add missing makefile and build docs on PR

.drone.jsonnet

@@ -333,6 +333,9 @@ local PipelineDocs = {
         strip_prefix: 'docs/public/',
         target: '/${DRONE_REPO_NAME}',
       },
+      when: {
+        ref: ['refs/heads/master', 'refs/tags/**'],
+      },
     },
   ],
   depends_on: [
@@ -342,7 +345,7 @@ local PipelineDocs = {
     'build-container-arm',
   ],
   trigger: {
-    ref: ['refs/heads/master', 'refs/tags/**'],
+    ref: ['refs/heads/master', 'refs/tags/**', 'refs/pull/**'],
   },
 };
 

Makefile

@@ -0,0 +1,20 @@
+# renovate: datasource=github-releases depName=thegeeklab/hugo-geekdoc
+THEME_VERSION := v0.5.0
+THEME := hugo-geekdoc
+BASEDIR := docs
+THEMEDIR := $(BASEDIR)/themes
+
+.PHONY: all
+all: doc
+
+.PHONY: doc
+doc: doc-assets
+
+.PHONY: doc-assets
+doc-assets:
+	mkdir -p $(THEMEDIR)/$(THEME)/ ; \
+	curl -sSL "https://github.com/thegeeklab/$(THEME)/releases/download/${THEME_VERSION}/$(THEME).tar.gz" | tar -xz -C $(THEMEDIR)/$(THEME)/ --strip-components=1
+
+.PHONY: clean
+clean:
+	rm -rf $(THEMEDIR) && \