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gallery-dl/gallery_dl/postprocessor/rename.py

92 lines
2.9 KiB
Python

# -*- coding: utf-8 -*-
# Copyright 2024 Mike Fährmann
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
"""Rename files"""
from .common import PostProcessor
from .. import formatter
import os
class RenamePP(PostProcessor):
def __init__(self, job, options):
PostProcessor.__init__(self, job)
self.skip = options.get("skip", True)
old = options.get("from")
new = options.get("to")
if old:
self._old = self._apply_format(old)
self._new = (self._apply_format(new) if new else
self._apply_pathfmt)
job.register_hooks({
"prepare": self.rename_from,
}, options)
elif new:
self._old = self._apply_pathfmt
self._new = self._apply_format(new)
job.register_hooks({
"skip" : self.rename_to_skip,
"prepare-after": self.rename_to_pafter,
}, options)
else:
raise ValueError("Option 'from' or 'to' is required")
def rename_from(self, pathfmt):
name_old = self._old(pathfmt)
path_old = pathfmt.realdirectory + name_old
if os.path.exists(path_old):
name_new = self._new(pathfmt)
path_new = pathfmt.realdirectory + name_new
self._rename(path_old, name_old, path_new, name_new)
def rename_to_skip(self, pathfmt):
name_old = self._old(pathfmt)
path_old = pathfmt.realdirectory + name_old
if os.path.exists(path_old):
pathfmt.filename = name_new = self._new(pathfmt)
pathfmt.path = pathfmt.directory + name_new
pathfmt.realpath = path_new = pathfmt.realdirectory + name_new
self._rename(path_old, name_old, path_new, name_new)
def rename_to_pafter(self, pathfmt):
pathfmt.filename = name_new = self._new(pathfmt)
pathfmt.path = pathfmt.directory + name_new
pathfmt.realpath = pathfmt.realdirectory + name_new
pathfmt.kwdict["_file_recheck"] = True
def _rename(self, path_old, name_old, path_new, name_new):
if self.skip and os.path.exists(path_new):
return self.log.warning(
"Not renaming '%s' to '%s' since another file with the "
"same name exists", name_old, name_new)
self.log.info("'%s' -> '%s'", name_old, name_new)
os.replace(path_old, path_new)
def _apply_pathfmt(self, pathfmt):
return pathfmt.build_filename(pathfmt.kwdict)
def _apply_format(self, format_string):
fmt = formatter.parse(format_string).format_map
def apply(pathfmt):
return pathfmt.clean_path(pathfmt.clean_segment(fmt(
pathfmt.kwdict)))
return apply
__postprocessor__ = RenamePP