Only run coverage on merges/pushes to master (#1783)

.drone.yml

@@ -73,8 +73,10 @@ pipeline:
   coverage:
     image: plugins/coverage
     server: https://coverage.gitea.io
+    commands:
+      - make test-coverage
     when:
-      event: [ push, tag, pull_request ]
+      event: [ push, tag ]
 
   docker:
     image: plugins/docker

Makefile

@@ -80,6 +80,10 @@ integrations: build
 
 .PHONY: test
 test:
+	go test $(PACKAGES)
+
+.PHONY: test-coverage
+test-coverage:
 	for PKG in $(PACKAGES); do go test -cover -coverprofile $$GOPATH/src/$$PKG/coverage.out $$PKG || exit 1; done;
 
 .PHONY: test-vendor