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check_thumbs.py
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check_thumbs.py
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import glob
import os
import re
def is_image_file(name):
return name.endswith('.jpg') or name.endswith('jpeg') or name.endswith('png')
def remove_index_and_extension(name):
x = re.search(r"^(\d+)-(.*)\.(.*)$", name)
return x.groups()[1]
def get_prefix(name):
# can not figure out how to capture repeating pattern
x = re.search(r"^(.*)(-thumb-.*)(?:-thumb-.*)", name)
if x is None:
x = re.search(r"^(.*)(-thumb-.*)", name)
return x.groups()[0]
def get_all_image_files(dir):
here = os.getcwd()
os.chdir(dir)
files = glob.glob('*')
os.chdir(here)
return [f for f in files if is_image_file(f)]
def split_thumbs_and_non_thumbs(files):
thumbs = []
non_thumbs = []
for file in files:
if '-thumb-' in file:
thumbs.append(file)
else:
non_thumbs.append(file)
return thumbs, non_thumbs
def check_thumbs(thumbs, non_thumb_set):
check_names = []
for name in thumbs:
inner = remove_index_and_extension(name)
prefix = get_prefix(inner)
if prefix not in non_thumb_set:
check_names.append(name)
if len(check_names) > 0:
print('Found thumb files that do not have a corresponding non-thumb file:', '\n')
print('\n'.join(check_names))
else:
print('All good.')
if __name__ == '__main__':
files = get_all_image_files('output/extracted/')
thumbs, non_thumbs = split_thumbs_and_non_thumbs(files)
assert len(files) == len(thumbs) + len(non_thumbs)
non_thumb_set = set(map(remove_index_and_extension, non_thumbs))
assert len(non_thumb_set) == len(non_thumbs), 'There are duplicate non thumb files'
check_thumbs(thumbs, non_thumb_set)