Open a random File. Default command to use is xdg open random file in current directory (and subdirectories). Modify defaults with the -c/--command and -d/--directory flags.

open_random.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

"""
Open a random file
"""

# TODO:
# - add config file
# - history suppoort

import argparse
import os
import os.path
import random
import re
import subprocess


def build_file_dict(rootdir='.'):
    file_dict = {}
    for root, subdirs, files in os.walk(rootdir):
        for file in files:
            full_path = os.path.abspath(os.path.join(root, file))
            pretty_name = re.sub(r'[-_]', " ", file.rsplit('.', 1)[0])
            file_dict[pretty_name] = full_path
    return file_dict


def pick_random(file_dict):
    random_pick = random.choice(list(file_dict.keys()))
    return random_pick


def run_cmd(cmd, path):
    subprocess.run([cmd, path])


def repeat_to_length(string_to_expand, length):
    return (string_to_expand * (int(length/len(string_to_expand))))[:length]


def get_console_dimensions():
    rows, columns = os.popen('stty size', 'r').read().split()
    return rows, columns


def main(cmd, rootdir):
        file_dict = build_file_dict(rootdir)
        rows, columns = get_console_dimensions()
        print(" [ ] {} [ ] ".format(repeat_to_length('*', int(columns) - 10)))
        print(" [*] Number of options: {} {} [ ] ".format(len(file_dict),
              repeat_to_length(' ', int(columns) - 33)))
        choice = pick_random(file_dict)
        print(" [*] Choice: {} {} [ ] ".format(choice,
              repeat_to_length(' ', int(columns) - len(choice) - 19)))
        print(" [*] File Location: {} {} [ ] ".format(file_dict[choice],
              repeat_to_length(' ', int(columns) - len(file_dict[choice]) - 26)))
        print(" [ ] {} [ ] ".format(repeat_to_length('*', int(columns) - 10)))
        run_cmd(cmd, file_dict[choice])


if __name__ == '__main__':
    argparser = argparse.ArgumentParser()
    argparser.add_argument('-c', '--command', default='xdg-open',
                           help='command to run on randomly picked file. \
                           (default: %(default)s)')
    argparser.add_argument('-d', '--directory', default='.', help='directory \
                           root to search through. (default: %(default)s)')
    args = argparser.parse_args()
    main(args.command, args.directory)