Fixed error reporting when included invalid files in include section

bundle/config/mutator/process_root_includes.go

@@ -49,6 +49,10 @@ func (m *processRootIncludes) Apply(ctx context.Context, b *bundle.Bundle) error
 			return err
 		}
 
+		if len(matches) == 0 {
+			return fmt.Errorf("%s defined in 'include' section does not match any files", entry)
+		}
+
 		// Filter matches to ones we haven't seen yet.
 		var includes []string
 		for _, match := range matches {

bundle/config/mutator/process_root_includes_test.go

@@ -108,3 +108,17 @@ func TestProcessRootIncludesRemoveDups(t *testing.T) {
 	require.NoError(t, err)
 	assert.Equal(t, []string{"a.yml"}, bundle.Config.Include)
 }
+
+func TestProcessRootIncludesNotExists(t *testing.T) {
+	bundle := &bundle.Bundle{
+		Config: config.Root{
+			Path: t.TempDir(),
+			Include: []string{
+				"notexist.yml",
+			},
+		},
+	}
+	err := mutator.ProcessRootIncludes().Apply(context.Background(), bundle)
+	require.Error(t, err)
+	assert.Contains(t, err.Error(), "notexist.yml defined in 'include' section does not match any files")
+}

bundle/config/root.go

@@ -118,7 +118,7 @@ func (r *Root) Load(path string) error {
 	}
 	err = yaml.Unmarshal(raw, r)
 	if err != nil {
-		return err
+		return fmt.Errorf("failed to load %s: %w", path, err)
 	}
 
 	r.Path = filepath.Dir(path)