Send test coverage for backend to codecov.io

Makefile

@@ -87,11 +87,20 @@ specs:
 # Coverage
 #
 .PHONY: coverage
-coverage:
-	$(info Running code coverage)
+# Run coverage-go first – it removes its backend coverage data
+# afterwards, so coverage-js will not label its report data as
+# belonging to the frontend.
+coverage: coverage-go coverage-js
+coverage-js:
+	$(info Running code coverage for JS)
 	@docker-compose run --rm \
         -e "CODECOV_TOKEN=${CODECOV_TOKEN}" \
         js yarn coverage
+coverage-go:
+	$(info Running code coverage for Go)
+	@docker-compose run --rm \
+        -e "CODECOV_TOKEN=${CODECOV_TOKEN}" \
+        api make coverage
 
 #
 # Building

api/Makefile

@@ -3,7 +3,11 @@ MAKEFLAGS += --silent
 all: clean test build
 
 test:
-	GOLANG_ENV=test go test -cover $(shell go list ./... | grep -v /vendor/)
+	GOLANG_ENV=test go test -coverprofile=coverage.txt -covermode=atomic -cover $(shell go list ./... | grep -v /vendor/)
+
+coverage:
+	# Use -c to remove processed reports so coverage-js won't find it
+	codecov -c -F backend -f coverage.txt -X gcov
 
 build:
 	go build -o api ./cmd/server

conf/docker/Dockerfile.api

@@ -13,4 +13,7 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get -q -y update && apt-get -q -y install
 COPY api/Gopkg.toml api/Gopkg.lock ./
 RUN dep ensure -vendor-only
 
+RUN curl https://raw.githubusercontent.com/codecov/codecov-bash/master/codecov > /usr/local/bin/codecov; \
+    chmod 755 /usr/local/bin/codecov
+
 CMD ./bin/run.sh

package.json

@@ -71,7 +71,7 @@
     "lint-css": "gulp lint",
     "lint-js": "eslint --ext .js,.jsx src/",
     "lint": "npm run lint-css && npm run lint-js",
-    "coverage": "NODE_ENV=test codecov",
+    "coverage": "NODE_ENV=test codecov -F frontend --disable=gcov",
     "build-assets": "gulp build",
     "build-js": "webpack -p --progress",
     "build-css": "npm run build-assets && node-sass-chokidar --include-path src/sass --output-style compressed --source-map true src/eqip.scss dist/css/eqip.css",