diff options
Diffstat (limited to 'contrib/linearize')
| -rwxr-xr-x | contrib/linearize/linearize-data.py | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/contrib/linearize/linearize-data.py b/contrib/linearize/linearize-data.py index 1b7d77f7b4..bcca3b7cea 100755 --- a/contrib/linearize/linearize-data.py +++ b/contrib/linearize/linearize-data.py @@ -15,6 +15,7 @@ import sys import hashlib import datetime import time +import glob from collections import namedtuple from binascii import unhexlify @@ -92,6 +93,30 @@ def mkblockmap(blkindex): blkmap[hash] = height return blkmap +# This gets the first block file ID that exists from the input block +# file directory. +def getFirstBlockFileId(block_dir_path): + # First, this sets up a pattern to search for block files, for + # example 'blkNNNNN.dat'. + blkFilePattern = os.path.join(block_dir_path, "blk[0-9][0-9][0-9][0-9][0-9].dat") + + # This search is done with glob + blkFnList = glob.glob(blkFilePattern) + + if len(blkFnList) == 0: + print("blocks not pruned - starting at 0") + return 0 + # We then get the lexicographic minimum, which should be the first + # block file name. + firstBlkFilePath = min(blkFnList) + firstBlkFn = os.path.basename(firstBlkFilePath) + + # now, the string should be ['b','l','k','N','N','N','N','N','.','d','a','t'] + # So get the ID by choosing: 3 4 5 6 7 + # The ID is not necessarily 0 if this is a pruned node. + blkId = int(firstBlkFn[3:8]) + return blkId + # Block header and extent on disk BlockExtent = namedtuple('BlockExtent', ['fn', 'offset', 'inhdr', 'blkhdr', 'size']) @@ -101,7 +126,9 @@ class BlockDataCopier: self.blkindex = blkindex self.blkmap = blkmap - self.inFn = 0 + # Get first occurring block file id - for pruned nodes this + # will not necessarily be 0 + self.inFn = getFirstBlockFileId(self.settings['input']) self.inF = None self.outFn = 0 self.outsz = 0 |