[QBS] FileInfo relativePath function

[Сергей Лопатин]

Hi there!

I found strange issue in qbs fileinfo module:

function relativePath(base, rel)
{
    var basel = base.split('/');
    var rell  = rel.split('/');
    var i = 0;

    while (i < basel.length && i < rell.length && basel[i] == rell[i])
        i++;

    var j = i;
    var r = [];

    for (; i < basel.length; i++) // i really don't understand why we
need this line
        r.push('..');

    for (; j < rell.length; j++)
        r.push(rell[j]);

    return r.join('/');
}

I get some unexpected results:

print(FileInfo.relativePath(".","data/webview/terminator.png"));
../data/webview/terminator.png

print(FileInfo.relativePath("data/","data/webview/terminator.png"));
../webview/terminator.png

print(FileInfo.relativePath("data","data/webview/terminator.png")); //
works fine
webview/terminator.png

I don't understand why this function returns '../'.I could just delete
these lines:
for (; i < basel.length; i++)
       r.push('..');

but not sure if it's right and not break anything :)

Regards,
Sergei.