Convert a CSV file of url redirects into a redirect.conf file for use in Apache

convertCSV.js

/************************
--Usage
node covertCSV.js filename.csv > redirect.conf

CSV column A contains base URL and column B contains the Redirect URL. 
Generates redirects based off of unique GUID in query string if present.

************************/

var fs = require('fs');
var buffer = "";
var stream = fs.createReadStream(process.argv[process.argv.length - 1]);

stream.addListener('data', function(data){
	buffer += data.toString();
});

stream.addListener('end', function(){
	var parts = buffer.split('\r\n');
	var urlSplit = "";
	var uids = [], uid = "";
	for (var i = 0; i < parts.length; i++) {
		if (parts[i].length !== 0){
			var urls = parts[i].split(",");
			if (urls[0].search('uid=') != -1){
				uid = urls[0].match(/[0-9A-F]{8}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{16}/gi);
				if (uid != null)
					uids.push(uid);
			}
			else if (i !== 0){
				if( urls[0].search('vanityurl') !== -1){
					urls[0] = urls[0].replace(/\s|(http:\/\/www)/g,'');
					urlSplit = urls[0].split("/");
					console.log("RewriteCond %{HTTP_HOST} (.*?)" + urlSplit[0] + "$ [NC]");
					console.log("RewriteCond %{REQUEST_URI} ^/" + urlSplit[1] + "(.*)$  [NC]")
					console.log("RewriteRule ^(.*)$ "+ urls[1] + " [QSA,L,R=301]\n\r");
				} else {
					console.log("RewriteCond %{REQUEST_URI} ^" + urls[0].replace(/\s/g,'') + "(.*)$ [NC]\n\r");
					console.log("RewriteRule ^/(.*) " + urls[1].replace(/ /g,'') + "%1 [R=301,L]\n\r");
				}

			}
		}
	};
	if (uids.length){
		console.log("RewriteCond %{HTTP_HOST} .*?www.examplevanityurl.com$ [NC]");
		console.log("RewriteCond %{QUERY_STRING} uid=" + uids.join("|") + "[NC]");
		console.log("RewriteRule ^(.*)$ www.example.vanity.com [QSA,L,R=301]");
	}
});