Pants plugins: pack_metadata - python imports rules

CHANGELOG.rst

@@ -65,7 +65,7 @@ Added
   working on StackStorm, improve our security posture, and improve CI reliability thanks in part
   to pants' use of PEX lockfiles. This is not a user-facing addition.
   #6118 #6141 #6133 #6120 #6181 #6183 #6200 #6237 #6229 #6240 #6241 #6244 #6251 #6253
-  #6254 #6258 #6259
+  #6254 #6258 #6259 #6260
   Contributed by @cognifloyd
 * Build of ST2 EL9 packages #6153
   Contributed by @amanda11

contrib/chatops/BUILD

@@ -1,3 +1,5 @@
+__defaults__(all=dict(inject_pack_python_path=True))
+
 pack_metadata(
     name="metadata",
 )

contrib/core/BUILD

@@ -1,3 +1,5 @@
+__defaults__(all=dict(inject_pack_python_path=True))
+
 pack_metadata(
     name="metadata",
 )

contrib/debug/BUILD

@@ -1,3 +1,5 @@
+__defaults__(all=dict(inject_pack_python_path=True))
+
 pack_metadata(
     name="metadata",
 )

contrib/default/BUILD

@@ -1,3 +1,5 @@
+__defaults__(all=dict(inject_pack_python_path=True))
+
 pack_metadata(
     name="metadata",
 )

contrib/examples/BUILD

@@ -1,3 +1,5 @@
+__defaults__(all=dict(inject_pack_python_path=True))
+
 pack_metadata(
     name="metadata",
 )

contrib/examples/actions/pythonactions/isprime.py

@@ -15,7 +15,8 @@
 
 import math
 
-from environ import get_environ
+# TODO: extend pants and pants-plugins/pack_metadata to add lib dirs extra_sys_path for pylint
+from environ import get_environ  # pylint: disable=E0401
 from st2common.runners.base_action import Action
 
 

contrib/hello_st2/BUILD

@@ -1,3 +1,5 @@
+__defaults__(all=dict(inject_pack_python_path=True))
+
 pack_metadata(
     name="metadata",
 )

contrib/linux/BUILD

@@ -1,3 +1,5 @@
+__defaults__(all=dict(inject_pack_python_path=True))
+
 pack_metadata(
     name="metadata",
 )

contrib/packs/BUILD

@@ -1,3 +1,5 @@
+__defaults__(all=dict(inject_pack_python_path=True))
+
 pack_metadata(
     name="metadata",
 )

pants-plugins/pack_metadata/python_rules/BUILD

@@ -0,0 +1,9 @@
+python_sources()
+
+python_tests(
+    name="tests",
+)
+
+python_test_utils(
+    name="test_utils",
+)

