Also detect RPM databases in NDB format (Fixes #183)

RPM databases in the native DB format rather than the traditional
Berkeley DB format are stored as different filenames, so detect
those as well.

analyzer/pkg/rpm/rpm.go

@@ -23,7 +23,9 @@ func init() {
 const version = 1
 
 var requiredFiles = []string{
+	"usr/lib/sysimage/rpm/Packages.db",
 	"usr/lib/sysimage/rpm/Packages",
+	"var/lib/rpm/Packages.db",
 	"var/lib/rpm/Packages",
 }
 var errUnexpectedNameFormat = xerrors.New("unexpected name format")

go.mod

@@ -24,7 +24,7 @@ require (
 	github.com/hashicorp/hcl v1.0.0
 	github.com/knqyf263/go-apk-version v0.0.0-20200609155635-041fdbb8563f
 	github.com/knqyf263/go-deb-version v0.0.0-20190517075300-09fca494f03d
-	github.com/knqyf263/go-rpmdb v0.0.0-20210911072402-73bd0ce46c49
+	github.com/knqyf263/go-rpmdb v0.0.0-20211216113947-1369b2ee40b7
 	github.com/knqyf263/nested v0.0.1
 	github.com/kylelemons/godebug v1.1.0
 	github.com/mitchellh/mapstructure v1.4.2

go.sum

@@ -867,8 +867,8 @@ github.com/knqyf263/go-apk-version v0.0.0-20200609155635-041fdbb8563f h1:GvCU5GX
 github.com/knqyf263/go-apk-version v0.0.0-20200609155635-041fdbb8563f/go.mod h1:q59u9px8b7UTj0nIjEjvmTWekazka6xIt6Uogz5Dm+8=
 github.com/knqyf263/go-deb-version v0.0.0-20190517075300-09fca494f03d h1:X4cedH4Kn3JPupAwwWuo4AzYp16P0OyLO9d7OnMZc/c=
 github.com/knqyf263/go-deb-version v0.0.0-20190517075300-09fca494f03d/go.mod h1:o8sgWoz3JADecfc/cTYD92/Et1yMqMy0utV1z+VaZao=
-github.com/knqyf263/go-rpmdb v0.0.0-20210911072402-73bd0ce46c49 h1:QazJZdFn/ApQh8OHepQiCKXGZ0QE08Bu8BnS10aHgvE=
-github.com/knqyf263/go-rpmdb v0.0.0-20210911072402-73bd0ce46c49/go.mod h1:RDPNeIkU5NWXtt0OMEoILyxwUC/DyXeRtK295wpqSi0=
+github.com/knqyf263/go-rpmdb v0.0.0-20211216113947-1369b2ee40b7 h1:xVowqxH8FU6XAG1YIIjeWiUlbDh9ZQZWpk5pz6IcxEU=
+github.com/knqyf263/go-rpmdb v0.0.0-20211216113947-1369b2ee40b7/go.mod h1:RDPNeIkU5NWXtt0OMEoILyxwUC/DyXeRtK295wpqSi0=
 github.com/knqyf263/nested v0.0.1 h1:Sv26CegUMhjt19zqbBKntjwESdxe5hxVPSk0+AKjdUc=
 github.com/knqyf263/nested v0.0.1/go.mod h1:zwhsIhMkBg90DTOJQvxPkKIypEHPYkgWHs4gybdlUmk=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=

test/integration/library_test.go

@@ -86,6 +86,14 @@ var testCases = []testCase{
 		imageFile:       "testdata/fixtures/opensuse-leap-151.tar.gz",
 		wantOS:          types.OS{Name: "15.1", Family: "opensuse.leap"},
 	},
+	{
+                # from registry.suse.com/suse/sle15:15.3.17.8.16
+		name:            "happy path, suse 15.3 (NDB)",
+		imageName:       "suse/sle15:15.3.17.8.16",
+		remoteImageName: "knqyf263/suse-sle15:15.3.17.8.16",
+		imageFile:       "testdata/fixtures/suse-15.3_ndb.tar.gz",
+		wantOS:          types.OS{Name: "15.3", Family: "suse linux enterprise server"},
+	},
 	{
 		name:                "happy path, vulnimage with lock files",
 		imageName:           "knqyf263/vuln-image:1.2.3",