init pkg (#1)

* init pkg

* x

* x

* x

* x

* x

.github/scripts/check_diff.py

@@ -2,7 +2,7 @@
 import sys
 from typing import Dict
 
-LIB_DIRS = ["libs/{lib}"]
+LIB_DIRS = ["libs/databricks"]
 
 if __name__ == "__main__":
     files = sys.argv[1:]

.github/workflows/_release.yml

@@ -12,7 +12,7 @@ on:
       working-directory:
         required: true
         type: string
-        default: 'libs/'
+        default: 'libs/databricks'
 
 env:
   PYTHON_VERSION: "3.11"
@@ -158,8 +158,6 @@ jobs:
         working-directory: ${{ inputs.working-directory }}
 
       - name: Run integration tests
-        env:
-          PARTNER_API_KEY: ${{ secrets.PARTNER_API_KEY }}
         run: make integration_tests
         working-directory: ${{ inputs.working-directory }}
 

README.md

@@ -1,51 +1,5 @@
-# 🦜️🔗 LangChain {partner}
+# 🦜️🔗 LangChain Databricks
 
-This repository contains {n} packages with {partner} integrations with LangChain:
+This repository contains 1 package with Databricks integrations with LangChain:
 
-- [langchain-{package}](https://pypi.org/project/langchain-{package}/) integrates [{product}}]({product_link}).
-{- ... if more packages}
-
-## Initial Repo Checklist (Remove this section after completing)
-
-This setup assumes that the partner package is already split. For those instructions,
-see [these docs](https://python.langchain.com/docs/contributing/integrations#partner-packages).
-
-Code
-
-- [ ] Fill out the readme above (for folks that follow pypi link)
-- [ ] Copy package into /libs folder
-- [ ] Update these fields in /libs/*/pyproject.toml
-
-    - `tool.poetry.repository`
-    - `tool.poetry.urls["Source Code"]`
-
-Workflow code
-
-- [ ] Add secrets as env vars in .github/workflows/_release.yml
-- [ ] Populate .github/workflows/_release.yml with `on.workflow_dispatch.inputs.working-directory.default`
-- [ ] Configure `LIB_DIRS` in .github/scripts/check_diff.py
-
-In github
-
-- [ ] Add integration testing secrets in Github (ask Erick for help)
-- [ ] Add partner collaborators in Github (ask Erick for help)
-- [ ] "Allow auto-merge" in General Settings 
-- [ ] Only "Allow squash merging" in General Settings
-- [ ] Set up ruleset matching CI build (ask Erick for help)
-    - name: ci build
-    - enforcement: active
-    - bypass: write
-    - target: default branch
-    - rules: restrict deletions, require status checks ("CI Success"), block force pushes
-
-Pypi
-
-- [ ] Add new repo to test-pypi and pypi trusted publishing (ask Erick for help)
-
-Slack
-
-- [ ] Set up release alerting in Slack (ask Erick for help)
-
-release:
-/github subscribe langchain-ai/langchain-{partner} releases workflows:{name:"release"}
-/github unsubscribe langchain-ai/langchain-{partner} issues pulls commits deployments
+- [langchain-databricks](https://pypi.org/project/langchain-databricks/)

libs/databricks/.gitignore

@@ -0,0 +1 @@
+__pycache__

libs/databricks/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 LangChain, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

libs/databricks/Makefile

@@ -0,0 +1,62 @@
+.PHONY: all format lint test tests integration_tests docker_tests help extended_tests
+
+# Default target executed when no arguments are given to make.
+all: help
+
+# Define a variable for the test file path.
+TEST_FILE ?= tests/unit_tests/
+integration_test integration_tests: TEST_FILE = tests/integration_tests/
+
+
+# unit tests are run with the --disable-socket flag to prevent network calls
+test tests:
+	poetry run pytest --disable-socket --allow-unix-socket $(TEST_FILE)
+
+# integration tests are run without the --disable-socket flag to allow network calls
+integration_test integration_tests:
+	poetry run pytest $(TEST_FILE)
+
+######################
+# LINTING AND FORMATTING
+######################
+
+# Define a variable for Python and notebook files.
+PYTHON_FILES=.
+MYPY_CACHE=.mypy_cache
+lint format: PYTHON_FILES=.
+lint_diff format_diff: PYTHON_FILES=$(shell git diff --relative=libs/partners/databricks --name-only --diff-filter=d master | grep -E '\.py$$|\.ipynb$$')
+lint_package: PYTHON_FILES=langchain_databricks
+lint_tests: PYTHON_FILES=tests
+lint_tests: MYPY_CACHE=.mypy_cache_test
+
+lint lint_diff lint_package lint_tests:
+	poetry run ruff check .
+	poetry run ruff format $(PYTHON_FILES) --diff
+	poetry run ruff check --select I $(PYTHON_FILES)
+	mkdir -p $(MYPY_CACHE); poetry run mypy $(PYTHON_FILES) --cache-dir $(MYPY_CACHE)
+
+format format_diff:
+	poetry run ruff format $(PYTHON_FILES)
+	poetry run ruff check --select I --fix $(PYTHON_FILES)
+
+spell_check:
+	poetry run codespell --toml pyproject.toml
+
+spell_fix:
+	poetry run codespell --toml pyproject.toml -w
+
+check_imports: $(shell find langchain_databricks -name '*.py')
+	poetry run python ./scripts/check_imports.py $^
+
+######################
+# HELP
+######################
+
+help:
+	@echo '----'
+	@echo 'check_imports				- check imports'
+	@echo 'format                       - run code formatters'
+	@echo 'lint                         - run linters'
+	@echo 'test                         - run unit tests'
+	@echo 'tests                        - run unit tests'
+	@echo 'test TEST_FILE=<test_file>   - run all tests in file'

libs/databricks/README.md

@@ -0,0 +1,24 @@
+# langchain-databricks
+
+This package contains the LangChain integration with Databricks
+
+## Installation
+
+```bash
+pip install -U langchain-databricks
+```
+
+And you should configure credentials by setting the following environment variables:
+
+* TODO: fill this out
+
+## Chat Models
+
+`ChatDatabricks` class exposes chat models from Databricks.
+
+```python
+from langchain_databricks import ChatDatabricks
+
+llm = ChatDatabricks()
+llm.invoke("Sing a ballad of LangChain.")
+```

libs/databricks/langchain_databricks/__init__.py

@@ -0,0 +1,19 @@
+from importlib import metadata
+
+from langchain_databricks.chat_models import ChatDatabricks
+from langchain_databricks.embeddings import DatabricksEmbeddings
+from langchain_databricks.vectorstores import DatabricksVectorSearch
+
+try:
+    __version__ = metadata.version(__package__)
+except metadata.PackageNotFoundError:
+    # Case where package metadata is not available.
+    __version__ = ""
+del metadata  # optional, avoids polluting the results of dir(__package__)
+
+__all__ = [
+    "ChatDatabricks",
+    "DatabricksEmbeddings",
+    "DatabricksVectorSearch",
+    "__version__",
+]