Re: [gentoo-dev] developer profile, FEATURES=digest

[Mike Frysinger]

On Mon, Mar 28, 2011 at 1:03 PM, Mike Frysinger wrote:
> On Mon, Mar 28, 2011 at 11:43 AM, Christoph Mende wrote:
>> On Mon, 2011-03-28 at 16:57 +0200, Thomas Kahle wrote:
>>> On 13:13 Sun 27 Mar     , "Paweł Hajdan, Jr." wrote:
>>> > FEATURES=digest results in a scary warning and a possibly dangerous
>>> > re-generation of manifests at the beginning of every emerge:
>>> >
>>> >  * The FEATURES=digest setting can prevent corruption from being noticed.
>>> >  * The `repoman manifest` command is the preferred way to generate
>>> >  * manifests and it is capable of doing an entire repository or category at
>>> >  * once.
>>> >
>>> > However, FEATURES=digest is enabled in the developer profile, and only
>>> > in that profile:
>>> >
>>> > $ egrep '^FEATURES=.*digest' -r /usr/portage/profiles/
>>> > /usr/portage/profiles/targets/developer/make.defaults:FEATURES="collision-protect
>>> > digest multilib-strict sign splitdebug stricter test test-fail-continue
>>> > userpriv usersandbox"
>>> >
>>> > I'd like to suggest removing "digest" from the line above. I've been
>>> > running with the developer profile and -digest in /etc/make.conf, and
>>> > everything is working fine.
>>>
>>> +1.
>>>
>>> I disabled it on the first day and never had any issues.
>>
>> I guess the real question here is: why was it enabled?
>
> because doing active development on ebuilds by definition invalidates
> the manifest.  portage didnt use to whine about it at all.  a lot
> easier to `emerge foo` without having to manually run `ebuild foo
> manifest` all the damn time.
>
> personally, i use FEATURES=digest on my development machine, but i can
> see how people would find this undesirable as a profile default.

oh, and i'm fairly certain that it used to only rebuild Manifests as
necessary (instead of blindly doing it all the time), and it used to
not check the digests of missing files.  the latter though now is
available through FEATURES=assume-digests.
-mike