Added github workflow to check if submodules have missing __init__.py files. (#45)

Solves #44 by adding a github workflow to check if submodules have
missing `__init__.py` files.

Author: satvshr

.github/workflows/test.yml

@@ -59,6 +59,9 @@ jobs:
             echo "No changed files to check."
           fi
 
+      - name: check missing __init__ files
+        run: bash build_tools/fail_on_missing_init_files.sh
+
   run-tests-no-extras:
     needs: code-quality
     strategy:

build_tools/fail_on_missing_init_files.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+# Script to search for missing init FILES.
+set -euxo pipefail
+
+FILES=$( find ./pyaptamer -type d '!' -exec test -e "{}/__init__.py" ";" -not -path "**/__pycache__" -print )
+
+if [[ -n "$FILES" ]]
+then
+    echo "Missing __init__.py files detected in the following modules:"
+    echo "$FILES"
+    exit 1
+fi

pyproject.toml

@@ -38,3 +38,6 @@ quote-style = "double"
 line-ending = "lf"
 indent-style = "space"
 docstring-code-format = true
+
+[tool.setuptools.packages.find]
+include = ["pyaptamer*"]