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Wikimedia Release Engineering Team Blog

Production Excellence: October 2019

Written by Krinkle on Fri, Nov 8, 5:57 AM.

How’d we do in our strive for operational excellence last month? Read on to find out!

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Production Excellence: September 2019

Written by Krinkle on Oct 24 2019, 11:25 PM.

How’d we do in our strive for operational excellence last month? Read on to find out!

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Integrating code coverage metrics with your development workflow

Written by kostajh on Oct 9 2019, 10:04 AM.

In Changes and improvements to PHPUnit testing in MediaWiki, I wrote about efforts to help speed up PHPUnit code coverage generation for local development.[0] While this improves code coverage generation time for local development, it could be better.

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Introducing Phatality

Written by mmodell on Oct 7 2019, 12:36 AM.

This past week marks the release of a little tool that I've been working on for a while. In fact, it's something I've wanted to build for more than a year. But before I tell you about the solution, I need to describe the problem that I set out to solve.

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Production Excellence: August 2019

Written by Krinkle on Oct 3 2019, 4:27 AM.

How’d we do in our strive for operational excellence in August? Read on to find out!

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Production Excellence: July 2019

Written by Krinkle on Aug 30 2019, 8:08 PM.

How’re we doing on that strive for operational excellence? Read this first anniversary edition to find out!

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Production Excellence: June 2019

Written by Krinkle on Jul 31 2019, 6:44 PM.

How’d we do in our strive for operational excellence last month? Read on to find out!

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Changes and improvements to PHPUnit testing in MediaWiki

Written by kostajh on Jul 16 2019, 4:13 AM.

Building off the work done at the Prague Hackathon (T216260), we're happy to announce some significant changes and improvements to the PHP testing tools included with MediaWiki.

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Production Excellence: May 2019

Written by Krinkle on Jul 1 2019, 6:56 PM.

How’d we do in our strive for operational excellence last month? Read on to find out!

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Production Excellence: April 2019

Written by Krinkle on May 31 2019, 7:21 PM.

How’d we do in our strive for operational excellence last month? Read on to find out!

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Introducing the codehealth pipeline beta

Written by kostajh on May 14 2019, 8:29 PM.

After many months of discussion, work and consultation across teams and departments[0], and with much gratitude and appreciation to the hard work and patience of @thcipriani and @hashar, the Code-Health-Metrics group is pleased to announce the introduction of the code health pipeline. The pipeline is currently in beta and enabled for GrowthExperiments, soon to be followed by Notifications, PageCuration, and StructuredDiscussions. (If you'd like to enable the pipeline for an extension you maintain or contribute to, please reach out to us via the comments on this post.)

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Production Excellence: March 2019

Written by Krinkle on Apr 21 2019, 6:51 PM.

How’d we do in our strive for operational excellence last month? Read on to find out!

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Quibble hibernated, it is time to flourish

Written by hashar on Mar 28 2019, 11:48 AM.

Writing blog is neither my job nor something that I enjoy, I am thus late in the Quibble updates. The last one Blog Post: Quibble in summer has been written in September 2018 and I forgot to publish it until now. You might want to read it first to get a glance about some nice changes that got implemented last summer.

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Quibble in summer

Written by hashar on Mar 28 2019, 10:42 AM.

Note: this post has been published on 03/28 but has been originally written in September 2018 after Quibble 0.0.26 and never got published.

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CI working group report, with recommendations of new tools to try

Written by LarsWirzenius on Mar 25 2019, 6:29 PM.

The working group to consider future CI tooling for Wikimedia has finished and produced a report. The report is at https://www.mediawiki.org/wiki/Wikimedia_Release_Engineering_Team/CI_Futures_WG/Report and the short summary is that the release engineering team should do prototype implementations of Argo, GitLab CI/CD, and Zuul v3.

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Production Excellence: February 2019

Written by Krinkle on Mar 21 2019, 7:11 PM.

How’d we do in our strive for operational excellence? Read on to find out!

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Help my CI job fails with exit status -11

Written by hashar on Mar 21 2019, 9:52 AM.

For a few weeks, a CI job had PHPUnit tests abruptly ending with:

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Work progresses on CI tool evaluation

Written by LarsWirzenius on Mar 8 2019, 4:59 PM.

The working group to consider future tooling for continuous integration is making progress (see previous blog post J148 for more information). We're looking at and evaluating alternatives and learning of new needs within WMF.

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Choosing tools for continuous integration

Written by LarsWirzenius on Feb 28 2019, 6:27 PM.

The Release Engineering team has started a working group to discuss and consider our future continuous integration tooling. Please help!

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Production Excellence: January 2019

Written by Krinkle on Feb 13 2019, 3:53 AM.

How’d we do in our strive for operational excellence last month? Read on to find out!

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Production Excellence: December 2018

Written by Krinkle on Jan 22 2019, 2:54 AM.

How’d we do in our strive for operational excellence last month? Read on to find out!

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Gerrit now automatically adds reviewers

Written by hashar on Jan 17 2019, 4:53 PM.

Finding reviewers for a change is often a challenge, especially for a newcomer or folks proposing changes to projects they are not familiar with. Since January 16th, 2019, Gerrit automatically adds reviewers on your behalf based on who last changed the code you are affecting.

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Code Health Metrics and SonarQube

Written by zeljkofilipin on Jan 10 2019, 2:54 PM.
  1. Code Health
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Production Excellence: November 2018

Written by Krinkle on Dec 12 2018, 4:40 AM.

How’d we do in our strive for operational excellence last month? Read on to find out!

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Production Excellence: October 2018

Written by Krinkle on Nov 28 2018, 5:47 PM.

How’d we do in our strive for operational excellence last month? Read on to find out!

