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Update file hashing to read blocks instead of whole file #732

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merged 1 commit into from
Oct 31, 2024
Merged

Update file hashing to read blocks instead of whole file #732

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13 changes: 9 additions & 4 deletions lib/ramble/ramble/util/hashing.py
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Original file line number Diff line number Diff line change
Expand Up @@ -10,13 +10,18 @@
import hashlib
import spack.util.spack_json as sjson

BLOCK_SIZE = 1024 * 1024


def hash_file(file_path):
file_hash = None
file_hash = hashlib.sha256()
with open(file_path, "rb") as f:
bytes = f.read()
file_hash = hashlib.sha256(bytes).hexdigest()
return file_hash
while True:
bytes = f.read(BLOCK_SIZE)
if not bytes:
break
file_hash.update(bytes)
return file_hash.hexdigest()


def hash_string(string):
Expand Down