hugo glob 源码
hugo glob 代码
文件路径：/hugofs/glob.go
// 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 hugofs
import (
"errors"
"path/filepath"
"strings"
"github.com/gohugoio/hugo/hugofs/glob"
"github.com/spf13/afero"
)
// Glob walks the fs and passes all matches to the handle func.
// The handle func can return true to signal a stop.
func Glob(fs afero.Fs, pattern string, handle func(fi FileMetaInfo) (bool, error)) error {
pattern = glob.NormalizePathNoLower(pattern)
if pattern == "" {
return nil
}
root := glob.ResolveRootDir(pattern)
pattern = strings.ToLower(pattern)
g, err := glob.GetGlob(pattern)
if err != nil {
return err
}
hasSuperAsterisk := strings.Contains(pattern, "**")
levels := strings.Count(pattern, "/")
// Signals that we're done.
done := errors.New("done")
wfn := func(p string, info FileMetaInfo, err error) error {
p = glob.NormalizePath(p)
if info.IsDir() {
if !hasSuperAsterisk {
// Avoid walking to the bottom if we can avoid it.
if p != "" && strings.Count(p, "/") >= levels {
return filepath.SkipDir
}
}
return nil
}
if g.Match(p) {
d, err := handle(info)
if err != nil {
return err
}
if d {
return done
}
}
return nil
}
w := NewWalkway(WalkwayConfig{
Root: root,
Fs: fs,
WalkFn: wfn,
})
err = w.Walk()
if err != done {
return err
}
return nil
}
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