1 files changed, 51 insertions, 0 deletions
diff --git a/docshelper/docs.go b/docshelper/docs.go
new file mode 100644
index 000000000..999e14d7d
--- /dev/null
+++ b/docshelper/docs.go
@@ -0,0 +1,51 @@
+// Copyright 2017-present The Hugo Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package docshelper provides some helpers for the Hugo documentation, and
+// is of limited interest for the general Hugo user.
+package docshelper
+
+type (
+	DocProviderFunc = func() DocProvider
+	DocProvider     map[string]map[string]interface{}
+)
+
+var docProviderFuncs []DocProviderFunc
+
+func AddDocProviderFunc(fn DocProviderFunc) {
+	docProviderFuncs = append(docProviderFuncs, fn)
+}
+
+func GetDocProvider() DocProvider {
+	provider := make(DocProvider)
+
+	for _, fn := range docProviderFuncs {
+		p := fn()
+		for k, v := range p {
+			if prev, found := provider[k]; !found {
+				provider[k] = v
+			} else {
+				merge(prev, v)
+			}
+		}
+	}
+
+	return provider
+}
+
+// Shallow merge
+func merge(dst, src map[string]interface{}) {
+	for k, v := range src {
+		dst[k] = v
+	}
+}