Converts a file to utf-8 in node.js

convert_to_utf8.js

var fs = require('fs')

if (!process.argv[2]) {
	console.log('Please specify a path')
} else {
	fs.stat(process.argv[2], function(error, stats) {
		if (error) throw error

		if (stats.isDirectory()) {
			console.log('Now starting conversion...')
			convertFolder(process.argv[2])
		} else {
			console.log('Now starting conversion...')
			convertFile(process.argv[2])
		}
	})
}

function convertFolder(path) {
	console.log('Convert everything in folder', path)
	fs.readdir(path, function(error, files) {
		if (error) throw error

		files.forEach(function(filename) {
			fs.stat(path + '/' + filename, function(error, stats) {
				if (error) throw error

				if (stats.isDirectory()) {
					convertFolder(path + '/' + filename)
				} else {
					convertFile(path + '/' + filename)
				}
			})
		})
	})
}

function convertFile(path) {
	console.log('Convert file', path)
	fs.readFile(path, {
		encoding: 'utf8'
	}, function(error, content) {
		if (error) throw error

		fs.writeFile(path, content, {
			encoding: 'utf8'
		}, function(error) {
			if (error) throw error

			console.log('Successfully converted', path)
		})
	})
}