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38 lines
1.2 KiB
JavaScript
38 lines
1.2 KiB
JavaScript
const path = require('path')
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const eleventyImage = require('@11ty/eleventy-img')
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module.exports = (eleventyConfig) => {
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function relativeToInputPath(inputPath, relativeFilePath) {
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let split = inputPath.split('/')
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split.pop()
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return path.resolve(split.join(path.sep), relativeFilePath)
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}
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// Eleventy Image shortcode
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// https://www.11ty.dev/docs/plugins/image/
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eleventyConfig.addAsyncShortcode(
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'image',
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async function imageShortcode(src, alt, widths, sizes) {
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// Full list of formats here: https://www.11ty.dev/docs/plugins/image/#output-formats
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// Warning: Avif can be resource-intensive so take care!
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let formats = ['avif', 'webp', 'auto']
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let file = relativeToInputPath(this.page.inputPath, src)
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let metadata = await eleventyImage(file, {
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widths: widths || ['auto'],
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formats,
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outputDir: path.join(eleventyConfig.dir.output, 'img'), // Advanced usage note: `eleventyConfig.dir` works here because we’re using addPlugin.
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})
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// TODO loading=eager and fetchpriority=high
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let imageAttributes = {
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alt,
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sizes,
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loading: 'lazy',
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decoding: 'async',
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}
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return eleventyImage.generateHTML(metadata, imageAttributes)
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},
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)
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}
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