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60 lines
2.0 KiB
Python
60 lines
2.0 KiB
Python
"""Loader that loads Obsidian directory dump."""
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import re
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from pathlib import Path
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from typing import List
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from langchain.docstore.document import Document
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from langchain.document_loaders.base import BaseLoader
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class ObsidianLoader(BaseLoader):
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"""Loader that loads Obsidian files from disk."""
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FRONT_MATTER_REGEX = re.compile(r"^---\n(.*?)\n---\n", re.MULTILINE | re.DOTALL)
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def __init__(
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self, path: str, encoding: str = "UTF-8", collect_metadata: bool = True
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):
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"""Initialize with path."""
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self.file_path = path
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self.encoding = encoding
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self.collect_metadata = collect_metadata
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def _parse_front_matter(self, content: str) -> dict:
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"""Parse front matter metadata from the content and return it as a dict."""
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if not self.collect_metadata:
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return {}
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match = self.FRONT_MATTER_REGEX.search(content)
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front_matter = {}
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if match:
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lines = match.group(1).split("\n")
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for line in lines:
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if ":" in line:
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key, value = line.split(":", 1)
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front_matter[key.strip()] = value.strip()
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else:
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# Skip lines without a colon
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continue
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return front_matter
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def _remove_front_matter(self, content: str) -> str:
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"""Remove front matter metadata from the given content."""
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if not self.collect_metadata:
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return content
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return self.FRONT_MATTER_REGEX.sub("", content)
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def load(self) -> List[Document]:
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"""Load documents."""
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ps = list(Path(self.file_path).glob("**/*.md"))
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docs = []
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for p in ps:
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with open(p, encoding=self.encoding) as f:
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text = f.read()
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front_matter = self._parse_front_matter(text)
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text = self._remove_front_matter(text)
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metadata = {"source": str(p.name), "path": str(p), **front_matter}
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docs.append(Document(page_content=text, metadata=metadata))
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return docs
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