[bitbake-devel] [PATCH v5] fetch/gitsm: avoid live submodule fetching during unpack()

Matt Hoosier matt.hoosier at gmail.com
Fri Jun 8 12:36:29 UTC 2018

On Fri, Jun 8, 2018 at 5:20 AM Richard Purdie <
richard.purdie at linuxfoundation.org> wrote:

> On Thu, 2018-06-07 at 08:47 -0500, Matt Hoosier wrote:
> > Thanks for the help getting this landed. With this change being part
> > of Bitbake, what's the procedure for attempting to get it backported
> > to the final MR of Yocto 2.2? Do I just backport it to a certain
> > maintenance branch of Bitbake (announced somehow with a prefix on the
> > git-send-email subject) and it would magically pop up out the
> > corresponding branch of poky if accepted to Bitbake?
> With bitbake its a case of requesting backports to the appropriate
> stable release branches, either in the form of a patch with [1.3X] in
> the subject, or just mention which revision to cherry-pick to which
> branch if it cherry-picks cleanly.
> I think to get back to 2.2, we'd have to backport to 1.38, 1.36, 1.34
> and 1.32. I do get nervous about patches which land in master and then
> immediately get backported across so many releases. I'm less nervous if
> the patches cleanly cherry-pick as at least the code is the same. How
> cleanly does it backport?
> Cheers,
> Richard
It's not a completely clean back-port; some of the context lines don't
match because of changes to the logic that detect when a repository uses
gitsubmodules to begin with. The actual logic changes lift pretty-much
straight in though.

I appreciate your point about being cautious when putting unproven code
straight into a branch that gets used for maintenance releases though. So I
could understand wanting to let it prove out on master for a while.
Conversely, there are no recipes in Poky that use gitsm to begin with, so I
don't know how much additional confidence would really be gained just
through time. Is that also an argument that the potential impact to the
stable branch of poky's own metadata is small?
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