Function writeFile

http/resource.go:296–327

(afs afero.Fs, dst string, in io.Reader, fileMode, dirMode fs.FileMode)

}

func writeFile(afs afero.Fs, dst string, in io.Reader, fileMode, dirMode fs.FileMode) (os.FileInfo, error) {
	dir, _ := path.Split(dst)
	err := afs.MkdirAll(dir, dirMode)
	if err != nil {
		return nil, err
	}

	file, err := afs.OpenFile(dst, os.O_RDWR|os.O_CREATE|os.O_TRUNC, fileMode)
	if err != nil {
		return nil, err
	}
	defer file.Close()

	_, err = io.Copy(file, in)
	if err != nil {
		return nil, err
	}

	// Sync the file to ensure all data is written to storage.
	// to prevent file corruption.
	if err := file.Sync(); err != nil {
		return nil, err
	}

	// Gets the info about the file.
	info, err := file.Stat()
	if err != nil {
		return nil, err
	}

	return info, nil
}

func delThumbs(ctx context.Context, fileCache FileCache, file *files.FileInfo) error {
	for _, previewSizeName := range PreviewSizeNames() {