33 lines
993 B
JavaScript
33 lines
993 B
JavaScript
const visit = require('unist-util-visit')
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const sizeOf = require('image-size')
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const fs = require('fs')
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module.exports = (options) => (tree) => {
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visit(
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tree,
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// only visit p tags that contain an img element
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(node) => node.type === 'paragraph' && node.children.some((n) => n.type === 'image'),
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(node) => {
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const imageNode = node.children.find((n) => n.type === 'image')
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// only local files
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if (fs.existsSync(`${process.cwd()}/public${imageNode.url}`)) {
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const dimensions = sizeOf(`${process.cwd()}/public${imageNode.url}`)
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// Convert original node to next/image
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imageNode.type = 'jsx'
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imageNode.value = `<Image
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alt={\`${imageNode.alt}\`}
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src={\`${imageNode.url}\`}
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width={${dimensions.width}}
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height={${dimensions.height}}
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/>`
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// Change node type from p to div to avoid nesting error
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node.type = 'div'
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node.children = [imageNode]
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}
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}
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)
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}
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