/
glob.go
48 lines (39 loc) · 1.07 KB
/
glob.go
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// Copyright 2019 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 internal
import (
"strings"
"sync"
"github.com/gobwas/glob"
)
var (
globCache = make(map[string]glob.Glob)
globMu sync.RWMutex
)
func GetGlob(pattern string) (glob.Glob, error) {
var g glob.Glob
globMu.RLock()
g, found := globCache[pattern]
globMu.RUnlock()
if !found {
var err error
g, err = glob.Compile(strings.ToLower(pattern), '/')
if err != nil {
return nil, err
}
globMu.Lock()
globCache[pattern] = g
globMu.Unlock()
}
return g, nil
}