sevenzip: unsupported compression algorithm about archiver HOT 4 CLOSED

What is your code? How can I reproduce the issue?

from archiver.

package main
import (
"context"
"fmt"
"io"
"github.com/mholt/archiver/v4"
)
func main() {
ArchiverTest("public.7z")
return
}
func ArchiverTest(path string) {
f, _ := os.Open(path)
format, readStream, err := archiver.Identify(path, f)
if err != nil {
return
}
extractor, ok := format.(archiver.Extractor)
if !ok {
return
}
switch extractor.(type) {
case archiver.Zip:
extractor = archiver.Zip{TextEncoding: "gbk"}
fmt.Println("archiver.Zip")
case archiver.SevenZip:
extractor = archiver.SevenZip{}
fmt.Println("archiver.SevenZip")
case archiver.Rar:
extractor = archiver.Rar{}
fmt.Println("archiver.Rar")
default:
fmt.Println("unsupported compression algorithm")
return
}
ctx := context.Background()
handler := func(ctx context.Context, f archiver.File) error {
filename := f.Name()
newfile, err := os.Create(filename)
if err != nil {
panic(err)
}
defer newfile.Close()
old, err := f.Open()
if err != nil {
panic(err)
}
defer old.Close()
_, err = io.Copy(newfile, old)
if err != nil {
panic(err)
}
fmt.Printf("extracted %s \n", f.Name())
return nil
}
err = extractor.Extract(ctx, readStream, nil, handler)
if err != nil {
return
}
}

from archiver.

What is your code? How can I reproduce the issue?

this is the test code,zip and rar is ok,but 7z it return panic: sevenzip: unsupported compression algorithm

from archiver.

I just ran your code and I didn't get any errors. Change fmt.Println("unsupported compression algorithm") to fmt.Printf("unsupported format: %#v", extractor) and see what you get.

But anyway this does not appear to be a bug in archiver, so closing.

from archiver.