dummy

#! /usr/bin/env python3
"""Dummy VFS for Midnight Commander. Just for a test."""

__version__ = "1.1.0"
__author__ = "Oleg Broytman <phd@phdru.name>"
__copyright__ = "Copyright (C) 2004-2023 PhiloSoft Design"
__license__ = "GPL"


import sys


def log_error(msg):
    sys.stderr.write(msg + '\n')


def error(msg):
    log_error(msg + '\n')
    sys.exit(1)


if len(sys.argv) < 2:
    error("""\
It is not a program - it is a dummy VFS for Midnight Commander.
Put it in $HOME/.mc/extfs.d or /usr/lib/mc/extfs.""")


def mcdummy_list():
    """List the entire VFS"""
    # Ignore the VFS name (sys.argv[2])
    # Emit a dummy listing
    print("-r--r--r-- 1 0 0 0 Jun 13 02:20 file0")
    print("-r--r--r-- 1 0 0 1 Jun 13 02:21 file1")
    print("dr--r--r-- 1 0 0 2 Jun 13 02:22 subdir")
    print("-r--r--r-- 1 0 0 3 Jun 13 02:23 subdir/file3")
    print("-r--r--r-- 1 0 0 4 Jun 13 02:23 subdir/file4")


def mcdummy_copyout():
    """Extract a file from the VFS"""
    # Ignore the VFS name (sys.argv[2])
    dummy_filename = sys.argv[3]
    real_filename = sys.argv[4]

    real_file = open(real_filename, 'a')
    real_file.write("Copy from %s\n" % dummy_filename)
    real_file.write("Copy  to   %s\n" % real_filename)
    real_file.close()


def mcdummy_copyin():
    """Put a file to the VFS"""
    # Ignore the VFS name (sys.argv[2])
    dummy_filename = sys.argv[3]
    real_filename = sys.argv[4]

    real_file = open(real_filename + "-dummy.tmp", 'a')
    real_file.write("Copy from %s\n" % real_filename)
    real_file.write("Copy  to   %s\n" % dummy_filename)
    real_file.close()


def mcdummy_rm():
    """Remove a file from the VFS"""
    # Ignore the VFS name (sys.argv[2])
    dummy_filename = sys.argv[3]

    real_file = open(".dummy.tmp", 'a')
    real_file.write("Remove %s\n" % dummy_filename)
    real_file.close()


def mcdummy_mkdir():
    """Create a directory in the VFS"""
    # Ignore the VFS name (sys.argv[2])
    dummy_dirname = sys.argv[3]

    real_file = open(".dummy.tmp", 'a')
    real_file.write("Create %s\n" % dummy_dirname)
    real_file.close()


def mcdummy_rmdir():
    """Remove a directory from the VFS"""
    # Ignore the VFS name (sys.argv[2])
    dummy_dirname = sys.argv[3]

    real_file = open(".dummy.tmp", 'a')
    real_file.write("Remove %s\n" % dummy_dirname)
    real_file.close()


g = globals()
command = sys.argv[1]
procname = "mcdummy_" + command

if procname not in g:
    error("Unknown command %s" % command)

g[procname]()