[gentoo-project] List of features proposed for EAPI 5 (was: Council meeting: Tuesday 11 September 2012, 19:00 UTC)

[Ulrich Mueller]

> 2. EAPI 5 features (40 minutes)
>    A detailed list of proposed features will be sent in a separate
>    message to the gentoo-project mailing list.

Here we go:


1. Features where a wording of the spec and a Portage implementation
   are ready

* Slot operator dependencies
  PMS wording: <http://git.overlays.gentoo.org/gitweb/?p=proj/pms.git;a=commit;h=f9f7729c047300e1924ad768a49c660e12c2f906>
  Portage patch: <http://git.overlays.gentoo.org/gitweb/?p=proj/portage.git;a=commit;h=e4ba8f36e6a4624f4fec61c7ce8bed0e3bd2fa01>
  Bug: <https://bugs.gentoo.org/229521>

* Sub-slots
  PMS wording: <http://git.overlays.gentoo.org/gitweb/?p=proj/pms.git;a=commit;h=5d6749ac9e5ddc5b1daaad7737b65fa81c6ece47>
  Portage patch: <http://git.overlays.gentoo.org/gitweb/?p=proj/portage.git;a=commit;h=e4ba8f36e6a4624f4fec61c7ce8bed0e3bd2fa01>
  Bug: <https://bugs.gentoo.org/424429>

* Profile IUSE injection
  PMS wording: <http://git.overlays.gentoo.org/gitweb/?p=proj/pms.git;a=commit;h=d9040ab3482af5f790368bac5d053bf1cd760ba8>
  Portage patch: <http://git.overlays.gentoo.org/gitweb/?p=proj/portage.git;a=commit;h=f76b983e95d022d6f377e3efd599dd8efbd30b3d>
  Bug: <https://bugs.gentoo.org/176467>

* econf --disable-silent-rules
  PMS wording: <http://git.overlays.gentoo.org/gitweb/?p=proj/pms.git;a=commit;h=b7750e67b4772c1064543defb7df6a556f09807b>
  Portage patch: <http://git.overlays.gentoo.org/gitweb/?p=proj/portage.git;a=commit;h=7d7387b34fdfb6ac8e736ca4e73f1e3f8fa1a705>
  Bug: <https://bugs.gentoo.org/379497>

* At-most-one-of operator for REQUIRED_USE
  PMS wording: <http://git.overlays.gentoo.org/gitweb/?p=proj/pms.git;a=commit;h=1c2dff2df2305aff88a734e3a2716de1bb69f3b6>
  Portage patch: <http://git.overlays.gentoo.org/gitweb/?p=proj/portage.git;a=commit;h=ac843c3df2210566b559dc57c5fb657e20933a58>
  Bug: <https://bugs.gentoo.org/354219>

* EBUILD_PHASE_FUNC variable
  PMS wording: <http://git.overlays.gentoo.org/gitweb/?p=proj/pms.git;a=commit;h=76ddca560da42fd968c53a2a0c38a6ac840a7ad4>
  Portage patch: <http://git.overlays.gentoo.org/gitweb/?p=proj/portage.git;a=commit;h=cbd3ea6cad4d7ef8103ddbb71245c1ea47fa49ed>
  Bug: <https://bugs.gentoo.org/390765>

* Mandate GNU find
  PMS wording: <http://git.overlays.gentoo.org/gitweb/?p=proj/pms.git;a=commit;h=472690942e14f63f1b1f3a5681976a59539ea3f8>,
               <http://git.overlays.gentoo.org/gitweb/?p=proj/pms.git;a=commit;h=6a95dae3fa6b8a6307f5d02c09dc550f1fbe97f2>,
               <http://git.overlays.gentoo.org/gitweb/?p=proj/pms.git;a=commit;h=421f2b9ae05999d621eb663f263ca93eaad0ae57>
  Portage patch: not needed
  Bug: <https://bugs.gentoo.org/384157>

* new* commands can read from standard input
  PMS wording: <http://git.overlays.gentoo.org/gitweb/?p=proj/pms.git;a=commit;h=4939df8586c7b17b03d8627a8371c988f4445a26>
  Portage patch: <http://git.overlays.gentoo.org/gitweb/?p=proj/portage.git;a=commit;h=ffe2a5b5f70be05565b5a3038637805319088743>
  Bug: <https://bugs.gentoo.org/263565>

* Parsing of the EAPI assignment is mandatory
  PMS wording: <http://git.overlays.gentoo.org/gitweb/?p=proj/pms.git;a=commit;h=91d1e1e39b034bde7e5b981a5616a127135f37fa>
  Portage patch: <http://git.overlays.gentoo.org/gitweb/?p=proj/portage.git;a=commit;h=5e28fe97e67ab4f3e2d8410a8704156b6bb08555>
  Bug: <https://bugs.gentoo.org/402167>

