Jakefile.js

desc('Install required npm modules');
task('install-npm-depends', [], function () {

	// Get npm programatically and the fs module
	var exec = require('child_process').exec;
	
	exec("npm install", function (error, stdout, stderr) {
		if (error !== null) {
			console.log(error.message);
			throw error;
		} else {
			console.log(stdout);
			complete();
		}
	});


}, true);

// Initialise properties
var properties = null,
		versionedPath = null,
		gitPath = null,
		livePath = null;

desc('Loads in properties file');
task('load-props', ["install-npm-depends"], function() {

	console.log("Attempting to read in build properties");
	
	var fs = require("fs");
	
	// Read in and parse build properties
	properties = JSON.parse(fs.readFileSync('config/props.json'));
	
	// Print the properties to the console
	console.log("Properties:");
	for (var p in properties) {
		if (properties.hasOwnProperty(p)) {
			console.log(p + properties[p]);
		}
	}
	
	// Build some paths from properties for use later on
	versionedPath = properties.siteLocation + properties.state + "/.versions/" +
									properties.siteName + "@" + properties.version;
	livePath = properties.siteLocation + properties.state + "/" + properties.siteName;

	gitPath = "~/" + properties.siteName + ".net.git";

	console.log("Properties read successfully");

	complete();

}, true);

desc('Create versioned site directory');
task('create-versioned-dir', ["load-props"], function() {
	
	console.log("Attempting to create versioned directory");

	var exec = require('child_process').exec,
			mkdir;
	
	// Create versioned directory
	mkdir = exec("mkdir " + versionedPath, function (error, stdout, stderr) {
		if (error !== null) {
			console.log(error.message);
			throw error;
		} else {
			console.log("Versioned directory created successfully - " + versionedPath);
			complete();
		}
	});

}, true);

desc('Move files to desired location');
task('move-files', ["load-props", "create-versioned-dir"], function() {

	console.log("Attempting to moved files into desired location");

	var exec = require('child_process').exec,
			rsync;
	
	// Move files from temporary directory to versioned directory just created
	rsync = exec("rsync -av . " + versionedPath, function (error, stdout, stderr) {
		if (error !== null) {
			console.log(error.message);
			throw error;
		} else {
			console.log("Files moved successfully");
			complete();
		}
	});

}, true);

desc('Symlink new version');
task('symlink-live', ["load-props", "create-versioned-dir", "move-files"], function() {

	console.log("Attempting to make a symbolic link");

	var exec = require('child_process').exec,
			ln;
	
	// Symlink to the versioned directory
	var command = "rm " + livePath + " && ln -sv " + versionedPath + " " + livePath;
	console.log ("running: "+command);
	ln = exec("rm " + livePath + " && ln -sv " + versionedPath + " " + livePath, function (error, stdout, stderr) {
		if (error !== null && error.message.indexOf("No such file or directory") === -1) {
			console.log(error.message);
			throw error;
		} else {
			console.log(error + " "+ stdout+ " " + stderr);
			console.log("Symlink created");
			complete();
		}
	});



}, true);

desc('Puts the development site live');
task('default', ["load-props", "create-versioned-dir", "move-files", "symlink-live"], function() {
	console.log("Attempting to kill old instance of site");

	var exec = require('child_process').exec,
			spawn = require('child_process').spawn,
			upstart;
	
	// Stop the old version of the app and start the new version with monit
	var command = "sudo monit stop " + properties.siteName + "-" + properties.state;
	console.log("About to run: "+command);
	exec("whoami", function (error, stdout, stderr) {
		if (error) {
			throw error;
		} else {
			console.log(error, stdout, stderr);
		}
	});
	exec("ln -sv "+gitPath+" " + livePath+"/.git", function (error, stdout, stderr) {
		if (error) {
			throw error;
		} else {
			console.log(error, stdout, stderr);
		}
	});
	exec(command, function (error, stdout, stderr) {

		if (error) {
			throw error;
		} else {
			exec("sudo monit start " + properties.siteName + "-" + properties.state, function (error, stdout, stderr) {
				console.log(error, stdout, stderr);
				if (error) {
					throw error;
				} else {
					complete();
				}
			});
		}

	});

});