[OE-core] [PATCH v4] python*-setuptools: add separate packages for pkg_resources module

[Luca Boccassi]

On Tue, 2019-05-21 at 19:06 -0700, Khem Raj wrote:
> On Tue, May 21, 2019 at 5:36 AM <
> luca.boccassi at gmail.com
> > wrote:
> > From: Luca Boccassi <
> > luca.boccassi at microsoft.com
> > >
> > 
> > The pkg_resources Python module is useful by itself, for example
> > for
> > automatic loading of resources shipped in a Python package.
> > Add separate packages for it, so that users can depend on them
> > individually and avoid pulling in the entire setuptools, which
> > include scripts to download other packages, which might not be
> > desired on minimal images.
> > 
> > Other distributions like Debian and Ubuntu already split setuptools
> > and pkg-resources in this way.
> > 
> > The setuptools packages now depend on the new pkg-resources
> > packages,
> > to avoid regressions for other packages that depend on them
> > already.
> > 
> > Signed-off-by: Luca Boccassi <
> > luca.boccassi at microsoft.com
> > >
> > ---
> > v2: restrict new RDEPENDS to class-target. As advised by Alexander,
> > bitbake
> >     cannot resolve native rdeps that mention package names rather
> > than
> >     recipe names.
> > v3: manually add RPROVIDES to the native class instead of
> > restricting the
> >     RDEPENDS to the target class as a better workaround. Also
> > document why
> >     the package is being split.
> > v4: re-send to the correct thread, no changes.
> > 
> >  meta/recipes-devtools/python/python-setuptools.inc | 11
> > +++++++++++
> >  1 file changed, 11 insertions(+)
> > 
> > diff --git a/meta/recipes-devtools/python/python-setuptools.inc
> > b/meta/recipes-devtools/python/python-setuptools.inc
> > index 357aa07086..f49e078697 100644
> > --- a/meta/recipes-devtools/python/python-setuptools.inc
> > +++ b/meta/recipes-devtools/python/python-setuptools.inc
> > @@ -37,3 +37,14 @@ do_install_prepend() {
> >  }
> > 
> >  BBCLASSEXTEND = "native nativesdk"
> > +
> > +# The pkg-resources module can be used by itself, without the
> > package downloader
> > +# and easy_install. Ship it in a separate package so that it can
> > be used by
> > +# minimal distributions.
> > +PACKAGES =+ "${PYTHON_PN}-pkg-resources "
> > +FILES_${PYTHON_PN}-pkg-resources =
> > "${PYTHON_SITEPACKAGES_DIR}/pkg_resources/*"
> > +# Due to the way OE-Core implemented native recipes, the native
> > class cannot
> > +# have a dependency on something that is not a recipe name. Work
> > around that by
> > +# manually setting RPROVIDES.
> > +RDEPENDS_${PN}_append = " ${PYTHON_PN}-pkg-resources"
> > +RPROVIDES_append_class-native = " ${PYTHON_PN}-pkg-resources-
> > native"
> 
> do we need to handle nativesdk case ?

Hi,

The parsing step of "bitbake core-image-minimal -c populate_sdk" works,
while without the append_class-native workaround it fails immediately.
Is this enough or is there something else I should run to check?

Thanks!

-- 
Kind regards,
Luca Boccassi