tjh.dev
1{
2 lib,
3 buildPythonPackage,
4 fetchFromGitHub,
5
6 # build system
7 poetry-core,
8
9 # dependencies
10 langchain-core,
11 msgpack,
12 ormsgpack,
13
14 # testing
15 dataclasses-json,
16 pytest-asyncio,
17 pytest-mock,
18 pytestCheckHook,
19
20 # passthru
21 nix-update-script,
22}:
23
24buildPythonPackage rec {
25 pname = "langgraph-checkpoint";
26 version = "2.0.26";
27 pyproject = true;
28
29 src = fetchFromGitHub {
30 owner = "langchain-ai";
31 repo = "langgraph";
32 tag = "checkpoint==${version}";
33 hash = "sha256-DSkjaxUfpsOg2ex0dgfO/UJ7WiQb5wQsAGgHPTckF6o=";
34 };
35
36 sourceRoot = "${src.name}/libs/checkpoint";
37
38 build-system = [ poetry-core ];
39
40 dependencies = [
41 langchain-core
42 ormsgpack
43 ];
44
45 propagatedBuildInputs = [ msgpack ];
46
47 pythonImportsCheck = [ "langgraph.checkpoint" ];
48
49 nativeCheckInputs = [
50 dataclasses-json
51 pytest-asyncio
52 pytest-mock
53 pytestCheckHook
54 ];
55
56 passthru.updateScript = nix-update-script {
57 extraArgs = [
58 "--version-regex"
59 "checkpoint==([0-9.]+)"
60 ];
61 };
62
63 meta = {
64 changelog = "https://github.com/langchain-ai/langgraph/releases/tag/checkpoint==${version}";
65 description = "Library with base interfaces for LangGraph checkpoint savers";
66 homepage = "https://github.com/langchain-ai/langgraph/tree/main/libs/checkpoint";
67 license = lib.licenses.mit;
68 maintainers = with lib.maintainers; [
69 drupol
70 sarahec
71 ];
72 };
73}