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Incident Documentation: An Unexpected Journey

Written by zeljkofilipin on Nov 22 2018, 6:06 PM.

The Release Engineering team wants to continually improve the quality of our software over time. One of the ways in which we hoped to do that this year is by creating more useful Selenium smoke tests. (From now on, test will be used instead of Selenium test.) This blog post is about how we determined where the tests should focus and the relative priority.

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Bring in 'da noise, bring in defunct. It's a zombie party!

Written by dduvall on Nov 16 2018, 7:22 PM.

Halloween is a full two weeks behind us here in the United States, but it's still on my mind. It happens to be my favorite holiday, and I receive it both gleefully and somberly.

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Wikimedia Release Engineering's 1st Annual Developer Satisfaction Survey

Written by zeljkofilipin on Nov 7 2018, 4:02 PM.
NOTE: The survey is now closed
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Production Excellence: September 2018

Written by Krinkle on Sep 25 2018, 6:41 PM.

How’d we do in our strive for operational excellence last month? Read on to find out!

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An introduction to Task Types in Phabricator

Written by mmodell on Sep 20 2018, 5:22 PM.

This blog post will describe a bit about how we are utilizing the "Task Types" feature in Phabricator to facilitate better tracking of work and to streamline workflows with custom fields. Additionally, I will be soliciting feedback about potential use-cases which could potentially take further advantage of this feature.

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mediawiki_selenium 1.8.1 Ruby Gem Released

Written by zeljkofilipin on Jun 14 2018, 3:05 PM.

It has been a while since the last mediawiki_selenium release! 💎

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Quibble in May

Written by hashar on Jun 1 2018, 8:36 PM.

[Quibble] is the new test runner for MediaWiki (see the intro Blog Post: Introducing Quibble). This post is to give an update of what happened during May 2018.

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Technical Debt - The Contagion Effect

Written by Jrbranaa on May 24 2018, 11:16 PM.

One particularly interesting topic discussed during the Hackathon Technical Debt session (T194934) was that of the contagious aspect of technical debt. Although this makes sense in hindsight, it's not something that I had really given much thought to previously.

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Run Selenium tests using Quibble and Docker

Written by zeljkofilipin on May 2 2018, 1:46 PM.

Dependencies are Git Python 3, and Docker Community Edition (CE).

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Introducing Quibble

Written by hashar on Apr 30 2018, 9:09 AM.

Running all tests for MediaWiki and matching what CI/Jenkins is running has been a constant challenge for everyone, myself included. Today I am introducing Quibble, a python script that clone MediaWiki, set it up and run test commands.

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Selenium tests in Node.js project retrospective

Written by zeljkofilipin on Mar 26 2018, 2:28 PM.

I have been working on the project with more or less focus on it since 2015. Maybe the easiest way to follow the project is by taking a look at a few epic tasks:

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Phabricator Updates for February 2018

Written by mmodell on Feb 15 2018, 7:55 AM.

This is a digest of the updates from several weeks of changelogs which are published upstream. This is an incomplete list as I've cherry-picked just the changes which I think will be of significant interest to end-users of Wikimedia's phabricator. Please see the upstream changelogs for a detailed overview of everything that's changed recently.

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Selenium Ruby framework deprecated

Written by zeljkofilipin on Oct 30 2017, 1:44 PM.

This is your friendly but final warning that we are replacing Selenium tests written in Ruby with tests in Node.js. There will be no more reminders. Ruby stack will no longer be maintained. For more information see T139740 and T173488.

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Tech talk: Selenium tests in Node.js

Written by zeljkofilipin on Oct 27 2017, 12:04 PM.

Željko Filipin, Engineer (Contractor) from Release Engineering team. That's me! 👋

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Selenium Ruby framework deprecation (September)

Written by zeljkofilipin on Sep 25 2017, 3:27 PM.

Originally an email sent on September 25 2017 to qa, engineering and wikitech-l mailing lists.

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Selenium Ruby framework deprecation

Written by zeljkofilipin on Sep 25 2017, 3:14 PM.

Originally an email sent on August 23 2017 to qa, engineering and wikitech-l mailing lists.

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Selenium tests in Node.js

Written by zeljkofilipin on Sep 25 2017, 2:57 PM.

Originally an-email sent on April 3 2017 to qa, engineering and wikitech-l mailing lists.

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New feature: Embed videos from Commons into Phabricator markup

Written by mmodell on Jun 1 2017, 11:49 PM.

I just finished deploying an update to Phabricator which includes a simple but rather useful feature:

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Sponsored Phabricator Improvements

Written by mmodell on Jul 27 2016, 10:44 AM.

In T135327, the WMF Technical Collaboration team collected a list of Phabricator bugs and feature requests from the Wikimedia Developer Community. After identifying the most promising requests from the community, these were presented to Phacility (the organization that builds and maintains Phabricator) for sponsored prioritization.

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Code Review Office Hours

Written by mmodell on May 9 2016, 9:50 PM.

Starting Thursday May 12th, 13:00 PDT ( 20:00 GMT ) we will be having the first weekly Code Review office hours on freenode IRC in the #wikimedia-codereview channel.

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What's new: Lots of improvements on phabricator.wikimedia.org

Written by mmodell on Feb 23 2016, 12:23 AM.

Not a lot has changed for Wikimedia's instance of Phabricator over the past few months. That's because a lot has been happening behind the scenes, as well as upstream at Phacility. Members of the Release-Engineering-Team and Team-Practices group have been working since December 2015 to integrate various upstream changes, however, nothing was released to our production instance because there were so many important features that were in-progress and not yet fully usable. Additionally, we had to figure out exactly how these features would fit with the specific needs of our project and test a lot of functionality to be sure that we would not break anyone's workflows.

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About Doing the needful

Occasional updates from the Release-Engineering-Team