mirror of
https://github.com/genuinetools/reg.git
synced 2024-08-21 14:20:23 -04:00
81 lines
1.6 KiB
Go
81 lines
1.6 KiB
Go
// Copyright 2013 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package tar_test
|
|
|
|
import (
|
|
"archive/tar"
|
|
"bytes"
|
|
"fmt"
|
|
"io"
|
|
"log"
|
|
"os"
|
|
)
|
|
|
|
func Example() {
|
|
// Create a buffer to write our archive to.
|
|
buf := new(bytes.Buffer)
|
|
|
|
// Create a new tar archive.
|
|
tw := tar.NewWriter(buf)
|
|
|
|
// Add some files to the archive.
|
|
var files = []struct {
|
|
Name, Body string
|
|
}{
|
|
{"readme.txt", "This archive contains some text files."},
|
|
{"gopher.txt", "Gopher names:\nGeorge\nGeoffrey\nGonzo"},
|
|
{"todo.txt", "Get animal handling license."},
|
|
}
|
|
for _, file := range files {
|
|
hdr := &tar.Header{
|
|
Name: file.Name,
|
|
Mode: 0600,
|
|
Size: int64(len(file.Body)),
|
|
}
|
|
if err := tw.WriteHeader(hdr); err != nil {
|
|
log.Fatalln(err)
|
|
}
|
|
if _, err := tw.Write([]byte(file.Body)); err != nil {
|
|
log.Fatalln(err)
|
|
}
|
|
}
|
|
// Make sure to check the error on Close.
|
|
if err := tw.Close(); err != nil {
|
|
log.Fatalln(err)
|
|
}
|
|
|
|
// Open the tar archive for reading.
|
|
r := bytes.NewReader(buf.Bytes())
|
|
tr := tar.NewReader(r)
|
|
|
|
// Iterate through the files in the archive.
|
|
for {
|
|
hdr, err := tr.Next()
|
|
if err == io.EOF {
|
|
// end of tar archive
|
|
break
|
|
}
|
|
if err != nil {
|
|
log.Fatalln(err)
|
|
}
|
|
fmt.Printf("Contents of %s:\n", hdr.Name)
|
|
if _, err := io.Copy(os.Stdout, tr); err != nil {
|
|
log.Fatalln(err)
|
|
}
|
|
fmt.Println()
|
|
}
|
|
|
|
// Output:
|
|
// Contents of readme.txt:
|
|
// This archive contains some text files.
|
|
// Contents of gopher.txt:
|
|
// Gopher names:
|
|
// George
|
|
// Geoffrey
|
|
// Gonzo
|
|
// Contents of todo.txt:
|
|
// Get animal handling license.
|
|
}
|