Update every day a whole day as fallback (#372)

This redundancy in updating the data should bring more stability
in being in sync with upstream data.

cron.sh

@@ -3,11 +3,20 @@
 # explicitly without "-e" for it should not exit immediately when failed but write a mail
 set -uo pipefail # See http://redsymbol.net/articles/unofficial-bash-strict-mode/
 # Execute via crontab by hduser@weywot1:
-# 00 1 * * * ssh sol@quaoar1 "cd /home/sol/git/lobid-gnd ; bash -x cron.sh >> logs/cron.sh.log 2>&1"
+# 00 1 * * * [removed]  git/lobid-gnd ; bash -x cron.sh >> logs/cron.sh.log 2>&1"
+# 50 05 * * * [removed] git/lobid-gnd ; bash -x cron.sh 1day >> logs/cron.sh.log 2>&1"
+
 
 IFS=$'\n\t'
 RECIPIENT=lobid-admin
-sbt -mem 4000 "runMain apps.ConvertUpdates $(tail -n1 GND-lastSuccessfulUpdate.txt)"
+START_UPDATE=$(tail -n1 GND-lastSuccessfulUpdate.txt)
+unset http_proxy
+
+if [ -n "${1-}" ] && [ "$1" = "1day" ]; then
+  START_UPDATE=$(date --date='1 day ago'  +%Y-%m-%dT%H:%M:%SZ)
+fi
+
+sbt -mem 4000 "runMain apps.ConvertUpdates ${START_UPDATE}"
 
 if [ -s GND-updates.jsonl ]; then
   sbt -Dindex.prod.name=gnd-test "runMain apps.Index updates"
@@ -19,3 +28,4 @@ if [ -s GND-updates.jsonl ]; then
     bash ./checkCompactedProperties.sh gnd
   fi
 fi
+