Function loadInfoDB

lib/course-db.js:161–205

(db, idName, parentDir, infoFilename, defaultInfo, schema, optionSchemaPrefix, courseInfo, logger, callback)

}

function loadInfoDB(db, idName, parentDir, infoFilename, defaultInfo, schema, optionSchemaPrefix, courseInfo, logger, callback) {
    // `cache` is an object with which we can cache information derived from course info
    // in between successive calls to `checkInfoValid`
    const cache = {};
    fs.readdir(parentDir, function(err, files) {
        if (ERR(err, callback)) return;

        async.each(files, function(dir, callback) {
            var infoFile = path.join(parentDir, dir, infoFilename);
            jsonLoad.readInfoJSON(infoFile, schema, function(err, info) {
                if (err && err.code && err.path && (err.code === 'ENOTDIR') && err.path === infoFile) {
                    // In a previous version of this code, we'd pre-filter
                    // all files in the parent directory to remove anything
                    // that may have accidentally slipped in, like .DS_Store.
                    // However, that resulted in a huge number of system calls
                    // that got really slow for large directories. Now, we'll
                    // just blindly try to read a file from the directory and assume
                    // that if we see ENOTDIR, that means the directory was not
                    // in fact a directory.
                    callback(null);
                    return;
                }
                if (ERR(err, callback)) return;
                jsonLoad.validateOptions(info, infoFile, optionSchemaPrefix, schemas, function(err, info) {
                    if (ERR(err, callback)) return;
                    info[idName] = dir;
                    info.directory = dir;
                    err = checkInfoValid(idName, info, infoFile, courseInfo, logger, cache);
                    if (ERR(err, callback)) return;
                    if (info.disabled) {
                        callback(null);
                        return;
                    }
                    info = _.defaults(info, defaultInfo);
                    db[dir] = info;
                    return callback(null);
                });
            });
        }, function(err) {
            if (ERR(err, callback)) return;
            logger.debug('successfully loaded info from ' + parentDir + ', number of items = ' + _.size(db));
            callback(null);
        });
    });
}

module.exports.loadFullCourse = function(courseDir, logger, callback) {
    var course = {