feat(dnf): fix dnf5 addRepo compatibility, expand test coverage

- Fix addRepo to use 'config-manager addrepo --from-repofile=' for dnf5
  (dnf4 uses 'config-manager --add-repo')
- Add fedora:latest (dnf5) to containertest matrix
- Add IsDNF5 detection integration test
- Add RepoManager and NameNormalizer integration test coverage
- Rename containertest fedora entry to fedora-dnf4 for clarity

dnf/capabilities.go

@@ -90,7 +90,7 @@ func (d *DNF) ListRepos(ctx context.Context) ([]snack.Repository, error) {
 func (d *DNF) AddRepo(ctx context.Context, repo snack.Repository) error {
 	d.Lock()
 	defer d.Unlock()
-	return addRepo(ctx, repo)
+	return addRepo(ctx, repo, d.v5)
 }
 
 // RemoveRepo removes a configured repository.

dnf/capabilities_linux.go

@@ -171,8 +171,14 @@ func listRepos(ctx context.Context, v5 bool) ([]snack.Repository, error) {
 	return parseRepoList(out), nil
 }
 
-func addRepo(ctx context.Context, repo snack.Repository) error {
-	_, err := run(ctx, []string{"config-manager", "--add-repo", repo.URL}, snack.Options{})
+func addRepo(ctx context.Context, repo snack.Repository, v5 bool) error {
+	var args []string
+	if v5 {
+		args = []string{"config-manager", "addrepo", "--from-repofile=" + repo.URL}
+	} else {
+		args = []string{"config-manager", "--add-repo", repo.URL}
+	}
+	_, err := run(ctx, args, snack.Options{})
 	return err
 }
 

dnf/capabilities_other.go

@@ -56,7 +56,7 @@ func listRepos(_ context.Context, _ bool) ([]snack.Repository, error) {
 	return nil, snack.ErrUnsupportedPlatform
 }
 
-func addRepo(_ context.Context, _ snack.Repository) error {
+func addRepo(_ context.Context, _ snack.Repository, _ bool) error {
 	return snack.ErrUnsupportedPlatform
 }
 

dnf/dnf_integration_test.go

@@ -12,6 +12,14 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
+func TestIntegration_DNF_Detection(t *testing.T) {
+	d := dnf.New()
+	if !d.Available() {
+		t.Skip("dnf not available")
+	}
+	t.Logf("IsDNF5: %v", d.IsDNF5())
+}
+
 func TestIntegration_DNF(t *testing.T) {
 	var mgr snack.Manager = dnf.New()
 	if !mgr.Available() {
@@ -106,5 +114,17 @@ func TestIntegration_DNF(t *testing.T) {
 			require.NoError(t, err)
 			_ = groups
 		}
+
+		if rm, ok := mgr.(snack.RepoManager); ok {
+			repos, err := rm.ListRepos(ctx)
+			require.NoError(t, err)
+			require.NotEmpty(t, repos, "should have at least one repo")
+			t.Logf("repos: %d", len(repos))
+		}
+
+		if nn, ok := mgr.(snack.NameNormalizer); ok {
+			got := nn.NormalizeName("curl.x86_64")
+			assert.Equal(t, "curl", got)
+		}
 	})
 }

integration_test.go

@@ -57,11 +57,17 @@ var distros = []distroTest{
 		packages: "./pacman/ ./detect/",
 	},
 	{
-		name:     "fedora-dnf",
+		name:     "fedora-dnf4",
 		image:    "fedora:39",
 		setup:    installGo("dnf install -y tree sudo wget"),
 		packages: "./dnf/ ./rpm/ ./detect/",
 	},
+	{
+		name:     "fedora-dnf5",
+		image:    "fedora:latest",
+		setup:    installGo("dnf install -y tree sudo wget"),
+		packages: "./dnf/ ./rpm/ ./detect/",
+	},
 }
 
 func TestContainers(t *testing.T) {