Merge pull request #232 from benvia/feature-cron

Adds a cronjob-like mechanism

Author: tiredofit

install/etc/services.available/10-db-backup/run

@@ -16,18 +16,45 @@ else
     current_time=$(date +"%s")
     today=$(date +"%Y%m%d")
 
+    print_debug "******** Begin DB_DUMP_BEGIN ********"
+    print_debug "Current time $current_time"
+
     if [[ $DB_DUMP_BEGIN =~ ^\+(.*)$ ]]; then
+        print_debug "DB_DUMP_BEGIN is a jump of minute starting with +."
         waittime=$(( ${BASH_REMATCH[1]} * 60 ))
         target_time=$(($current_time + $waittime))
-    else
+    elif [[ $DB_DUMP_BEGIN =~ ^[0-9]+$ ]]; then
+        print_debug "DB_DUMP_BEGIN is an integer."
+        
         target_time=$(date --date="${today}${DB_DUMP_BEGIN}" +"%s")
         if [[ "$target_time" < "$current_time" ]]; then
             target_time=$(($target_time + 24*60*60))
         fi
         waittime=$(($target_time - $current_time))
+    elif [[ $DB_DUMP_BEGIN =~ ^([0-9]{4})-([0-9]{2})-([0-9]{2})[[:space:]]([0-9]{2}):([0-9]{2}):([0-9]{2})$ ]];
+    then
+        # Calculate DB_DUMP_BEGIN time in seconds
+        dump_time=$(date -d "${DB_DUMP_BEGIN}" +%s)
+        print_debug "Dump time = $dump_time"
+
+        # Calculate the difference in seconds
+        waittime=$((dump_time - current_time))
+        print_debug "Difference in seconds: $waittime"
+
+        if (( $waittime < 0 )); then
+            waittime=$(( ($waittime + ($DB_DUMP_FREQ - 1)) / ($DB_DUMP_FREQ * 60) ))
+            waittime=$(( $waittime * -1 ))
+            print_debug "Difference in seconds (rounded) waittime is in the past : $waittime"
+        fi
+
+        target_time=$(($current_time + $waittime))
+        print_debug "Target time = $target_time"
+    else
+        print_info "DB_DUMP_BEGIN is not starting with + or is not an integer or is not in the correct format (YYYY-mm-dd hh:mm:ss)."
     fi
-    print_debug "Wait Time: ${waittime} Target time: ${target_time} Current Time: ${current_time}"
-    print_info "Next Backup at $(date -d @${target_time} +"%Y-%m-%d %T %Z")"
+
+    print_debug "******** End DB_DUMP_BEGIN ********"
+    print_info "Wait Time: ${waittime} Target time: $(date -d @${target_time} +"%Y-%m-%d %T %Z") Current Time: $(date -d @${current_time} +"%Y-%m-%d %T %Z")"
     sleep $waittime
 fi