mirror of
https://github.com/hwchase17/langchain
synced 2024-11-02 09:40:22 +00:00
ece4b43a81
**Description:** Fixed `type: ignore`'s for mypy for some document_loaders. **Issue:** [Remove "type: ignore" comments #17048 ](https://github.com/langchain-ai/langchain/issues/17048) --------- Co-authored-by: Robby <h0rv@users.noreply.github.com> Co-authored-by: Eugene Yurtsev <eyurtsev@gmail.com>
111 lines
4.0 KiB
Python
111 lines
4.0 KiB
Python
import os
|
|
from typing import Callable, List, Optional
|
|
|
|
from langchain_core.documents import Document
|
|
|
|
from langchain_community.document_loaders.base import BaseLoader
|
|
|
|
|
|
class GitLoader(BaseLoader):
|
|
"""Load `Git` repository files.
|
|
|
|
The Repository can be local on disk available at `repo_path`,
|
|
or remote at `clone_url` that will be cloned to `repo_path`.
|
|
Currently, supports only text files.
|
|
|
|
Each document represents one file in the repository. The `path` points to
|
|
the local Git repository, and the `branch` specifies the branch to load
|
|
files from. By default, it loads from the `main` branch.
|
|
"""
|
|
|
|
def __init__(
|
|
self,
|
|
repo_path: str,
|
|
clone_url: Optional[str] = None,
|
|
branch: Optional[str] = "main",
|
|
file_filter: Optional[Callable[[str], bool]] = None,
|
|
):
|
|
"""
|
|
|
|
Args:
|
|
repo_path: The path to the Git repository.
|
|
clone_url: Optional. The URL to clone the repository from.
|
|
branch: Optional. The branch to load files from. Defaults to `main`.
|
|
file_filter: Optional. A function that takes a file path and returns
|
|
a boolean indicating whether to load the file. Defaults to None.
|
|
"""
|
|
self.repo_path = repo_path
|
|
self.clone_url = clone_url
|
|
self.branch = branch
|
|
self.file_filter = file_filter
|
|
|
|
def load(self) -> List[Document]:
|
|
try:
|
|
from git import Blob, Repo
|
|
except ImportError as ex:
|
|
raise ImportError(
|
|
"Could not import git python package. "
|
|
"Please install it with `pip install GitPython`."
|
|
) from ex
|
|
|
|
if not os.path.exists(self.repo_path) and self.clone_url is None:
|
|
raise ValueError(f"Path {self.repo_path} does not exist")
|
|
elif self.clone_url:
|
|
# If the repo_path already contains a git repository, verify that it's the
|
|
# same repository as the one we're trying to clone.
|
|
if os.path.isdir(os.path.join(self.repo_path, ".git")):
|
|
repo = Repo(self.repo_path)
|
|
# If the existing repository is not the same as the one we're trying to
|
|
# clone, raise an error.
|
|
if repo.remotes.origin.url != self.clone_url:
|
|
raise ValueError(
|
|
"A different repository is already cloned at this path."
|
|
)
|
|
else:
|
|
repo = Repo.clone_from(self.clone_url, self.repo_path)
|
|
repo.git.checkout(self.branch)
|
|
else:
|
|
repo = Repo(self.repo_path)
|
|
repo.git.checkout(self.branch)
|
|
|
|
docs: List[Document] = []
|
|
|
|
for item in repo.tree().traverse():
|
|
if not isinstance(item, Blob):
|
|
continue
|
|
|
|
file_path = os.path.join(self.repo_path, item.path)
|
|
|
|
ignored_files = repo.ignored([file_path])
|
|
if len(ignored_files):
|
|
continue
|
|
|
|
# uses filter to skip files
|
|
if self.file_filter and not self.file_filter(file_path):
|
|
continue
|
|
|
|
rel_file_path = os.path.relpath(file_path, self.repo_path)
|
|
try:
|
|
with open(file_path, "rb") as f:
|
|
content = f.read()
|
|
file_type = os.path.splitext(item.name)[1]
|
|
|
|
# loads only text files
|
|
try:
|
|
text_content = content.decode("utf-8")
|
|
except UnicodeDecodeError:
|
|
continue
|
|
|
|
metadata = {
|
|
"source": rel_file_path,
|
|
"file_path": rel_file_path,
|
|
"file_name": item.name,
|
|
"file_type": file_type,
|
|
}
|
|
doc = Document(page_content=text_content, metadata=metadata)
|
|
docs.append(doc)
|
|
except Exception as e:
|
|
print(f"Error reading file {file_path}: {e}") # noqa: T201
|
|
|
|
return docs
|