mirror of
https://github.com/arsenetar/dupeguru.git
synced 2024-11-16 20:29:02 +00:00
85 lines
2.7 KiB
Python
85 lines
2.7 KiB
Python
# Created By: Virgil Dupras
|
|
# Created On: 2008-01-08
|
|
# Copyright 2015 Hardcoded Software (http://www.hardcoded.net)
|
|
|
|
# This software is licensed under the "GPLv3" License as described in the "LICENSE" file,
|
|
# which should be included with this package. The terms are also available at
|
|
# http://www.gnu.org/licenses/gpl-3.0.html
|
|
|
|
"""When you have to deal with names that have to be unique and can conflict together, you can use
|
|
this module that deals with conflicts by prepending unique numbers in ``[]`` brackets to the name.
|
|
"""
|
|
|
|
import re
|
|
import os
|
|
import shutil
|
|
|
|
from .path import Path, pathify
|
|
|
|
# This matches [123], but not [12] (3 digits being the minimum).
|
|
# It also matches [1234] [12345] etc..
|
|
# And only at the start of the string
|
|
re_conflict = re.compile(r"^\[\d{3}\d*\] ")
|
|
|
|
|
|
def get_conflicted_name(other_names, name):
|
|
"""Returns name with a ``[000]`` number in front of it.
|
|
|
|
The number between brackets depends on how many conlicted filenames
|
|
there already are in other_names.
|
|
"""
|
|
name = get_unconflicted_name(name)
|
|
if name not in other_names:
|
|
return name
|
|
i = 0
|
|
while True:
|
|
newname = "[%03d] %s" % (i, name)
|
|
if newname not in other_names:
|
|
return newname
|
|
i += 1
|
|
|
|
|
|
def get_unconflicted_name(name):
|
|
"""Returns ``name`` without ``[]`` brackets.
|
|
|
|
Brackets which, of course, might have been added by func:`get_conflicted_name`.
|
|
"""
|
|
return re_conflict.sub("", name, 1)
|
|
|
|
|
|
def is_conflicted(name):
|
|
"""Returns whether ``name`` is prepended with a bracketed number."""
|
|
return re_conflict.match(name) is not None
|
|
|
|
|
|
@pathify
|
|
def _smart_move_or_copy(operation, source_path: Path, dest_path: Path):
|
|
"""Use move() or copy() to move and copy file with the conflict management."""
|
|
if dest_path.isdir() and not source_path.isdir():
|
|
dest_path = dest_path[source_path.name]
|
|
if dest_path.exists():
|
|
filename = dest_path.name
|
|
dest_dir_path = dest_path.parent()
|
|
newname = get_conflicted_name(os.listdir(str(dest_dir_path)), filename)
|
|
dest_path = dest_dir_path[newname]
|
|
operation(str(source_path), str(dest_path))
|
|
|
|
|
|
def smart_move(source_path, dest_path):
|
|
"""Same as :func:`smart_copy`, but it moves files instead."""
|
|
_smart_move_or_copy(shutil.move, source_path, dest_path)
|
|
|
|
|
|
def smart_copy(source_path, dest_path):
|
|
"""Copies ``source_path`` to ``dest_path``, recursively and with conflict resolution."""
|
|
try:
|
|
_smart_move_or_copy(shutil.copy, source_path, dest_path)
|
|
except IOError as e:
|
|
if e.errno in {
|
|
21,
|
|
13,
|
|
}: # it's a directory, code is 21 on OS X / Linux and 13 on Windows
|
|
_smart_move_or_copy(shutil.copytree, source_path, dest_path)
|
|
else:
|
|
raise
|