Re: [gentoo-pms] EAPI specification in ebuilds

[Zac Medico]

On 04/11/2012 11:02 AM, David Leverton wrote:
> Zac Medico wrote:
>> Since the EAPI parsing behavior is optional for older EAPIs, package
>> managers can simply trigger a warning when they detect non-conformant
>> ebuilds in the wild, and eventually make it fatal after the community
>> has had sufficient warning.
>
> Just to be clear, do you mean "if the PM doesn't detect an EAPI
> assignment during parsing but the EAPI is non-0 after generating the
> metadata, warn"? ¹ Or something else?
>
> [1] As opposed to the already-decided "if the PM detects an EAPI line
> during parsing but the EAPI is something else after generating the
> metadata, fail" rule.

The spec says "The package manager may optionally determine the \t{EAPI} 
of an ebuild by parsing it", which implies that you can implement a 
"pretend" mode that doesn't really determine the EAPI by parsing it, but 
parses it anyway and uses the result to generate deprecation warnings. A 
"pretend" mode like this is useful for initial deployment, in order to 
warn people with non-conformant ebuilds that are outside of the main tree.
--
Thanks,
Zac