var linkAggregatedLayoutContent = function()

in make-util.js [777:823]
33 lines of code
9 McCabe index (conditional complexity)

var linkAggregatedLayoutContent = function (sourceRoot, destRoot, release, commit) {
    assert(sourceRoot, 'sourceRoot');
    assert(destRoot, 'destRoot');
    assert(commit, 'commit');
    console.log();
    console.log(`> Linking ${path.basename(sourceRoot)}`);
    mkdir('-p', destRoot);

    // process each file/folder within the source root
    fs.readdirSync(sourceRoot).forEach(function (itemName) {
        // skip files
        var taskSourcePath = path.join(sourceRoot, itemName);
        if (!fs.statSync(taskSourcePath).isDirectory()) {
            return;
        }

        // load the source task.json
        var sourceTask = JSON.parse(fs.readFileSync(path.join(taskSourcePath, 'task.json')));
        if (typeof sourceTask.version.Major != 'number' ||
            typeof sourceTask.version.Minor != 'number' ||
            typeof sourceTask.version.Patch != 'number') {

            fail(`Expected task.version.Major/Minor/Patch to be numbers (${taskSourcePath})`);
        }

        // determine the dest folder based on the major version
        var taskDestPath = path.join(destRoot, itemName + `__v${sourceTask.version.Major}`);

        if (test('-e', taskDestPath)) {
            // validate that a newer minor+patch does not exist in an older release
            // (newer releases should be linked first)
            var destTask = JSON.parse(fs.readFileSync(path.join(taskDestPath, 'task.json')));
            var sourceVersion = `${sourceTask.version.Major}.${sourceTask.version.Minor}.${sourceTask.version.Patch}`;
            var destVersion = `${destTask.version.Major}.${destTask.version.Minor}.${destTask.version.Patch}`;
            if (semver.gt(sourceVersion, destVersion)) {
                fail(`Expected minor+patch version for task already in the aggregate layout, to be greater or equal than non-aggregated layout being merged. Source task: ${taskSourcePath}`);
            }
        }
        else {
            // create a junction point
            fs.symlinkSync(taskSourcePath, taskDestPath, 'junction');

            // write a human-friendly metadata file
            fs.writeFileSync(taskDestPath + (release ? `_m${release}` : '') + `_${commit}`, '');
        }
    });
}