* src_test support for parallel tests
  PMS wording: <http://git.overlays.gentoo.org/gitweb/?p=proj/pms.git;a=commit;h=3ec4b3c22582a8ec206bce1e93bab377d7b264b5>
  Portage patch: <http://git.overlays.gentoo.org/gitweb/?p=proj/portage.git;a=commit;h=9f14ed80e65a18da06e0834961ea032e3e830319>
  Bug: <https://bugs.gentoo.org/363005>

* Stable use forcing and masking
  PMS wording: <http://git.overlays.gentoo.org/gitweb/?p=proj/pms.git;a=commit;h=2921080e5b4f67ae55d2f80f8fea2b8d47ced831>
  Portage patch: <http://git.overlays.gentoo.org/gitweb/?p=proj/portage.git;a=commit;h=ebf5d1a64a4a40a0efeba3b038122eef375ace94>
  Bug: <https://bugs.gentoo.org/431078>

* Option --host-root for {has,best}_version
  PMS wording: <http://git.overlays.gentoo.org/gitweb/?p=proj/pms.git;a=commit;h=25fb5fca6674215ea8aaa3d0ec3dd3df451eec07>
  Portage patch: <http://git.overlays.gentoo.org/gitweb/?p=proj/portage.git;a=commit;h=bcf4ab871ededc3d535165757ba5597669e33dcb>
  Bug: <https://bugs.gentoo.org/401239>

* doheader helper function
  PMS wording: <http://git.overlays.gentoo.org/gitweb/?p=proj/pms.git;a=commit;h=fe5cf5e91299156dc74338c897d9a7bfb8883f5a>
  Portage patch: <http://git.overlays.gentoo.org/gitweb/?p=proj/portage.git;a=commit;h=e7e4c3720582a7ab938266e50e53d162f5248488>
  Bug: <https://bugs.gentoo.org/21310>

* usex helper function
  PMS wording: <http://git.overlays.gentoo.org/gitweb/?p=proj/pms.git;a=commit;h=d9ef20fa5b959f1878179342c5ed010534a954bf>
  Portage patch: <http://git.overlays.gentoo.org/gitweb/?p=proj/portage.git;a=commit;h=b9e2daded3663c59bf11b04e952bdfb4eb5deabf>
  Bug: <https://bugs.gentoo.org/382963>


2. Things where additional discussion may be needed

* econf --disable-silent-rules (see above)
  - Apply retroactively to EAPI 4?
  - Apply retroactively to all EAPIs?
    (May be problematic because of additional configure call.)

* User patches
  PMS wording: <http://git.overlays.gentoo.org/gitweb/?p=proj/pms.git;a=commit;h=a8bf7862967cce36b7f1b408934a774126da2538>
  Portage no-op dummy stub: <http://git.overlays.gentoo.org/gitweb/?p=proj/portage.git;a=commit;h=6b4b621f1abcf21d3bfa54b323126a3ef11eb52c>
  - Intrusive.
  - Current wording of the spec requires that every ebuild includes a
    call to the apply_user_patches function in src_prepare.
    An alternative would be to apply user patches after src_prepare as
    a default, if the ebuild doesn't call the respective function.
  - The spec doesn't provide any kind of epatch function, so we will
    end up having two copies of epatch, one for user patches, and the
    other (from eclass) for ebuilds.
  - Are we happy with the name apply_user_patches? (epatch_user?
    euserpatch?)

* License groups in ebuilds
  Bug: <https://bugs.gentoo.org/287192>
  - A simpler solution would be create separate license files like
    GPL-2+ for the few cases where this is needed. This would have the
    advantage that it could be applied to all EAPIs.

* EJOBS variable
  <http://archives.gentoo.org/gentoo-dev/msg_750e33f68b16d971dff1f40dd9145e56.xml>
  -  Discussion was almost 4 years ago. Is there (still) consensus?

* Source eclasses only once
  Bug: <https://bugs.gentoo.org/422533>
  - <http://marc.info/?l=gentoo-dev&m=134493783816587&w=2>

* Extended default list of extensions in dohtml
  Bug: <https://bugs.gentoo.org/423245>
  - Objections against inclusion of non-standard extensions like .ico
    have been raised.

* REPOSITORY variable
  Bug: <https://bugs.gentoo.org/414813>
  - Controversial, see bug.

* Repository dependencies
  Bug: <https://bugs.gentoo.org/414815>
  - Controversial, see bug.


3. Not sure if the following are candidates for EAPI 5

* Cross-compile support
  <http://archives.gentoo.org/gentoo-project/msg_b1e2b88bbeb667a3fa834c99a1981fbe.xml>

* package.mask, use.force, use.mask, package.use, package.use.force
  and package.use.mask directories
  Bug: <https://bugs.gentoo.org/282296>
  - Need profiles EAPI bump

* make.defaults, use.force, use.mask, package.use, package.use.force
  and package.use.mask in ${repository_path}/profiles
  Bug: <https://bugs.gentoo.org/414817>
  - Need profiles EAPI bump

* HDEPEND: host dependencies for cross-compilation
  Bug: <https://bugs.gentoo.org/317337>