def main(argv):
    """ Main routine for the command-line interface to audfprint """
    # Other globals set from command line
    args = docopt.docopt(USAGE, version=__version__, argv=argv[1:])

    # Figure which command was chosen
    poss_cmds = ['new', 'add', 'precompute', 'merge', 'newmerge', 'match', 
                 'list', 'remove']
    cmdlist = [cmdname
               for cmdname in poss_cmds
               if args[cmdname]]
    if len(cmdlist) != 1:
        raise ValueError("must specify exactly one command")
    # The actual command as a str
    cmd = cmdlist[0]

    # Setup output function
    report = setup_reporter(args)

    # Keep track of wall time
    initticks = time.clock()

    # Command line sanity.
    if args["--maxtimebits"]:
        args["--maxtimebits"] = int(args["--maxtimebits"])
    else:
        args["--maxtimebits"] = hash_table._bitsfor(int(args["--maxtime"]))


    # Setup the analyzer if we're using one (i.e., unless "merge")
    analyzer = setup_analyzer(args) if not (
        cmd is "merge" or cmd is "newmerge" 
        or cmd is "list" or cmd is "remove") else None

    precomp_type = 'hashes'

    # Set up the hash table, if we're using one (i.e., unless "precompute")
    if cmd is not "precompute":
        # For everything other than precompute, we need a database name
        # Check we have one
        dbasename = args['--dbase']
        if not dbasename:
            raise ValueError("dbase name must be provided if not precompute")
        if cmd == "new" or cmd == "newmerge":
            # Check that the output directory can be created before we start
            ensure_dir(os.path.split(dbasename)[0])
            # Create a new hash table
            hash_tab = hash_table.HashTable(
                hashbits=int(args['--hashbits']),
                depth=int(args['--bucketsize']),
                maxtime=(1 << int(args['--maxtimebits'])))
            # Set its samplerate param
            if analyzer:
                hash_tab.params['samplerate'] = analyzer.target_sr

        else:
            # Load existing hash table file (add, match, merge)
            if args['--verbose']:
                report([time.ctime() + " Reading hash table " + dbasename])
            hash_tab = hash_table.HashTable(dbasename)
            if analyzer and 'samplerate' in hash_tab.params \
                   and hash_tab.params['samplerate'] != analyzer.target_sr:
                # analyzer.target_sr = hash_tab.params['samplerate']
                print("db samplerate overridden to ", analyzer.target_sr)
    else:
        # The command IS precompute
        # dummy empty hash table
        hash_tab = None
        if args['--precompute-peaks']:
            precomp_type = 'peaks'

    # Create a matcher
    matcher = setup_matcher(args) if cmd == 'match' else None

    filename_iter = filename_list_iterator(
        args['<file>'], args['--wavdir'], args['--wavext'], args['--list'])

    #######################
    # Run the main commmand
    #######################

    # How many processors to use (multiprocessing)
    ncores = int(args['--ncores'])
    if ncores > 1 and not (cmd == "merge" or cmd == "newmerge" or
                           cmd == "list" or cmd == "remove"):
        # merge/newmerge/list/remove are always single-thread processes
        do_cmd_multiproc(cmd, analyzer, hash_tab, filename_iter,
                         matcher, args['--precompdir'],
                         precomp_type, report,
                         skip_existing=args['--skip-existing'],
                         strip_prefix=args['--wavdir'], 
                         ncores=ncores)
    else:
        do_cmd(cmd, analyzer, hash_tab, filename_iter,
               matcher, args['--precompdir'], precomp_type, report,
               skip_existing=args['--skip-existing'], 
               strip_prefix=args['--wavdir'])

    elapsedtime = time.clock() - initticks
    if analyzer and analyzer.soundfiletotaldur > 0.:
        print("Processed "
              + "%d files (%.1f s total dur) in %.1f s sec = %.3f x RT" \
              % (analyzer.soundfilecount, analyzer.soundfiletotaldur,
                 elapsedtime, (elapsedtime/analyzer.soundfiletotaldur)))

    # Save the hash table file if it has been modified
    if hash_tab and hash_tab.dirty:
        # We already created the directory, if "new".
        hash_tab.save(dbasename)


# Run the main function if called from the command line
dataset/ETHPy150Open dpwe/audfprint/audfprint.py/main/original