eslint-plugin-esm/dist/rules/existing-file-imports.js

ESLint plugin for linting ESM (import/export syntax)

import fs from "node:fs";
import path from "node:path";
import { create, createRule, getRuleName, getSourceType } from "../common.js";
import { memoize } from "../utils.js";
export const existingFileImports = createRule({
    name: getRuleName(import.meta.url),
    message: "Only allow importing from an existing local file.",
    create: (context) => create(context, check),
});
function check(filename, source) {
    return getSourceType(source) === "local"
        ? !isExisting(path.resolve(path.dirname(filename), source))
        : false;
}
const isExisting = memoize((filepath) => {
    try {
        const stat = fs.statSync(filepath);
        return stat.isFile();
    }
    catch {
        return false;
    }
});
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