pants-plugins/pack_metadata/python_rules/conftest.py

@@ -0,0 +1,282 @@
+# Copyright 2024 The StackStorm Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from textwrap import dedent
+
+import pytest
+from pants.backend.python.dependency_inference.module_mapper import (
+    FirstPartyPythonMappingImpl,
+)
+from pants.backend.python.goals.pytest_runner import PytestPluginSetup
+from pants.backend.python.target_types import (
+    PythonSourceTarget,
+    PythonSourcesGeneratorTarget,
+    PythonTestTarget,
+    PythonTestsGeneratorTarget,
+)
+from pants.backend.python.target_types_rules import rules as python_target_types_rules
+from pants.engine.rules import QueryRule
+from pants.testutil.python_rule_runner import PythonRuleRunner
+from pants.testutil.rule_runner import RuleRunner
+
+from pack_metadata.python_rules import (
+    python_module_mapper,
+    python_pack_content,
+    python_path_rules,
+)
+from pack_metadata.python_rules.python_module_mapper import (
+    St2PythonPackContentMappingMarker,
+)
+from pack_metadata.python_rules.python_pack_content import (
+    PackContentPythonEntryPoints,
+    PackContentPythonEntryPointsRequest,
+    PackContentResourceTargetsOfType,
+    PackContentResourceTargetsOfTypeRequest,
+    PackPythonLibs,
+    PackPythonLibsRequest,
+)
+from pack_metadata.python_rules.python_path_rules import (
+    PackPythonPath,
+    PackPythonPathRequest,
+    PytestPackTestRequest,
+)
+from pack_metadata.target_types import (
+    InjectPackPythonPathField,
+    PackContentResourceTarget,
+    PackMetadata,
+)
+
+# some random pack names
+packs = (
+    "foo",  # imports between actions
+    "dr_seuss",  # imports from <pack>/actions/lib
+    "shards",  # imports from <pack>/lib
+    "metals",  # imports the action from a subdirectory
+)
+
+
+@pytest.fixture
+def pack_names() -> tuple[str, ...]:
+    return packs
+
+
+def write_test_files(rule_runner: RuleRunner):
+    for pack in packs:
+        rule_runner.write_files(
+            {
+                f"packs/{pack}/BUILD": dedent(
+                    """
+                    __defaults__(all=dict(inject_pack_python_path=True))
+                    pack_metadata(name="metadata")
+                    """
+                ),
+                f"packs/{pack}/pack.yaml": dedent(
+                    f"""
+                    ---
+                    name: {pack}
+                    version: 1.0.0
+                    author: StackStorm
+                    email: info@stackstorm.com
+                    """
+                ),
+                f"packs/{pack}/config.schema.yaml": "",
+                f"packs/{pack}/config.yaml.example": "",
+                f"packs/{pack}/icon.png": "",
+                f"packs/{pack}/README.md": f"# Pack {pack} README",
+            }
+        )
+
+    def action_metadata_file(action: str, entry_point: str = "") -> str:
+        entry_point = entry_point or f"{action}.py"
+        return dedent(
+            f"""
+            ---
+            name: {action}
+            runner_type: python-script
+            entry_point: {entry_point}
+            """
+        )
+
+    def test_file(module: str, _object: str) -> str:
+        return dedent(
+            f"""
+            from {module} import {_object}
+            def test_{module.replace(".", "_")}() -> None:
+                pass
+            """
+        )
+
+    rule_runner.write_files(
+        {
+            "packs/foo/actions/BUILD": "python_sources()",
+            "packs/foo/actions/get_bar.yaml": action_metadata_file("get_bar"),
+            "packs/foo/actions/get_bar.py": dedent(
+                """
+                RESPONSE_CONSTANT = "foobar_key"
+                class BarAction:
+                    def run(self):
+                        return {RESPONSE_CONSTANT: "bar"}
+                """
+            ),
+            "packs/foo/actions/get_baz.yaml": action_metadata_file("get_baz"),
+            "packs/foo/actions/get_baz.py": dedent(
+                """
+                from get_bar import RESPONSE_CONSTANT
+                class BazAction:
+                    def run(self):
+                        return {RESPONSE_CONSTANT: "baz"}
+                """
+            ),
+            "packs/foo/tests/BUILD": "python_tests()",
+            "packs/foo/tests/test_get_bar_action.py": test_file("get_bar", "BarAction"),
+            "packs/foo/tests/test_get_baz_action.py": test_file("get_baz", "BazAction"),
+            "packs/dr_seuss/actions/lib/seuss/BUILD": "python_sources()",
+            "packs/dr_seuss/actions/lib/seuss/__init__.py": "",
+            "packs/dr_seuss/actions/lib/seuss/things.py": dedent(
+                """
+                THING1 = "thing one"
+                THING2 = "thing two"
+                """
+            ),
+            "packs/dr_seuss/actions/BUILD": "python_sources()",
+            "packs/dr_seuss/actions/get_from_actions_lib.yaml": action_metadata_file(
+                "get_from_actions_lib"
+            ),
+            "packs/dr_seuss/actions/get_from_actions_lib.py": dedent(
+                """
+                from seuss.things import THING1, THING2
+                class GetFromActionsLibAction:
+                    def run(self):
