From bdb4b78210cfb6bc8a6cda62fc990dd45ec3054c Mon Sep 17 00:00:00 2001 From: Adones Pitogo Date: Tue, 11 Jul 2023 13:31:50 +0800 Subject: [PATCH] build: fix generation of large .vdi images Instead of loading the whole image into the memory when generating the sha256 sum, we load the file in chunks and update the hash incrementally to avoid MemoryError in python. Also remove a stray empty line. Fixes: #13056 Signed-off-by: Adones Pitogo (mention empty line removal, adds Fixes from PR) Signed-off-by: Christian Lamparter --- scripts/json_add_image_info.py | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/scripts/json_add_image_info.py b/scripts/json_add_image_info.py index 3aeb7ba5fc..915e5f6181 100755 --- a/scripts/json_add_image_info.py +++ b/scripts/json_add_image_info.py @@ -13,7 +13,6 @@ if len(argv) != 2: json_path = Path(argv[1]) file_path = Path(getenv("FILE_DIR")) / getenv("FILE_NAME") - if not file_path.is_file(): print("Skip JSON creation for non existing file", file_path) exit(0) @@ -37,7 +36,14 @@ def get_titles(): device_id = getenv("DEVICE_ID") -hash_file = hashlib.sha256(file_path.read_bytes()).hexdigest() + +sha256_hash = hashlib.sha256() +with open(str(file_path),"rb") as f: + # Read and update hash string value in blocks of 4K + for byte_block in iter(lambda: f.read(4096),b""): + sha256_hash.update(byte_block) + +hash_file = sha256_hash.hexdigest() if file_path.with_suffix(file_path.suffix + ".sha256sum").exists(): hash_unsigned = ( -- 2.30.2