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94 lines
2.0 KiB
94 lines
2.0 KiB
4 months ago
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// Copyright 2012 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package zip_test
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import (
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"archive/zip"
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"bytes"
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"compress/flate"
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"fmt"
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"io"
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"log"
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"os"
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)
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func ExampleWriter() {
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// Create a buffer to write our archive to.
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buf := new(bytes.Buffer)
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// Create a new zip archive.
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w := zip.NewWriter(buf)
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// Add some files to the archive.
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var files = []struct {
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Name, Body string
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}{
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{"readme.txt", "This archive contains some text files."},
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{"gopher.txt", "Gopher names:\nGeorge\nGeoffrey\nGonzo"},
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{"todo.txt", "Get animal handling licence.\nWrite more examples."},
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}
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for _, file := range files {
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f, err := w.Create(file.Name)
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if err != nil {
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log.Fatal(err)
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}
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_, err = f.Write([]byte(file.Body))
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if err != nil {
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log.Fatal(err)
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}
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}
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// Make sure to check the error on Close.
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err := w.Close()
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if err != nil {
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log.Fatal(err)
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}
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}
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func ExampleReader() {
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// Open a zip archive for reading.
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r, err := zip.OpenReader("testdata/readme.zip")
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if err != nil {
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log.Fatal(err)
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}
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defer r.Close()
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// Iterate through the files in the archive,
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// printing some of their contents.
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for _, f := range r.File {
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fmt.Printf("Contents of %s:\n", f.Name)
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rc, err := f.Open()
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if err != nil {
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log.Fatal(err)
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}
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_, err = io.CopyN(os.Stdout, rc, 68)
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if err != nil {
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log.Fatal(err)
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}
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rc.Close()
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fmt.Println()
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}
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// Output:
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// Contents of README:
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// This is the source code repository for the Go programming language.
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}
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func ExampleWriter_RegisterCompressor() {
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// Override the default Deflate compressor with a higher compression level.
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// Create a buffer to write our archive to.
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buf := new(bytes.Buffer)
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// Create a new zip archive.
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w := zip.NewWriter(buf)
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// Register a custom Deflate compressor.
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w.RegisterCompressor(zip.Deflate, func(out io.Writer) (io.WriteCloser, error) {
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return flate.NewWriter(out, flate.BestCompression)
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})
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// Proceed to add files to w.
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}
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