I think this would be useful to all projects, but my primary motivation is @python/python3.10.

Some of our packages are scm, some are distgit. Majority have "master" as committish, but a few have something else. I'd like to change the ones that have "master" to have "rawhide".

I'll see what I can script.

This does what I needed it to do:

import json
import subprocess

packages = json.loads(subprocess.check_output("copr list-packages @python/python3.10",
                                              text=True, shell=True))

for package in packages:
    branch = package["source_dict"].get("committish", "master")
    if branch == "master":
        name = package["name"]
        print(name)
        subprocess.run(f"copr edit-package-distgit --commit rawhide --name {name} @python/python3.10",
                       text=True, shell=True, check=True)

It also converts scm packages to dist-git, but that's OK for us.

Thanks for the headsup, and for howto. Would it be enough if we merged #1688 and
released new copr-rpmbuild package? Those who don't explicitly specify the
committish field would automatically get the project-default branch (no matter if
that is main, rawhide or master).

I think that #1688 together with an announcement would work.

The #1688 is out in production, and we should mention this in new release
notes this week or the week after.

Going to mention this in 2021-03-17 release notes.