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Just a little bash podcatcher I'm working on. Wordpress.com didn't like some of the code, so I'm putting it here.

Something

  1. #!/bin/sh
  2. # Created by Lehman Black - http://dosnlinux.wordpress.com
  3.  
  4. # podthingy - the podcatching thingy
  5. # name suggestions welcome ;)
  6.  
  7. CWD=`pwd`
  8.  
  9. # TODO: make an "unlistened" folder
  10. # TODO: integrate into SVN repo
  11.  
  12. # podcasts should be stored in separate folders under $PODCAST_ROOT
  13. # each podcast directory should have a *.list and *.info file
  14.  
  15. # sample info file
  16. #PODCAST="The Java Posse"
  17. #TOPIC="Java news"
  18. #HOMEPAGE="http://javaposse.com"
  19. #FEED="http://feeds.feedburner.com/javaposse"
  20. #LICENSE="Creative Commons"
  21. #ALBUM="The Java Posse"
  22. #ARTIST="Tor Norbye, Carl Quinn, Joe Nuxoll, Dick Wall"
  23. #GENRE="Podcast"
  24. # end info file
  25.  
  26. PODCAST_ROOT=$HOME
  27.  
  28. # make sure it works on folders only
  29. for PODCAST in $PODCAST_ROOT/*/
  30. do
  31.         if ! [ -f $PODCAST/*.info ]
  32.         then
  33.                 # skip if this is not a podcast directory
  34.                 continue
  35.         fi
  36.  
  37.         INFO_FILE=$PODCAST/*.info
  38.         LIST_FILE=$PODCAST/*.list
  39.  
  40.         PODNAME=`grep PODCAST $INFO_FILE | cut -d \" -f2`
  41.  
  42.         echo "Podcast: $PODNAME"
  43.         echo
  44.  
  45.         # preserve origional *.list until everything's finished downloading
  46.         TMP=`mktemp -t podcast.XXXXXX`
  47.         cat $LIST_FILE > $TMP
  48.  
  49.         echo -e "\tScanning feed for new episodes..."
  50.         echo
  51.  
  52.         FEED=`grep FEED $INFO_FILE | cut -d \" -f2`
  53.         FEED_ITEMS=`wget -q -O - $FEED | \
  54.                                 awk -F '<' '/url=/{print $NF}' | \
  55.                                 grep 'url=' | \
  56.                                 sed -e 's/.*url=\"//' \
  57.                                         -e 's/\".*//'`
  58.         NEW_ITEMS=""
  59.        
  60.         for NEW in $FEED_ITEMS
  61.         do
  62.                 if ! ( grep -q $NEW $LIST_FILE )
  63.                 then
  64.                         echo -e "\tNEW: $NEW"
  65.                         NEW_ITEMS="$NEW_ITEMS $NEW"
  66.                 fi
  67.         done
  68.  
  69.         # TODO count number of new episodes
  70.  
  71.         # skip if there are no podcasts to download
  72.         if [ -z `echo $NEW_ITEMS | tr -d '[:space:]'` ]
  73.         then
  74.                 echo "Podcast up to date"
  75.                 echo
  76.  
  77.                 rm $TMP
  78.  
  79.                 continue
  80.         fi
  81.  
  82.         echo
  83.  
  84.         # download the new episodes
  85.         for EPISODE in $NEW_ITEMS
  86.         do
  87.                 echo -ne "\tDownloading $EPISODE... "
  88.  
  89.                 wget --random-wait -q -c $EPISODE -P $PODCAST
  90.                 echo $EPISODE >> $TMP
  91.  
  92.                 echo "Done."
  93.         done
  94.  
  95.         # put the most recent podcast at the beginning -- hopefully
  96.         echo -e "\tUpdating list file"
  97.         sort -r $TMP > $LIST_FILE
  98.  
  99.         rm $TMP
  100.  
  101.         echo
  102.         echo "Podcast up to date"
  103.         echo
  104. done

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