Handle SIGINT when running "up" command to shutdown gracefully

[mokazemi]

This pull request enhances the podman compose behavior by handling the Ctrl+C (SIGINT) signal more gracefully. When Ctrl+C is pressed during the execution of podman compose up, it runs the down command to make sure containers shut down gracefully.

Solves: #51, #112, #411, #436, #457, #543, #676

[p12tic]

Thanks for the contribution. The PR looks good in principle, I'm just not confident enough with the down_args = argparse.Namespace(**dict(args.__dict__, volumes=False)) line yet.

Separately, pylint is complaining in https://github.com/containers/podman-compose/actions/runs/13497452404/job/37707798339?pr=1148. I think both warnings can be disabled in .pylintrc.

[mokazemi]

Thanks for the contribution. The PR looks good in principle, I'm just not confident enough with the down_args = argparse.Namespace(**dict(args.__dict__, volumes=False)) line yet.

About the line that you mentioned (down arguments) I actually used the same line already used somewhere else in the code:

podman-compose/podman_compose.py

Line 2742 in bcce413

down_args = argparse.Namespace(**dict(args.__dict__, volumes=False))

I guess it should work enough, but we can modify in case of improvements.

Separately, pylint is complaining in https://github.com/containers/podman-compose/actions/runs/13497452404/job/37707798339?pr=1148. I think both warnings can be disabled in .pylintrc.

Oh I didn't check for warning here. I changed the code about the second one so that it passes now, but for the first one, I added it to .pylintrc since IMO it could be ignored :)).

[pablo-tx]

@p12tic is there anything else blocking this merge?

[p12tic]

@pablo-tx @mokazemi Sorry for taking a long time to reply.

Code changes look good. Please rebase on top of latest main branch and fix merge conflicts. Also please add a release note to the newsfragments directory (you can look here for inspiration on how release note looks like). Also DCO test fails - it asks for Signed-off-by: Author Name <[email protected]> line in commit message.

[mokazemi]

Done. @p12tic