post_trans_script = '''
#!/bin/bash -e

# This script will be run _after_ upgrade in the presence of an obsoleted ldns-utils
# package. This is useful because the ldns-utils uninstall script will have been run
# _after_ installation of dnst and so the symbolic links that we create will be
# removed, and we have to make sure here that they get put back

FORCE=
# See: https://docs.fedoraproject.org/en-US/packaging-guidelines/Scriptlets/#_syntax
if [ $1 -eq 2 ]; then
    # Upgrade
    FORCE=-f
fi

# Create symbolic links
ln -f -s ${FORCE} /usr/bin/dnst /usr/bin/ldns-keygen
ln -f -s ${FORCE} /usr/bin/dnst /usr/bin/ldns-key2ds
ln -f -s ${FORCE} /usr/bin/dnst /usr/bin/ldns-nsec3-hash
ln -f -s ${FORCE} /usr/bin/dnst /usr/bin/ldns-notify
ln -f -s ${FORCE} /usr/bin/dnst /usr/bin/ldns-signzone
ln -f -s ${FORCE} /usr/bin/dnst /usr/bin/ldns-update
'''

post_uninstall_script = '''
#!/bin/bash -e
#RPM_SYSTEMD_MACROS#

# See: https://docs.fedoraproject.org/en-US/packaging-guidelines/Scriptlets/#_syntax
if [ $1 -eq 0 ] ; then
    # Uninstallation
    # Remove symbolic links
    rm -f /usr/bin/ldns-keygen
    rm -f /usr/bin/ldns-key2ds
    rm -f /usr/bin/ldns-nsec3-hash
    rm -f /usr/bin/ldns-notify
    rm -f /usr/bin/ldns-signzone
    rm -f /usr/bin/ldns-update
fi
'''