generate.sh

#!/bin/bash

#  generate.sh
#  Version 2.1
#  Script to generate a new bootstrap.dat from a *coin-QT data directory
#  Copyright (c) Felix Friedlander 2014

##DD needs to have folders in it corresponding to the currencies you are going to generate
DD=$HOME

cd $DD

for i in $@
do
    echo "Preparing to generate bootstrap for ${i}"
    WD="${DD}/${i}"
    cd $WD
    
    if [ -e bootstrap.dat ]
    then
        echo "bootstrap.dat exists. It will be deleted and re-created."
        rm -f bootstrap.dat
        
        ##You could do this, but my version is meant to run automatically
        #echo "File already exists."
        #read -p "Overwrite (Y/n)? " -i "y" -n 1 choice
        #if [ $choice = "n" ]
        #then
        #    continue
        #fi
        #rm -f bootstrap.dat
    else
        echo "bootstrap.dat does not exist. It will be created."
    fi
    
    if [ -e bootstrap.dat.xz ]
    then
        echo "bootstrap.dat.xz exists. It will be overwrittten."
        
        ##You could do this, but my version is meant to run automatically
        #echo "File already exists."
        #read -p "Overwrite (Y/n)? " -i "y" -n 1 choice
        #if [ $choice = "n" ]
        #then
        #    continue
        #fi
        #rm -f bootstrap.dat.xz
    else
        echo "bootstrap.dat.xz does not exist. It will be created."
    fi
    
    echo "Concatenating to bootstrap.dat..."
    cat /Users/frief17/Library/Application\ Support/${i}/blocks/blk* > bootstrap.dat
    echo "Done."
    
    echo "Compressing with xz..."
    xz -kf9v bootstrap.dat
    echo "Done."
    
    echo "Marking files up to date..."
    touch bootstrap.dat bootstrap.dat.xz
    echo "Done."
    
    ##OLD METHOD
    ##==========
    ##This method is old, and unneccessarialy slow.
    ##It works, though, so feel free to reuse it.
    #echo "Concatenating blockfiles to bootstrap.dat"
    #for b in $(ls blk*)
    #do
    #    cat $b >> ${WD}/bootstrap.dat
    #done
    #echo "Concatenation complete."
    
    #cd $WD
    #rm -f bootstrap.dat.gz
    
    #echo "Compressing bootstrap.dat using using Lempel-Ziv coding (LZ77)"
    #gzip -9f bootstrap.dat
    #echo "Compression complete."
done