7260adfff9
This version avoids doing name lookups on creating tarball that
should be avoided in to not hit loading glibc shared libraries.
Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
(cherry picked from commit aa6a9891b0)
Signed-off-by: Tibor Vass <tibor@docker.com>
71 lines
1.4 KiB
Go
71 lines
1.4 KiB
Go
// Copyright 2013 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package tar_test
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import (
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"archive/tar"
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"bytes"
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"fmt"
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"io"
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"log"
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"os"
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)
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func Example_minimal() {
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// Create and add some files to the archive.
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var buf bytes.Buffer
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tw := tar.NewWriter(&buf)
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var files = []struct {
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Name, Body string
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}{
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{"readme.txt", "This archive contains some text files."},
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{"gopher.txt", "Gopher names:\nGeorge\nGeoffrey\nGonzo"},
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{"todo.txt", "Get animal handling license."},
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}
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for _, file := range files {
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hdr := &tar.Header{
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Name: file.Name,
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Mode: 0600,
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Size: int64(len(file.Body)),
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}
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if err := tw.WriteHeader(hdr); err != nil {
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log.Fatal(err)
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}
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if _, err := tw.Write([]byte(file.Body)); err != nil {
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log.Fatal(err)
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}
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}
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if err := tw.Close(); err != nil {
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log.Fatal(err)
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}
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// Open and iterate through the files in the archive.
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tr := tar.NewReader(&buf)
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for {
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hdr, err := tr.Next()
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if err == io.EOF {
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break // End of archive
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}
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if err != nil {
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log.Fatal(err)
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}
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fmt.Printf("Contents of %s:\n", hdr.Name)
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if _, err := io.Copy(os.Stdout, tr); err != nil {
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log.Fatal(err)
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}
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fmt.Println()
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}
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// Output:
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// Contents of readme.txt:
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// This archive contains some text files.
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// Contents of gopher.txt:
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// Gopher names:
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// George
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// Geoffrey
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// Gonzo
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// Contents of todo.txt:
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// Get animal handling license.
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}
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