Released on 2022-10-14.

Mock v3.2 changes:

• The cleanup_on_success=False needs to use rpmbuild --noclean to avoid an automatic cleanup of %{buildroot} by RPM (we started using --noclean in v3.1. The --noclean option is though not available on old systems (EL6 and older). The new Mock v3.2 fixes this, and stops using --noclean for old target builds. Related rhbz#2105393.

• The mock --list-chroots now performs much faster; the amount of fork() calls while listing the chroot configuration files was minimized.

• Files installed into /var/lib/mock and /var/cache/mock no longer get the SGID bit (which enforces mock group ownership). The bit shouldn’t be needed (by common sense, but also given our testsuite is green), so we dropped the bit. Should you newly have any inconvenience, please report.

• The simple_load_config() library method (used e.g. by Fedora Review) was simplified so it doesn’t attempt to elevate the mock group process ownership. Processing Mock’s configuration is equal to evaluating a Python code, so for security reasons we artificially fail the simple_load_config() call if executed by root, rhbz#2080735.

• Error() (Exception) code was rewritten a bit, so the raised exceptions are easily (de-)serializable by the Python pickle library. We can then e.g. naturally handle the exceptions raised by Mock’s fork() sub-processes (exceptions from child processes are pickle-deserialized). This change could potentially affect the mockbuild:get_class_by_code() users, if any.

• Mock now better detects the Docker environment run on top of Control Group V2, PR#986.

• The --use-bootstrap-image now works even if podman produces an unexpected stderr output, PR#954.

• The mock-scm package newly runtime-depends on the rpkg-util package. This package is used for building source RPMs from DistGit, fixes rhbz#2128212.

• Mock starts using the SPDX format of License field in the spec file.

Following contributors contributed to this release:

• Achal Velani
• Michael Ho
• Miroslav Suchý

Thank you.