Support ChangedFiles for Github & Gitlab PRs and Gitlab pushes (#697)

shared/utils/strings.go

@@ -0,0 +1,32 @@
+// Copyright 2022 Woodpecker Authors
+//
+// 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 utils
+
+// DedupStrings deduplicate string list, empty items are dropped
+func DedupStrings(list []string) []string {
+	m := make(map[string]struct{}, len(list))
+
+	for i := range list {
+		if s := list[i]; len(s) > 0 {
+			m[list[i]] = struct{}{}
+		}
+	}
+
+	newList := make([]string, 0, len(m))
+	for k := range m {
+		newList = append(newList, k)
+	}
+	return newList
+}