Hi Jean-Marcel,
Good luck with the book.
It's topical for me.
I've been trying to do some learning about CI (specifically with Jenkins). One thing I saw in your book is you have a chapter on writing a Plugin for jenkins.
Is this a really typical thing to do in CI, having to write a custom plugin? I thought CI and jenkins was more of a plug-in play job. Connect SVN, configure the jUnit plugin, configure the code coverage plugin, etc etc.
And I'm mostly interested in Jenkins, am I going to get anything out of the CircleCI/other CI tool chapters?