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107 lines
3.9 KiB
Python
107 lines
3.9 KiB
Python
import pathlib
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import os
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import click
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from typing import List
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from PIL import Image
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import pillow_mbm
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def get_decoded_extensions(feature: str = 'open') -> List[str]:
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"""Gets a list of extensions for Pillow formats supporting a supplied feature"""
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Image.init()
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extensions = Image.EXTENSION
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formats = getattr(Image, feature.upper()).keys()
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return [ext for ext, fmt in extensions.items() if fmt in formats]
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decoded_extensions = get_decoded_extensions('save')
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# noinspection PyUnusedLocal
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def validate_decoded_extension(ctx, param, value) -> str:
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"""Check if an extension for a decoded image is valid"""
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if value[0] != '.':
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value = '.' + value
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if value not in decoded_extensions:
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raise click.BadParameter(f'Invalid extension for decoded file. Valid extensions are:\n{decoded_extensions}')
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return value
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def path_pairs(inputs, output, suffix, extension):
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if len(inputs) < 1:
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raise click.BadArgumentUsage('No input files were provided.')
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inpaths = [pathlib.Path(i) for i in inputs]
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if not output:
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# decode in place
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return [(inpath, inpath.with_name(inpath.stem + suffix + extension)) for inpath in inpaths]
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else:
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outpath = pathlib.Path(output)
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if outpath.is_file():
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# decode to a file
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if len(inputs) > 1:
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raise click.BadOptionUsage('output', 'Output is a single file, but multiple input files were provided.')
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if outpath.suffix not in decoded_extensions:
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raise click.BadOptionUsage('output',
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f'File has incorrect extension for decoded file. Valid extensions are:\n'
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f'{decoded_extensions}')
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return [(inpath, outpath) for inpath in inpaths]
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else:
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# decode to directory
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return [(inpath, outpath / (inpath.stem + suffix + extension)) for inpath in inpaths]
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@click.command()
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@click.option('-f/-F', '--flip/--no-flip', default=False, help="Vertically flip image after converting.")
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@click.option('-r/-k', '--remove/--keep', default=False, help="Remove input images after converting.")
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@click.option('-s', '--suffix', type=str, default='',
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help="Suffix to append to output file(s). Ignored if output is a single file.")
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@click.option('-x', '--extension', metavar='EXT',
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callback=validate_decoded_extension,
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type=str, default='.png', show_default=True,
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help="Extension to use for output. "
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"Ignored if output is a single file. Output filetype is deduced from this")
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@click.option('-o', '--output',
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type=click.Path(writable=True), default=None,
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help="Output file or directory. If outputting to a file, input filenames must be only a single item. "
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"By default, files are decoded in place.")
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@click.option('-v', '--verbose', is_flag=True, help="print more information")
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@click.argument('filenames', nargs=-1, type=click.Path(exists=True, readable=True, dir_okay=False))
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@click.version_option()
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def convert_mbm(flip, remove, suffix, extension, output, verbose, filenames):
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"""Decode Kerbal Space Program MBM files"""
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pairs = path_pairs(filenames, output, suffix, extension)
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with click.progressbar(pairs, show_eta=False, show_pos=True,
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item_show_func=lambda x: f'{x[0]}->{x[1]}' if x else '') as bar:
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if verbose:
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bar.is_hidden = True
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for inpath, outpath in bar:
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image = Image.open(inpath)
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if flip:
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image = image.transpose(Image.FLIP_TOP_BOTTOM)
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image.save(outpath)
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if remove:
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os.remove(inpath)
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if verbose:
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print(f'Converting: {inpath} -> {outpath}')
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if verbose:
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print(f'Done: converted {len(pairs)} files')
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if __name__ == '__main__':
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convert_mbm()
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