github.com/keybase/client/go@v0.0.0-20240309051027-028f7c731f8b/kbfs/libdokan/archive_reltime_file.go (about)

     1  // Copyright 2018 Keybase Inc. All rights reserved.
     2  // Use of this source code is governed by a BSD
     3  // license that can be found in the LICENSE file.
     4  
     5  package libdokan
     6  
     7  import (
     8  	"time"
     9  
    10  	"github.com/keybase/client/go/kbfs/libfs"
    11  	"github.com/keybase/client/go/kbfs/tlfhandle"
    12  	"golang.org/x/net/context"
    13  )
    14  
    15  // NewArchiveRelTimeFile returns a special read file that contains a
    16  // by-revision directory name that corresponds to the given relative
    17  // time string for the given folder.
    18  func NewArchiveRelTimeFile(
    19  	fs *FS, handle *tlfhandle.Handle, filename string) *SpecialReadFile {
    20  	return &SpecialReadFile{
    21  		read: func(ctx context.Context) ([]byte, time.Time, error) {
    22  			data, isRel, err := libfs.FileDataFromRelativeTimeString(
    23  				ctx, fs.config, handle, filename)
    24  			if err != nil {
    25  				return nil, time.Time{}, err
    26  			}
    27  			if !isRel {
    28  				panic("ArchiveRelTimeFile should only be used with " +
    29  					"reltime file names")
    30  			}
    31  			return data, time.Time{}, nil
    32  		},
    33  		fs: fs,
    34  	}
    35  }