On Wed, 21 Apr 2021, Denys Dmytriyenko wrote:
> On Wed, Apr 21, 2021 at 07:44:45AM -0400, Robert P. J. Day wrote:
> >
> > based on my recommendation, colleague created a local source mirror
> > to start collecting tarballs so as to minimize amount of downloading
> > for various builds. names of tarballs that correspond to fixed
> > (versioned) tarballs was fairly obvious, but he got stuck trying to
> > local source mirror a tarball for googletest (from meta-oe), which
> > contains (among other things):
> >
> > googletest_git.bb
> > ...
> > PV = "1.10.0"
> > S = "${WORKDIR}/git"
> > SRCREV = "703bd9caab50b139428cea1aaff9974ebee5742e"
> > SRC_URI = "git://github.com/google/googletest.git"
> >
> > he wasn't sure what name the tarball should have in order to be
> > recognized in the local source mirror. i didn't have the answer off
> > the top of my head, but since for years i've enhanced all my builds
> > with a site.conf file containing:
> >
> > SOURCE_MIRROR_URL ?= "file:///home/rpjday/oe/dist/tarballs/"
> > INHERIT += "own-mirrors"
> > BB_GENERATE_MIRROR_TARBALLS = "1"
> >
> > i just added googletest to a random build to see what i'd get, and
> > got:
> >
> > git2_github.com.google.googletest.git.tar.gz
> >
> > i guess i'd never paid close attention to the name generation for such
> > things, but i'm *assuming* that the name generation by the appropriate
> > fetcher code simply encodes everything there is to know about the
> > source so that the appropriate tarball is recognized as the local
> > source mirror version for that recipe. is that about right?
> >
> > second question: clearly, the simple name of that tarball doesn't
> > encode the PV or SRCREV values, so what happens if the base recipe
> > suddenly bumps PV up to 1.11.0? i'm sure the answer is obvious, i've
> > just never thought about it.
>
> The tarball with the previous clonedir will be unpacked and bitbake will check
> if required SRCREV exists in there. If not, it will try to update the clonedir
> from upstream.
i feel silly for having asked this question since a little more
research clarified things nicely. *sigh*.
rday
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