local-server/vendor/github.com/cavaliercoder/go-cpio/example_test.go
Mikaël Cluseau 4d889632f6 vendor
2018-06-17 18:32:44 +11:00

78 lines
1.5 KiB
Go

package cpio_test
import (
"bytes"
"fmt"
"io"
"log"
"os"
"github.com/cavaliercoder/go-cpio"
)
func Example() {
// Create a buffer to write our archive to.
buf := new(bytes.Buffer)
// Create a new cpio archive.
w := cpio.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 := &cpio.Header{
Name: file.Name,
Mode: 0600,
Size: int64(len(file.Body)),
}
if err := w.WriteHeader(hdr); err != nil {
log.Fatalln(err)
}
if _, err := w.Write([]byte(file.Body)); err != nil {
log.Fatalln(err)
}
}
// Make sure to check the error on Close.
if err := w.Close(); err != nil {
log.Fatalln(err)
}
// Open the cpio archive for reading.
b := bytes.NewReader(buf.Bytes())
r := cpio.NewReader(b)
// Iterate through the files in the archive.
for {
hdr, err := r.Next()
if err == io.EOF {
// end of cpio archive
break
}
if err != nil {
log.Fatalln(err)
}
fmt.Printf("Contents of %s:\n", hdr.Name)
if _, err := io.Copy(os.Stdout, r); 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.
}