npm-stiv/lib/backup.js

Converts stars in package.json file to current versions of modules;

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

var make = function(src){
    var backupPrefix = 'bck_';
    var dest = path.dirname(src) + '/' + backupPrefix + path.basename(src);

        fs.createReadStream(src)
            .pipe(fs.createWriteStream(dest));
}

module.exports.make = make;