Collects media files from mods/games and puts them in a media directory, also creates an index.mth file in the MTHS format

collectstatic.sh

#!/bin/bash

###### Options ######
MINETESTDIR=/home/username/minetest
GAMENAME=minetest_game
WORLDDIR=none
MEDIADIR=./media
LEGACY_SYMLINKS=0

# When settings this up be aware that the Minetest client
# will send a POST request to index.mth. You need to configure
# your web server to serve the file on POST requests for this to work.
#####################

die () {
	echo "$1" >&2
	exit 1
}

collect_from () {
	echo "Processing media from: $1"
	find -L "$1" -type f -name "*.png" -o -name "*.ogg" -o -name "*.x" -o -name "*.b3d" | while read f; do
		basename "$f"
		hash=`openssl dgst -sha1 <"$f" | cut -d " " -f 2`
		cp "$f" $MEDIADIR/$hash
		[ $LEGACY_SYMLINKS -eq 1 ] && ln -nsf $hash $MEDIADIR/`basename "$f"`
	done
}

[ -d "$MINETESTDIR" ] || die "Specify a valid Minetest directory!"
which openssl &>/dev/null || die "OpenSSL not installed."

mkdir -p $MEDIADIR

[ ! $GAMENAME == none ] && collect_from "$MINETESTDIR/games/$GAMENAME/mods"
[ ! "$WORLDDIR" == none ] && collect_from "$WORLDDIR/worldmods"
[ -d "$MINETESTDIR/mods" ] && collect_from "$MINETESTDIR/mods"

printf "Creating index.mth... "
printf "MTHS\x00\x01" >$MEDIADIR/index.mth
find $MEDIADIR -type f -not -name index.mth | while read f; do
	openssl dgst -binary -sha1 <$f >>$MEDIADIR/index.mth
done
echo "done"

I made this as an alternative: https://github.com/ShadowNinja/mt_media_collector

I'd like to edit this a little and share - what license do you wish to detail please?