147 lines
3.4 KiB
Nix
147 lines
3.4 KiB
Nix
{
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lib,
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stdenv,
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buildPythonPackage,
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fetchFromGitHub,
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# build-system
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poetry-core,
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# dependencies
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langchain-core,
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langgraph-checkpoint,
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langgraph-prebuilt,
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langgraph-sdk,
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xxhash,
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# tests
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aiosqlite,
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dataclasses-json,
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grandalf,
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httpx,
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langgraph-checkpoint-postgres,
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langgraph-checkpoint-sqlite,
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langsmith,
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psycopg,
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pydantic,
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pytest-asyncio,
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pytest-mock,
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pytest-repeat,
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pytest-xdist,
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pytestCheckHook,
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syrupy,
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postgresql,
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postgresqlTestHook,
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# passthru
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nix-update-script,
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}:
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buildPythonPackage rec {
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pname = "langgraph";
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version = "0.4.1";
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pyproject = true;
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src = fetchFromGitHub {
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owner = "langchain-ai";
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repo = "langgraph";
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tag = version;
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hash = "sha256-bTxtfduuuyRITZqhk15aWwxNwiZ7TMTgBOEPat6zVIc=";
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};
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postgresqlTestSetupPost = ''
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substituteInPlace tests/conftest.py \
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--replace-fail "DEFAULT_POSTGRES_URI = \"postgres://postgres:postgres@localhost:5442/\"" "DEFAULT_POSTGRES_URI = \"postgres:///$PGDATABASE\""
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'';
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sourceRoot = "${src.name}/libs/langgraph";
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build-system = [ poetry-core ];
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dependencies = [
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langchain-core
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langgraph-checkpoint
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langgraph-prebuilt
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langgraph-sdk
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xxhash
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];
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pythonImportsCheck = [ "langgraph" ];
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# postgresql doesn't play nicely with the darwin sandbox:
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# FATAL: could not create shared memory segment: Operation not permitted
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doCheck = !stdenv.hostPlatform.isDarwin;
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nativeCheckInputs = [
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pytestCheckHook
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postgresql
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postgresqlTestHook
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];
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checkInputs = [
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aiosqlite
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dataclasses-json
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grandalf
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httpx
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langgraph-checkpoint-postgres
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langgraph-checkpoint-sqlite
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langsmith
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psycopg
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psycopg.pool
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pydantic
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pytest-asyncio
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pytest-mock
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pytest-repeat
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pytest-xdist
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syrupy
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];
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disabledTests = [
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# test is flaky due to pydantic error on the exception
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"test_doesnt_warn_valid_schema"
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"test_tool_node_inject_store"
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# Disabling tests that requires to create new random databases
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"test_cancel_graph_astream"
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"test_cancel_graph_astream_events_v2"
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"test_channel_values"
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"test_fork_always_re_runs_nodes"
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"test_interruption_without_state_updates"
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"test_interruption_without_state_updates_async"
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"test_invoke_two_processes_in_out_interrupt"
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"test_nested_graph_interrupts"
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"test_no_modifier_async"
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"test_no_modifier"
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"test_pending_writes_resume"
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"test_remove_message_via_state_update"
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# pydantic.errors.PydanticForbiddenQualifier,
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# see https://github.com/langchain-ai/langgraph/issues/4360
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"test_state_schema_optional_values"
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];
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disabledTestPaths = [
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# psycopg.errors.InsufficientPrivilege: permission denied to create database
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"tests/test_checkpoint_migration.py"
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"tests/test_large_cases.py"
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"tests/test_large_cases_async.py"
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"tests/test_pregel.py"
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"tests/test_pregel_async.py"
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];
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# Since `langgraph` is the only unprefixed package, we have to use an explicit match
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passthru.updateScript = nix-update-script {
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extraArgs = [
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"--version-regex"
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"([0-9.]+)"
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];
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};
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meta = {
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description = "Build resilient language agents as graphs";
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homepage = "https://github.com/langchain-ai/langgraph";
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changelog = "https://github.com/langchain-ai/langgraph/releases/tag/${src.tag}";
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license = lib.licenses.mit;
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maintainers = with lib.maintainers; [ sarahec ];
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};
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}
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