Re: [gentoo-dev] emerge --binpkg-changed-deps

[Marc Schiffbauer]

* Zac Medico schrieb am 05.08.15 um 00:04 Uhr:

On 08/04/2015 01:16 PM, Marc Schiffbauer wrote:

hi all,

i find it a bit hard to understand how --binpkg-changed-deps is supposed
to work and what implications it has. Moreover I think the man page is
not very clear about what it does:

"--binpkg-changed-deps [ y | n ]
   Tells emerge to ignore binary packages for which the    corresponding
ebuild dependencies have changed since the    packages were built.  In
order to help avoid issues with    resolving  inconsistent
dependencies,  this  option  is     automatically enabled unless the
--usepkgonly option is enabled.     Behavior with respect to changed
build-time dependencies is    controlled by the --with-bdeps option.
"

This looks a bit confusing to me. Am I alone with that?

If I understand that option right, maybe this text is better?

--binpkg-changed-deps [ y | n ]
   When enabled tells emerge to ignore a binary package and do a
source build instead if the corresponding ebuild runtime    dependencies
(RDEPEND) have changed in the portage tree since    the package was built.

It doesn't necessarily imply a source build, since you can have multiple

binary packages available.

I see. So this might be better:

When enabled tells emerge to ignore a binary package if the corresponding ebuild runtime dependencies (RDEPEND) have changed in the portage tree since the package was built.

With FEATURES=binpkg-multi-instance, you can
have multiple local binary packages of the same package version in
PKGDIR. Even without FEATURES=binpkg-multi-instance, you can also have
multiple binary packages of the same package version coming from
multiple binhosts.

I had hoped for a feature like that and did not realize its already there, great! But thats another story..

   To help avoid issues with resolving inconsistent dependencies    this
option is enabled by default unless using source builds is    disabled
by the --usepkgonly option.

Adding "using source builds is disabled" would be a valid way to clarify
the meaning of --usepkgonly.

Yes, I think this will improve the description.

   If the --with-bdeps option is also enabled, changed build-time
dependencies (DEPEND) will be considered instead.

Not instead, but in addition to.

If the --with-bdeps option is also enabled, changed build-time
dependencies (DEPEND) will also be considered.

-Marc

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