[Nix-dev] Travis Testing Needs Rethinking

[Arseniy Seroka]

There are several things we need to check in a PR even if it builds
successfully.
On 14 Feb 2016 21:44, "zimbatm" <zimbatm at zimbatm.com> wrote:

> What if master was always the latest successful hydra build ? People could
> rebase on top and have cached builds. Nox could also have cached builds.
>
> Instead of merging a PR we would instruct Hydra to queue the build. If the
> build is successful hydra would merge it into master and close the PR.
> Otherwise it would amend the PR with the build errors. To instruct Hydra we
> could annotate a PR with a custom message like: "hydra go!".
>
> I believe that this would also help to spot regressions faster. Right now
> Darwin tends to get breaking chances because Nox only tests against Nixos.
> And since the builds would be done against all OSes we would also be able
> to merge all the unstable channels.
>
>
> On Sat, 13 Feb 2016 at 19:24 Kevin Cox <kevincox at kevincox.ca> wrote:
>
>> On Sat, 2016-02-13 at 17:03 +0000, Adam Russell wrote:
>>
>> Wouldn't this all be less of an issue if the build on Hydra wasn't behind
>> by weeks? Should we talk about how to improve that? Personally I don't even
>> know how to navigate or interpret Hydra when I go look at it.
>>
>>
>> I don't think Hydra is actually behind much, the channels are but IIUC
>> most builds are actually completing in a couple of hours. (Actually looking
>> now I see some 2 day old builds but nothing too terrible
>> http://hydra.nixos.org/status).
>>
>> Getting faster hydra builds might make this less of an issue but there
>> will always be a delay. Of course if that delay is very small it won't
>> matter much.
>>
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