[gentoo-dev] [RFC] What features should be included in EAPI 2?

[Zac Medico <zmedico@gentoo.org>]

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Hello again,

I'd like to get some feedback about what people would like to have
in the final EAPI 2. In planning for this EAPI bump, we should
strike a balance somewhere in between everything that we'd like to
have and whatever we can implement in a short period of time. It
doesn't really makes sense to delay the EAPI bump too much for
implementation of new features, since those features can simply be
reserved for a future EAPI bump.

The latest experiment EAPI is 2_pre2, supported by
>=sys-apps/portage-2.2_rc7. Please refer to the html documentation
[1] for addition information about the experimental EAPI extensions
which are summarized here:

 * The 'doman' helper function recognizes language codes in man page
   source files, and uses them to generate an appropriate
   installation path.

 * Dependency atoms can be constrained to match specific USE flag
   states, including USE conditional expressions embedded within
   the atoms themselves.

 * The old src_compile phase function is split into separate
   src_configure and src_compile fuctions.

 * Default phase function implementations for the current EAPI are
   accessible via a function having a name that begins with default_
   and ends with the respective phase function name.

 * Default phase function implementations for older EAPIs are
   accessible via functions having names that start with 'eapi',
   followed by the EAPI value.

 * The default phase function implementation for the currently
   executing phase is accessible as a function named 'default'.

In addition to the above extensions, I've received a patch for
SRC_URI arrows [2] that I plan to review but haven't had time yet.
Please file bugs for any additional features that you'd like to add
and mark them as blockers of bug 174380 [3].

Thanks,
Zac

[1]
http://dev.gentoo.org/~zmedico/portage/doc/portage.html#package-ebuild-eapi
[2] http://bugs.gentoo.org/show_bug.cgi?id=177863
[3] http://bugs.gentoo.org/show_bug.cgi?id=174380
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