checkSymlinks

#!/usr/bin/env node

// first entry is the source (relative to the destination)
// second entry is the destination

var path = require('path');
var fs = require('fs');

var isWindows = require('os').platform() == 'win32';

var base = path.join(path.dirname(__filename), './');

exports.check = function (cb) {
	var cwd = process.cwd();
	process.chdir(__dirname);
	var links = require('./links.json');
	
	// Linking to newly created project, the name should be changed
	links[0][1] = links[0][1].replace('AndroidSeed', process.argv[2]);
	links[0][1] = links[0][1].replace('scheme', process.argv[3]);
	
	var i = 0;
	var nextLink = function () {
		var link = links[i];
		if (!link) {
			process.chdir(cwd);
			cb && cb();
		} else {
			++i;
			var dest = path.join(base, link[1]);
			//if we are on windows then the src path needs to be provided as a absolute path
			//in this case the link sources are provided relative to the directory that the destination of the link resides
			if (isWindows) {
				var src = path.join(dest,'\\..\\' + link[0]);
			} else {
				var src = link[0];
			}
			createLink(src, dest, nextLink);
		}
	}
	nextLink();
};

function createLink (src, dest, next) {
	console.log('creating link to', dest);
	var cwd = process.cwd();
	process.chdir(__dirname);

	try {
		makeDirsSync(path.dirname(dest));
	} catch (e) {
		return next(e);
	}
	try {
		fs.unlinkSync(dest);
	} catch (e) {
		//do nothing with this error
	}
	fs.symlink(src, dest, 'junction', next);
}

// based on https://gist.github.com/1053383
function makeDirsSync (dir) {
	// normalize and resolve path to an absolute one:
	// (path.resolve automatically uses the current directory if needed)
	dir = path.resolve(path.normalize(dir));

	// try to create this directory:
	try {
		// XXX hardcoding recommended file mode of 511 (0777 in octal)
		// (note that octal numbers are disallowed in ES5 strict mode)
		fs.mkdirSync(dir, 511);
	} catch (e) {
		// and if we fail, base action based on why we failed:
		switch (e.code) {

			// base case: if the path already exists, we're good to go.
			// TODO account for this path being a file, not a dir?
			case 'EEXIST':
				return;

			// recursive case: some directory in the path doesn't exist, so
			// make this path's parent directory.
			case 'ENOENT':
				fs.mkdirSync(path.dirname(dir));
				fs.mkdirSync(dir);
				break;

			default:
				throw e;
		}
	}
}


// Command line invocation.
if (require.main === module) {
	exports.check();
}