Copy preserve and redirect symbol link

index.js

const { link, copy, ensureDir, stat, readdir, realpath, symlink } = require('fs-extra');
const { relative, join } = require('path');

(async () => {
    await myCopy(
        String.raw`X:\Temp\editor-ci-build-test\editor-3d\app`,
        // String.raw`X:\Temp\6`,
        String.raw`X:\Temp\editor-ci-build-test\editor-3d\.publish\CocosCreator\resources\app`,
    );
})();

async function myCopy(source, dest) {
    const root = source;
    const dstRoot = dest;
    const symlinkItems = [];

    await copyDir(source, dest);

    await Promise.all(symlinkItems.map(async ([source, target]) => {
        await symlink(target, source, 'junction');
    }));

    async function copyFile(source, dest) {
        await copy(source, dest);
    }

    async function copyDir(source, dest) {
        await ensureDir(dest);
        const dirEntries = await readdir(source, { withFileTypes: true });
        await Promise.all(dirEntries.map(async (dirEntry) => {
            const sourceFileName = join(source, dirEntry.name);
            const destFileName = join(dest, dirEntry.name);
            if (dirEntry.isFile()) {
                await copyFile(sourceFileName, destFileName);
            } else if (dirEntry.isDirectory()) {
                await copyDir(sourceFileName, destFileName);
            } else if (dirEntry.isSymbolicLink()) {
                await copySymbolink(sourceFileName, destFileName);
            }
        }));
    }

    async function copySymbolink(source, dest) {
        const real = await realpath(source);
        const relativeReal = relative(root, real);
        if (relativeReal.startsWith('..')) {
            return;
        }
        const realDest = join(dstRoot, relativeReal);
        symlinkItems.push([dest, realDest]);
    }
}