Re: [gentoo-dev] The fallacies of GLEP55

[William Hubbs <williamh@gentoo.org>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On Thu, May 14, 2009 at 10:53:37PM +0100, Ciaran McCreesh wrote:
> It can't, because it doesn't know the EAPI until it's sourced the thing
> using bash. Using things like += in global scope will break older bash
> versions to the point that they can't reliably extract EAPI.
 
I just figured out a line in bash that will get an EAPI without
sourcing the ebuild:

eval `grep '^EAPI=' ebuildfile | head -n 1`

will set EAPI in the current scope to EAPI in the ebuild, without
sourcing it, unless the issue with something like this would be its use
of grep and head, but these are both in the system set, so unless you
don't want to depend on the system set, I don't know what the objection
would be.

- -- 
William Hubbs
gentoo accessibility team lead
williamh@gentoo.org
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.11 (GNU/Linux)

iEYEARECAAYFAkoNxeEACgkQblQW9DDEZThaFACfYSQTpPTxfh3MzvErzbSNGZ8M
46AAoIyGTJxbWQ4Be7075uHXYN+hfnDl
=X3Wn
-----END PGP SIGNATURE-----