Enhance gendoc for Generating Static and Dynamic Reference Configuration Files

internal/parser.go

@@ -0,0 +1,66 @@
+package main
+
+import (
+	"fmt"
+	"reflect"
+	"strings"
+
+	"github.com/traefik/paerser/parser"
+)
+
+func encodeNode(labels map[string]string, root string, node *parser.Node) {
+	for _, child := range node.Children {
+		if child.Disabled {
+			continue
+		}
+
+		var sep string
+		if child.Name[0] != '[' {
+			sep = "."
+		}
+
+		childName := root + sep + child.Name
+
+		if child.RawValue != nil {
+			encodeRawValue(labels, childName, child.RawValue)
+			continue
+		}
+
+		if strings.Contains(child.Tag.Get(parser.TagLabel), parser.TagLabelAllowEmpty) {
+			labels[childName] = "true"
+		}
+
+		if len(child.Children) > 0 {
+			encodeNode(labels, childName, child)
+		} else if len(child.Name) > 0 {
+			labels[childName] = child.Value
+		}
+	}
+}
+
+func encodeRawValue(labels map[string]string, root string, rawValue interface{}) {
+	if rawValue == nil {
+		return
+	}
+
+	tValue := reflect.TypeOf(rawValue)
+
+	if tValue.Kind() == reflect.Map && tValue.Elem().Kind() == reflect.Interface {
+		r := reflect.ValueOf(rawValue).
+			Convert(reflect.TypeOf((map[string]interface{})(nil))).
+			Interface().(map[string]interface{})
+
+		for k, v := range r {
+			switch tv := v.(type) {
+			case string:
+				labels[root+"."+k] = tv
+			case []interface{}:
+				for i, e := range tv {
+					encodeRawValue(labels, fmt.Sprintf("%s.%s[%d]", root, k, i), e)
+				}
+			default:
+				encodeRawValue(labels, root+"."+k, v)
+			}
+		}
+	}
+}