Improve demo command

.gitignore

@@ -1 +1,2 @@
 **/themes/
+demo/

Makefile

@@ -3,9 +3,8 @@ LESS_FILE = style.less
 CSS_DIR = ./static/css
 CSS_FILE = style.min.css
 CSS_TMP_FILE = tmp.css
-current_dir = $(shell pwd)
 
-.PHONY: clean build
+.PHONY: clean demo build
 
 build: clean
 	lessc $(LESS_DIR)/$(LESS_FILE) > $(CSS_DIR)/$(CSS_TMP_FILE)
@@ -13,18 +12,11 @@ build: clean
 	rm -f $(CSS_DIR)/$(CSS_TMP_FILE)
 
 demo: build
-	mkdir -p exampleSite/themes/coder
-	mkdir -p exampleSite/themes/coder/archetypes
-	mkdir -p exampleSite/themes/coder/images
-	mkdir -p exampleSite/themes/coder/layouts
-	mkdir -p exampleSite/themes/coder/static
-	cp -r $(current_dir)/archetypes/* exampleSite/themes/coder/archetypes/
-	cp -r $(current_dir)/images/* exampleSite/themes/coder/images
-	cp -r $(current_dir)/layouts/* exampleSite/themes/coder/layouts
-	cp -r $(current_dir)/static/* exampleSite/themes/coder/static
-	cp -r $(current_dir)/theme.toml exampleSite/themes/coder/theme.toml
-	cd exampleSite && hugo serve -D
+	mkdir -p demo/themes/coder
+	rsync -av exampleSite/* demo
+	rsync -av --exclude='demo' --exclude='exampleSite' --exclude='.git' . demo/themes/coder
+	cd demo && hugo serve -D
 
 clean:
 	rm -f $(CSS_DIR)/*.css
-	rm -rf exampleSite/themes/coder
+	rm -rf demo