File size: 1,527 Bytes
1e92f2d |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 |
import { defineRule } from '../utils/define-rule'
const url = 'https://nextjs.org/docs/messages/no-title-in-document-head'
export = defineRule({
meta: {
docs: {
description:
'Prevent usage of `<title>` with `Head` component from `next/document`.',
recommended: true,
url,
},
type: 'problem',
schema: [],
},
create(context) {
let headFromNextDocument = false
return {
ImportDeclaration(node) {
if (node.source.value === 'next/document') {
if (node.specifiers.some(({ local }) => local.name === 'Head')) {
headFromNextDocument = true
}
}
},
JSXElement(node) {
if (!headFromNextDocument) {
return
}
if (
node.openingElement &&
node.openingElement.name &&
node.openingElement.name.name !== 'Head'
) {
return
}
const titleTag = node.children.find(
(child) =>
child.openingElement &&
child.openingElement.name &&
child.openingElement.name.type === 'JSXIdentifier' &&
child.openingElement.name.name === 'title'
)
if (titleTag) {
context.report({
node: titleTag,
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: ${url}`,
})
}
},
}
},
})
|