Pipeline 'checkout scm' doing twice the job?

[Grégory Lureau]

Hi guys,

I'm start to use Jenkins Pipeline and my own is pretty simple for now and it's just using a simple checkout:

        stage('checkout') {

            checkout scm

        }

But in the logs I got

[Pipeline] checkout

Cloning the remote Git repository

Cloning repository https://github.com/<...>.git

 > /usr/bin/git init /var/lib/jenkins/workspace/<...> # timeout=10

Fetching upstream changes from https://github.com/<...>.git

 > /usr/bin/git --version # timeout=10

using GIT_ASKPASS to set credentials 

 > /usr/bin/git fetch --tags --progress https://github.com/<...>.git +refs/heads/*:refs/remotes/origin/*

 > /usr/bin/git config remote.origin.url https://github.com/<...>.git # timeout=10

 > /usr/bin/git config --add remote.origin.fetch +refs/heads/*:refs/remotes/origin/* # timeout=10

 > /usr/bin/git config remote.origin.url https://github.com/<...>.git # timeout=10

Fetching upstream changes from https://github.com/<...>.git

using GIT_ASKPASS to set credentials 

 > /usr/bin/git fetch --tags --progress https://github.com/<...>.git +refs/heads/*:refs/remotes/origin/*

 > /usr/bin/git config remote.origin1.url https://github.com/<...>.git # timeout=10

Fetching upstream changes from https://github.com/<...>.git

using GIT_ASKPASS to set credentials 

 > /usr/bin/git fetch --tags --progress https://github.com/<...>.git +refs/pull/*/head:refs/remotes/origin/pr/*

Checking out Revision <commit> (<branch_name>)

 > /usr/bin/git config core.sparsecheckout # timeout=10

 > /usr/bin/git checkout -f <commit>

I've the feeling that the second part (purple) is a duplication of the first (in blue) and is just creating a second remote for nothing.

Is there any explanation for that? It looks like a bug to me :/

Also a more general question: Why is it using https by default? (I'd prefer ssh to be honest.)

Best Regards,

Greg

PS: I'm using the organization scan to detect the Jenkinsfile.