Zenstack deleted all my code projects

[james-tindal]

Description
I ran this
npx zenstack generate --schema schema/main.zmodel --output ..
It deleted everything in the directory above the current directory.

Expected behavior
I didn't expect it delete all my files.

It should check the output directory does not include the whole project before deleting it.

[thejoecode]

Could do a check similar to what Prisma does: https://github.com/prisma/prisma/blob/main/packages/client/src/generation/generateClient.ts#L772

Prisma passes the generated name to ensure it is the generated package.

If this route sounds good I could create a pull request.

packages\sdk\src\utils.ts

export function ensureEmptyDir(dir: string) {
    if (!fs.existsSync(dir)) {
        fs.mkdirSync(dir, { recursive: true });
        return;
    }

    const stats = fs.statSync(dir);
    if (stats.isDirectory()) {
        // *** If directory has files and we find the generated package ***
        // *** Then it is safe to delete recursively ***
        if (fs.readdirSync(dir).length !== 0 && require(`${dir}/package.json`).name?.startsWith(".zenstack")) {
            fs.rmSync(dir, { recursive: true });
            fs.mkdirSync(dir, { recursive: true });
        } else {
            throw new Error(`Path "${dir}" already exists and contains files that were not generated by zenstack`);
        }
    } else {
        throw new Error(`Path "${dir}" already exists and is not a directory`);
    }
}