implement automatic removal of downloaded files after 4 days, streamline download routine

download_latest.sh

@@ -1,9 +1,10 @@
 #!/usr/bin/bash
 link=$(curl -s https://www.ndr.de/radiomv/podcast4418.xml | grep enclosure | cut -d'"' -f2)
+# break if download link is empty
+[[ $link ]] || exit 0
 wget -q -O new.mp3 $link
 md5sum=$(md5sum new.mp3 | cut -d" " -f1)
 if [[ $( ls files | grep $md5sum) ]]; then rm new.mp3 ; exit 0 ; fi
-newname=$(date +%Y-%m-%d-%H-%M)-${md5sum}.mp3
-mv new.mp3 files/$newname
+mv new.mp3 files/$(date +%Y-%m-%d-%H-%M)-${md5sum}.mp3
 
 python genfeed.py

genfeed.py

@@ -4,7 +4,7 @@ import rfeed
 import datetime
 import os
 
-MAXFILEAGE_IN_DAYS = 14
+MAXFILEAGE_IN_DAYS = 4
 
 
 items = []
@@ -18,15 +18,10 @@ for file in os.listdir("files"):
     hour = int(hour)
     minute = int(minute)
 
-    # remove old file
-#    if datetime.datetime(year, month, day, hour, minute) \
-#        + datetime.timedelta(MAXFILEAGE_IN_DAYS) < datetime.datetime.now():
-#        print(f"{file} identified as old - DELETING")
-#        print(datetime.datetime(year, month, day, hour, minute))
-#        print(datetime.timedelta(MAXFILEAGE_IN_DAYS))
-#        print(datetime.datetime.now())
-#        #os.remove(f"file/{file}")
-#        continue
+    # remove old files
+    if datetime.datetime.now() -  datetime.datetime(year, month, day, hour, minute) > datetime.timedelta(MAXFILEAGE_IN_DAYS):
+        os.remove(f"files/{file}")
+        continue
 
     items.append(rfeed.Item(
         title=f"Regionalnachrichten {day:0>2d}.{month:0>2d}.{year} {hour:0>2d}:{minute:0>2d}",