🐛 refactor Make file. resolves #149

Author: chfw

templates/Makefile.jj2

@@ -13,9 +13,7 @@ lint:
 	bash lint.sh
 
 format:
-	isort -y $(find {{name | replace('-', '_')}} -name "*.py"|xargs echo) $(find tests -name "*.py"|xargs echo)
-	black -l 79 {{name | replace('-', '_')}}
-	black -l 79 tests
+    bash format.sh
 
 git-diff-check:
 	git diff --exit-code

templates/format.sh.jj2

@@ -0,0 +1,3 @@
+isort -y $(find {{name | replace('-', '_')}} -name "*.py"|xargs echo) $(find tests -name "*.py"|xargs echo)
+black -l 79 {{name | replace('-', '_')}}
+black -l 79 tests