From: Adones Pitogo Date: Tue, 11 Jul 2023 05:31:50 +0000 (+0800) Subject: build: fix generation of large .vdi images X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=bdb4b78210cfb6bc8a6cda62fc990dd45ec3054c;p=openwrt%2Fstaging%2Fblocktrron.git 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 --- 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 = (