add coveralls integration

.travis.yml

@@ -13,7 +13,8 @@ before_install:
   - if [[ "$SrcDir" != "$DestDir" ]]; then mv "$SrcDir" "$DestDir"; cd ../../mesos/$RepoName; export TRAVIS_BUILD_DIR=`dirname $TRAVIS_BUILD_DIR`/$RepoName; fi
   - sed -i 's/git@github.com:/https:\/\/github.com\//' .gitmodules
   - git submodule update --init --recursive
+  - go get github.com/mattn/goveralls
 install:
   - make install
 script:
-  - make test
+  - rm -rf $HOME/gopath/pkg && make coverage && $HOME/gopath/bin/goveralls -service=travis-ci -coverprofile=_output/coverage.out

Makefile

@@ -10,6 +10,7 @@ PACKAGES ?= $(shell go list ${API_PKG}/...|grep -v vendor)
 TEST_DIRS ?= $(sort $(dir $(shell find ${API_PKG} -name '*_test.go' | grep -v vendor)))
 BINARIES ?= $(shell go list -f "{{.Name}} {{.ImportPath}}" ${CMD_PKG}/...|grep -v -e vendor|grep -e ^main|cut -f2 -d' ')
 TEST_FLAGS ?= -race
+COVERAGE_TARGETS = ${TEST_DIRS:%/=%.cover}
 
 .PHONY: all
 all: test
@@ -26,6 +27,13 @@ test:
 test-verbose: TEST_FLAGS += -v
 test-verbose: test
 
+.PHONY: coverage $(COVERAGE_TARGETS)
+coverage: TEST_FLAGS = -v -cover -race
+coverage: $(COVERAGE_TARGETS)
+	cat _output/*.cover | sed -e '2,$$ s/^mode:.*$$//' -e '/^$$/d' >_output/coverage.out
+$(COVERAGE_TARGETS):
+	mkdir -p _output && go test ./$(@:%.cover=%) $(TEST_FLAGS) -coverprofile=_output/$(subst /,___,$@)
+
 .PHONY: vet
 vet:
 	go $@ $(PACKAGES)

README.md

@@ -6,6 +6,7 @@ One of the objectives of this project is to provide an idiomatic Go API that mak
 
 [![Build Status](https://travis-ci.org/mesos/mesos-go.svg)](https://travis-ci.org/mesos/mesos-go)
 [![GoDoc] (https://godoc.org/github.com/mesos/mesos-go?status.png)](https://godoc.org/github.com/mesos/mesos-go)
+[![Coverage Status](https://coveralls.io/repos/github/mesos/mesos-go/badge.svg?branch=master)](https://coveralls.io/github/mesos/mesos-go?branch=master)
 
 ## Status
 New projects should use the Mesos v1 API bindings, located in `api/v1`.