tidy_datadir.sh
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tidy_datadir.sh
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	#!/bin/bash

	if [ -d "$1" ]; then
	cd "$1"
	else
	echo "Usage: $0 <datadir>" >&2
	echo "Removes obsolete Bitcoin database files" >&2
	exit 1
	fi

	LEVEL=0
	if [ -f wallet.dat -a -f addr.dat -a -f blkindex.dat -a -f blk0001.dat ]; then LEVEL=1; fi
	if [ -f wallet.dat -a -f peers.dat -a -f blkindex.dat -a -f blk0001.dat ]; then LEVEL=2; fi
	if [ -f wallet.dat -a -f peers.dat -a -f coins/CURRENT -a -f blktree/CURRENT -a -f blocks/blk00000.dat ]; then LEVEL=3; fi
	if [ -f wallet.dat -a -f peers.dat -a -f chainstate/CURRENT -a -f blocks/index/CURRENT -a -f blocks/blk00000.dat ]; then LEVEL=4; fi

	case $LEVEL in
	0)
	echo "Error: no Bitcoin datadir detected."
	exit 1
	;;
	1)
	echo "Detected old Bitcoin datadir (before 0.7)."
	echo "Nothing to do."
	exit 0
	;;
	2)
	echo "Detected Bitcoin 0.7 datadir."
	;;
	3)
	echo "Detected Bitcoin pre-0.8 datadir."
	;;
	4)
	echo "Detected Bitcoin 0.8 datadir."
	;;
	esac

	FILES=""
	DIRS=""

	if [ $LEVEL -ge 3 ]; then FILES=$(echo $FILES blk????.dat blkindex.dat); fi
	if [ $LEVEL -ge 2 ]; then FILES=$(echo $FILES addr.dat); fi
	if [ $LEVEL -ge 4 ]; then DIRS=$(echo $DIRS coins blktree); fi

	for FILE in $FILES; do
	if [ -f $FILE ]; then
	echo "Deleting: $FILE"
	rm -f $FILE
	fi
	done

	for DIR in $DIRS; do
	if [ -d $DIR ]; then
	echo "Deleting: $DIR/"
	rm -rf $DIR
	fi
	done

	echo "Done."