var createAggregatedZip = function()

in make-util.js [953:1023]
49 lines of code
6 McCabe index (conditional complexity)

var createAggregatedZip = function (packagePath) {
    assert(packagePath, 'packagePath');

    // get branch/commit info
    var refs = getRefs();

    // initialize the aggregated layout
    // mark the layout with a version number.
    // servicing supports both this new format and the legacy layout format as well.
    console.log();
    console.log('> Creating aggregated layout');
    var aggregatedLayoutPath = path.join(packagePath, 'aggregated-layout');
    mkdir('-p', aggregatedLayoutPath);
    fs.writeFileSync(path.join(aggregatedLayoutPath, 'layout-version.txt'), '2');

    // link the tasks from the non-aggregated layout into the aggregated layout
    var nonAggregatedLayoutPath = path.join(packagePath, 'non-aggregated-layout');
    linkAggregatedLayoutContent(nonAggregatedLayoutPath, aggregatedLayoutPath, /*release:*/'', /*commit:*/refs.head.commit);

    // link the tasks from previous releases into the aggregated layout
    Object.keys(refs.releases)
        .sort()
        .reverse()
        .forEach(function (release) {
            // skip the current release (already covered by current build)
            if (release == refs.head.release) {
                return;
            }

            var commit = refs.releases[release].commit;
            var releaseLayout = getNonAggregatedLayout(packagePath, release, commit);
            linkAggregatedLayoutContent(releaseLayout, aggregatedLayoutPath, /*release:*/release, /*commit:*/commit);
        });

    // validate task uniqueness within the layout based on task GUID + major version
    var majorVersions = { };
    fs.readdirSync(aggregatedLayoutPath) // walk each item in the aggregate layout
        .forEach(function (itemName) {
            var itemPath = path.join(aggregatedLayoutPath, itemName);
            if (!fs.statSync(itemPath).isDirectory()) { // skip files
                return;
            }

            // load the task.json
            var taskPath = path.join(itemPath, 'task.json');
            var task = JSON.parse(fs.readFileSync(taskPath));
            if (typeof task.version.Major != 'number') {
                fail(`Expected task.version.Major/Minor/Patch to be a number (${taskPath})`);
            }

            assert(task.id, `task.id (${taskPath})`);
            if (typeof task.id != 'string') {
                fail(`Expected id to be a string (${taskPath})`);
            }

            // validate GUID + Major version is unique
            var key = task.id + task.version.Major;
            if (majorVersions[key]) {
                fail(`Tasks GUID + Major version must be unique within the aggregated layout. Task 1: ${majorVersions[key]}; task 2: ${taskPath}`);
            }

            majorVersions[key] = taskPath;
        });

    // create the aggregated tasks zip
    console.log();
    console.log('> Zipping aggregated tasks layout');
    var aggregatedZipPath = path.join(packagePath, 'pack-source', 'contents', 'Microsoft.TeamFoundation.Build.Tasks.zip');
    mkdir('-p', path.dirname(aggregatedZipPath));
    compressTasks(aggregatedLayoutPath, aggregatedZipPath);
}