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@kylef kylef/images.py
Last active Dec 21, 2015

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Search the current directory for unused images. Useful for finding leftover assets from files which exist in Xcode project or in your repository.
# This simple python utility crawls the current directory and finds all images.
# It will then search the directory for files using these images and also mark
# any xcode projects which include these images.
#
# Allowing you to easily find images which are no longer used (or even images
# included in xcode and not used).
#
# Usage, cd into your repository and then run:
#
# curl https://gist.github.com/kylef/6316920/raw/images.py -# | python -
#
# Example output:
# ==> PLVSendButton-background-normal wasn't found.
# ==> PLVSendButton-background-selected wasn't found (in project).
#
# Please note, there may be false positives with image names which are generated
# in code. For example with a PNG sequence:
#
# - image-sequence-1.png
# - image-sequence-2.png
# - image-sequence-1.png
#
# When these are used with something like `[NSString stringWithFormat:@"image-sequence-%d.png"]`.
#
import os
import sys
import logging
logger = logging.getLogger(__name__)
def filewalk(directory):
for filename in os.listdir(directory):
fullpath = os.path.join(directory, filename)
if not filename.startswith('.') and not os.path.islink(fullpath):
if os.path.isdir(fullpath):
for filename in filewalk(fullpath):
yield filename
else:
yield fullpath
if __name__ == '__main__':
if '-v' in sys.argv:
logger.setLevel(logging.DEBUG)
else:
logger.setLevel(logging.INFO)
logger.addHandler(logging.StreamHandler())
images = []
for filename in filewalk('.'):
if filename.endswith('.png') or filename.endswith('.jpeg') or filename.endswith('.jpg') or filename.endswith('.gif'):
filename = os.path.basename(filename).lower()
for string in ('.png', '@2x', '~ipad', '~iphone', '.jpeg', '.jpg', '.gif'):
filename = filename.replace(string, '')
filename = filename.strip()
images.append(filename)
images = set(images) # we want distinct results
logger.debug('\033[94m==> Found {} images.'.format(len(images)))
for imagename in set(images):
matches = []
for filename in filewalk('.'):
if filename.endswith('.png'):
continue
with open(filename, 'r') as f:
for line in f.readlines():
if imagename in line.lower():
matches.append(filename)
break
if len(matches) == 0:
logger.info('\033[94m==> \033[91m{}\033[94m wasn\'t found.'.format(imagename.strip()))
else:
project_matches = 0
for match in matches:
if match.endswith('.pbxproj'):
project_matches += 1
if len(matches) == project_matches:
logger.info('\033[94m==> \033[91m{}\033[94m wasn\'t found (in project).'.format(imagename.strip()))
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