ensure cruft.json added to git commits

{{cookiecutter.project_name}}/Makefile

@@ -140,14 +140,19 @@ PROJECT_FOLDERS = sqlschema shex shacl protobuf prefixmap owl jsonschema jsonld
 git-init-add: git-init git-add git-commit git-status
 git-init:
 	git init
-git-add:
-	git add .gitignore .github Makefile LICENSE *.md examples utils about.yaml mkdocs.yml poetry.lock project.Makefile pyproject.toml src/{{cookiecutter.__project_slug}}/schema/*yaml src/*/datamodel/*py src/data src/docs tests
+git-add: .cruft.json
+	git add .gitignore .github .cruft.json Makefile LICENSE *.md examples utils about.yaml mkdocs.yml poetry.lock project.Makefile pyproject.toml src/{{cookiecutter.__project_slug}}/schema/*yaml src/*/datamodel/*py src/data src/docs tests
 	git add $(patsubst %, project/%, $(PROJECT_FOLDERS))
 git-commit:
 	git commit -m 'Initial commit' -a
 git-status:
 	git status
 
+# only necessary if setting up via cookiecutter
+.cruft.json:
+	echo "creating a stub for .cruft.json. IMPORTANT: setup via cruft not cookiecutter recommended!" ; \
+	touch $@
+
 clean:
 	rm -rf $(DEST)
 	rm -rf tmp