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138 lines
4.2 KiB
138 lines
4.2 KiB
import functools
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import logging
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import os
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from pelican.utils import slugify
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logger = logging.getLogger(__name__)
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@functools.total_ordering
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class URLWrapper:
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def __init__(self, name, settings):
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self.settings = settings
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self._name = name
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self._slug = None
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self._slug_from_name = True
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@property
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def name(self):
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return self._name
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@name.setter
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def name(self, name):
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self._name = name
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# if slug wasn't explicitly set, it needs to be regenerated from name
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# so, changing name should reset slug for slugification
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if self._slug_from_name:
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self._slug = None
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@property
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def slug(self):
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if self._slug is None:
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class_key = '{}_REGEX_SUBSTITUTIONS'.format(
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self.__class__.__name__.upper())
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regex_subs = self.settings.get(
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class_key,
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self.settings.get('SLUG_REGEX_SUBSTITUTIONS', []))
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preserve_case = self.settings.get('SLUGIFY_PRESERVE_CASE', False)
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self._slug = slugify(
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self.name,
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regex_subs=regex_subs,
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preserve_case=preserve_case,
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use_unicode=self.settings.get('SLUGIFY_USE_UNICODE', False)
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)
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return self._slug
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@slug.setter
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def slug(self, slug):
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# if slug is expliticly set, changing name won't alter slug
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self._slug_from_name = False
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self._slug = slug
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def as_dict(self):
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d = self.__dict__
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d['name'] = self.name
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d['slug'] = self.slug
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return d
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def __hash__(self):
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return hash(self.slug)
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def _normalize_key(self, key):
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class_key = '{}_REGEX_SUBSTITUTIONS'.format(
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self.__class__.__name__.upper())
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regex_subs = self.settings.get(
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class_key,
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self.settings.get('SLUG_REGEX_SUBSTITUTIONS', []))
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use_unicode = self.settings.get('SLUGIFY_USE_UNICODE', False)
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preserve_case = self.settings.get('SLUGIFY_PRESERVE_CASE', False)
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return slugify(
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key,
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regex_subs=regex_subs,
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preserve_case=preserve_case,
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use_unicode=use_unicode)
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def __eq__(self, other):
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if isinstance(other, self.__class__):
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return self.slug == other.slug
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if isinstance(other, str):
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return self.slug == self._normalize_key(other)
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return False
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def __ne__(self, other):
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if isinstance(other, self.__class__):
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return self.slug != other.slug
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if isinstance(other, str):
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return self.slug != self._normalize_key(other)
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return True
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def __lt__(self, other):
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if isinstance(other, self.__class__):
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return self.slug < other.slug
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if isinstance(other, str):
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return self.slug < self._normalize_key(other)
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return False
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def __str__(self):
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return self.name
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def __repr__(self):
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return '<{} {}>'.format(type(self).__name__, repr(self._name))
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def _from_settings(self, key, get_page_name=False):
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"""Returns URL information as defined in settings.
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When get_page_name=True returns URL without anything after {slug} e.g.
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if in settings: CATEGORY_URL="cat/{slug}.html" this returns
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"cat/{slug}" Useful for pagination.
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"""
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setting = "{}_{}".format(self.__class__.__name__.upper(), key)
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value = self.settings[setting]
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if not isinstance(value, str):
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logger.warning('%s is set to %s', setting, value)
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return value
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else:
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if get_page_name:
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return os.path.splitext(value)[0].format(**self.as_dict())
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else:
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return value.format(**self.as_dict())
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page_name = property(functools.partial(_from_settings, key='URL',
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get_page_name=True))
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url = property(functools.partial(_from_settings, key='URL'))
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save_as = property(functools.partial(_from_settings, key='SAVE_AS'))
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class Category(URLWrapper):
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pass
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class Tag(URLWrapper):
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def __init__(self, name, *args, **kwargs):
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super().__init__(name.strip(), *args, **kwargs)
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class Author(URLWrapper):
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pass
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