+                        return {"things": (THING1, THING2)}
+                """
+            ),
+            "packs/dr_seuss/tests/BUILD": "python_tests()",
+            "packs/dr_seuss/tests/test_get_from_actions_lib_action.py": test_file(
+                "get_from_actions_lib", "GetFromActionsLibAction"
+            ),
+            "packs/shards/lib/stormlight_archive/BUILD": "python_sources()",
+            "packs/shards/lib/stormlight_archive/__init__.py": "",
+            "packs/shards/lib/stormlight_archive/things.py": dedent(
+                """
+                STORM_LIGHT = "Honor"
+                VOID_LIGHT = "Odium"
+                LIFE_LIGHT = "Cultivation"
+                """
+            ),
+            "packs/shards/actions/BUILD": "python_sources()",
+            "packs/shards/actions/get_from_pack_lib.yaml": action_metadata_file(
+                "get_from_pack_lib"
+            ),
+            "packs/shards/actions/get_from_pack_lib.py": dedent(
+                """
+                from stormlight_archive.things import STORM_LIGHT, VOID_LIGHT, LIFE_LIGHT
+                class GetFromPackLibAction:
+                    def run(self):
+                        return {"light_sources": (STORM_LIGHT, VOID_LIGHT, LIFE_LIGHT)}
+                """
+            ),
+            "packs/shards/sensors/BUILD": "python_sources()",
+            "packs/shards/sensors/horn_eater.yaml": dedent(
+                """
+                ---
+                name: horn_eater
+                entry_point: horn_eater.py
+                class_name: HornEaterSensor
+                trigger_types: [{name: horn_eater.saw.spren, payload_schema: {type: object}}]
+                """
+            ),
+            "packs/shards/sensors/horn_eater.py": dedent(
+                """
+                from st2reactor.sensor.base import PollingSensor
+                from stormlight_archive.things import STORM_LIGHT
+                class HornEaterSensor(PollingSensor):
+                    def setup(self): pass
+                    def poll(self):
+                        if STORM_LIGHT in self.config:
+                            self.sensor_service.dispatch(
+                                trigger="horn_eater.saw.spren", payload={"spren_type": STORM_LIGHT}
+                            )
+                    def cleanup(self): pass
+                    def add_trigger(self): pass
+                    def update_trigger(self): pass
+                    def remove_trigger(self): pass
+                """
+            ),
+            "packs/shards/tests/BUILD": "python_tests()",
+            "packs/shards/tests/test_get_from_pack_lib_action.py": test_file(
+                "get_from_pack_lib", "GetFromPackLibAction"
+            ),
+            "packs/shards/tests/test_horn_eater_sensor.py": test_file(
+                "horn_eater", "HornEaterSensor"
+            ),
+            "packs/metals/actions/fly.yaml": action_metadata_file(
+                "fly", "mist_born/fly.py"
+            ),
+            "packs/metals/actions/mist_born/BUILD": "python_sources()",
+            "packs/metals/actions/mist_born/__init__.py": "",
+            "packs/metals/actions/mist_born/fly.py": dedent(
+                """
+                class FlyAction:
+                    def run(self):
+                        return {"metals": ("steel", "iron")}
+                """
+            ),
+            "packs/metals/tests/BUILD": "python_tests()",
+            "packs/metals/tests/test_fly_action.py": test_file(
+                "mist_born.fly", "FlyAction"
+            ),
+        }
+    )
+
+
+@pytest.fixture
+def rule_runner() -> RuleRunner:
+    rule_runner = PythonRuleRunner(
+        rules=[
+            PythonTestsGeneratorTarget.register_plugin_field(
+                InjectPackPythonPathField, as_moved_field=True
+            ),
+            PythonTestTarget.register_plugin_field(InjectPackPythonPathField),
+            *python_target_types_rules(),
+            # TODO: not sure if we need a QueryRule for every rule...
+            *python_pack_content.rules(),
+            QueryRule(
+                PackContentResourceTargetsOfType,
+                (PackContentResourceTargetsOfTypeRequest,),
+            ),
+            QueryRule(
+                PackContentPythonEntryPoints, (PackContentPythonEntryPointsRequest,)
+            ),
+            QueryRule(PackPythonLibs, (PackPythonLibsRequest,)),
+            *python_module_mapper.rules(),
+            QueryRule(
+                FirstPartyPythonMappingImpl, (St2PythonPackContentMappingMarker,)
+            ),
+            *python_path_rules.rules(),
+            QueryRule(PackPythonPath, (PackPythonPathRequest,)),
+            QueryRule(PytestPluginSetup, (PytestPackTestRequest,)),
+        ],
+        target_types=[
+            PackContentResourceTarget,
+            PackMetadata,
+            PythonSourceTarget,
+            PythonSourcesGeneratorTarget,
+            PythonTestTarget,
+            PythonTestsGeneratorTarget,
+        ],
+    )
+    write_test_files(rule_runner)
+    args = ["--source-root-patterns=packs/*"]
+    rule_runner.set_options(args, env_inherit={"PATH", "PYENV_ROOT", "HOME"})
+    return rule_runner