mirror of https://github.com/gohugoio/hugo.git
89 lines
2.4 KiB
Go
89 lines
2.4 KiB
Go
// Copyright 2019 The Hugo Authors. All rights reserved.
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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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// 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 htesting
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import (
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"math/rand"
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"runtime"
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"strings"
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"time"
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"github.com/spf13/afero"
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)
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// CreateTempDir creates a temp dir in the given filesystem and
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// returns the dirnam and a func that removes it when done.
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func CreateTempDir(fs afero.Fs, prefix string) (string, func(), error) {
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tempDir, err := afero.TempDir(fs, "", prefix)
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if err != nil {
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return "", nil, err
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}
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_, isOsFs := fs.(*afero.OsFs)
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if isOsFs && runtime.GOOS == "darwin" && !strings.HasPrefix(tempDir, "/private") {
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// To get the entry folder in line with the rest. This its a little bit
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// mysterious, but so be it.
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tempDir = "/private" + tempDir
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}
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return tempDir, func() { fs.RemoveAll(tempDir) }, nil
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}
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// BailOut panics with a stack trace after the given duration. Useful for
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// hanging tests.
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func BailOut(after time.Duration) {
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time.AfterFunc(after, func() {
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buf := make([]byte, 1<<16)
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runtime.Stack(buf, true)
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panic(string(buf))
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})
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}
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var rnd = rand.New(rand.NewSource(time.Now().UnixNano()))
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func RandIntn(n int) int {
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return rnd.Intn(n)
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}
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// DiffStringSlices returns the difference between two string slices.
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// Useful in tests.
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// See:
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// http://stackoverflow.com/questions/19374219/how-to-find-the-difference-between-two-slices-of-strings-in-golang
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func DiffStringSlices(slice1 []string, slice2 []string) []string {
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diffStr := []string{}
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m := map[string]int{}
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for _, s1Val := range slice1 {
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m[s1Val] = 1
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}
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for _, s2Val := range slice2 {
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m[s2Val] = m[s2Val] + 1
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}
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for mKey, mVal := range m {
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if mVal == 1 {
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diffStr = append(diffStr, mKey)
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}
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}
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return diffStr
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}
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// DiffStrings splits the strings into fields and runs it into DiffStringSlices.
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// Useful for tests.
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func DiffStrings(s1, s2 string) []string {
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return DiffStringSlices(strings.Fields(s1), strings.Fields(s2))
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}
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