When permalink is used in md, the corresponding folder is not generated in Linux environment packaging

[lxiiang]

I dynamically set the permalink of each md in extendPageData method. The corresponding folder is not generated after packaging in Linux environment, but it is OK in windows environment

mycode
extendPageData($page) {
const {
_filePath,
regularPath
path,
} = $page;
if (!$page.frontmatter.permalink) {
const pathList = String(_filePath).split("\");
const length = pathList.length;
const folderName = pathList[length - 2] || "";
let fileName = pathList[length - 1].split(".")[0];
fileName = fileName.indexOf("-") >= 0 ? fileName.split("-")[1] : fileName;
const title = ${folderName}/${fileName};
let englishTitle = getEnglishName(title);
// 生成 permalink
$page.frontmatter.permalink = /${englishTitle};
$page.frontmatter.sidebarDepth = 0;
$page.title = fileName;
}
},