Method WriteFile

snapshot/restore/shallow_fs_output.go:51–72

WriteFile implements restore.Output interface.

(ctx context.Context, relativePath string, f fs.File, _ FileWriteProgress)

// WriteFile implements restore.Output interface.
func (o *ShallowFilesystemOutput) WriteFile(ctx context.Context, relativePath string, f fs.File, _ FileWriteProgress) error {
	log(ctx).Debugf("(Shallow) WriteFile %v (%v bytes) %v, %v", filepath.Join(o.TargetPath, relativePath), f.Size(), f.Mode(), f.ModTime())

	mde, ok := f.(snapshot.HasDirEntry)
	if !ok {
		return errors.Errorf("fs object '%s' is not HasDirEntry?", f.Name())
	}

	de := mde.DirEntry()

	// Write small files directly instead of writing placeholders.
	if de.FileSize < int64(o.MinSizeForPlaceholder) {
		return o.FilesystemOutput.WriteFile(ctx, relativePath, f, nil)
	}

	placeholderpath, err := o.writeShallowEntry(ctx, relativePath, de)
	if err != nil {
		return errors.Wrap(err, "shallow WriteFile")
	}

	return o.setAttributes(placeholderpath, f, readonlyfilemode)
}

const readonlyfilemode = 0o222