-node/register scripts/build-release.ts $@",
+    "build": "cross-env NODE_ENV=production ./ts-node scripts/build-release.ts $@",
     "prebuild-headless": "yarn build:babel-transformer",
-    "build-headless": "cross-env NODE_ENV=production TS_NODE_FILES=true node --require ts-node/register scripts/build-headless.ts $@",
+    "build-headless": "cross-env NODE_ENV=production ./ts-node scripts/build-headless.ts $@",
     "open-dist": "open ../dist/mac/Flipper.app --args --launcher=false",
     "test-dist": "yarn build --mac && yarn open-dist --inspect=9229",
     "test-dist:no-embedded-plugins": "yarn build --mac --no-embedded-plugins && yarn open-dist --inspect=9229",
@@ -213,8 +213,8 @@
     "lint:eslint": "eslint . --ext .js,.ts,.tsx",
     "lint:flow": "flow check",
     "lint": "yarn lint:eslint && yarn lint:flow && yarn lint:tsc",
-    "bump-versions": "cross-env TS_NODE_FILES=true node --require ts-node/register scripts/bump-versions.ts",
+    "bump-versions": "./ts-node scripts/bump-versions.ts",
-    "publish-packages": "cross-env TS_NODE_FILES=true node --require ts-node/register scripts/publish-packages.ts",
+    "publish-packages": "./ts-node scripts/publish-packages.ts",
     "everything": "yarn reset && yarn install && yarn lint && yarn test && yarn test-electron && yarn build --mac --mac-dmg --win --linux && yarn build-headless --mac --linux && yarn start"
   },
   "optionalDependencies": {

desktop/ts-node

@@ -0,0 +1,7 @@
+#!/bin/bash
+# Copyright (c) Facebook, Inc. and its affiliates.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+
+env TS_NODE_TRANSPILE_ONLY=true node --require ts-node/register "$@"

desktop/ts-node.cmd

@@ -0,0 +1,8 @@
+@REM Copyright (c) Facebook, Inc. and its affiliates.
+@REM
+@REM This source code is licensed under the MIT license found in the
+@REM LICENSE file in the root directory of this source tree.
+
+@echo off
+
+set TS_NODE_TRANSPILE_ONLY=true & node --require ts-node/register %*