preinstall scriptlet (using /bin/sh):
# check for existence of mock group, create it if not found
getent group mock > /dev/null || groupadd -f -g 135 -r mock
exit 0
postinstall scriptlet (using /bin/sh):
if [ -s /etc/os-release ]; then
    # fedora and rhel7+
    if grep -Fiq Rawhide /etc/os-release; then
        ver=rawhide
    # mageia
    elif [ -s /etc/mageia-release ]; then
        if grep -Fiq Cauldron /etc/mageia-release; then
           ver=cauldron
        fi
    else
        ver=$(source /etc/os-release && echo $VERSION_ID | cut -d. -f1 | grep -o '[0-9]\+')
    fi
else
    # something obsure, use buildtime version
    ver=8
fi
if [ -s /etc/mageia-release ]; then
    mock_arch=$(sed -n '/^$/!{$ s/.* \(\w*\)$/\1/p}' /etc/mageia-release)
else
    mock_arch=$(python3 -c "import dnf.rpm; import hawkey; print(dnf.rpm.basearch(hawkey.detect_arch()))")
fi
cfg=epel-$ver-${mock_arch}.cfg
if [ -e /etc/mock/$cfg ]; then
    if [ "$(readlink /etc/mock/default.cfg)" != "$cfg" ]; then
        ln -s $cfg /etc/mock/default.cfg 2>/dev/null || ln -s -f $cfg /etc/mock/default.cfg.rpmnew
    fi
else
    echo "Warning: file /etc/mock/$cfg does not exist."
    echo "         unable to update /etc/mock/default.cfg"
fi
: