How to get all projects in a SBT task?

Question

I'm writing a SBT task, which will get all projects of the whole project, then I can run some tasks against them.

The pseudo code is like:

val projects = someTaskToGetProjects.value
val updateReports = projects.map(p => (update in p).value)

But I can't find any task or setting to get the project list, how to do it?

Answer 1

I think buildDependencies might suit your needs, otherwise loadedBuild has everything.

val projects = buildDependencies.value.classpath.keys
val updateReports = projects.map(p => (update in p).value)