For some reason, we are getting an empty licensecheck.txt file on Copr builders, see https://github.com/fedora-copr/copr/issues/2980

It works fine on my laptop with F39, and I also tried a docker container with F37 and it works there as well. I am trying to investigate what is going on and the deepest I could get was into the generic.py file, specifically:

def _get_source_dir():
    """Decide which directory to run licensecheck on. This can be..."
    ...
    globs = glob(s)
    if globs:
        msg = "Checking patched sources after %prep for licenses."
        source_dir = globs[0]
    ...

On my system the globs looks like this:

['/var/lib/mock/fedora-39-x86_64/root/builddir/build/BUILD/undici-5.27.2',
 '/var/lib/mock/fedora-39-x86_64/root/builddir/build/BUILD/undici-5.27.2-SPECPARTS']

The first directory contains the sources and the second directory is empty. However, on Copr builders, the directories are reversed

['/var/lib/mock/fedora-39-x86_64/root/builddir/build/BUILD/undici-5.27.2-SPECPARTS',
 '/var/lib/mock/fedora-39-x86_64/root/builddir/build/BUILD/undici-5.27.2']

and therefore the source_dir is an empty directory. Do you know what is going on? Is this even a fedora-reivew issue?

Please let me know what you think.