[petsc-dev] [petsc-users] new book introducing PETSc for PDEs

[Jed Brown]

Satish Balay <balay at mcs.anl.gov> writes:

> On Sat, 31 Oct 2020, Jed Brown wrote:
>
>> Barry Smith <bsmith at petsc.dev> writes:
>> 
>> >    I have no problem updating any of Ed's examples if we need to with each release, so the burdern doesn't fall on him. We simply make a fork of his 
>> > repository with a new branch and update that and make a MR to Ed for each release and he can have a new branch or tag of his examples for each new 
>> > PETSc release.
>> >
>> >    Barry
>> >
>> >   We just make this part of our release process.
>> 
>> If we add it to CI, the workflow is
>> 
>> 1. Do work in the PETSc repository
>> 2. Fork Ed's repository, create branch, update, and push
>> 3. Point PETSc CI to the fork
>> 4. Submit PETSc MR, review, and merge
>> 5. Submit PR to Ed's repo, review, and merge
>> 6. Update PETSc CI to once again point at Ed's "main" branch
>
> we had similar workflow with petsc4py before it was merged into petsc repo.

petsc4py tests didn't run as part of CI, we just fixed issues when they were reported or a developer encountered them. We merged it into the PETSc repository largely because adding it to CI as an external repo would be too taxing.

> primary difference: a branch in a fork vs branch in upstream petsc4py
> [alternative to switch back and forth with fork vs main repo is always have the fork be mirrored..]