Re: [PATCH 0/2] replacing ci/config/allow-ref with a repo variable

[Jeff King <peff@peff.net>]

Two minor corrections in what I wrote...

On Wed, Sep 13, 2023 at 08:30:10PM -0400, Jeff King wrote:

> (BTW, one other thing I tried was using fromJSON(vars.CI_CONFIG) in the
> "on" expression, which in theory would allow globbing. But it doesn't
> look like expressions work at all in that context. And even if they did,
> I'm not sure we could make it work such that an empty CI_CONFIG used
> some defaults, since there's no conditional-expression ternary
> operator).

It's not a real ?: operator, but GitHub does use the word "ternary" to
describe the short-circuit behavior of:

  condition && "if-true" || "if-not-true"

So in theory we could do:

  on: ${{ fromJSON(var.CI_ON != '' && vars.CI_ON || "[pull_request, push]" }}

but I couldn't make it work (it complains about the value of "on" in
such a way that I assume it is simply not expanding expressions at all).

> We have the necessary bits at the protocol: push-options. But it's up to
> the server-side hooks to decide which ones are meaningful and to do
> something useful with them. It looks like GitLab supports:
> 
>   git push -o ci.skip=1 ...
> 
> but I don't think GitHub respects any equivalent option.

The syntax here is actually just "git push -o ci.skip", without the
equals.

-Peff