Build project periodically only if changes are found in the repository

user_112671 0
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I have the following setup active and working:

  • Jenkins with Git and Sonar plugins
  • One jenkins job ( project ) which polls Git each minute
  • One jenkins job ( project-sonar ) which polls git each 24 hours

Both jobs share the same git repository.

This allows me to build my project for each commit and then each day, only if the project has changed, run the Sonar analysis.

I've recently set up the git repository to send notifications to Jenkins when a project has changed, as per Push notifications from repository . This builds both projects immediately, but I want only the quick ( project ) job to build. If I move the project-sonar to be built periodically, the sonar analysis will be run even if there are no code changes, which is wasteful.

How can I retain

  • immediate build for the project build
  • daily build for for project-sonar build

?

sonarqube jenkins continuous-integration git
3 Answers

I have my regular project and a second one called "project-daily" that runs daily.

"Project" takes a parameter named "RELEASE_TAG", which is passed as the branch specifier in the git section. The git plugin will also allow a tag to be specified here.

When "project" starts, it saves $COMMIT to a file named latest/$PROJECT.$BRANCH. ($BRANCH is set to $RELEASE_TAG, unless $RELEASE_TAG is a tag, in which case $BRANCH is set to "master".) This file is read by "project-daily".

"Project-daily" is a pipeline script. It does not have a repository. To save space, it runs "git clone --bare ...", and then "git log -n 1 --format=format:%H daily". It reads "latest/$PROJECT.daily" to get the latest build (attempt). If that commit is different than the "git log" output, then it calls "build job:'project'", with parameter "RELEASE_TAG" set to "daily".

We push our working code to the daily branch. When it's time for a release build, we merge to master, tag it, and then run "project" manually with the tag (which specifies the version).

user_25486680
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