golang-lib/web/file/fs/file.go

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2021-07-26 17:48:20 +02:00
package fs
import (
"fmt"
"io/fs"
"os"
"path"
"github.com/google/uuid"
)
// File is a file handle with its associated ID.
type File struct {
*os.File
fs *FS
id uuid.UUID
}
func (f File) Stat() (fs.FileInfo, error) {
fi := FileInfo{id: f.id}
var err error
fi.FileInfo, err = f.File.Stat()
if err != nil {
return nil, fmt.Errorf("os stat: %w", err)
}
name, err := os.ReadFile(path.Join(f.fs.Root, f.id.String(), "name"))
if err != nil {
return nil, fmt.Errorf("reading name: %w", err)
}
fi.name = string(name)
contentType, err := os.ReadFile(path.Join(f.fs.Root, f.id.String(), "type"))
if err != nil {
return nil, fmt.Errorf("reading type: %w", err)
}
fi.contentType = string(contentType)
return fi, nil
}