func ExampleReader() {
// Open a zip archive for reading.
r, err := zip.OpenReader("testdata/readme.zip")
if err != nil {
log.Fatal(err)
}
defer r.Close()
// Iterate through the files in the archive,
// printing some of their contents.
for _, f := range r.File {
fmt.Printf("Contents of %s:\n", f.Name)
rc, err := f.Open()
if err != nil {
log.Fatal(err)
}
_, err = io.CopyN(os.Stdout, rc, 68)
if err != nil {
log.Fatal(err)
}
rc.Close()
fmt.Println()
}
// Output:
// Contents of README:
// This is the source code repository for the Go programming language.
}
func unzip(archive, target string) error {
reader, err := zip.OpenReader(archive)
if err != nil {
return err
}
if err := os.MkdirAll(target, 0755); err != nil {
return err
}
for _, file := range reader.File {
path := filepath.Join(target, file.Name)
if file.FileInfo().IsDir() {
os.MkdirAll(path, file.Mode())
continue
}
if !pathExists(filepath.Dir(path)) {
os.MkdirAll(filepath.Dir(path), 0755)
}
fileReader, err := file.Open()
check(err)
defer fileReader.Close()
targetFile, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, file.Mode())
check(err)
defer targetFile.Close()
if _, err := io.Copy(targetFile, fileReader); err != nil {
return err
}
}
return nil
}