Adds do.sh build script

Jenkinsfile

@@ -18,7 +18,7 @@ pipeline {
 		}
 		stage('Compile') {
 			steps {
-				sh 'go build'
+				sh './do.sh build'
 			}
 		}
 		stage('Test') {
@@ -26,7 +26,7 @@ pipeline {
 				stage('go vet') {
 					steps {
 						echo 'Running vetting'
-						sh 'go vet .'
+						sh './do.sh _vet'
 					}
 				}
 				stage('test') {
@@ -36,7 +36,7 @@ pipeline {
 					steps {
 						echo 'Running test'
 
-						sh 'go test -v -coverprofile=coverage.out -covermode count > tests.out ./...'
+						sh './do.sh _test'
 
 						sh "go get github.com/tebeka/go2xunit"
 						sh "go2xunit < tests.out -output tests.xml"
@@ -54,7 +54,7 @@ pipeline {
 						PATH="${env.PATH}:${env.GOPATH}/bin"
 					}
 					steps {
-						sh 'golint -set_exit_status ./...'
+						sh './do.sh _lint'
 					}
 				}
 			}

do.sh

@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+# Do - The Simplest Build Tool on Earth.
+# Documentation and examples see https://github.com/8gears/do
+
+set -Eeuo pipefail # -e "Automatic exit from bash shell script on error"  -u "Treat unset variables and parameters as errors"
+
+build() {
+   echo "I am ${FUNCNAME[0]}ing"
+   go version
+   go build
+}
+
+test() {
+   echo "I am ${FUNCNAME[0]}ing"
+   _test
+   _lint
+   _vet
+}
+
+_test() {
+   echo "I am ${FUNCNAME[0]}ing"
+   go test -v -coverprofile=coverage.out -covermode count ./... | tee tests.out
+}
+
+_lint() {
+   echo "I am ${FUNCNAME[0]}ing"
+   golint -set_exit_status ./...
+}
+
+_vet() {
+   echo "I am ${FUNCNAME[0]}ing"
+   go vet ./...
+}
+
+all() {
+   test && build
+}
+
+"$@" # <- execute the task
+
+[ "$#" -gt 0 ] || printf "Usage:\n\t./do.sh %s\n" "($(compgen -A function | grep '^[^_]' | paste -sd '|' -))"

main.go

@@ -45,8 +45,3 @@ func main() {
 	}
 
 }
-
-// Hello is method here to be testable.
-func Hello() string {
-	return "Hello, world!\n"
-}

main_test.go

@@ -1,10 +1 @@
 package main
-
-import "testing"
-
-func TestHello(t *testing.T) {
-	want := "Hello, world!\n"
-	if got := Hello(); got != want {
-		t.Errorf("Hello() = %q, want %q", got, want)
-	}
-}