Quality of life improvements (#17)

- Removed quotation marks with mounting volumes in docker-compose section.
- Replaced INFO prefix with each echo with a timestamp.
  - Subsequently, echoes that have a timestamp at the end have been adjusted to remove them.
- When deleting, it first checks if there are files to delete.
  - An appropriate echo will be shown in both circumstances.

entrypoint.sh

@@ -6,7 +6,7 @@ LOGS_FILE="/app/log/backup.log"
 
 # If passed "manual", run backup script once ($1 = First argument passed).
 if [ "$1" = "manual" ]; then
-    echo "[INFO] Running one-time, started at $(date +"%F %r")."
+    echo "[$(date +"%F %r")] Running one-time."
     $BACKUP_CMD
     exit 0
 fi
@@ -15,16 +15,16 @@ fi
 if [ "$(id -u)" -eq 0 ]; then
     # Clear cron jobs.
     echo "" | crontab -
-    echo "[INFO] Cron jobs cleared."
+    echo "[$(date +"%F %r")] Cron jobs cleared."
 
     # Add backup script to cron jobs.
     (crontab -l 2>/dev/null; echo "$CRON_TIME $BACKUP_CMD >> $LOGS_FILE 2>&1") | crontab -
-    echo "[INFO] Added backup script to cron jobs."
+    echo "[$(date +"%F %r")] Added backup script to cron jobs."
 
     # Add delete script to cron jobs if DELETE_AFTER is not null and is greater than 0.
     if [ -n "$DELETE_AFTER" ] && [ "$DELETE_AFTER" -gt 0 ]; then
         (crontab -l 2>/dev/null; echo "$CRON_TIME $DELETE_CMD >> $LOGS_FILE 2>&1") | crontab -
-        echo "[INFO] Added delete script to cron jobs."
+        echo "[$(date +"%F %r")] Added delete script to cron jobs."
     fi
 fi
 
@@ -39,5 +39,5 @@ if [ "$(id -u)" -eq 0 ]; then
     exec su-exec app:app "$0" "$@"
 fi
 
-echo "[INFO] Running automatically (${CRON_TIME}), started at $(date +"%F %r")." > "$LOGS_FILE"
+echo "[$(date +"%F %r")] Running automatically (${CRON_TIME})." > "$LOGS_FILE"
 tail -F "$LOGS_FILE" # Keeps terminal open and writes logs.