From 581a6c0c7b7dca3f392bd26978b0a9af122c6491 Mon Sep 17 00:00:00 2001
From: Mike Alfare <13974384+mikealfare@users.noreply.github.com>
Date: Thu, 18 Apr 2024 21:27:50 -0400
Subject: [PATCH] Add a control in that verifies that `dbt-core` functionality
 is not being used within an adapter (#177)

---
 .../Under the Hood-20240417-192843.yaml       |  6 ++
 .pre-commit-config.yaml                       | 81 ++++++++++++-------
 dbt/adapters/base/impl.py                     |  4 +-
 pyproject.toml                                | 49 +----------
 4 files changed, 63 insertions(+), 77 deletions(-)
 create mode 100644 .changes/unreleased/Under the Hood-20240417-192843.yaml

diff --git a/.changes/unreleased/Under the Hood-20240417-192843.yaml b/.changes/unreleased/Under the Hood-20240417-192843.yaml
new file mode 100644
index 000000000..94ec9292d
--- /dev/null
+++ b/.changes/unreleased/Under the Hood-20240417-192843.yaml	
@@ -0,0 +1,6 @@
+kind: Under the Hood
+body: Validate that dbt-core and dbt-adapters remain de-coupled
+time: 2024-04-17T19:28:43.400023-04:00
+custom:
+  Author: mikealfare
+  Issue: "144"
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index faf874993..caf342092 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,30 +1,57 @@
 default_language_version:
-  python: python3
+    python: python3
 
 repos:
-- repo: https://github.com/pre-commit/pre-commit-hooks
-  rev: v4.4.0
-  hooks:
-  - id: check-yaml
-    args: [--unsafe]
-  - id: check-json
-  - id: end-of-file-fixer
-  - id: trailing-whitespace
-  - id: check-case-conflict
-- repo: local
-  hooks:
-  - id: black
-    name: black
-    entry: black
-    language: system
-    types: [python]
-  - id: flake8
-    name: flake8
-    entry: flake8
-    language: system
-    types: [python]
-  - id: mypy
-    name: mypy
-    entry: mypy
-    language: system
-    types: [python]
+-   repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.6.0
+    hooks:
+    -   id: check-yaml
+        args: [--unsafe]
+    -   id: check-json
+    -   id: end-of-file-fixer
+    -   id: trailing-whitespace
+    -   id: check-case-conflict
+
+-   repo: https://github.com/dbt-labs/pre-commit-hooks
+    rev: v0.1.0a1
+    hooks:
+    -   id: dbt-core-in-adapters-check
+
+-   repo: https://github.com/psf/black
+    rev: 24.4.0
+    hooks:
+    -   id: black
+        args:
+        -   --line-length=99
+        -   --target-version=py38
+        -   --target-version=py39
+        -   --target-version=py310
+        -   --target-version=py311
+        -   --force-exclude=dbt/adapters/events/adapter_types_pb2.py
+
+-   repo: https://github.com/pycqa/flake8
+    rev: 7.0.0
+    hooks:
+    -   id: flake8
+        exclude: dbt/adapters/events/adapter_types_pb2.py|tests/functional/
+        args:
+        -   --max-line-length=99
+        -   --select=E,F,W
+        -   --ignore=E203,E501,E704,E741,W503,W504
+        -   --per-file-ignores=*/__init__.py:F401
+
+-   repo: https://github.com/pre-commit/mirrors-mypy
+    rev: v1.9.0
+    hooks:
+    -   id: mypy
+        exclude: dbt/adapters/events/adapter_types_pb2.py|dbt-tests-adapter/dbt/__init__.py
+        args:
+        -   --explicit-package-bases
+        -   --ignore-missing-imports
+        -   --pretty
+        -   --show-error-codes
+        files: ^dbt/adapters/
+        additional_dependencies:
+        -   types-PyYAML
+        -   types-protobuf
+        -   types-pytz
diff --git a/dbt/adapters/base/impl.py b/dbt/adapters/base/impl.py
index a1df204f8..f58f8aba0 100644
--- a/dbt/adapters/base/impl.py
+++ b/dbt/adapters/base/impl.py
@@ -1328,8 +1328,8 @@ def calculate_freshness_from_metadata_batch(
         # Track schema, identifiers of sources for lookup from batch query
         schema_identifier_to_source = {
             (
-                source.path.get_lowered_part(ComponentName.Schema),
-                source.path.get_lowered_part(ComponentName.Identifier),
+                source.path.get_lowered_part(ComponentName.Schema),  # type: ignore
+                source.path.get_lowered_part(ComponentName.Identifier),  # type: ignore
             ): source
             for source in sources
         }
diff --git a/pyproject.toml b/pyproject.toml
index d9c3b4f45..fd72b9927 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -54,21 +54,11 @@ include = ["dbt/adapters", "dbt/include", "dbt/__init__.py"]
 [tool.hatch.envs.default]
 dependencies = [
     "dbt_common @ git+https://github.com/dbt-labs/dbt-common.git",
-    "black>=24.3",
-    "flake8",
-    "Flake8-pyproject",
-    "mypy",
     "pre-commit==3.7.0",
-    "types-PyYAML",
-    "types-protobuf",
-    "types-pytz",
 ]
 [tool.hatch.envs.default.scripts]
 dev = "pre-commit install"
-code-quality = "pre-commit run --all-files"  # runs others via hooks
-black = "python -m black ."
-flake8 = "python -m flake8 ."
-mypy = "python -m mypy ."
+code-quality = "pre-commit run --all-files"
 
 [tool.hatch.envs.unit-tests]
 dependencies = [
@@ -103,45 +93,8 @@ check-sdist = [
 ]
 protobuf = "protoc -I=./dbt/adapters/events --python_out=./dbt/adapters/events ./dbt/adapters/events/adapter_types.proto"
 
-[tool.black]
-force-exclude = "dbt/adapters/events/adapter_types_pb2.py"
-line-length = 99
-target-version = ['py38']
-
-[tool.flake8]
-select = ["E", "W", "F"]
-ignore = [
-    "E203",
-    "E501",
-    "E741",
-    "W503",
-    "W504",
-    "E704",  # generates false positives on protocols
-]
-exclude = [
-    "dbt/adapters/events/adapter_types_pb2.py",
-    "tests/functional",
-    "venv",
-]
-per-file-ignores = ["*/__init__.py: F401"]
-
 [tool.mypy]
-namespace_packages = true
-show_error_codes = true
-explicit_package_bases = true
-ignore_missing_imports = true
-pretty = true
 mypy_path = "third-party-stubs/"
-files = [
-    "dbt",
-    "tests/unit",
-]
-exclude = [
-    "dbt/adapters/events/adapter_types_pb2.py",
-    "dbt-tests-adapter/dbt/__init__.py",  # overlaps with `dbt/__init__.py` as expected for namespaces
-    "venv",
-    ".hatch_venvs",
-]
 [[tool.mypy.overrides]]
 module = ["dbt.adapters.events.adapter_types_pb2"]
 follow_imports = "skip"