woodpecker/shared/utils/strings.go

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// 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
// DeduplicateStrings deduplicate string list, empty items are dropped.
func DeduplicateStrings(src []string) []string {
m := make(map[string]struct{}, len(src))
dst := make([]string, 0, len(src))
for _, v := range src {
// Skip empty items
if len(v) == 0 {
continue
}
// Skip duplicates
if _, ok := m[v]; ok {
continue
}
m[v] = struct{}{}
dst = append(dst, v)
}
return dst
}