76 lines
1.7 KiB
Nix
76 lines
1.7 KiB
Nix
{
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lib,
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buildPythonPackage,
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fetchFromGitHub,
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langgraph-checkpoint,
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orjson,
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psycopg,
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psycopg-pool,
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langgraph-sdk,
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poetry-core,
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pythonOlder,
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postgresql,
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postgresqlTestHook,
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pytestCheckHook,
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pytest-asyncio,
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stdenvNoCC,
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}:
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buildPythonPackage rec {
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pname = "langgraph-checkpoint-postgres";
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version = "1.0.6";
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pyproject = true;
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disabled = pythonOlder "3.10";
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src = fetchFromGitHub {
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owner = "langchain-ai";
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repo = "langgraph";
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rev = "refs/tags/checkpointpostgres==${version}";
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hash = "sha256-F9sgZQQBFs5hDUsaR5BI9ERve9L8LTUvEKOgyz5ioqY=";
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};
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postgresqlTestSetupPost = ''
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substituteInPlace tests/conftest.py \
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--replace-fail "DEFAULT_URI = \"postgres://postgres:postgres@localhost:5441/postgres?sslmode=disable\"" "DEFAULT_URI = \"postgres:///$PGDATABASE\""
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'';
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sourceRoot = "${src.name}/libs/checkpoint-postgres";
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build-system = [ poetry-core ];
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dependencies = [
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langgraph-checkpoint
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orjson
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psycopg
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psycopg-pool
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];
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pythonRelaxDeps = [ "psycopg-pool" ];
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doCheck = !(stdenvNoCC.hostPlatform.isDarwin);
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pythonImportsCheck = [ "langgraph.checkpoint.postgres" ];
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nativeCheckInputs = [
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postgresql
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postgresqlTestHook
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pytest-asyncio
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pytestCheckHook
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];
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passthru = {
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updateScript = langgraph-sdk.updateScript;
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};
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meta = {
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description = "Library with a Postgres implementation of LangGraph checkpoint saver";
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homepage = "https://github.com/langchain-ai/langgraph/tree/main/libs/checkpoint-postgres";
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changelog = "https://github.com/langchain-ai/langgraph/releases/tag/checkpointpostgres==${version}";
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license = lib.licenses.mit;
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maintainers = with lib.maintainers; [
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drupol
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sarahec
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];
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};
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}
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