mvall

#!/usr/bin/env python
#=======================================================================
"""
Rename or copy multiple files according to a pair pf patterns
"""
#=======================================================================
from __future__ import print_function
import glob
import sys
import os
import re
import shlex
import subprocess

def main():
    myname = os.path.basename(sys.argv[0])
    import argparse
    ap = argparse.ArgumentParser()
    ap.add_argument('-v','--verbose', action='store_true',
                    help='Show commands being executed')
    ap.add_argument('-n','--no-action', action='store_true',
                    help='Show command bu to not execute it')
    ap.add_argument('frompattern',
                    help='Pattern matching files (using %% as placeholders)')
    ap.add_argument('topattern',
                    help='Pattern for new name (using %% as placeholders)')
    args = ap.parse_args()
    cmd = 'mv' if ap.prog.startswith('mv') else 'cp'

    from_parts = args.frompattern.split('%')
    to_parts = args.topattern.split('%')
    if len(from_parts) != len(to_parts):
        ap.error('Different numbers of %% placeholders' % myname)
    glob_pat = '*'.join([glob.escape(part) for part in from_parts])
    #print(glob_pat)
    rx_pat = '(.*?)'.join([re.escape(part) for part in from_parts]) + '$'
    rx = re.compile(rx_pat)
    #print(rx_pat)

    for from_name in glob.glob(glob_pat):
        m = rx.match(from_name)
        if not m:
            raise Exception('Filename %s does not match regexp' % from_name)
        from_vals = m.groups()
        to_name = ''
        for i, part in enumerate(to_parts):
            if i > 0:
                to_name += m.group(i)
            to_name += part

        command = [cmd, from_name, to_name]
        if args.verbose or args.no_action:
            sh_command = ' '.join([shlex.quote(arg)
                                   for arg in command])
            print(sh_command)
        if not args.no_action:
            subprocess.call(command)

main()