42 lines
1.1 KiB
Python
42 lines
1.1 KiB
Python
import argparse
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import PIL.Image
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import sys
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from voussoirkit import pathclass
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from voussoirkit import winglob
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def grayscale(filename, *, inplace=False):
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filename = pathclass.Path(filename)
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basename = filename.replace_extension('').basename
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if basename.endswith('_gray'):
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return
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if inplace:
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new_filename = filename
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else:
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basename += '_gray'
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new_filename = filename.parent.with_child(basename).add_extension(filename.extension)
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image = PIL.Image.open(filename.absolute_path).convert('LA')
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print(f'{new_filename.relative_path}')
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image.save(new_filename.absolute_path)
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def grayscale_argparse(args):
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filenames = winglob.glob(args.pattern)
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for filename in filenames:
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grayscale(filename, inplace=args.inplace)
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def main(argv):
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument('pattern')
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parser.add_argument('--inplace', action='store_true')
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parser.set_defaults(func=grayscale_argparse)
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args = parser.parse_args(argv)
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return args.func(args)
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if __name__ == '__main__':
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raise SystemExit(main(sys.argv[1:]))
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