sars-cov-2-genomes-unpack-input.py

import datetime
import os
import tarfile


def main():
    """
    Main - program execute
    """
    print (str(datetime.datetime.now()) + ' Starting ...')
    downloaddir = 'C:/Users/mikehoney/Downloads/'
    datadir = 'C:/Dev/sars-cov-2-genomes/'
    
    for file in os.listdir(downloaddir):
        filename = os.fsdecode(file)
        # process each input .tar.xz file.
        if filename.startswith('metadata_tsv_') and filename.endswith('.tar.xz'):
            print (str(datetime.datetime.now()) + ' Opening: ' + filename)
            tar = tarfile.open(downloaddir + filename, "r:xz")
            for tarinfo in tar:
                print(tarinfo.name, "is", tarinfo.size, "bytes in size and is ", end="")
                if tarinfo.isreg():
                    print("a regular file.")
                elif tarinfo.isdir():
                    print("a directory.")
                else:
                    print("something else.")
            print (str(datetime.datetime.now()) + ' Extracting: ' + filename)
            tar.extractall(path=datadir)
            tar.close()

    print (str(datetime.datetime.now()) + ' Finished!')
    exit()

if __name__ == '__main__':
    main()