adding coveralls to travis ci build (#200)

* adding coveralls to travis ci build

* changing coveralls .travis.yml cmd

.travis.yml

@@ -1,6 +1,9 @@
 language: go
 go:
-  - "1.10"
+  - 1.x
+
+before_install:
+  - go get github.com/mattn/goveralls
 
 install:
   - curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
@@ -10,6 +13,7 @@ install:
 script:
   - make all
   - make test coverage
+  - $GOPATH/bin/goveralls -coverprofile=profile.cov -service=travis-ci
 
 deploy:
   provider: releases

Makefile

@@ -277,8 +277,8 @@ test:
 	go test $(shell go list ./... | grep -v /vendor/) -race -short -v
 
 coverage:
-	go test -covermode=count -coverprofile=coverage.out $(shell go list ./... | grep -v /vendor/)
-	go tool cover -func=coverage.out
+	go test -covermode=count -coverprofile=profile.cov $(shell go list ./... | grep -v /vendor/)
+	go tool cover -func=profile.cov
 
 clean:
 	-rm -rf ${CURRENT_DIR}/dist

README.md

@@ -3,6 +3,7 @@
 [![Go Report Card](https://goreportcard.com/badge/github.com/argoproj/argo-events)](https://goreportcard.com/report/github.com/argoproj/argo-events)
 [![slack](https://img.shields.io/badge/slack-argoproj-brightgreen.svg?logo=slack)](https://argoproj.github.io/community/join-slack)
 [![Build Status](https://travis-ci.org/argoproj/argo-events.svg?branch=master)](https://travis-ci.org/argoproj/argo-events)
+[![Coverage Status](https://coveralls.io/repos/github/argoproj/argo-events/badge.svg)](https://coveralls.io/github/argoproj/argo-events)
 
 <p align="center">
   <img src="https://github.com/argoproj/argo-events/blob/master/docs/assets/argo-events-logo.png?raw=true" alt="Logo"/>