split cron config in pieces

Makefile

@@ -1,7 +1,8 @@
 
 include config.mk
 
-RASPI_REMOTE?=${RASPI_USER}@${RASPI_IP}
+config.mk:
+	cp config.mk.j2 config.mk
 
 run:
 	ssh pi@${RASPI_IP} "cd ${DEPLOY_DIR};./bin/simpi.py ${ARGS}"

config.mk.j2

@@ -2,4 +2,7 @@
 RASPI_IP?={{ RASPI_IP }}
 RASPI_USER?={{ RASPI_USER }}
 DEPLOY_DIR?={{ DEPLOY_DIR }}
-CRON_TIMER?=*/30 * * * * root ${DEPLOY_DIR}/bin/simpi.py eink_quote_qr
+RASPI_REMOTE?=${RASPI_USER}@${RASPI_IP}
+CRON_T?=*/30 * * * *
+CRON_USER?=root
+CRON_TIMER?=${CRON_T} ${CRON_USER} ${DEPLOY_DIR}/bin/simpi.py eink_quote_qr