Gallery repository (#663)

Signed-off-by: mudler <mudler@localai.io>

pkg/utils/untar.go

@@ -0,0 +1,56 @@
+package utils
+
+import (
+	"fmt"
+
+	"github.com/mholt/archiver/v3"
+)
+
+func IsArchive(file string) bool {
+	uaIface, err := archiver.ByExtension(file)
+	if err != nil {
+		return false
+	}
+
+	_, ok := uaIface.(archiver.Unarchiver)
+	return ok
+}
+
+func ExtractArchive(archive, dst string) error {
+	uaIface, err := archiver.ByExtension(archive)
+	if err != nil {
+		return err
+	}
+
+	un, ok := uaIface.(archiver.Unarchiver)
+	if !ok {
+		return fmt.Errorf("format specified by source filename is not an archive format: %s (%T)", archive, uaIface)
+	}
+
+	mytar := &archiver.Tar{
+		OverwriteExisting:      true,
+		MkdirAll:               true,
+		ImplicitTopLevelFolder: false,
+		ContinueOnError:        true,
+	}
+
+	switch v := uaIface.(type) {
+	case *archiver.Tar:
+		uaIface = mytar
+	case *archiver.TarBrotli:
+		v.Tar = mytar
+	case *archiver.TarBz2:
+		v.Tar = mytar
+	case *archiver.TarGz:
+		v.Tar = mytar
+	case *archiver.TarLz4:
+		v.Tar = mytar
+	case *archiver.TarSz:
+		v.Tar = mytar
+	case *archiver.TarXz:
+		v.Tar = mytar
+	case *archiver.TarZstd:
+		v.Tar = mytar
+	}
+	return un.Unarchive(archive, dst)
+}