Code coverage and coveralls

Added code coverage to the tests and setup coveralls to track the
coverage over time.

Issue eksctl-io#46

Signed-off-by: Richard Case <richard.case@outlook.com>

.circleci/config.yml

@@ -11,6 +11,12 @@ jobs:
     steps:
       - checkout
       - run: make release
+  test:
+    machine: true
+    steps:
+      - checkout
+      - run: make install-goveralls
+      - run: make coverage
 
 workflows:
   version: 2

.gitignore

@@ -15,3 +15,6 @@ _site
 
 # Do not add temporary files here
 # use ~/.config/git/ignore instead
+
+# Test coverage output
+coverage.out

Makefile

@@ -10,13 +10,20 @@ build:
 
 .PHONY: test
 test:
-	go test -v ./pkg/... ./cmd/...
+	go test -v -covermode=count -coverprofile=coverage.out ./pkg/... ./cmd/...
+
+.PHONY: coverage
+coverage: test
+	goveralls -coverprofile=coverage.out -service=circle-ci -repotoken $(COVERALLS_TOKEN)
+
+.PHONY: install-goveralls
+install-goveralls:
+	go get github.com/mattn/goveralls
 
 .PHONY: update-bindata
 update-bindata:
 	go generate ./pkg/eks
 
-
 .PHONY: install-bindata
 install-bindata:
 	go get -u github.com/jteeuwen/go-bindata/...

README.md

@@ -1,6 +1,6 @@
 # `eksctl` - a CLI for Amazon EKS
 
-[![Circle CI](https://circleci.com/gh/weaveworks/eksctl/tree/master.svg?style=shield)](https://circleci.com/gh/weaveworks/eksctl/tree/master)
+[![Circle CI](https://circleci.com/gh/weaveworks/eksctl/tree/master.svg?style=shield)](https://circleci.com/gh/weaveworks/eksctl/tree/master) [![Coverage Status](https://coveralls.io/repos/github/weaveworks/eksctl/badge.svg?branch=master)](https://coveralls.io/github/weaveworks/eksctl?branch=master)
 
 `eksctl` is a simple CLI tool for creating clusters on EKS - Amazon's new managed Kubernetes service for EC2. It is written in Go, and based on Amazon's official CloudFormation templates.