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no-path-concat.js 1.64 KiB
/**
 * @fileoverview Disallow string concatenation when using __dirname and __filename
 * @author Nicholas C. Zakas
 */
"use strict";
//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------
module.exports = {
    meta: {
        deprecated: true,
        replacedBy: [],
        type: "suggestion",
        docs: {
            description: "disallow string concatenation with `__dirname` and `__filename`",
            category: "Node.js and CommonJS",
            recommended: false,
            url: "https://eslint.org/docs/rules/no-path-concat"
        schema: [],
        messages: {
            usePathFunctions: "Use path.join() or path.resolve() instead of + to create paths."
    create(context) {
        const MATCHER = /^__(?:dir|file)name$/u;
        //--------------------------------------------------------------------------
        // Public
        //--------------------------------------------------------------------------
        return {
            BinaryExpression(node) {
                const left = node.left,
                    right = node.right;
                if (node.operator === "+" &&
                        ((left.type === "Identifier" && MATCHER.test(left.name)) ||
                        (right.type === "Identifier" && MATCHER.test(right.name)))
                ) {
                    context.report({
                        node,
                        messageId: "usePathFunctions"
                    });