Weekly Swift articles, podcasts and tips by John Sundell.

Using feature flags instead of feature branches

Published on 18 Jul 2018

Instead of using feature branches, I merge almost all of my code directly into master - and then I use feature flags to conditionally enable features when they're ready. That way I can avoid merge conflicts and keep shipping!

extension ListViewController {
    func addSearchIfNeeded() {
        // Rather than having to keep maintaining a separate
        // feature branch for a new feature, we can use a flag
        // to conditionally turn it on.
        guard FeatureFlags.searchEnabled else {
            return
        }

        let resultsVC = SearchResultsViewController()
        let searchVC = UISearchController(
            searchResultsController: resultsVC
        )

        searchVC.searchResultsUpdater = resultsVC
        navigationItem.searchController = searchVC
    }
}

Support Swift by Sundell by checking out this sponsor:

Magic Lasso Adblock
Magic Lasso Adblock

Magic Lasso Adblock: Block ads, trackers and pop-ups on your iPhone, iPad and Mac. Magic Lasso Adblock provides a 2.0x speed increase on common websites, improves your privacy by removing ad trackers and works with Safari across all devices. It’s as if Apple themselves had designed an ad blocker. Download for free today.