Introduce service accounts and bootstrap tokens (#22)

internal/structpath/structpath.go

@@ -0,0 +1,31 @@
+package structpath
+
+import (
+	"reflect"
+	"strings"
+)
+
+func Lookup(target interface{}, path []string) (s string, ok bool) {
+	currentValue := reflect.ValueOf(target)
+
+	for _, pathElement := range path {
+		pathElement := pathElement
+
+		field := currentValue.FieldByNameFunc(func(fieldName string) bool {
+			return strings.EqualFold(fieldName, pathElement)
+		})
+
+		if !field.IsValid() {
+			return "", false
+		}
+
+		currentValue = field
+	}
+
+	result, ok := currentValue.Interface().(string)
+	if !ok {
+		return "", false
+	}
+
+	return result, true
+}

internal/structpath/structpath_test.go

@@ -0,0 +1,33 @@
+package structpath_test
+
+import (
+	"github.com/cirruslabs/orchard/internal/structpath"
+	"github.com/stretchr/testify/require"
+	"testing"
+)
+
+func TestStructPath(t *testing.T) {
+	target := struct {
+		Name    string
+		Aliases []string
+	}{
+		Name:    "Test",
+		Aliases: []string{"Check-up", "Evaluation"},
+	}
+
+	t.Run("normal scenario", func(t *testing.T) {
+		result, ok := structpath.Lookup(target, []string{"name"})
+		require.True(t, ok)
+		require.Equal(t, "Test", result)
+	})
+
+	t.Run("non-existent field", func(t *testing.T) {
+		_, ok := structpath.Lookup(target, []string{"non-existent"})
+		require.False(t, ok)
+	})
+
+	t.Run("non-string field", func(t *testing.T) {
+		_, ok := structpath.Lookup(target, []string{"aliases"})
+		require.False(t, ok)
+	})
+}