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Mozilla: ESLint, The Things Gateway, Distributed Teams, Uplift, MDN

Submitted by Roy Schestowitz on Wednesday 3rd of October 2018 06:53:33 PM Filed under
Moz/FF
  • What’s next for ESLint on Firefox Source Code?

    Around 2015 a couple of projects had started using ESLint in mozilla-central. In the last quarter of 2015, there was a big push to enable ESLint for browser/ and toolkit/ – the two main directories containing the javascript source behind Firefox.

    Since then, we have come a long way. We have commands and hooks for developers to use, checks during the review phase, and automatic tests that run against our review tools and our continuous integration branches. Not only that, but we’ve also expanded our coverage to more directories, and expanded the amount of rules that are enabled.

    As we’ve done this work, we’ve caught lots of bugs in the code or in our tests (there’s much more than just those links). Some of those have been small, some have been user facing issues. There are also now the countless potential bugs that we don’t get to see where ESLint catches issues for us before they even hit the core source trees. All this helps to save developer time and leaves more for fixing bugs and implementing new features.

  • The Things Gateway - A Pythonic Rule System

    In my last post, I talked about the features and limitations of the Rules System within the Things Gateway by Mozilla graphical user interface. Today, I'm going to show an alternate rule system that interacts with the Things Gateway entirely externally using the Web Thing API. The Web Thing API enables anyone armed with a computer language that can use Web Sockets to create entirely novel applications or rules systems that can control the Things Gateway.

    In the past few months, I've blogged several times about controlling the Things Gateway with the Web Thing API using Python 3.6. In each one was a stand alone project, opening and managing Web Sockets in an asynchronous programming environment. By writing these projects, I've explored both functional and object oriented idioms to see how they compare. Now with some experience, I feel free to abstract some of the underlying common aspects to create a rule engine of my own.

  • Distributed Teams: Regional Holidays

    Today is German Unity Day, Germany’s National Day. Half of my team live in Berlin, so I vaguely knew they wouldn’t be around… but I’d likely have forgotten if not for a lovely tradition of “Holiday Inbound” emails at Mozilla.

    Mozilla is a broadly-distributed organization with employees in dozens of countries worldwide. Each of these countries have multiple days off to rest or celebrate. It’s tough to know across so many nations and religions and cultures exactly who will be unable to respond to emails on exactly which days.

  • Uplift forms get a refresh

    Firefox is shipped using a train model. Without going into too much details, this means that we maintain several channel in parallel (Nightly, Beta, Release and ESR). Normal changes happen in Nightly. When a change needs to be cherry-picked from Nightly to another branch, the process is called “Uplift”.

    Uplifting is a key tool in the Firefox release management world. When developers want to apply a patch from Nightly to another branch, they will use Bugzilla, answering some questions in a textarea.

  • A New Way to Support MDN

    Starting this week, some visitors may notice something new on the MDN Web Docs site, the comprehensive resource for information about developing on the open web.

    We are launching an experiment on MDN Web Docs, seeking direct support from our users in order to accelerate growth of our content and platform. Not only has our user base grown exponentially in the last few years (with corresponding platform maintenance costs), we also have a large list of cool new content, features, and programs we’d like to create that our current funding doesn’t fully cover.

    In 2015, on our tenth anniversary (read about MDN’s evolution in the 10-year anniversary post), MDN had four million active monthly users. Now, just three years later, we have 12 million. Our last big platform update was in 2013. By asking for, and hopefully receiving, financial assistance from our users – which will be reinvested directly into MDN – we aim to speed up the modernization of MDN’s platform and offer more of what you love: content, features, and integration with the tools you use every day (like VS Code, Dev Tools, and others), plus better support for the 1,000+ volunteers contributing content, edits, tooling, and coding to MDN each month.

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