2021-07-03 17:26:57 +00:00
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from pathlib import Path
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from itertools import chain
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import os
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import re
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2021-07-03 10:59:04 +00:00
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from pelican import signals
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2021-07-03 17:26:57 +00:00
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from pelican.readers import MarkdownReader
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from pelican.utils import pelican_open
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2021-07-03 10:59:04 +00:00
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2021-07-03 17:26:57 +00:00
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from markdown import Markdown
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2021-07-03 11:40:42 +00:00
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2021-07-03 17:26:57 +00:00
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ARTICLES = {}
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FILES = {}
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link = r'\[\[\s*(?P<filename>[\w+\s.]+)(\|\s*(?P<linkname>[\w\s]+))?\]\]'
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file_re = re.compile(r'!' + link)
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link_re = re.compile(link)
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"""
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# Test cases
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[[my link]]
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[[ my work ]]
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[[ my work | is finished ]]
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2021-07-03 10:59:04 +00:00
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2021-07-03 17:26:57 +00:00
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![[ a file.jpg ]]
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![[file.jpg]]
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"""
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2021-07-03 10:59:04 +00:00
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2021-07-03 17:26:57 +00:00
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2021-07-03 18:41:06 +00:00
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def get_file_and_linkname(match):
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group = match.groupdict()
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filename = group['filename'].strip()
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linkname = group['linkname'] if group['linkname'] else filename
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linkname = linkname.strip()
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return filename, linkname
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2021-07-03 17:26:57 +00:00
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class ObsidianMarkdownReader(MarkdownReader):
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2021-07-03 10:59:04 +00:00
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"""
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Change the format of various links to the accepted case of pelican.
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"""
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2021-07-03 17:26:57 +00:00
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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def replace_obsidian_links(self, text):
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2021-07-03 18:41:06 +00:00
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def link_replacement(match):
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filename, linkname = get_file_and_linkname(match)
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2021-07-03 18:11:08 +00:00
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path = ARTICLES.get(filename)
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if path:
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link_structure = '[{linkname}]({{filename}}/{path}/{filename}.md)'.format(
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linkname=linkname, path=path, filename=filename
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)
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else:
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link_structure = '{linkname}'.format(linkname=linkname)
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2021-07-03 17:26:57 +00:00
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return link_structure
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2021-07-03 18:41:06 +00:00
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def file_replacement(match):
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filename, linkname = get_file_and_linkname(match)
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path = FILES.get(filename)
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if path:
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link_structure = '![{linkname}]({{static}}/{path}/{filename})'.format(
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linkname=linkname, path=path, filename=filename
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)
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else:
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# don't show it at all since it will be broken
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link_structure = ''
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return link_structure
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text = file_re.sub(file_replacement, text)
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text = link_re.sub(link_replacement, text)
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2021-07-03 17:26:57 +00:00
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return text
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def read(self, source_path):
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"""Parse content and metadata of markdown files
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It also changes the links to the acceptable format for pelican
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"""
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self._source_path = source_path
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self._md = Markdown(**self.settings['MARKDOWN'])
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with pelican_open(source_path) as text:
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text = self.replace_obsidian_links(text)
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content = self._md.convert(text)
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if hasattr(self._md, 'Meta'):
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metadata = self._parse_metadata(self._md.Meta)
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else:
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metadata = {}
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return content, metadata
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def populate_files_and_articles(article_generator):
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global ARTICLES
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global FILES
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base_path = Path(article_generator.path)
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2022-04-22 21:31:08 +00:00
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articles = base_path.glob('**/*.md')
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for article in articles:
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full_path, filename_w_ext = os.path.split(article)
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filename, ext = os.path.splitext(filename_w_ext)
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full_path = str(full_path).replace(str(base_path) + '/', '')
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ARTICLES[filename] = full_path
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2021-07-03 17:26:57 +00:00
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2021-07-03 18:41:06 +00:00
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globs = [base_path.glob('**/*.{}'.format(ext)) for ext in ['png', 'jpg', 'svg', 'apkg', 'gif']]
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files = chain(*globs)
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2022-04-22 21:31:08 +00:00
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for _file in files:
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full_path, filename_w_ext = os.path.split(_file)
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full_path = str(full_path).replace(str(base_path) + '/', '')
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FILES[filename_w_ext] = full_path
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2021-07-03 17:26:57 +00:00
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def modify_reader(article_generator):
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populate_files_and_articles(article_generator)
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article_generator.readers.readers['md'] = ObsidianMarkdownReader(article_generator.settings)
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2021-07-03 10:59:04 +00:00
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2021-07-03 11:41:04 +00:00
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def modify_metadata(article_generator, metadata):
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"""
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2021-07-03 11:41:04 +00:00
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Modify the tags so we can define the tags as we are used to in obsidian.
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2021-07-03 10:59:04 +00:00
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"""
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2021-07-03 18:11:08 +00:00
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for tag in metadata.get('tags', []):
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2021-07-03 11:41:04 +00:00
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if '#' in tag.name:
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tag.name = tag.name.replace('#', '')
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2021-07-03 10:59:04 +00:00
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def register():
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signals.article_generator_context.connect(modify_metadata)
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2021-07-03 17:26:57 +00:00
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signals.article_generator_init.connect(modify_reader)
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