Can not find extracted file anywhere

[ijkzen]

What version of the package or command are you using?

v4.0.0-alpha.7

What are you trying to do?

I'm from v3, and now using v4.
but can not find api like v3 in v4:

archiver.Unarchive("test.tar.gz", "test")

so I write code following using v4:

func Unzip(src string, dest string) error {
	if exist, _ := initial.IsFileExist(dest); !exist {
		os.MkdirAll(dest, os.ModePerm)
	}

	supportFormat := []string{
		"rar",
		"zip",
		"tar",
		"gz",
		"bz2",
		"7z",
	}

	var isSupported = false
	for _, format := range supportFormat {
		if strings.HasSuffix(src, format) {
			isSupported = true
			break
		}
	}

	if !isSupported {
		return fmt.Errorf("%s is not supported", src)
	} else {
		reader, err := os.Open(src)
		if err != nil {
			return err
		}
		format, input, err := archiver.Identify(src, reader)
		if err != nil {
			return err
		} else {
			if ex, ok := format.(archiver.Extractor); ok {
				ex.Extract(context.Background(), input, nil, func(ctx context.Context, f archiver.File) error {
					initial.SugarLogger.Infof("handle %s", f.Name())
					return nil
				})
			}

			return nil
		}
	}
}

but I do not find extracted file anywhere.

What did you expect to happen, and what actually happened instead?

I want to has api like v3 in v4 to extract file easily.

How do you think this should be fixed?

fix will be better

Bonus: What do you use archiver for, and do you find it useful?

I download some subtitle archive file from network, and extract them to save database.

[mholt]

Archiver v4 doesn't write to the file system (see #311) - that's up to you, if you want to do that. Archiver v4 just gives you the streams you can use to do whatever you want with them.