43 lines
2.3 KiB
JavaScript
43 lines
2.3 KiB
JavaScript
"use strict";
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var _definerule = require("../utils/define-rule");
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var path = require("path");
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var url = 'https://nextjs.org/docs/messages/no-img-element';
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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 `<img>` element due to slower LCP and higher bandwidth.',
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category: 'HTML',
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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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// Get relative path of the file
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var relativePath = context.filename.replace(path.sep, '/').replace(context.cwd, '').replace(/^\//, '');
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var isAppDir = /^(src\/)?app\//.test(relativePath);
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return {
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JSXOpeningElement: function JSXOpeningElement(node) {
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var _node_parent_parent_openingElement_name, _node_parent_parent_openingElement, _node_parent_parent, _node_parent;
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if (node.name.name !== 'img') {
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return;
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}
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if (node.attributes.length === 0) {
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return;
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}
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if (((_node_parent = node.parent) === null || _node_parent === void 0 ? void 0 : (_node_parent_parent = _node_parent.parent) === null || _node_parent_parent === void 0 ? void 0 : (_node_parent_parent_openingElement = _node_parent_parent.openingElement) === null || _node_parent_parent_openingElement === void 0 ? void 0 : (_node_parent_parent_openingElement_name = _node_parent_parent_openingElement.name) === null || _node_parent_parent_openingElement_name === void 0 ? void 0 : _node_parent_parent_openingElement_name.name) === 'picture') {
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return;
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}
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// If is metadata route files, ignore
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// e.g. opengraph-image.js, twitter-image.js, icon.js
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if (isAppDir && /\/opengraph-image|twitter-image|icon\.\w+$/.test(relativePath)) return;
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context.report({
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node: node,
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message: "Using `<img>` could result in slower LCP and higher bandwidth. Consider using `<Image />` from `next/image` or a custom image loader to automatically optimize images. This may incur additional usage or cost from your provider. 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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