Start using github actions matrix to run tests instead of tox and add running mypy

.github/workflows/run-tests.yml

@@ -13,13 +13,18 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13.0-rc.1"]
-        django-version: ["django==4.2.*", "django==5.0.*", "django==5.1.*", "django==5.2.*"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        django-version: ["django==4.2.*", "django==5.0.*", "django==5.1.*"]
         exclude:
-          - python-version: "3.12"
-            django-version: "django<4.2.8"
-          - python-version: "3.13.0-rc.1"
-            django-version: "django<5.2"
+          - python-version: "3.8"
+            django-version: "django==5.0.*"
+          - python-version: "3.8"
+            django-version: "django==5.1.*"
+          - python-version: "3.9"
+            django-version: "django==5.0.*"
+          - python-version: "3.9"
+            django-version: "django==5.1.*"
+
     steps:
       - uses: actions/checkout@v3
       - name: Set up Python ${{ matrix.python-version }}
@@ -29,10 +34,16 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install -r requirements_test.txt
+          pip install ${{ matrix.django-version }}
+          echo ${{ matrix.django-version }} >> dj.txt
+          pip install -c dj.txt -r requirements_test.txt
       - name: Lint with ruff
         run: |
           # stop the build if there are Python syntax errors or undefined names
           make ruff-check
-      - name: Run Tox
-        run: tox
+      - name: MyPy
+        run: mypy django_mail_viewer
+      - name: Run Tests
+        run: |
+          coverage run --source django_mail_viewer runtests.py
+          coverage report

Dockerfile

@@ -1,4 +1,6 @@
-FROM python:3.8-bookworm AS dev
+ARG PYTHON_VERSION=3.8
+ARG DEBIAN_DISTRO=bookworm
+FROM python:${PYTHON_VERSION}-${DEBIAN_DISTRO} AS dev
 # Dockerfile for running a test django installation
 LABEL maintainer="Justin Michalicek <[email protected]>"
 ENV PYTHONUNBUFFERED 1

django_mail_viewer/__init__.py

@@ -1 +1 @@
-__version__ = '2.2.0'
+__version__ = "2.2.0"

django_mail_viewer/backends/database/models.py

@@ -1,7 +1,7 @@
 import email.message
 import email.utils
 import json
-from typing import TYPE_CHECKING, Any, Dict, List, Union
+from typing import Any, Dict, List, Union
 
 from django.db import models
 
@@ -12,7 +12,7 @@ class AbstractBaseEmailMessage(models.Model):
     storage for the Message FileField. Once Django 3.1+ only is supported then a callable may be used
     rendering this not really necessary.
 
-    To customize, subclass this and add a `FileField()` named `serialized_message_file` with the storage you would
+    To customize, subclass this and add a `FileField()` named `file_attachment` with the storage you would
     like to use.
     """
 
@@ -30,17 +30,11 @@ class AbstractBaseEmailMessage(models.Model):
     created_at = models.DateTimeField(auto_now_add=True)
     updated_at = models.DateTimeField(auto_now=True)
 
+    file_attachment: models.FileField
+
     class Meta:
         abstract = True
 
-    def __init__(self, *args, **kwargs):
-        super().__init__(*args, **kwargs)
-
-        # methods here expect the concrete subclasses to implement the file_attachment field
-        # should only be necessary until django 2.2 support is dropped... I hope
-        if TYPE_CHECKING and not hasattr(self, "file_attachment"):
-            self.file_attachment = models.FileField(blank=True, default="", upload_to="mailviewer_attachments")
-
     # I really only need/use get_filename(), get_content_type(), get_payload(), walk()
     # returns Any due to failobj
     def get(self, attr: str, failobj: Any = None) -> Any:

pyproject.toml

@@ -1,9 +1,11 @@
 [tool.mypy]
 plugins = ["mypy_django_plugin.main"]
+ignore_missing_imports = true
 # for some reason this is not following the ignore of the settings file...
 exclude = [
   'migrations',
-  'test_project\/test_project\/settings\.py'
+  'test_project\/test_project\/settings\.py',
+  'docs',
 ]
 
 [tool.django-stubs]

requirements_test.txt

@@ -4,8 +4,7 @@ flake8
 pytest
 tox
 tox-gh-actions
-django-stubs
-mypy
+django-stubs[compatible-mypy]
 typing-extensions
 black
 ruff