Build: Add v8 specific platform builds

Idea courtesy of node-fibers.
When installing, check to see if there is a compatible binary version
for the current version of v8. v8 3.6 = Node 0.6, 3.11 = Node 0.8, 3.14
= Node 0.10. The test suite is run as well, so that any underlying
libsass breaks will be rebuilt.

Closes gh-146

.gitignore

@@ -19,3 +19,5 @@ vagrant
 .lock-wscript
 .DS_Store
 .sass-cache
+
+bin/*-v8-*
\ No newline at end of file

build.js

+#!/usr/bin/env node
+var cp = require('child_process'),
+	fs = require('fs'),
+	path = require('path'),
+	Mocha = require('mocha');
+
+// Parse args
+var force = false, debug = false;
+
+var arch = process.arch,
+	platform = process.platform,
+	v8 = /[0-9]+\.[0-9]+/.exec(process.versions.v8)[0];
+
+var args = process.argv.slice(2).filter(function(arg) {
+	if (arg === '-f') {
+		force = true;
+		return false;
+	} else if (arg.substring(0, 13) === '--target_arch') {
+		arch = arg.substring(14);
+	} else if (arg === '--debug') {
+		debug = true;
+	}
+	return true;
+});
+if (!{ia32: true, x64: true, arm: true}.hasOwnProperty(arch)) {
+	console.error('Unsupported (?) architecture: `'+ arch+ '`');
+	process.exit(1);
+}
+
+// Test for pre-built library
+var modPath = platform + '-' + arch + '-v8-' + v8;
+if (!force) {
+	try {
+		fs.statSync(path.join(__dirname, 'bin', modPath, 'binding.node'));
+		console.log('`'+ modPath+ '` exists; testing');
+		 
+		var mocha = new Mocha({
+		    reporter: 'min',
+		    ui: 'bdd',
+		    timeout: 999999
+		});
+		 
+		mocha.addFile(path.resolve(__dirname, "test", "test.js"));
+
+		var runner = mocha.run(function (done) {
+			if (done !== 0) {
+				console.log('Problem with the binary; manual build incoming');
+				console.log('Please consider contributing the release binary to https://github.com/andrew/node-sass-binaries for npm distribution.');
+				build();
+			} else {
+				console.log('Binary is fine; exiting');
+			}
+		});
+	} catch (ex) {
+		// Stat failed
+		build();
+	}
+} else {
+	build();
+}
+
+// Build it
+function build() {
+	cp.spawn(
+		process.platform === 'win32' ? 'node-gyp.cmd' : 'node-gyp',
+		['rebuild'].concat(args),
+		{customFds: [0, 1, 2]})
+	.on('exit', function(err) {
+		if (err) {
+			if (err === 127) {
+				console.error(
+					'node-gyp not found! Please upgrade your install of npm! You need at least 1.1.5 (I think) '+
+					'and preferably 1.1.30.'
+				);
+			} else {
+				console.error('Build failed');
+			}
+			return process.exit(err);
+		}
+		afterBuild();
+	});
+}
+
+// Move it to expected location
+function afterBuild() {
+	var targetPath = path.join(__dirname, 'build', debug ? 'Debug' : 'Release', 'binding.node');
+	var installPath = path.join(__dirname, 'bin', modPath, 'binding.node');
+
+	try {
+		fs.mkdirSync(path.join(__dirname, 'bin', modPath));
+	} catch (ex) {}
+
+	try {
+		fs.statSync(targetPath);
+	} catch (ex) {
+		console.error('Build succeeded but target not found');
+		process.exit(1);
+	}
+	fs.renameSync(targetPath, installPath);
+	console.log('Installed in `'+ installPath+ '`');
+}

package.json

@@ -24,8 +24,9 @@
     "url": "git://github.com/andrew/node-sass.git"
   },
   "scripts": {
-    "install": "node rebuild.js",
-    "test": "mocha test"
+    "install": "node build.js",
+    "test": "mocha test",
+    "prepublish": "bash scripts/prepublish.sh"
   },
   "bin": {
     "node-sass": "bin/node-sass"
@@ -38,9 +39,7 @@
     "mkdirp": "0.3.x",
     "colors": "0.6.0-1",
     "optimist": "0.6.x",
-    "node-watch": "0.3.x"
-  },
-  "devDependencies": {
-    "mocha": "1.7.x"
+    "node-watch": "0.3.x",
+    "mocha": "1.13.x"
   }
 }

rebuild.js

-var spawn = require('child_process').spawn;
-
-// Only rebuild the binaries if on Mac OS or Linux, as we're assuming that
-// the toolchain exists. This is here to not rebuild on windows, as that
-// had issues as of https://github.com/andrew/node-sass/issues/123
-if (process.platform === 'darwin' || process.platform === 'linux') {
-  spawn('node-gyp', ['rebuild'], {stdio: 'inherit'});
-}

sass.js

 var binding;
 var fs = require('fs');
 var path = require('path');
+
+var v8 = 'v8-' + /[0-9]+\.[0-9]+/.exec(process.versions.v8)[0];
+var modPath = path.join(__dirname, 'bin', process.platform + '-' + process.arch + '-' + v8, 'binding');
 try {
   if (fs.realpathSync(__dirname + '/build')) {
     // use the build version if it exists
     binding = require(__dirname + '/build/Release/binding');
   }
 } catch (e) {
-  // default to a precompiled binary if no build exists
-  var platform_full = process.platform+'-'+process.arch;
-  binding = require(__dirname + '/precompiled/'+platform_full+'/binding');
-}
-if (binding === null) {
-  throw new Error('Cannot find appropriate binary library for node-sass');
+  try {
+    fs.realpathSync(modPath + '.node');
+    binding = require(modPath);
+  } catch (ex) {
+    // No binary!
+    throw new Error('`'+ modPath + '.node` is missing. Try reinstalling `node-sass`?');
+  }
 }
 
 var SASS_OUTPUT_STYLE = {

scripts/prepublish.sh

+#!/bin/bash
+
+DIRECTORY="../node-sass-binaries"
+
+if [ "$CI" == "true" ]; then
+	echo "Skipping prepublish on CI builds";
+elif [ -d "$DIRECTORY" ]; then
+	echo "Copying binaries to bin"
+	cp $DIRECTORY/*-v8-* bin/ -R
+else
+	echo "Skipping bin copy. Please clone https://github.com/andrew/node-sass-binaries for prebuilt binaries";
+fi
\ No newline at end of file