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import os
import subprocess
import sys
import argparse
from concurrent.futures import (
ProcessPoolExecutor,
as_completed,
)
from zipnn_compress_file import compress_file
import zipnn
sys.path.append(
os.path.abspath(
os.path.join(
os.path.dirname(__file__), ".."
)
)
)
KB = 1024
MB = 1024 * 1024
GB = 1024 * 1024 * 1024
def check_and_install_zipnn():
try:
import zipnn
except ImportError:
print("zipnn not found. Installing...")
subprocess.check_call(
[
sys.executable,
"-m",
"pip",
"install",
"zipnn",
"--upgrade",
]
)
import zipnn
def parse_streaming_chunk_size(
streaming_chunk_size,
):
if str(streaming_chunk_size).isdigit():
final = int(streaming_chunk_size)
else:
size_value = int(
streaming_chunk_size[:-2]
)
size_unit = streaming_chunk_size[
-2
].lower()
if size_unit == "k":
final = KB * size_value
elif size_unit == "m":
final = MB * size_value
elif size_unit == "g":
final = GB * size_value
else:
raise ValueError(
f"Invalid size unit: {size_unit}. Use 'k', 'm', or 'g'."
)
return final
def compress_files_with_suffix(
suffix,
dtype="",
streaming_chunk_size=1048576,
path=".",
delete=False,
r=False,
force=False,
max_processes=1,
):
file_list = []
streaming_chunk_size = (
parse_streaming_chunk_size(
streaming_chunk_size
)
)
directories_to_search = (
os.walk(path)
if r
else [(path, [], os.listdir(path))]
)
files_found = False
for root, _, files in directories_to_search:
for file_name in files:
if file_name.endswith(suffix):
compressed_path = (
file_name + ".znn"
)
if not force and os.path.exists(
compressed_path
):
user_input = (
input(
f"{compressed_path} already exists; overwrite (y/n)? "
)
.strip()
.lower()
)
if user_input not in (
"y",
"yes",
):
print(
f"Skipping {file_name}..."
)
continue
files_found = True
full_path = os.path.join(
root, file_name
)
file_list.append(full_path)
with ProcessPoolExecutor(
max_workers=max_processes
) as executor:
future_to_file = {
executor.submit(
compress_file,
file,
dtype,
streaming_chunk_size,
delete,
True,
): file
for file in file_list[:max_processes]
}
file_list = file_list[max_processes:]
while future_to_file:
for future in as_completed(
future_to_file
):
file = future_to_file.pop(future)
try:
future.result()
except Exception as exc:
print(
f"File {file} generated an exception: {exc}"
)
if file_list:
next_file = file_list.pop(0)
future_to_file[
executor.submit(
compress_file,
next_file,
dtype,
streaming_chunk_size,
delete,
True,
)
] = next_file
if not files_found:
print(
f"No files with the suffix '{suffix}' found."
)
if __name__ == "__main__":
if len(sys.argv) < 2:
print(
"Usage: python compress_files.py <suffix>"
)
print(
"Example: python compress_files.py 'safetensors'"
)
sys.exit(1)
parser = argparse.ArgumentParser(
description="Enter a suffix to compress, (optional) dtype, (optional) streaming chunk size, (optional) path to files."
)
parser.add_argument(
"suffix",
type=str,
help="Specify the file suffix to compress all files with that suffix. If a single file name is provided, only that file will be compressed.",
)
parser.add_argument(
"--float32",
action="store_true",
help="A flag that triggers float32 compression",
)
parser.add_argument(
"--streaming_chunk_size",
type=str,
help="An optional streaming chunk size. The format is int (for size in Bytes) or int+KB/MB/GB. Default is 1MB",
)
parser.add_argument(
"--path",
type=str,
help="Path to files to compress",
)
parser.add_argument(
"--delete",
action="store_true",
help="A flag that triggers deletion of a single file instead of compression",
)
parser.add_argument(
"-r",
action="store_true",
help="A flag that triggers recursive search on all subdirectories",
)
parser.add_argument(
"--recursive",
action="store_true",
help="A flag that triggers recursive search on all subdirectories",
)
parser.add_argument(
"--force",
action="store_true",
help="A flag that forces overwriting when compressing.",
)
parser.add_argument(
"--max_processes",
type=int,
help="The amount of maximum processes.",
)
args = parser.parse_args()
optional_kwargs = {}
if args.float32:
optional_kwargs["dtype"] = 32
if args.streaming_chunk_size is not None:
optional_kwargs[
"streaming_chunk_size"
] = args.streaming_chunk_size
if args.path is not None:
optional_kwargs["path"] = args.path
if args.delete:
optional_kwargs["delete"] = args.delete
if args.r or args.recursive:
optional_kwargs["r"] = args.r
if args.force:
optional_kwargs["force"] = args.force
if args.max_processes:
optional_kwargs["max_processes"] = (
args.max_processes
)
check_and_install_zipnn()
compress_files_with_suffix(
args.suffix, **optional_kwargs
)
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