Unable to uncompress zip file

[philbinj]

The following code panics for my file:

import (
	"fmt"
	"io"
	"log"
	"os"

	"github.com/bodgit/sevenzip"
)

func main() {
	// Open a zip archive for reading.
	r, err := sevenzip.OpenReader("/tmp/scene.zip")
	if err != nil {
		log.Fatal(err)
	}
	defer r.Close()

	for _, f := range r.File {
		fmt.Printf("Contents of %s:\n", f.Name)
		rc, err := f.Open()
		if err != nil {
			log.Fatal(err)
		}
		_, err = io.CopyN(os.Stdout, rc, 68)
		if err != nil {
			log.Fatal(err)
		}
		rc.Close()
		fmt.Println()
	}
}

2025/04/15 01:14:22 sevenzip: error initialising: 1 error occurred:
        * sevenzip: not a valid 7-zip file

7z is able to open it:

7z x /tmp/scene.zip

[philbinj]

A bit more info on this file:

$ file /tmp/scene.zip
/tmp/scene.zip: Zip archive data, at least v6.3 to extract, compression method=lzma

FWIW Python's zipfile can open it without issue.

[bodgit]

I don't think it's a 7-zip archive, as the error and file output suggests. The 7z utility can extract more formats than just 7-zip which is why it works.

I think you want to use archive/zip instead, however you probably need to write/add an LZMA decompressor.