func CleanupBuildArtifacts() {
	if tmpDir != "" {
		os.RemoveAll(tmpDir)
		tmpDir = ""
	}
}
/*
You should call CleanupBuildArtifacts before your test ends to clean up any temporary artifacts generated by
gexec. In Ginkgo this is typically done in an AfterSuite callback.
package gexec
import (
	"errors"
	"fmt"
	"io/ioutil"
	"os"
	"os/exec"
	"path"
	"path/filepath"
	"runtime"
)
var tmpDir string
func Build(packagePath string, args ...string) (compiledPath string, err error) {
	return BuildIn(os.Getenv("GOPATH"), packagePath, args...)
}
func BuildIn(gopath string, packagePath string, args ...string) (compiledPath string, err error) {
	tmpDir, err := temporaryDirectory()
	if err != nil {
		return "", err
	}
	if len(gopath) == 0 {
		return "", errors.New("$GOPATH not provided when building " + packagePath)
	}
	executable := filepath.Join(tmpDir, path.Base(packagePath))
	if runtime.GOOS == "windows" {
		executable = executable + ".exe"
	}
	cmdArgs := append([]string{"build"}, args...)
	cmdArgs = append(cmdArgs, "-o", executable, packagePath)
	build := exec.Command("go", cmdArgs...)
	build.Env = append([]string{"GOPATH=" + gopath}, os.Environ()...)
	output, err := build.CombinedOutput()
	if err != nil {
		return "", fmt.Errorf("Failed to build %s:\n\nError:\n%s\n\nOutput:\n%s", packagePath, err, string(output))
	}
	return executable, nil
}