Re: [gentoo-portage-dev] [PATCH] const: Switch default hash set to BLAKE2B+SHA512

[Zac Medico]

On 01/13/2018 12:50 AM, Michał Górny wrote:
> Switch the Portage defaults to the new Gentoo hash set. We're already
> far past the initial testing and I have been approached by a few people
> who were surprised that Portage does not use new hashes for overlays.
> Switching the defaults will remove the need for custom hashes
> in layout.conf.
> ---
>  pym/portage/const.py | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/pym/portage/const.py b/pym/portage/const.py
> index ec877b841..e5fa4b67c 100644
> --- a/pym/portage/const.py
> +++ b/pym/portage/const.py
> @@ -206,8 +206,8 @@ EAPI                     = 6
>
>  HASHING_BLOCKSIZE        = 32768
>
> -MANIFEST2_HASH_DEFAULTS = frozenset(["SHA256", "SHA512", "WHIRLPOOL"])
> -MANIFEST2_HASH_DEFAULT  = "SHA512"
> +MANIFEST2_HASH_DEFAULTS = frozenset(["BLAKE2B", "SHA512"])
> +MANIFEST2_HASH_DEFAULT  = "BLAKE2B"
>
>  MANIFEST2_IDENTIFIERS    = ("AUX", "MISC", "DIST", "EBUILD")
>
>
For repos where layout.conf doesn't set "manifest-required-hashes =
SHA512", repoman is suddenly going to force all DIST files to be fetched
in order to generate the missing BLAKE2B entries. Is that intended?
-- 
Thanks,
Zac