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CVS hooks work differently than SVN hooks. SVN hooks are triggered at different stages of the commit, while CVS hooks are triggered for each commit. For Fermi we modified the file /nfs/slac/g/glast/ground/javacvs/CVSROOT/loginfo (has to be checked out, don't modify it on the file system directly). Each time there is a commit we execute the script /nfs/slac/g/glast/ground/jenkins/post-commit-hook which touches a file in /nfs/slac/g/glast/ground/jenkins/jobs with the name of the module that was modified. We have then installed a cronjob on fermilnx-v07 that runs the script /nfs/slac/g/glast/ground/jenkins/launch_jenkins_builds that is responsible to launching the corresponding jobs in Jenkins.
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