Adding upstream version 1.34.4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

migrations/utils.go

@@ -0,0 +1,37 @@
+package migrations
+
+import (
+	"fmt"
+)
+
+type pluginTOMLStruct map[string]map[string][]interface{}
+
+func CreateTOMLStruct(category, name string) pluginTOMLStruct {
+	return map[string]map[string][]interface{}{
+		category: {
+			name: make([]interface{}, 0),
+		},
+	}
+}
+
+func (p *pluginTOMLStruct) Add(category, name string, plugin interface{}) {
+	cfg := map[string]map[string][]interface{}(*p)
+	cfg[category][name] = append(cfg[category][name], plugin)
+}
+
+func AsStringSlice(raw interface{}) ([]string, error) {
+	rawList, ok := raw.([]interface{})
+	if !ok {
+		return nil, fmt.Errorf("unexpected type : %T", raw)
+	}
+
+	converted := make([]string, 0, len(rawList))
+	for _, rawElement := range rawList {
+		el, ok := rawElement.(string)
+		if !ok {
+			return nil, fmt.Errorf("unexpected type for list element: %T", rawElement)
+		}
+		converted = append(converted, el)
+	}
+	return converted, nil
+}