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#!/opt/local/bin/python3
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#!/usr/bin/python3
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import argparse
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import glob
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import os
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import re
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import subprocess
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import sys
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LEPTON_PATH = '/Users/dsorber/Documents/lepton/lepton'
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# Bash text formatting codes
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BOLD = '\033[1m'
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ENDC = '\033[0m'
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RED = '\033[31m'
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YELLOW = '\033[33m'
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PURPLE = '\033[35m'
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def file_walker(top_path, regex):
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files = []
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for dirpath, dirnames, filenames in os.walk(top_path):
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for filename in filenames:
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fullpath = os.path.join(dirpath, filename)
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if re.search(regex, fullpath, re.IGNORECASE):
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#~ print(fullpath)
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files.append(fullpath)
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for dirname in dirnames:
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file_walker(os.path.join(dirpath, dirname), regex)
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return files
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def do_compress(top_path, remove_orig):
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# Find all *.jpg (or *.jpeg) images (ignoring case)
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images = file_walker(sys.argv[1], '(\.jpg$)|(\.jpeg$)')
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num_images = len(images)
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# Counters to keep track of total compression ratio
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total_uncompressed_bytes = 0
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total_compressed_bytes = 0
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print('Found {:d} *.jpg images'.format(num_images))
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# Iterate over each image and compress it using the lepton binary
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for idx, image in enumerate(images):
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print('Image {:d} of {:d}:'.format(idx + 1, num_images))
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print('\t{:s}'.format(image))
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compressed_image = '{:s}.lep'.format(image)
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cmd = '{:s} "{:s}" "{:s}"'.format(LEPTON_PATH, image, compressed_image)
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#~ rc = subprocess.run(cmd, shell=True)
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#~ if rc.returncode == 0:
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rc = subprocess.call(cmd, shell=True)
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if rc == 0:
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print('{:s}SUCCESS{:s}'.format(BOLD, ENDC))
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total_uncompressed_bytes += os.path.getsize(image)
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total_compressed_bytes += os.path.getsize(compressed_image)
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# Only remove original file if specified
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if remove_orig:
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os.remove(image)
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else:
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print('{:s}{:s}ERROR{:s}'.format(BOLD, RED, ENDC))
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print('\n')
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# Calculate and print total compression ratio
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percent = (float(total_compressed_bytes) / total_uncompressed_bytes) * 100
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print('Total compression is: {:4.2f}%'.format(percent))
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def do_decompress(top_path, remove_orig):
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# Find all *.lep files (ignoring case)
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images = file_walker(sys.argv[1], '\.lep$')
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num_images = len(images)
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print('Found {:d} *.lep files'.format(num_images))
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# Iterate over each image and decompress it using the lepton binary
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for idx, image in enumerate(images):
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print('Image {:d} of {:d}:'.format(idx + 1, num_images))
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print('\t{:s}'.format(image))
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cmd = '{:s} "{:s}" "{:s}"'.format(LEPTON_PATH, image, image[:-4])
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#~ rc = subprocess.run(cmd, shell=True)
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#~ if rc.returncode == 0:
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rc = subprocess.call(cmd, shell=True)
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if rc == 0:
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print('{:s}SUCCESS{:s}'.format(BOLD, ENDC))
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# Only remove original file if specified
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if remove_orig:
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os.remove(image)
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else:
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print('{:s}{:s}ERROR{:s}'.format(BOLD, RED, ENDC))
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print('\n')
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def main():
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# Make sure the specified path to lepton is correct
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if not (os.path.isfile(LEPTON_PATH) and os.access(LEPTON_PATH, os.X_OK)):
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print('{:s}{:s}ERROR:{:s} unable to find lepton executable'
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.format(BOLD, RED, ENDC))
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return -1
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# Parse command line arguments
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parser = argparse.ArgumentParser(description='Lepton Wrapper')
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parser.add_argument('path',
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help='path in which to look for images')
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parser.add_argument('-d', '--decompress', action='store_true',
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default=False, help='decompress *.lep files')
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parser.add_argument('-r', '--remove', action='store_true', default=False,
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help='remove orignal files after compress/decompress')
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args = parser.parse_args()
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# Either compress or decompress depending on mode parameter
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if args.decompress:
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do_decompress(args.path, args.remove==True)
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else:
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do_compress(args.path, args.remove==True)
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if __name__ == '__main__':
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sys.exit(main())
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