86 lines
3.1 KiB
Python
86 lines
3.1 KiB
Python
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from pelican import signals, contents
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import os.path
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from copy import copy
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from itertools import chain
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'''
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This plugin creates a URL hierarchy for pages that matches the
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directory hierarchy of their sources.
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'''
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class UnexpectedException(Exception): pass
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def get_path(page, settings):
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''' Return the dirname relative to PAGE_PATHS prefix. '''
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path = os.path.split(page.get_relative_source_path())[0] + '/'
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path = path.replace( os.path.sep, '/' )
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# Try to lstrip the longest prefix first
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for prefix in sorted(settings['PAGE_PATHS'], key=len, reverse=True):
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if not prefix.endswith('/'): prefix += '/'
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if path.startswith(prefix):
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return path[len(prefix):-1]
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raise UnexpectedException('Page outside of PAGE_PATHS ?!?')
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def in_default_lang(page):
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# page.in_default_lang property is undocumented (=unstable) interface
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return page.lang == page.settings['DEFAULT_LANG']
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def override_metadata(content_object):
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if type(content_object) is not contents.Page:
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return
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page = content_object
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path = get_path(page, page.settings)
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def _override_value(page, key):
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metadata = copy(page.metadata)
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# We override the slug to include the path up to the filename
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metadata['slug'] = os.path.join(path, page.slug)
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# We have to account for non-default language and format either,
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# e.g., PAGE_SAVE_AS or PAGE_LANG_SAVE_AS
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infix = '' if in_default_lang(page) else 'LANG_'
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return page.settings['PAGE_' + infix + key.upper()].format(**metadata)
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for key in ('save_as', 'url'):
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if not hasattr(page, 'override_' + key):
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setattr(page, 'override_' + key, _override_value(page, key))
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def set_relationships(generator):
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def _all_pages():
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return chain(generator.pages, generator.translations)
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# initialize parents and children lists
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for page in _all_pages():
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page.parent = None
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page.parents = []
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page.children = []
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# set immediate parents and children
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for page in _all_pages():
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# Parent of /a/b/ is /a/, parent of /a/b.html is /a/
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parent_url = os.path.dirname(page.url[:-1])
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if parent_url: parent_url += '/'
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for page2 in _all_pages():
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if page2.url == parent_url and page2 != page:
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page.parent = page2
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page2.children.append(page)
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# If no parent found, try the parent of the default language page
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if not page.parent and not in_default_lang(page):
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for page2 in generator.pages:
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if (page.slug == page2.slug and
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os.path.dirname(page.source_path) ==
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os.path.dirname(page2.source_path)):
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# Only set the parent but not the children, obviously
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page.parent = page2.parent
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# set all parents (ancestors)
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for page in _all_pages():
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p = page
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while p.parent:
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page.parents.insert(0, p.parent)
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p = p.parent
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def register():
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signals.content_object_init.connect(override_metadata)
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signals.page_generator_finalized.connect(set_relationships)
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