47 lines
1.9 KiB
JavaScript
47 lines
1.9 KiB
JavaScript
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"use strict";
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var _definerule = require("../utils/define-rule");
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var url = "https://nextjs.org/docs/messages/no-title-in-document-head";
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module.exports = (0, _definerule.defineRule)({
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meta: {
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docs: {
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description: "Prevent usage of `<title>` with `Head` component from `next/document`.",
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recommended: true,
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url: url
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},
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type: "problem",
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schema: []
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},
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create: function create(context) {
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var headFromNextDocument = false;
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return {
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ImportDeclaration: function ImportDeclaration(node) {
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if (node.source.value === "next/document") {
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if (node.specifiers.some(function(param) {
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var local = param.local;
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return local.name === "Head";
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})) {
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headFromNextDocument = true;
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}
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}
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},
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JSXElement: function JSXElement(node) {
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if (!headFromNextDocument) {
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return;
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}
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if (node.openingElement && node.openingElement.name && node.openingElement.name.name !== "Head") {
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return;
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}
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var titleTag = node.children.find(function(child) {
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return child.openingElement && child.openingElement.name && child.openingElement.name.type === "JSXIdentifier" && child.openingElement.name.name === "title";
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});
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if (titleTag) {
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context.report({
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node: titleTag,
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message: "Do not use `<title>` element with `<Head />` component from `next/document`. Titles should defined at the page-level using `<Head />` from `next/head` instead. See: ".concat(url)
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});
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}
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}
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};
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}
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});
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