Docker compose with test script for local testing.

Dockerfile

@@ -0,0 +1,30 @@
+# syntax=docker/dockerfile:1
+FROM python:3.9-slim-bullseye AS test
+
+LABEL org.opencontainers.image.authors="[email protected]"
+LABEL description="Xul Dockerfile"
+LABEL version="1.0"
+
+# Packages.
+RUN apt-get update \
+  && apt-get dist-upgrade -y \
+  && apt-get install --no-install-recommends -y \
+  && apt-get autoremove -y \
+  && rm -rf /var/lib/apt/lists/* /var/cache/debconf/*-old
+
+ENV PYTHONUNBUFFERED=1 PIP_NO_CACHE_DIR=1
+
+# Recent pip, setuptools and wheel.
+RUN pip install --upgrade pip setuptools wheel
+
+# Create workdir
+WORKDIR /app
+
+# Install package.
+COPY pyproject.toml ./
+COPY src src
+COPY docs docs
+RUN pip install .[test]
+
+# Copy test script.
+COPY test.sh ./

docker-compose.yml

@@ -0,0 +1,8 @@
+services:
+
+  test:
+    container_name: xul-test
+    build:
+      target: test
+
+    command: ./test.sh

pyproject.toml

@@ -80,7 +80,7 @@ line_length = 100
 
 [tool.mypy]
 cache_dir = "/tmp/.mypy_cache"
-exclude = ["^docs/"]
+exclude = ["^docs/", "^build/"]
 pretty = true
 
 [tool.ruff]

test.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+
+set -u # crash on missing env
+set -e # stop on any error
+
+echo() {
+   builtin echo -e "$@"
+}
+
+
+echo "Lint checks (Ruff)"
+ruff check --diff
+
+echo "\nCheck import sort (isort)"
+isort --check --diff .
+
+echo "\nCheck formatting (Black)"
+black --check --diff .
+
+echo "\nCheck typing (mypy)"
+mypy .
+
+echo "\nChecks complete"