mirror of
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111 lines
3.5 KiB
Python
111 lines
3.5 KiB
Python
# Copyright (c) 2016 Red Hat, Inc.
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in all
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# copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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#
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"""
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GLib Related helper functions
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Originally written by Nils Philippsen in https://pagure.io/modulemd/pull-request/63
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"""
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from six import text_type
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from gi.repository import GLib
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def from_variant_dict(d):
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""" Converts a variant dictionary to a Python dictionary
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"""
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rv = {}
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for key, value in d.items():
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rv[key] = value.unpack()
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return rv
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def variant_str(s):
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""" Converts a string to a GLib.Variant
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"""
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if not isinstance(s, str):
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raise TypeError('Only strings are supported for scalars')
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return GLib.Variant('s', s)
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def variant_list(l):
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""" Converts a list to a GLib.Variant
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"""
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l_variant = list()
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for item in l:
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if item is None:
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item = ''
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if type(item) == str:
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l_variant.append(variant_str(item))
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elif type(item) == text_type:
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l_variant.append(variant_str(item.encode('utf-8')))
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elif type(item) == list:
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l_variant.append(variant_list(item))
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elif type(item) == dict:
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l_variant.append(variant_dict(item))
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elif type(item) == bool:
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l_variant.append(variant_bool(item))
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else:
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raise TypeError('Cannot convert unknown type')
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return GLib.Variant('av', l_variant)
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def variant_bool(b):
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""" Converts a boolean to a GLib.Varant
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"""
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if not isinstance(b, bool):
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raise TypeError('Only booleans are supported')
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return GLib.Variant('b', b)
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def dict_values(d):
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""" Converts each dictionary value to a GLib.Variant
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"""
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if not isinstance(d, dict):
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raise TypeError('Only dictionaries are supported for mappings')
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d_variant = dict()
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for k, v in d.items():
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if v is None:
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v = ''
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if type(v) == str:
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d_variant[k] = variant_str(v)
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elif type(v) == text_type:
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d_variant[k] = variant_str(v.encode('utf-8'))
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elif type(v) == list:
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d_variant[k] = variant_list(v)
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elif type(v) == dict:
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d_variant[k] = variant_dict(v)
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elif type(v) == bool:
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d_variant[k] = variant_bool(v)
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else:
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raise TypeError('Cannot convert unknown type')
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return d_variant
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def variant_dict(d):
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""" Converts a dictionary to a dictionary of GLib.Variant
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"""
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if not isinstance(d, dict):
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raise TypeError('Only dictionaries are supported for mappings')
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d_variant = dict_values(d)
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return GLib.Variant('a{sv}', d_variant)
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