Enable goconst & interfacer linters

deb/deb.go

@@ -14,12 +14,18 @@ import (
 	"github.com/mkrautz/goar"
 	"github.com/pkg/errors"
 
-	"github.com/smira/aptly/aptly"
 	"github.com/smira/aptly/utils"
 	"github.com/smira/go-xz"
 	"github.com/smira/lzma"
 )
 
+// Source kinds
+const (
+	SourceSnapshot   = "snapshot"
+	SourceLocalRepo  = "local"
+	SourceRemoteRepo = "repo"
+)
+
 // GetControlFileFromDeb reads control file from deb package
 func GetControlFileFromDeb(packageFile string) (Stanza, error) {
 	file, err := os.Open(packageFile)
@@ -107,7 +113,7 @@ func GetControlFileFromDsc(dscFile string, verifier utils.Verifier) (Stanza, err
 }
 
 // GetContentsFromDeb returns list of files installed by .deb package
-func GetContentsFromDeb(file aptly.ReadSeekerCloser, packageFile string) ([]string, error) {
+func GetContentsFromDeb(file io.Reader, packageFile string) ([]string, error) {
 	library := ar.NewReader(file)
 	for {
 		header, err := library.Next()