@stephansama/vite-iconify-svgmap/dist/svelte/integration.mjs

Vite plugin for generating iconify svg sprite maps in memory

import { a as getState, i as NAME_REGEX, n as iconifySvgmap, o as name, r as writeSprites } from "../src-CsllISxW.mjs";
import fs from "node:fs";
import path from "node:path";
//#region src/svelte.ts
const EMPTY_SPRITE = `<svg xmlns="http://www.w3.org/2000/svg" style="display:none"></svg>`;
const JSON_EXTENSION_REGEX = /\.json$/;
/**
* Vite plugins for sveltekit. add after `sveltekit()`:
*
* ```js
* plugins: [sveltekit(), iconifySvgmap()];
* ```
*
* Sveltekit prerenders in a worker thread during its server build's
* `writeBundle` and runs the adapter in `closeBundle`:
*
* - When the client build is written, an empty placeholder sprite is added for
*   every installed icon pack so the prerender crawler does not fail on `<use
*   href>` links to sprites that do not exist yet
* - After prerendering the real sprites replace the placeholders (unused ones are
*   removed), before the adapter copies the client output
*/
function iconifySvgmapSvelteKit(options = {}) {
	const state = getState();
	return [iconifySvgmap(options), {
		apply: "build",
		name: `${name}:sveltekit`,
		writeBundle: {
			async handler(outputOptions) {
				if (!outputOptions.dir) return;
				if (!Boolean(this.environment?.config.build.ssr)) {
					await writePlaceholders(outputOptions.dir);
					return;
				}
				const clientDirectory = path.resolve(outputOptions.dir, "..", "client");
				const written = new Set(await writeSprites(clientDirectory));
				for (const placeholder of state.placeholders) if (!written.has(placeholder)) await fs.promises.rm(placeholder, { force: true });
				state.placeholders.clear();
				if (written.size > 0) this.info(`wrote ${written.size} svg sprite(s)`);
			},
			order: "post",
			sequential: true
		}
	}];
	async function writePlaceholders(clientDirectory) {
		const spriteDirectory = path.join(clientDirectory, state.spriteDir);
		await fs.promises.mkdir(spriteDirectory, { recursive: true });
		for (const pack of listInstalledPacks(state.root)) {
			const filename = path.join(spriteDirectory, `${pack}.svg`);
			if (fs.existsSync(filename)) continue;
			await fs.promises.writeFile(filename, EMPTY_SPRITE);
			state.placeholders.add(filename);
		}
	}
}
/** Icon packs resolvable from `root`, following node's module resolution */
function listInstalledPacks(root) {
	const packs = /* @__PURE__ */ new Set();
	let directory = path.resolve(root);
	while (true) {
		const modules = path.join(directory, "node_modules");
		for (const pack of readDirectory(path.join(modules, "@iconify-json"))) if (NAME_REGEX.test(pack)) packs.add(pack);
		for (const file of readDirectory(path.join(modules, "@iconify", "json", "json"))) {
			const pack = file.replace(JSON_EXTENSION_REGEX, "");
			if (NAME_REGEX.test(pack)) packs.add(pack);
		}
		const parent = path.dirname(directory);
		if (parent === directory) return packs;
		directory = parent;
	}
}
function readDirectory(directory) {
	try {
		return fs.readdirSync(directory);
	} catch {
		return [];
	}
}
//#endregion
export { iconifySvgmapSvelteKit as default };