Re: [gentoo-user] Is binary emerge equivalent to source emerge?

[Sascha Lucas]

Hi Ian,

> 1) Does this seem like a sensible idea?  Will it generally work?
> 2) Will --usepkg --getbinpkg use binary packages for dependencies?
> 3) Is the resultant Portage database equivalent to source emerges, especially
> in respect of future --updates, --newuse, etc?
> 4) Am I right to use a Portage snapshot from the current machine?
> 5) Is this idea so close to the Catalyst idea that I should use its methods
> to achieve my aims?

I'm answering to your thread, because I'm also playing with binary merges. 
At the moment I'm not realy happy with it. I've played with catalyst/GRP, 
PORTAGE_BINHOST (aka --getbinpkg), PKGDIR via nfs (aka --usepkg).

Perhaps there is someone out there who can point me to some docs etc. Or 
correct my following statments:

to 1)
  - yes it will work
  - you have 3 choices how to build your binarys
    * GRP with catalyst (usefull if your USE-/CFLAGS-Falgs etc. on the
      build system and target system differ)
    * quickpkg from allready installed ebuilds
    * FEATURES="buildpkg" in make.conf (creates bin's on merge)
  - the last 2 are usefull if your USE-/CFLAGS-Flags are identical or do
    not differ much

  - what you need is:
    * portage-snapshot (can be done with catalyst)
    * stage3 from internet or actual build with catalyst
    * binarys build with USE-/CFLAGS-Flags you want on the target

to 2)
   - yes binarys are used for deps
   - --usepkg looks for binarys in PKGDIR=${PORTDIR}/packages
   - --getbinpkg looks for binarys on PORTAGE_BINHOST (I tried ftp)
   - both have a "only" variant which should use only binarys
   - the only-variants doesn't make me happy, because they seem to ignore
     different USE-Flags

to 3)
   - if you mean /var/db/pkg then yes it's the same
   - updates seem to work (-kuD world)
   - -uD --newuse world (ebuild only) works
   - -uD --newuse --usepkg world (binary if possible, else ebuild) does not
     work very well

to 4 and 5) may be something in my comments to 1-3.

Perhaps I'm doing something wrong.... then please tell me the better way.

THX,

Sascha.
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