Fix tmpfs issues, add swapping of options, etc

deb/archive/archive.go

@@ -8,19 +8,11 @@ import (
 	"github.com/blakesmith/ar"
 	"io"
 	"log"
-	"os"
 	"strings"
 )
 
-func InspectPackage(filename string) (string, error) {
-	f, err := os.Open(filename)
-
-	if err != nil {
-		return "", fmt.Errorf("error opening package file %s: %s", filename, err)
-	}
-
-	arReader := ar.NewReader(f)
-	defer f.Close()
+func InspectPackage(r io.Reader) (string, error) {
+	arReader := ar.NewReader(r)
 
 	for {
 		header, err := arReader.Next()
@@ -37,6 +29,7 @@ func InspectPackage(filename string) (string, error) {
 			return InspectPackageControl(arReader)
 		}
 	}
+
 	return "", nil
 }