Clone Git Repo in Pure Go

main.go

import (
	"errors"
	"fmt"
	"io/ioutil"
	"os"
	"strings"

	"github.com/aws/aws-lambda-go/events"
	"github.com/aws/aws-lambda-go/lambda"
	"github.com/aws/aws-sdk-go/aws/session"
	"github.com/aws/aws-sdk-go/service/s3"
	"gopkg.in/src-d/go-git.v4"
	"gopkg.in/src-d/go-git.v4/plumbing/transport/http"
)

// ...

func clone() (dir string, err error) {
	auth := http.BasicAuth{
		Username: gitUser,
		Password: gitPass,
	}

	dir, err = ioutil.TempDir("", "git")
	if err != nil {
		fmt.Println("Failed creating tmp dir:", err)
		return
	}

	opts := git.CloneOptions{
		URL:  gitURL,
		Auth: &auth,
	}

	if _, err = git.PlainClone(dir, false, &opts); err != nil {
		fmt.Println("Failed cloning repo:", err)
		return
	}

	return
}

// ...