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