Re: [gentoo-dev] Ideas for a (fast) EAPI=3

[Ciaran McCreesh]

On Sun, 08 Mar 2009 08:49:16 +0100
Tiziano Müller <dev-zero@g.o> wrote:
> With eapis 1 and 2 we introduced nice features but also a couple of
> new problems. One of them are the use dependencies when the package
> you depend on doesn't have the use flag anymore (see [1] for an
> example).

Here's another one to consider:

If S= is wrong (which it often is, for packages with icky tarballs),
src_configure and src_compile won't error out. These days this isn't a
huge deal, because your custom src_install will probably fail. But if
we're introducing a default src_install, it will instead see no
Makefile and just do nothing, resulting in an empty package being
installed.

Currently, at the start of src_configure, the package manager does a cd
to ${S} if ${S} exists, and to ${WORKDIR} otherwise. I'd like to
propose that ${S} not existing should instead be an error if either of
the following conditions are met:

* ${A} is non-empty
* Any of src_unpack, src_configure, src_compile or src_install is a
  defined phase.

Ebuilds where this would trigger a false positive would have to specify
S=${WORKDIR}.

-- 
Ciaran McCreesh