From ae0258410c6e3399404ae5e081a1f8dc48c798a1 Mon Sep 17 00:00:00 2001
From: Greg Hurrell <glh@fb.com>
Date: Tue, 20 Oct 2015 10:08:53 -0700
Subject: [PATCH] Prefer node 4.x, npm 2.x in development

At the moment, our test suite won't run properly under npm 3.x, so let's
specify our requirement in the package.json.

Once npm 3.x goes "final" we'll make sure that we support both. In the
meantime, this will prevent developers running the tests from seeing
spurious failures like the ones reported here when using npm 3:

https://github.com/facebook/relay/issues/396

Tested by installing npm 3, then running `npm install`, and seeing the
expected error from the `check-dev-engines.js` script:

    AssertionError: Current npm version is not supported for
    development, expected "3.0.0" to satisfy "2.x".
---
 package.json | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/package.json b/package.json
index 781c3438eee51..4bd7d6301b059 100644
--- a/package.json
+++ b/package.json
@@ -21,6 +21,7 @@
   "repository": "facebook/relay",
   "scripts": {
     "build": "gulp",
+    "postinstall": "node node_modules/fbjs-scripts/node/check-dev-engines.js package.json",
     "prepublish": "npm run build",
     "test": "f() { EXIT=0; npm run typecheck || EXIT=$?; NODE_ENV=test jest $@ || EXIT=$?; exit $EXIT; }; f",
     "typecheck": "flow check src/",
@@ -61,6 +62,10 @@
     "webpack": "1.11.0",
     "webpack-stream": "^2.1.0"
   },
+  "devEngines": {
+    "node": "4.x",
+    "npm": "2.x"
+  },
   "jest": {
     "rootDir": "",
     "scriptPreprocessor": "scripts/jest/preprocessor.js",