podcast_update

#!/bin/sh

mp3s=$(mktemp '/tmp/podcast_update_mp3s.XXXXXX')
oggs=$(mktemp '/tmp/podcast_update_oggs.XXXXXX')
missing=$(mktemp '/tmp/podcast_update_missing.XXXXXX')
tmpdir=$(mktemp -d '/tmp/podcast_update_dir.XXXXXX')

git checkout ogg
ls *.ogg | sed 's/ogg$//' | sort >"$oggs"
git checkout master
ls *.mp3 | sed 's/mp3$//' | sort >"$mp3s"
diff "$mp3s" "$oggs" | grep '^<' | awk '{ print($2) }' >"$missing"

for i in $(cat "$missing"); do
	k=$(echo "$i" | sed 's/$/mp3/')
	cp "$k" "$tmpdir"
done

git checkout ogg

for i in $(ls "$tmpdir"); do
	j=$(echo "$i" | sed 's/mp3$/ogg/')
	ffmpeg -i "$tmpdir/$k" -f ogg "$j"
done

rm "$mp3s" "$oggs" "$missing"
rm -r "$tmpdir"