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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 glob
import (
"path"
"path/filepath"
"strings"
"sync"
"github.com/gobwas/glob"
"github.com/gobwas/glob/syntax"
)
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
}
func NormalizePath(p string) string {
return strings.Trim(filepath.ToSlash(strings.ToLower(p)), "/.")
}
// ResolveRootDir takes a normalized path on the form "assets/**.json" and
// determines any root dir, i.e. any start path without any wildcards.
func ResolveRootDir(p string) string {
parts := strings.Split(path.Dir(p), "/")
var roots []string
for _, part := range parts {
isSpecial := false
for i := 0; i < len(part); i++ {
if syntax.Special(part[i]) {
isSpecial = true
break
}
}
if isSpecial {
break
}
roots = append(roots, part)
}
if len(roots) == 0 {
return ""
}
return strings.Join(roots, "/")
}
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