78 lines
1.5 KiB
Go
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.
|
|
}
|