Batch Rename Files

batch_rename.py

import os
import sys

alpha_enum = "abcdefghijklmnopqrstuvwxyz"
sorted_files = sorted(sys.argv[1:])

def printFiles(files, header="Files:"):
    print(header)
    for i, f in enumerate(files):
        print(f"{i+1}) {os.path.basename(f)}")
    print()

rename_order = []
file_order = list(sorted_files)
printFiles(file_order)
while True:
    rename_order = input("Enter rename order (enter if ok): ")

    if not rename_order:
        break

    rename_order = list(map(lambda x: int(x) - 1, rename_order.split()))
    new_order = []
    for i in rename_order:
        new_order.append(file_order[i])

    for index in sorted(rename_order, reverse=True):
        del file_order[index]

    file_order = list(new_order + file_order)
    printFiles(file_order)

print("\nSample formats -")
print("Prefix: 'prefix_{name}.{ext}'")
print("Suffix: '{name}_suffix.{ext}'")
print("Enum: 'prefix A-{enum} {name}.{ext}'")
format_string = input("Enter format: ")

if not format_string:
    input("Invalid format")
    sys.exit(1)

enum_start = 0
enum_step = 0
enum_num = True
if "{enum}" in format_string:
    enum_start = input("Enum start value (default: 1): ")
    enum_step = input("Enum step (default: 1): ")
    enum_step = 1 if not enum_step else int(enum_step)

    if not enum_start:
        enum_start = "1"

    if enum_start.isalpha():
        enum_num = False
        if enum_start.isupper():
            enum_start = ord(enum_start) - ord('A')
            alpha_enum = alpha_enum.upper()
        else:
            enum_start = ord(enum_start) - ord('a')
    else:
        enum_start = int(enum_start)

renamed_files = []
enum_current = enum_start
for f in file_order:
    path = os.path.split(f)
    name, ext = os.path.splitext(path[-1])

    enum_resolved = enum_current if enum_num else alpha_enum[enum_current]
    new_name = format_string.format(name=name, ext=ext[1:], enum=enum_resolved)

    enum_current += enum_step
    if not enum_num:
        enum_current %= len(alpha_enum)

    renamed_files.append(os.path.join(path[0], new_name))

if len(renamed_files) != len(set(renamed_files)):
    print("This operation will destroy files by giving multiple files the same name")
    sys.exit(1)

printFiles(renamed_files, header="Renamed Files:")

input("Press enter to accept rename and exit")

for i,f in enumerate(renamed_files):
    os.rename(file_order[i], renamed_files[i])