Add safeguard postinstall script prompt

NEWS.md

@@ -1,3 +1,17 @@
+2015-09-21
+==========
+
+  * CyTube is now transpiled with [babel] to allow the use of ES6/ES2015
+    features.  All source files have been moved from `lib` to `src`.
+  * Running `npm install` or `npm run postinstall` will prompt you to
+    build from `src` to `lib`.
+  * Running `npm run build-server` will run the build script without any
+    prompts.
+  * After updating with `git pull`, you should run `npm install` or `npm run
+    build-server` in order to rebuild after the changes.
+
+[babel]: https://babeljs.io/
+
 2015-07-25
 ==========
 

package.json

@@ -36,9 +36,10 @@
     "yamljs": "^0.1.6"
   },
   "scripts": {
-    "postinstall": "babel --source-maps --out-dir lib/ src/",
-    "build-watch": "babel --watch --source-maps --out-dir lib/ src/",
-    "build-player": "$npm_node_execpath build-player.js"
+    "build-player": "$npm_node_execpath build-player.js",
+    "build-server": "babel --source-maps --out-dir lib/ src/",
+    "postinstall": "./postinstall.sh",
+    "server-dev": "babel --watch --source-maps --out-dir lib/ src/"
   },
   "devDependencies": {
     "coffee-script": "^1.9.2"

postinstall.sh

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+echo "In order to run the server, the source files in src/ must be transpiled to lib/.  This will overwrite any changes you have made to the files in lib/."
+echo -n "Do you want to build now? [y/N]? "
+read answer
+echo
+
+if test "$answer" = "y" || test "$answer" = "Y"; then
+    echo "Running $npm_package_scripts_build_server"
+    $npm_package_scripts_build_server
+else
+    echo "Skipping build step.  You can build at a later time by running \`npm run build-server\`."
+fi