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contrib: refactor: replace hex_switchEndian in linearize scripts

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Switching the endianness of a hex string `str` can simply be
achieved by `bytes.fromhex(str)[::-1].hex()`, i.e. we can use
that and remove those helper methods.
This commit is contained in:
Sebastian Falbesoner 2022-02-17 22:38:10 +01:00
parent 3f863cfff1
commit 254a63e097
2 changed files with 2 additions and 12 deletions
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7
contrib/linearize/linearize-data.py
View file

@ -20,11 +20,6 @@ from collections import namedtuple
settings = {}
def hex_switchEndian(s):
""" Switches the endianness of a hex string (in pairs of hex chars) """
pairList = [s[i:i+2].encode() for i in range(0, len(s), 2)]
return b''.join(pairList[::-1]).decode()
def calc_hash_str(blk_hdr):
blk_hdr_hash = hashlib.sha256(hashlib.sha256(blk_hdr).digest()).digest()
return blk_hdr_hash[::-1].hex()
@ -43,7 +38,7 @@ def get_block_hashes(settings):
for line in f:
line = line.rstrip()
if settings['rev_hash_bytes'] == 'true':
line = hex_switchEndian(line)
line = bytes.fromhex(line)[::-1].hex()
blkindex.append(line)
print("Read " + str(len(blkindex)) + " hashes")

7
contrib/linearize/linearize-hashes.py
View file

@ -17,11 +17,6 @@ import os.path
settings = {}
def hex_switchEndian(s):
""" Switches the endianness of a hex string (in pairs of hex chars) """
pairList = [s[i:i+2].encode() for i in range(0, len(s), 2)]
return b''.join(pairList[::-1]).decode()
class BitcoinRPC:
def __init__(self, host, port, username, password):
authpair = "%s:%s" % (username, password)
@ -85,7 +80,7 @@ def get_block_hashes(settings, max_blocks_per_call=10000):
sys.exit(1)
assert(resp_obj['id'] == x) # assume replies are in-sequence
if settings['rev_hash_bytes'] == 'true':
resp_obj['result'] = hex_switchEndian(resp_obj['result'])
resp_obj['result'] = bytes.fromhex(resp_obj['result'])[::-1].hex()
print(resp_obj['result'])
height += num_blocks