rorrim

#!/usr/bin/env node
var fs = require('fs'),
	 server = require('./server').app,
	 r = require('./lib'),
	 optimist = require('optimist')
	 			.usage("Serve local cache of online content.\nUsage: $0")
				.boolean('t')
				.alias('t', 'test')
				.describe('t', 'Run the hoopty tests')
				.alias('i', 'install')
				.describe('i', 'Install new file into rorrim folder -- Not implemented yet')
				.boolean('l')
				.alias('l', 'ls')
			  	.alias('l', 'list')
				.describe('l', 'List installed files')
				.boolean('h')
				.alias('h', 'help')
				.alias('h', '?')
				.describe('h', 'Show this usage info'),
	argv = optimist.argv;

if(argv.help){
	optimist.showHelp();
	process.exit(0);
}

process.title = "rorrim";
r.checkInit();
r.backupHostFile();

if(argv.test){ //Begin hoopty testing
	console.log("Testing empty array handling of writeHostFile");
	r.writeHostFile([]);
	r.revertHostFile();
	console.log("  done with 'empty array test'\n");

	console.log("r.walkRorrimFolder():");
	console.log(r.walkRorrimFolder());
	r.writeHostFile(r.walkRorrimFolder());
	console.log("Result after walkRorrimFolder:\n" + fs.readFileSync(r.hostfile, 'utf8'));
	r.revertHostFile();

	r.writeHostFile('cdnjs.cloudflare.com');
	console.log("Result after call with 'cdnjs.cloudflare.com':\n" + fs.readFileSync(r.hostfile, 'utf8'));
	r.revertHostFile();
}
if(argv.install){
	if(argv.install === true){
		optimist.showHelp();
		process.exit(1);
	}
	r.install(argv.install);
	//process.exit(0);
}
if(argv.list){
	console.log(r.walkRorrimFolder());
	process.exit(0);
}

try {
	server.listen('80');
} catch(e) {
	if(e.code == 'EACCES'){
		console.log("It looks like you need root privileges to start a server on port 80.\n" +
						 "Try again with `sudo rorrim`");
		r.revertHostFile();
		process.exit(13);
	} else {
		r.revertHostFile();
		throw e;
	}
}

process.on('SIGINT', function(){
	//If we get SIGINT, clean up after ourselves
	console.log("Caught SIGINT");
	r.revertHostFile();
	server.close();
	process.exit();
});

process.on('uncaughtException', function(err){
	try{
		console.warn("Uh Oh! uncaughtExeption! Lemme try to revert your hostfile");
		r.revertHostFile();
	} catch(e){
		console.warn("Looks like something really bad happened!\nHere's your original hostfile:\n" + r.origHostString);
	}
	throw err;
});
// vim: filetype=javascript