[petsc-dev] [Mike McQuaid] Re: [Homebrew/homebrew-core] PETSc: import from homebrew-science (#23598)

[Jed Brown]

"Smith, Barry F." <bsmith at mcs.anl.gov> writes:

>> And yet we're talking about uninstall and we also have support for
>> upgrading them (except that it doesn't clean up the old version and thus
>> isn't very reliable).
>
>    Huh, it has support for upgrading them? 

I believe this is the intent of updateGitDir.