mirror of
https://github.com/autc04/Retro68.git
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129 lines
2.5 KiB
Go
129 lines
2.5 KiB
Go
// Copyright 2016 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 gzip_test
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import (
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"bytes"
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"compress/gzip"
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"fmt"
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"io"
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"log"
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"os"
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"time"
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)
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func Example_writerReader() {
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var buf bytes.Buffer
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zw := gzip.NewWriter(&buf)
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// Setting the Header fields is optional.
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zw.Name = "a-new-hope.txt"
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zw.Comment = "an epic space opera by George Lucas"
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zw.ModTime = time.Date(1977, time.May, 25, 0, 0, 0, 0, time.UTC)
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_, err := zw.Write([]byte("A long time ago in a galaxy far, far away..."))
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if err != nil {
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log.Fatal(err)
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}
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if err := zw.Close(); err != nil {
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log.Fatal(err)
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}
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zr, err := gzip.NewReader(&buf)
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if err != nil {
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log.Fatal(err)
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}
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fmt.Printf("Name: %s\nComment: %s\nModTime: %s\n\n", zr.Name, zr.Comment, zr.ModTime.UTC())
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if _, err := io.Copy(os.Stdout, zr); err != nil {
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log.Fatal(err)
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}
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if err := zr.Close(); err != nil {
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log.Fatal(err)
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}
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// Output:
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// Name: a-new-hope.txt
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// Comment: an epic space opera by George Lucas
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// ModTime: 1977-05-25 00:00:00 +0000 UTC
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//
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// A long time ago in a galaxy far, far away...
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}
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func ExampleReader_Multistream() {
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var buf bytes.Buffer
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zw := gzip.NewWriter(&buf)
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var files = []struct {
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name string
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comment string
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modTime time.Time
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data string
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}{
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{"file-1.txt", "file-header-1", time.Date(2006, time.February, 1, 3, 4, 5, 0, time.UTC), "Hello Gophers - 1"},
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{"file-2.txt", "file-header-2", time.Date(2007, time.March, 2, 4, 5, 6, 1, time.UTC), "Hello Gophers - 2"},
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}
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for _, file := range files {
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zw.Name = file.name
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zw.Comment = file.comment
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zw.ModTime = file.modTime
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if _, err := zw.Write([]byte(file.data)); err != nil {
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log.Fatal(err)
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}
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if err := zw.Close(); err != nil {
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log.Fatal(err)
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}
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zw.Reset(&buf)
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}
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zr, err := gzip.NewReader(&buf)
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if err != nil {
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log.Fatal(err)
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}
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for {
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zr.Multistream(false)
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fmt.Printf("Name: %s\nComment: %s\nModTime: %s\n\n", zr.Name, zr.Comment, zr.ModTime.UTC())
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if _, err := io.Copy(os.Stdout, zr); err != nil {
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log.Fatal(err)
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}
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fmt.Print("\n\n")
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err = zr.Reset(&buf)
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if err == io.EOF {
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break
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}
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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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if err := zr.Close(); err != nil {
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log.Fatal(err)
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}
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// Output:
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// Name: file-1.txt
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// Comment: file-header-1
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// ModTime: 2006-02-01 03:04:05 +0000 UTC
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//
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// Hello Gophers - 1
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//
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// Name: file-2.txt
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// Comment: file-header-2
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// ModTime: 2007-03-02 04:05:06 +0000 UTC
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//
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// Hello Gophers - 2
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}
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