[devel] [PATCH] gb: add gb-task-build-post, optimize packages with identical rebuild

[Dmitry V. Levin]

On Sat, Jun 06, 2020 at 04:42:21PM +0300, Alexey Tourbin wrote:
> On Fri, Jun 5, 2020 at 5:23 PM Vladimir D. Seleznev wrote:
> > > > Introduce task post-build processing. It finds subtasks with package
> > > > rebuild and if the rebuilt packages identical to the same packages in
> > > > the target repo it optimizes them.
> > >
> > > It doesn't make much sense. When we rebuild a package without changing
> > > the release, we expect something else in the package to change because
> > > of the rebuild (e.g. a binary will be linked with a new library
> > > version). If the package hasn't changed, it is an alarming condition
> > > which indicates that some of the packager's assumptions were wrong
> > > (e.g. the binary actually doesn't link with the library). So should we
> > > really "optimize" this case? We might as well prohibit it!
> >
> > By "prohibit" you mean make task build fail? I would say that it is
> > unnecessary. It'd produce additional difficulties for maintainers
> > without any profit.
> 
> The difficulties are all in the maintainers' heads.
> There must be a valid reason for rebuilding a package.

Given that rebuilding a package costs so little for the maintainer,
we definitely should reject rebuilds that do not result to changed
packages.


-- 
ldv