build: Include data files

docker/base.Dockerfile

@@ -48,7 +48,14 @@ RUN mkdir -p ~/.fonts/opentype && \
     fc-cache -f
 
 # Copy everything required to build xml2rfc
-COPY requirements.txt setup.py README.md LICENSE Makefile configtest.py .
+COPY requirements.txt setup.py setup.cfg pyproject.toml README.md LICENSE Makefile configtest.py .
+
+
+# Install & update build tools
+RUN pip3 install --upgrade \
+    pip \
+    setuptools \
+    wheel
 
 # Install Python dependencies
 RUN pip3 install -r requirements.txt \
@@ -57,11 +64,10 @@ RUN pip3 install -r requirements.txt \
     dict2xml \
     "pypdf>=3.2.1"
 
-
 COPY xml2rfc ./xml2rfc
 
 # Build xml2rfc & finalize
 RUN make install && \
     pip3 uninstall -y decorator dict2xml pypdf && \
     rm setup.py Makefile configtest.py requirements.txt && \
-    rm -r xml2rfc build dist
+    rm -r xml2rfc build

setup.cfg

@@ -30,11 +30,16 @@ classifiers =
     Programming Language :: Python :: 3.11
 
 [options]
-packages = xml2rfc, xml2rfc/writers, xml2rfc/util, xml2rfc/uniscripts
+packages = xml2rfc, xml2rfc/writers, xml2rfc/util, xml2rfc/uniscripts, xml2rfc/data, xml2rfc/templates
 zip_safe = False
 include_package_data = True
 install_requires = file: requirements.txt
 
+[options.package_data]
+* =
+    data/*
+    templates/*
+
 [options.entry_points]
 console_scripts =
     xml2rfc = xml2rfc.run:main