measuring software's embodied carbon; was: online meetup Wed. 20 Nov. 18h UTC | Green Coding Solutions: "Eco-CI" and "Powerletrics"

[Ingo Klöcker]

On Samstag, 30. November 2024 11:41:12 Mitteleuropäische Normalzeit Albert 
Astals Cid wrote:
> El dissabte, 30 de novembre del 2024, a les 4:29:22 (Hora estàndard del
> Centre d’Europa), Ben Cooksley va escriure:
> > The two options I can see for resolving this are:
> > a. Making use of the "ci.skip" Git push option when pushing a new work
> > branch to be used in a merge request
> > b. We set CI jobs as manual by default on work/ branches (optionally
> > making
> > use of a CI environment variable to allow work branches to run by default)
> > 
> > I wouldn't be in favour of making the CI jobs disabled by default on work
> > branches as that is non-intuitive / non-obvious behaviour, especially if
> > you have to pass an environment variable to make them show up.
> 
> How is it non-obvious? You created a "work" branch so no automatic CI for
> you, if you want one, create a Merge Request (so you show your work to the
> rest of us) or run the CI manually.

For the CD jobs we already do this. They are only run automatically on our 
mainline branches. Option b would merely extend this to all jobs for branch 
pipelines. The non-obvious part is that one has to know the KDE-specific CI/CD 
variable that one has to pass to change the behavior.

Option a could also be a workable solution. We could recommend to set ci.skip 
as default option via `git config set push.pushOption ci.skip`. This option 
behaves pretty sensible: "Skips only branch pipelines and not merge request 
pipelines." i.e. it does exactly what we want. And people should be able to 
trigger a branch pipeline by using `git push -o ""`, i.e. by passing an empty 
push option. Granted it's not super intuitive.

I'm leaning toward option a because it leaves the choice to the users using a 
standard option offered by GitLab.

I have now added this option to my KDE specific .gitconfig file which I include 
in the global ~/.gitconfig with
```
[includeIf "gitdir:~/dev/kde/"]
        path = ~/dev/kde/.gitconfig
```

Another alternative would be to define an alias, e.g.
alias.push-mr=push -o ci.skip -o merge_request.create

Regards,
Ingo
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