Add coveralls integration (luraproject#5)

* coveralls config added
* avoid testing the examples
* typo fixed
* coveralls badge added
* use the coverage.sh trick

.travis.yml

@@ -3,3 +3,6 @@ language: go
 go:
     - 1.7.4
     - tip
+
+script:
+    - make coveralls

Makefile

@@ -1,5 +1,7 @@
 .PHONY: all deps test build run benchmark cover
 
+PACKAGES = $(shell go list ./... | grep -v /examples/)
+
 all: deps test build
 
 deps:
@@ -9,11 +11,11 @@ deps:
 
 test:
 	go fmt ./...
-	go test -cover ./...
+	go test -cover $(PACKAGES)
 	go vet ./...
 
 benchmark:
-	go test -bench=. -benchtime=3s ./...
+	go test -bench=. -benchtime=3s $(PACKAGES)
 
 build: build_gin_example build_mux_example
 
@@ -22,3 +24,7 @@ build_gin_example:
 
 build_mux_example:
 	cd examples/mux/ && make && cd ../.. && cp examples/mux/krakend_mux_example* .
+
+coveralls: all
+	go get github.com/mattn/goveralls
+	sh coverage.sh --coveralls

README.md

@@ -2,7 +2,7 @@
 
 # KrakenD
 
-[![Travis-CI](https://travis-ci.org/devopsfaith/krakend.svg?branch=master)](https://travis-ci.org/devopsfaith/krakend) [![Go Report Card](https://goreportcard.com/badge/github.com/devopsfaith/krakend)](https://goreportcard.com/report/github.com/devopsfaith/krakend) [![GoDoc](https://godoc.org/github.com/devopsfaith/krakend?status.svg)](https://godoc.org/github.com/devopsfaith/krakend)
+[![Travis-CI](https://travis-ci.org/devopsfaith/krakend.svg?branch=master)](https://travis-ci.org/devopsfaith/krakend) [![Go Report Card](https://goreportcard.com/badge/github.com/devopsfaith/krakend)](https://goreportcard.com/report/github.com/devopsfaith/krakend) [![Coverage Status](https://coveralls.io/repos/github/devopsfaith/krakend/badge.svg?branch=master)](https://coveralls.io/github/devopsfaith/krakend?branch=master) [![GoDoc](https://godoc.org/github.com/devopsfaith/krakend?status.svg)](https://godoc.org/github.com/devopsfaith/krakend)
 
 Ultra performant API Gateway with middlewares
 

coverage.sh

@@ -0,0 +1,53 @@
+#!/bin/sh
+# Generate test coverage statistics for Go packages.
+#
+# Works around the fact that `go test -coverprofile` currently does not work
+# with multiple packages, see https://code.google.com/p/go/issues/detail?id=6909
+#
+# Usage: script/coverage [--html|--coveralls]
+#
+#     --html      Additionally create HTML report and open it in browser
+#     --coveralls Push coverage statistics to coveralls.io
+#
+# File taken from https://github.com/mlafeldt/chef-runner/blob/v0.7.0/script/coverage
+
+set -e
+
+workdir=.cover
+profile="$workdir/cover.out"
+mode=count
+
+generate_cover_data() {
+    rm -rf "$workdir"
+    mkdir "$workdir"
+
+    for pkg in "$@"; do
+        f="$workdir/$(echo $pkg | tr / -).cover"
+        go test -covermode="$mode" -coverprofile="$f" "$pkg"
+    done
+
+    echo "mode: $mode" >"$profile"
+    grep -h -v "^mode:" "$workdir"/*.cover >>"$profile"
+}
+
+show_cover_report() {
+    go tool cover -${1}="$profile"
+}
+
+push_to_coveralls() {
+    echo "Pushing coverage statistics to coveralls.io"
+    goveralls -coverprofile="$profile"
+}
+
+generate_cover_data $(go list ./... | grep -v /examples/)
+show_cover_report func
+case "$1" in
+"")
+    ;;
+--html)
+    show_cover_report html ;;
+--coveralls)
+    push_to_coveralls ;;
+*)
+    echo >&2 "error: invalid option: $1"; exit 1 ;;
+esac

examples/gin/main.go

@@ -76,7 +76,7 @@ type customProxyFactory struct {
 }
 
 // New implements the Factory interface
-func (cf customRouterFactory) New(cfg *config.EndpointConfig) (p proxy.Proxy, err error) {
+func (cf customProxyFactory) New(cfg *config.EndpointConfig) (p proxy.Proxy, err error) {
 	p, err = cf.factory.New(cfg)
 	if err == nil {
 		p = proxy.NewLoggingMiddleware(cf.logger, cfg.Endpoint)(p)