The Jenkins Continuous Integration and Testing project has been helping to improve the quality of &os;. Since the last status report, we have quickly found commits which caused build breakage or test failures. &os; developers saw these problems and quickly fixed them. Some of the highlights include:

• Ricky Gallagher wrote a script named portest, which can take a patch to the &os; ports tree as input, and can generate a sequence of commands to check out the ports tree from Subversion, apply the patch, and then invoke the poudriere script to build the affected part of the ports tree. Ricky consulted with Torsten Zühlsdorff on this.

  This script will be used later to test changes to the ports tree.

• &a.rodrigc; converted some Jenkins builds to use the Workflow plugin. Workflow is a plugin written by Jesse Glick and other developers at Cloudbees, the main company providing commercial support for Jenkins. With this plugin, a Jenkins job can be written in a Domain Specific Language (DSL) which is written in the Groovy scripting language. Workflow scripts are meant to provide sophisticated access to Jenkins functionality, in a simple scripting language. As Jenkins jobs get more complicated and have more interdependencies, using a DSL is easier for maintainability instead of creating Jenkins jobs via menus.

  &a.rodrigc; worked with Jesse Glick to identify and fix a problem with the Durable Task plugin used by the workflow plugin. This problem seemed to show up mostly on non-Linux platforms such as Linux and &os;.

• &a.eadler; worked with &a.rodrigc; to test a Jenkins plugin written by Aiden Scandella at Uber which integrates Phabricator and Jenkins. With this plugin, if someone submits a code review with Phabricator's Differential tool, a Jenkins build with this code change will be triggered. The Phabricator code review will be updated with the result of the build.

  &a.eadler; and &a.rodrigc; had some initial success testing this plugin using the &os; docs repository, but this plugin still has a lot of hardcoded dependencies specific to Uber's environment which make it difficult to use out of the box for &os;.

  Alexander Yerenkow submitted some patches upstream to fix some of these problems.

  This plugin still needs more work.

  &a.rodrigc; thinks that it might be better to write a workflow script to call Phabricator commands directly.

• &a.rodrigc; pushed fixes upstream to several plugins including:

  • SCM Sync configuration plugin
  • NodeLabel parameter plugin
  • Subversion plugin
  • Multiple SCMs plugin
  • Clang Scanbuild plugin

  &a.rodrigc; was granted commit access to SCM Sync configuration plugin, Multiple SCMs plugin, and Clang Scanbuild plugin.

• &a.lwhsu; set up multiple builds using jails on machines located at NYI and administered by the &os; Cluster Administrators. One of these builds included building for 64-bit ARM.

• Michael Zhilin fixed the Akuma library for FreeBSD. The Akuma library used by Jenkins to determine what command-line arguments were passed to a running process. To fix this, Michael invoked FreeBSD-specific sysctl() with KERN_PROC_ARGS to determine the arguments for a running pid.

  This fix allows a running Jenkins instance to restart itself after new plugins are installed.

• &a.jmmv; accepted a fix for Kyua from &a.rodrigc; to fix writing out XML characters to test report files.