go example_test 源码
golang example_test 代码
文件路径：/src/archive/tar/example_test.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_minimal() {
// Create and add some files to the archive.
var buf bytes.Buffer
tw := tar.NewWriter(&buf)
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.Fatal(err)
}
if _, err := tw.Write([]byte(file.Body)); err != nil {
log.Fatal(err)
}
}
if err := tw.Close(); err != nil {
log.Fatal(err)
}
// Open and iterate through the files in the archive.
tr := tar.NewReader(&buf)
for {
hdr, err := tr.Next()
if err == io.EOF {
break // End of archive
}
if err != nil {
log.Fatal(err)
}
fmt.Printf("Contents of %s:\n", hdr.Name)
if _, err := io.Copy(os.Stdout, tr); err != nil {
log.Fatal(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.
}
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