icy-rip/lib/progress.js

SHOUTcast/Icecast stream recorder

function repeat(s, times) {
    var all = '';
    for (var i = 0; i < times; i++) {
        all += s;
    }
    return all;
}
var ERASE = String.fromCharCode(27) + '[2K';
var counter = 1;
var lastLineLength = 0;
var reverse = false;
function task(msg) {
    var back = ERASE + repeat('\b', lastLineLength);
    var line = msg + ' ' + repeat('.', counter);
    process.stdout.write(back);
    process.stdout.write(line);
    counter += reverse ? -1 : 1;
    if (counter > 20 || counter < 1) {
        reverse = !reverse;
    }
    lastLineLength = line.length;
}
exports.task = task;