exports.getParent = function()

in src/browser/FileProxy.js [428:462]

• 24 lines of code
• 8 McCabe index (conditional complexity)

        exports.getParent = function (successCallback, errorCallback, args) {
            if (typeof successCallback !== 'function') {
                throw Error('Expected successCallback argument.');
            }

            let fullPath = args[0];
            // fullPath is like this:
            // file:///persistent/path/to/file or
            // file:///persistent/path/to/directory/

            if (fullPath === DIR_SEPARATOR || fullPath === pathsPrefix.cacheDirectory ||
                fullPath === pathsPrefix.dataDirectory) {
                successCallback(fs_.root);
                return;
            }

            // To delete all slashes at the end
            while (fullPath[fullPath.length - 1] === '/') {
                fullPath = fullPath.substr(0, fullPath.length - 1);
            }

            const pathArr = fullPath.split(DIR_SEPARATOR);
            pathArr.pop();
            const parentName = pathArr.pop();
            const path = pathArr.join(DIR_SEPARATOR) + DIR_SEPARATOR;

            // To get parent of root files
            const joined = path + parentName + DIR_SEPARATOR;// is like this: file:///persistent/
            if (joined === pathsPrefix.cacheDirectory || joined === pathsPrefix.dataDirectory) {
                exports.getDirectory(successCallback, errorCallback, [joined, DIR_SEPARATOR, { create: false }]);
                return;
            }

            exports.getDirectory(successCallback, errorCallback, [path, parentName, { create: false }]);
        };