Jesse and I will walk through the source code of the workflow plugin, highlights key abstractions and extension points, and discuss how they are put together. If you are interested in developing or retrofitting plugins to work with workflows, I think you’ll find this session interesting. The event will be on Google Hangout tomorrow. The time of the day is the same as usual office hours....

Over the past 30 days or so, the acceptance test project has made a great progress. This project consists of a reusable harness that can be used by plugin developers and users to write functional test cases. These tests can be run against Jenkins instances that are deployed in all sorts of different ways, and can interact with complex real fixtures. These tests can be...

This week I’m going to do an office hour on how to write an acceptance test in Jenkins acceptance test harness. The event is on Wednesday 11am PT. This new Selenium-based test harness is full of page objects and other abstractions that let you write blackbox integration tests on Jenkins and its plugins, as well as how they behave under various environments. Unlike our regular office...

Thanks to the kindness from Gliffy, we can now add diagrams to Wiki pages, in a way that enables collaborative edits. See more info, including a sample diagram in a Wiki page....

[Editor’s Note: This is a guest post from Jenkins community member Tom Rini] Alternatively: How to make your parallel jobs kick one last job at the end Many of us have had occasion to think: "I could make this project build quicker if I could just run parts in parallel and then one final job to wrap it up." Well, good news! Jenkins is here to help!...

Today, I’d highlight two recent improvements to the label and matrix projects. When you have multiple agents in your Hudson build farm, you can use labels to classify agents by their capability/environment/architecture/etc. For example, your one agent might have “32bit” and “windows” label, while another one might have “linux”, “ubuntu”, and “64bit.” (with plugins like <a href=`"https://wiki.jenkins.io/display/JENKINS/PlatformLabeler+Plugin`">platform-labeler plugin</a>, you can attach labels automatically, too.) Or...

Commits often come in a burst. This seems to happen mainly for two reasons — people sometimes forget to commit some files, and in the tranquility of waiting for your SCM to finish a commit, people sometimes realize the problems in the commit and they quickly make follow-up changes. The conventional wisdom is that the CI server should wait for the burst to finish before attempting...

For as long as Hudson’s had a plugin model and development community, we’ve provided source code and binary hosting through our Subversion repo at java.net. But what if you’re a plugin developer and you don’t want to use Subversion? Well, we have an alternative for your source code: host it with Hudson on GitHub. To get this in place, send an email to dev@hudson.dev.java.net (or...

Over the past year Hudson has grown tremendously, both within the Java community and outside of it. Partially thanks to (Titus Brown)'s PyCon 2010 Atlanta coverage of continuous integration for Python (which we’ve covered before), Hudson has made great strides within the Python community as well. In my experience, the majority of Python developers are not using Hudson to build anything, unless they have...

At the first Bay Area Hackathon in mid-2009, the topic du jour was "https://wiki.jenkins.io/display/JENKINS/Designing+pre-tested+commit[pre-tested commits]." As potential implementations of the concept were discussed over burgers from Brickhouse in downtown San Francisco, we realized as a group a few things: first, those burgers were delicious, but more importantly: pre-testing commits is very-SCM dependent and involves a lot of moving parts. One of the positive changes...