83 lines
1.9 KiB
Go
83 lines
1.9 KiB
Go
// Copyright 2023 Woodpecker Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package utils
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// MergeSlices return a new slice that combines all values of input slices
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// TODO: once https://github.com/golang/go/pull/61817 got merged, we should switch to it
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func MergeSlices[T any](slices ...[]T) []T {
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sl := 0
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for i := range slices {
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sl += len(slices[i])
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}
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result := make([]T, sl)
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cp := 0
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for _, s := range slices {
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if sLen := len(s); sLen != 0 {
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copy(result[cp:], s)
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cp += sLen
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}
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}
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return result
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}
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// EqualSliceValues compare two slices if they have equal values independent of how they are sorted.
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func EqualSliceValues[E comparable](s1, s2 []E) bool {
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if len(s1) != len(s2) {
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return false
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}
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m1 := sliceToCountMap(s1)
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m2 := sliceToCountMap(s2)
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for k, v := range m1 {
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if m2[k] != v {
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return false
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}
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}
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return true
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}
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func sliceToCountMap[E comparable](list []E) map[E]int {
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m := make(map[E]int)
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for i := range list {
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m[list[i]]++
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}
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return m
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}
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// SliceToBoolMap is a helper function to convert a string slice to a map.
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func SliceToBoolMap(s []string) map[string]bool {
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v := map[string]bool{}
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for _, ss := range s {
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if ss == "" {
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continue
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}
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v[ss] = true
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}
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return v
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}
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// StringSliceDeleteEmpty removes empty strings from a string slice.
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func StringSliceDeleteEmpty(s []string) []string {
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r := make([]string, 0)
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for _, str := range s {
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if str != "" {
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r = append(r, str)
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}
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}
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return r
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}
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