Declarative pipeline syntax: how to configure blockOn and waiting for a time slot to start?

[Amedee Van Gasse]

I have a Bitbucket Server Project.

I am using declarative Jenkinsfiles

All branches/PRs of all repos in the Project are built if they have a Jenkinsfile. Wonderful.

The branches/PRs are built when there is new git activity. Wonderful.

There is one repo with 2 requirements that I'm stuck on:

1. It cannot run when anything else is running, not even other branches of itself. I already have disableConcurrentBuilds() but then I can still run different branches in parallel and I don't want that. I know about the Build Blocker plugin and I would put this in my Jenkinsfile, but I don't know where to put it:

    blockOn('.*') {
        blockLevel('GLOBAL')
        scanQueueFor('ALL')
    }

2. That particular job, any branch of it, is only allowed to start between specific hours, regardless of how it got triggered. I don't know how to put that in my Jenkinsfile. I looked at quietPeriod and rateLimitBuilds, but they seem to be for something else.

I had a third question about how to schedule it with cron, but I found that myself already:

triggers {
    cron('H H(0-6) * * 1-5')
}

meaning anywhere between midnight and 6 AM on work days.

[Amedee Van Gasse]

Can I do item 1 with lockable resources? But then wouldn't every Jenkinsfile in all of my repos require lockable resources? So I think that's also not the way to go but I could be wrong.