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Fix dataset multiple unzip behavior (#3413)

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Glenn Jocher 2023-06-27 17:14:39 +02:00 committed by GitHub
parent 42057fdc95
commit 05760b04c4
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1 changed files with 10 additions and 1 deletions
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11
ultralytics/yolo/utils/downloads.py
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@ -37,7 +37,7 @@ def is_url(url, check=True):
return False
def unzip_file(file, path=None, exclude=('.DS_Store', '__MACOSX')):
def unzip_file(file, path=None, exclude=('.DS_Store', '__MACOSX'), exist_ok=False):
"""
Unzips a *.zip file to the specified path, excluding files containing strings in the exclude list.
@ -49,6 +49,7 @@ def unzip_file(file, path=None, exclude=('.DS_Store', '__MACOSX')):
file (str): The path to the zipfile to be extracted.
path (str, optional): The path to extract the zipfile to. Defaults to None.
exclude (tuple, optional): A tuple of filename strings to be excluded. Defaults to ('.DS_Store', '__MACOSX').
exist_ok (bool, optional): Whether to overwrite existing contents if they exist. Defaults to False.
Raises:
BadZipFile: If the provided file does not exist or is not a valid zipfile.
@ -61,6 +62,7 @@ def unzip_file(file, path=None, exclude=('.DS_Store', '__MACOSX')):
if path is None:
path = Path(file).parent # default path
# Unzip the file contents
with ZipFile(file) as zipObj:
file_list = [f for f in zipObj.namelist() if all(x not in f for x in exclude)]
top_level_dirs = {Path(f).parts[0] for f in file_list}
@ -68,6 +70,13 @@ def unzip_file(file, path=None, exclude=('.DS_Store', '__MACOSX')):
if len(top_level_dirs) > 1 or not file_list[0].endswith('/'):
path = Path(path) / Path(file).stem # define new unzip directory
# Check if destination directory already exists and contains files
extract_path = Path(path) / list(top_level_dirs)[0]
if extract_path.exists() and any(extract_path.iterdir()) and not exist_ok:
# If it exists and is not empty, return the path without unzipping
LOGGER.info(f'Skipping {file} unzip (already unzipped)')
return path
for f in file_list:
zipObj.extract(f, path=path)