sample20newsgroups.js

include('fs-base');
var format = require('ringo/utils').format;

const ROOT = './20news-18828';
const MAX_FILES = 100;

list(ROOT).forEach(function (dir) {
    print('Dir:', dir);
    while (list(format('{}/{}', ROOT, dir)).length > MAX_FILES) {
        for each (var file in list(format('{}/{}', ROOT, dir))) {
            if (list(format('{}/{}', ROOT, dir)).length == MAX_FILES) break;
            if (Math.random() >= 0.5) {
                print('Removing:', file);
                remove(format('{}/{}/{}', ROOT, dir, file));
            }
        }
    }
});