snapshot

#!/bin/bash
set -e
trap "exit" INT
OPTIND=1
installdeps=1
# If passed -d flag, do not download dependencies
while getopts "d" opt; do
case "$opt" in
d) installdeps=0
;;
esac
done
shift $((OPTIND-1))
[ "$1" = "--" ] && shift
echo "Hello, $USER. We're going to create a snapshot of the blockchain"
echo "Make sure you don't have any other blockparser .txt files"
echo "from past snapshots in your blockparser folder"
if [ $installdeps -eq 1 ]; then
echo "First, we'll download libssl, g++, libboost, libsparsehash, git, perl deps"
sudo apt-get install libssl-dev build-essential g++-4.4 libboost-all-dev libsparsehash-dev git-core bc openssl perl curl
fi
# Clone blockparser-memoryLean if the directory doesn't already exist
if [ ! -d "blockparser-memoryLean" ]; then
echo "Downloading blockparser (by znort987) memory lean version"
git clone git://github.com/joeykrug/blockparser-memoryLean.git Camera
fi
cd Camera
if [ -f "parser" ]; then
make clean
fi
echo "Making block parser"
make
echo " "
echo "Please enter the block number you want to do a snapshot of,"
echo "followed by an enter"
read block_number
echo " "
echo "Then enter the number of addresses you want"
echo "to parse followed by an enter: "
read num_addresses
./parser allBalances -a "$block_number" -l "$num_addresses" > allBalancesUpTo"$block_number".txt
echo " "
echo "Now we have all btc addresses with hash 160 and some base 58 addresses"
echo "We want all hash 160s and a list of balances, then we will convert all the hash 160 into base 58"
echo " "
awk '{print $1}' allBalancesUpTo"$block_number".txt > balances.txt
awk '{print $2}' allBalancesUpTo"$block_number".txt > hash160.txt
#Removing excess gunk at top of files
ex -c ':1d' -c ':wq' balances.txt
ex -c ':1d' -c ':wq' balances.txt
ex -c ':1d' -c ':wq' balances.txt
ex -c ':1d' -c ':wq' hash160.txt
ex -c ':1d' -c ':wq' hash160.txt
ex -c ':1d' -c ':wq' hash160.txt
balance_total=0.0
addBalances() {
while read line
do
if [ "$line" != "" ]
then
balance_total=$(echo "$balance_total + $line" | bc)
fi
done <$1
}
base58=({1..9} {A..H} {J..N} {P..Z} {a..k} {m..z})
EncodeBase58() {
# 58 =0x3A
bc <<<"ibase=16; n=${1^^}; while(n>0) { n%3A ; n/=3A }" |
tac |
while read n
do echo -n ${base58[n]}
done
}
Hash160ToAddress() {
printf %34s $(EncodeBase58 "00$1$(checksum "00$1")")|
sed "s/ /1/g"
}
checksum() {
xxd -p -r <<<"$1" |
openssl dgst -sha256 -binary |
openssl dgst -sha256 -hex |
cut -d\  -f2 |
sed -r "s/^((..){4}).*/\1/"
}
echo "Now converting hash160 into base 58"
echo "This will take a few hours, don't give up!"
echo "Go watch some movies or do something else"
echo ""
while read line
do
Hash160ToAddress $line >> pubAddresses.txt
echo "" >> pubAddresses.txt
done <hash160.txt
#removing \n from eof
sudo sed -i '$ d' pubAddresses.txt
#Add up the number of claims and get a total claim value
addBalances balances.txt

while read line
do
 if [ "$line" != "" ]
 then
    x=$(echo "$line*100000000" | bc)
    echo "$x"
 fi
done < balances.txt > satoshiBalances.txt

echo "Converting into a .txt snapshot"
paste satoshiBalances.txt hash160.txt > intermediary.txt
paste intermediary.txt pubAddresses.txt > snapshotToImport.txt

#removing \n from eof
sudo sed -i '$ d' snapshotToImport.txt

cp snapshotToImport.txt snapshot.txt
echo "Adding some relevant info regarding block hash & num of claims+amt"
echo "To the snapshot.txt file"
echo "Claim addresses & balances"|cat - snapshot.txt > /tmp/out && mv /tmp/out snapshot.txt
echo "Number of claims: "$block_number""|cat - snapshot.txt > /tmp/out && mv /tmp/out snapshot.txt
echo "Total claim value: "$balance_total""|cat - snapshot.txt > /tmp/out && mv /tmp/out snapshot.txt
#Get the block hash then put it here!
echo ""
echo "Fetching the blockhash"
block_hash=$(curl 'https://blockexplorer.com/q/getblockhash/'"$block_number")
echo "Block hash: "$block_hash""|cat - snapshot.txt > /tmp/out && mv /tmp/out snapshot.txt
echo "Version: 01"|cat - snapshot.txt > /tmp/out && mv /tmp/out snapshot.txt
echo "Done!"