mirror of
https://github.com/mikf/gallery-dl.git
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126 lines
3.1 KiB
Python
126 lines
3.1 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2015-2017 Mike Fährmann
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 2 as
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# published by the Free Software Foundation.
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"""Global configuration module"""
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import sys
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import json
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import os.path
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import logging
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log = logging.getLogger("config")
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# --------------------------------------------------------------------
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# public interface
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def load(*files, format="json", strict=False):
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"""Load JSON configuration files"""
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configfiles = files or _default_configs
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if format == "yaml":
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try:
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import yaml
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parsefunc = yaml.safe_load
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except ImportError:
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log.error("Could not import 'yaml' module")
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return
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else:
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parsefunc = json.load
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for conf in configfiles:
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try:
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path = os.path.expanduser(os.path.expandvars(conf))
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with open(path) as file:
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confdict = parsefunc(file)
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_config.update(confdict)
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except FileNotFoundError:
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if strict:
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log.error("Configuration file '%s' not found", path)
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sys.exit(1)
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except Exception as exception:
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log.warning("Could not parse '%s'", path)
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log.warning(exception)
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if strict:
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sys.exit(2)
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def clear():
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"""Reset configuration to en empty state"""
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globals()["_config"] = {}
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def get(keys, default=None):
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"""Get the value of property 'key' or a default-value if it doenst exist"""
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conf = _config
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try:
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for k in keys:
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conf = conf[k]
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return conf
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except (KeyError, AttributeError):
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return default
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def interpolate(keys, default=None):
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"""Interpolate the value of 'key'"""
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conf = _config
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try:
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for k in keys:
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default = conf.get(keys[-1], default)
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conf = conf[k]
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return conf
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except (KeyError, AttributeError):
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return default
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def set(keys, value):
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"""Set the value of property 'key' for this session"""
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conf = _config
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for k in keys[:-1]:
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try:
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conf = conf[k]
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except KeyError:
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temp = {}
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conf[k] = temp
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conf = temp
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conf[keys[-1]] = value
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def setdefault(keys, value):
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"""Set the value of property 'key' if it doesn't exist"""
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conf = _config
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for k in keys[:-1]:
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try:
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conf = conf[k]
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except KeyError:
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temp = {}
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conf[k] = temp
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conf = temp
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return conf.setdefault(keys[-1], value)
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# --------------------------------------------------------------------
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# internals
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_config = {}
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if os.name == "nt":
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_default_configs = [
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r"~\.config\gallery-dl\config.json",
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r"%USERPROFILE%\gallery-dl\config.json",
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r"~\.gallery-dl.conf",
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r"%USERPROFILE%\gallery-dl.conf",
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]
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else:
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_default_configs = [
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"/etc/gallery-dl.conf",
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"${HOME}/.config/gallery/config.json",
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"${HOME}/.config/gallery-dl/config.json",
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"${HOME}/.gallery-dl.conf",
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]
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