Experiment writing to a tar.gz in Go

tgz.go

//+build ignore

package main

import (
	"archive/tar"
	"bytes"
	"compress/gzip"
	"io"
	"os"
)

func main() {
	var buf bytes.Buffer
	tw := tar.NewWriter(&buf)
	defer tw.Close()

	f, _ := os.Create("foo.tar.gz")
	defer f.Close()
	gw := gzip.NewWriter(f)
	defer gw.Close()
	defer io.Copy(gw, &buf)

	tw.WriteHeader(&tar.Header{
		Name: "foobar",
		Mode: 0666,
	})
}