func ExampleWriter_RegisterCompressor() {
// Override the default Deflate compressor with a higher compression
// level.
// Create a buffer to write our archive to.
buf := new(bytes.Buffer)
// Create a new zip archive.
w := zip.NewWriter(buf)
var fw *flate.Writer
// Register the deflator.
w.RegisterCompressor(zip.Deflate, func(out io.Writer) (io.WriteCloser, error) {
var err error
if fw == nil {
// Creating a flate compressor for every file is
// expensive, create one and reuse it.
fw, err = flate.NewWriter(out, flate.BestCompression)
} else {
fw.Reset(out)
}
return fw, err
})
// Proceed to add files to w.
}
func ExampleWriter() {
// Create a buffer to write our archive to.
buf := new(bytes.Buffer)
// Create a new zip archive.
w := zip.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 licence.\nWrite more examples."},
}
for _, file := range files {
f, err := w.Create(file.Name)
if err != nil {
log.Fatal(err)
}
_, err = f.Write([]byte(file.Body))
if err != nil {
log.Fatal(err)
}
}
// Make sure to check the error on Close.
err := w.Close()
if err != nil {
log.Fatal(err)
}
}