var getExternals = function()

in make-util.js [579:619]

• 28 lines of code
• 3 McCabe index (conditional complexity)

var getExternals = function (externals, destRoot) {
    assert(externals, 'externals');
    assert(destRoot, 'destRoot');

    // .zip files
    if (externals.hasOwnProperty('archivePackages')) {
        var archivePackages = externals.archivePackages;
        archivePackages.forEach(function (archive) {
            assert(archive.url, 'archive.url');
            assert(archive.dest, 'archive.dest');

            // download and extract the archive package
            var archiveSource = downloadArchive(archive.url);

            // copy the files
            var archiveDest = path.join(destRoot, archive.dest);
            mkdir('-p', archiveDest);
            cp('-R', path.join(archiveSource, '*'), archiveDest)
        });
    }

    // external NuGet V2 packages
    if (externals.hasOwnProperty('nugetv2')) {
        var nugetPackages = externals.nugetv2;
        nugetPackages.forEach(function (package) {
            // validate the structure of the data
            assert(package.name, 'package.name');
            assert(package.version, 'package.version');
            assert(package.repository, 'package.repository');
            assert(package.cp, 'package.cp');
            assert(package.cp, 'package.cp.length');

            // download and extract the NuGet V2 package
            var url = package.repository.replace(/\/$/, '') + '/package/' + package.name + '/' + package.version;
            var packageSource = downloadArchive(url, /*omitExtensionCheck*/true);

            // copy specific files
            copyGroups(package.cp, packageSource, destRoot);
        });
    }
}