-git clone --quiet https://github.com/saltstack-formulas/letsencrypt-formula.git ${F_DIR}/letsencrypt
-( cd letsencrypt && git checkout --quiet tags/"${LETSENCRYPT_TAG}" -b "${LETSENCRYPT_TAG}" )
+test -d letsencrypt && ( cd letsencrypt && git fetch ) \
+ || git clone --quiet https://github.com/saltstack-formulas/letsencrypt-formula.git ${F_DIR}/letsencrypt
+( cd letsencrypt && git checkout --quiet tags/"${LETSENCRYPT_TAG}" )
+
+echo "...logrotate"
+test -d logrotate && ( cd logrotate && git fetch ) \
+ || git clone --quiet https://github.com/saltstack-formulas/logrotate-formula.git ${F_DIR}/logrotate
+( cd logrotate && git checkout --quiet tags/"${LOGROTATE_TAG}" )