Permalink
Switch branches/tags
Nothing to show
Find file Copy path
Fetching contributors…
Cannot retrieve contributors at this time
executable file 94 lines (69 sloc) 1.89 KB
#!/usr/bin/python
#
# mkbootstrap.py
#
# Distributed under the MIT/X11 software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
#
import sys
import Log
import MemPool
import ChainDb
import cStringIO
import struct
import argparse
from bitcoin.coredefs import NETWORKS
from bitcoin.core import CBlock
from bitcoin.scripteval import *
NET_SETTINGS = {
'mainnet' : {
'log' : '/spare/tmp/mkbootstrap.log',
'db' : '/spare/tmp/chaindb'
},
'testnet3' : {
'log' : '/spare/tmp/mkbootstraptest.log',
'db' : '/spare/tmp/chaintest'
}
}
MY_NETWORK = 'mainnet'
SETTINGS = NET_SETTINGS[MY_NETWORK]
opts = argparse.ArgumentParser(description='Create blockchain datafile')
opts.add_argument('--latest', dest='latest', action='store_true')
args = opts.parse_args()
# to log to a file
# log = Log.Log(SETTINGS['log'])
# stdout logging
log = Log.Log()
mempool = MemPool.MemPool(log)
netmagic = NETWORKS[MY_NETWORK]
chaindb = ChainDb.ChainDb(SETTINGS, SETTINGS['db'], log, mempool, netmagic,
True)
if args.latest:
scan_height = chaindb.getheight()
else:
scan_height = 216116
out_fn = 'bootstrap.dat'
log.write("Outputting to %s, up to height %d" % (out_fn, scan_height))
outf = open(out_fn, 'wb')
scanned = 0
failures = 0
for height in xrange(scan_height+1):
heightidx = ChainDb.HeightIdx()
heightstr = str(height)
try:
heightidx.deserialize(chaindb.db.Get('height:'+heightstr))
except KeyError:
log.write("Height " + str(height) + " not found.")
continue
blkhash = heightidx.blocks[0]
block = chaindb.getblock(blkhash)
ser_block = block.serialize()
outhdr = netmagic.msg_start
outhdr += struct.pack("<i", len(ser_block))
outf.write(outhdr)
outf.write(ser_block)
scanned += 1
if (scanned % 1000) == 0:
log.write("Scanned height %d (%d failures)" % (
height, failures))
log.write("Scanned %d blocks (%d failures)" % (scanned, failures))