mirror of
https://github.com/gohugoio/hugo.git
synced 2024-12-25 20:23:05 +00:00
91 lines
2.6 KiB
Go
91 lines
2.6 KiB
Go
// Copyright 2018 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 (
|
|
"os"
|
|
|
|
"github.com/spf13/afero"
|
|
)
|
|
|
|
// RealFilenameInfo is a thin wrapper around os.FileInfo adding the real filename.
|
|
type RealFilenameInfo interface {
|
|
os.FileInfo
|
|
|
|
// This is the real filename to the file in the underlying filesystem.
|
|
RealFilename() string
|
|
}
|
|
|
|
type realFilenameInfo struct {
|
|
os.FileInfo
|
|
realFilename string
|
|
}
|
|
|
|
func (f *realFilenameInfo) RealFilename() string {
|
|
return f.realFilename
|
|
}
|
|
|
|
// NewBasePathRealFilenameFs returns a new BasePathRealFilenameFs instance
|
|
// using base.
|
|
func NewBasePathRealFilenameFs(base *afero.BasePathFs) *BasePathRealFilenameFs {
|
|
return &BasePathRealFilenameFs{BasePathFs: base}
|
|
}
|
|
|
|
// BasePathRealFilenameFs is a thin wrapper around afero.BasePathFs that
|
|
// provides the real filename in Stat and LstatIfPossible.
|
|
type BasePathRealFilenameFs struct {
|
|
*afero.BasePathFs
|
|
}
|
|
|
|
// Stat returns the os.FileInfo structure describing a given file. If there is
|
|
// an error, it will be of type *os.PathError.
|
|
func (b *BasePathRealFilenameFs) Stat(name string) (os.FileInfo, error) {
|
|
fi, err := b.BasePathFs.Stat(name)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if _, ok := fi.(RealFilenameInfo); ok {
|
|
return fi, nil
|
|
}
|
|
|
|
filename, err := b.RealPath(name)
|
|
if err != nil {
|
|
return nil, &os.PathError{Op: "stat", Path: name, Err: err}
|
|
}
|
|
|
|
return &realFilenameInfo{FileInfo: fi, realFilename: filename}, nil
|
|
}
|
|
|
|
// LstatIfPossible returns the os.FileInfo structure describing a given file.
|
|
// It attempts to use Lstat if supported or defers to the os. In addition to
|
|
// the FileInfo, a boolean is returned telling whether Lstat was called.
|
|
func (b *BasePathRealFilenameFs) LstatIfPossible(name string) (os.FileInfo, bool, error) {
|
|
|
|
fi, ok, err := b.BasePathFs.LstatIfPossible(name)
|
|
if err != nil {
|
|
return nil, false, err
|
|
}
|
|
|
|
if _, ok := fi.(RealFilenameInfo); ok {
|
|
return fi, ok, nil
|
|
}
|
|
|
|
filename, err := b.RealPath(name)
|
|
if err != nil {
|
|
return nil, false, &os.PathError{Op: "lstat", Path: name, Err: err}
|
|
}
|
|
|
|
return &realFilenameInfo{FileInfo: fi, realFilename: filename}, ok, nil
|
|
}
|