[llvm-dev] Phabricator bugs w/ the "repository" field when updating patches via web interface

[Martin Storsjö via llvm-dev]

On Thu, 17 Dec 2020, Mark de Wever wrote:

> I recently ran into the same issue and it seems updating patches in the
> webinterface doesn't trigger a CI build. At Louis' request I recently
> switched to arc. For me arc always triggers the CI build.
>
> Luckily my patch set was a lot smaller than yours.
>
> This seems to be a known issue documented at
> https://github.com/google/llvm-premerge-checks/blob/master/README.md
>    The builds are only triggered if the Revision in Phabricator is
>    created/updated via arc diff. If you update a Revision via the Web
>    UI it will not trigger a build.

Thanks for the pointer! So it seems like it's a known issue at that level 
at least, although that just summarizes the symptom - and at least in my 
experience, it's possible to work around it, clumsily.

If someone with better insights into Phabricator would have time to have a 
look at the behaviour of the repository field when updating patches via 
the web interface, we might get closer to a solution though.

// Martin