Add cleanuptxtfile.js

For cleaning up text file that has been created by copying foobar2k
songs and pasting into notepad. (basically just removing '[]' and
everything in between :))

cleanuptxtfile.js

@@ -0,0 +1,44 @@
+// Clean up txt file that is created by copying foobar2k songs and pasting into notepad. (Basically just removing '[]' and everything in between :))
+// First arg is path to file
+
+const fs = require('fs');
+
+
+function argHandler(args){
+	let pathToTextFile = "";
+	switch (args[2]) {
+		case "--help":
+		case "-h":
+		case undefined:
+			printHelp();
+			break;
+		default:
+			pathToTextFile = args[2];
+			break; 
+	}
+	return pathToTextFile;
+}
+
+function printHelp(){
+	const helpText = `Usage:\n\tnode cleanuptxtfile.js <path_to_text_file>\n`;
+	process.stdout.write(helpText);
+	process.exit(0);
+}
+
+function fileNotFound(pathToTextFile) {
+	console.log(`FILE NOT FOUND: ${pathToTextFile}\n`)
+	process.exit(404)
+}
+
+function cleanFile(pathToTextFile) {
+	let file = fs.readFileSync(pathToTextFile).toString();
+	const regex = /(\[)(.*)(\])/gm
+	file = file.replace(regex, "");
+	fs.writeFileSync(`CLEANED.txt`, file);
+}
+
+let pathToTextFile = argHandler(process.argv);
+
+fs.existsSync(pathToTextFile) ? cleanFile(pathToTextFile) : fileNotFound(pathToTextFile)
+
+console.log(process.argv[2])