CODEWITHSUNDEEP
zipgo
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Reputation: 9720

Zip a byte array in Go

I am trying to take a chunk of bytes and compress them using the archive/zip package in Go. However, I can't understand it at all. Are there any examples of how it could be done and is there any explanation of that cryptic package?

Upvotes: 17

Views: 13264

Answers (1)

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Reputation: 9720

Thanks to jamessan I did find the example (which doesn't exactly catch your eye).

Here is what I come up with as the result:

func (this *Zipnik) zipData() {

    // Create a buffer to write our archive to.
    fmt.Println("we are in the zipData function")
    buf := new(bytes.Buffer)

    // Create a new zip archive.
    zipWriter := 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 {
    zipFile, err := zipWriter.Create(file.Name)
        if err != nil {
            fmt.Println(err)
        }
        _, err = zipFile.Write([]byte(file.Body))  
        if err != nil {
            fmt.Println(err)
        }
    }

    // Make sure to check the error on Close.
    err := zipWriter.Close()
    if err != nil {
        fmt.Println(err)
    }

    //write the zipped file to the disk
    ioutil.WriteFile("Hello.zip", buf.Bytes(), 0777)    

}

I hope you find it useful :)

Upvotes: 31

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