[gentoo-dev] Re: EAPI conditional in eclasses (was: [PATCH v2 1/6] verify-sig.eclass: New eclass to verify OpenPGP sigs)

[Ulrich Mueller]

>>>>> On Tue, 06 Oct 2020, William Hubbs wrote:

>> +case "${EAPI:-0}" in
>> +	0|1|2|3|4|5|6)
>> +		die "Unsupported EAPI=${EAPI} (obsolete) for ${ECLASS}"
>> +		;;
>> +	7)
>> +		;;
>> +	*)
>> +		die "Unsupported EAPI=${EAPI} (unknown) for ${ECLASS}"
>> +		;;
>> +esac

> Does it really matter that an EAPI is unsupported because it is
> obsolete vs unknown? Can we simplify this case statement to the
> following or something similar for all of our eclasses?

> case "${EAPI:-0}" in
> 	7)
> 		;;
> 	*)
> 		die "Unsupported EAPI=${EAPI} (unknown) for ${ECLASS}"
> 		;;
> esac

I am with you there, at least for a new eclass that never supported
these old EAPIs.

It may be somewhat useful when removing existing support for an EAPI,
but even there things should be clear from context?

Ulrich