xRITDecompress

#!/usr/bin/env python

from pathlib import Path
import argparse

import pyPublicDecompWT
from pyPublicDecompWT import xRITDecompress

parser = argparse.ArgumentParser(
    prog="xRITDecompress",
    description="Command line tool for manual decompression of HRIT/LRIT files.",
)
parser.add_argument("--version", action="version", version="%(prog)s {version}".format(version=pyPublicDecompWT.__version__))
parser.add_argument("-v", "--verbose", help="Verbose mode", action="store_true")
parser.add_argument("-s", dest="file", help="Name of compressed HRIT/LRIT file", type=str)
parser.add_argument("files", help="Name of compressed HRIT/LRIT file(s)", nargs='*', type=str)
args = parser.parse_args()

source_files = list(filter(None, [args.file] + args.files))
if len(source_files) == 0:
    parser.error("No compressed HRIT/LRIT file(s) specified.")

for fn in source_files:
    pt = Path(fn).resolve()
    assert pt.exists()
    with open(pt, mode="rb") as fh:
        xrit = xRITDecompress(fh.read())

    with open(pt.with_name(xrit.getAnnotationText()), mode="wb") as fh:
        fh.write(xrit.data())
    if args.verbose:
        print(f"Decompressed file: {xrit.getAnnotationText()}")