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gallery-dl/gallery_dl/path.py
2016-10-02 13:51:54 +02:00

83 lines
2.9 KiB
Python

# -*- coding: utf-8 -*-
# Copyright 2016 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.
import os
from . import config, text
class PathFormat():
def __init__(self, extractor):
key = ["extractor", extractor.category]
if extractor.subcategory:
key.append(extractor.subcategory)
self.filename_fmt = config.interpolate(
key + ["filename_fmt"], default=extractor.filename_fmt
)
self.directory_fmt = config.interpolate(
key + ["directory_fmt"], default=extractor.directory_fmt
)
self.has_extension = False
self.keywords = {}
self.directory = self.realdirectory = ""
self.path = self.realpath = ""
def open(self):
"""Open file ta 'realpath' and return a corresponding file object"""
return open(self.realpath, "wb")
def exists(self):
"""Return True if 'path' is complete and referse to an existing path"""
if self.has_extension:
return os.path.exists(self.realpath)
return False
def set_directory(self, keywords):
"""Build directory path and create it if necessary"""
segments = [
text.clean_path(segment.format_map(keywords).strip())
for segment in self.directory_fmt
]
self.directory = os.path.join(
self.get_base_directory(),
*segments
)
self.realdirectory = self.adjust_path(self.directory)
os.makedirs(self.realdirectory, exist_ok=True)
def set_keywords(self, keywords):
"""Set filename keywords"""
self.keywords = keywords
self.has_extension = bool(keywords.get("extension"))
if self.has_extension:
self.build_path()
def set_extension(self, extension):
"""Set the 'extension' keyword"""
self.has_extension = True
self.keywords["extension"] = extension
self.build_path()
def build_path(self, sep=os.path.sep):
"""Use filename-keywords and directory to build a full path"""
filename = text.clean_path(self.filename_fmt.format_map(self.keywords))
self.path = self.directory + sep + filename
self.realpath = self.realdirectory + sep + filename
@staticmethod
def get_base_directory():
"""Return the base-destination-directory for downloads"""
bdir = config.get(("base-directory",), default=(".", "gallery-dl"))
if not isinstance(bdir, str):
bdir = os.path.join(*bdir)
return os.path.expanduser(os.path.expandvars(bdir))
@staticmethod
def adjust_path(path):
"""Enable longer-than-260-character paths on windows"""
return "\\\\?\\" + os.path.abspath(path) if os.name == "nt" else path