Phase 1 PWA: prayer times, qibla, quran, hijri, tasbih, 99 names

node_modules/@sveltejs/vite-plugin-svelte/src/utils/optimizer.js

@@ -0,0 +1,53 @@
+import { promises as fs } from 'node:fs';
+import path from 'node:path';
+
+// List of options that changes the prebundling result
+/** @type {(keyof import('../types/options.d.ts').ResolvedOptions)[]} */
+const PREBUNDLE_SENSITIVE_OPTIONS = [
+	'compilerOptions',
+	'configFile',
+	'experimental',
+	'extensions',
+	'ignorePluginPreprocessors',
+	'preprocess'
+];
+
+/**
+ * @param {string} cacheDir
+ * @param {import('../types/options.d.ts').ResolvedOptions} options
+ * @returns {Promise<boolean>} Whether the Svelte metadata has changed
+ */
+export async function saveSvelteMetadata(cacheDir, options) {
+	const svelteMetadata = generateSvelteMetadata(options);
+	const svelteMetadataPath = path.resolve(cacheDir, '_svelte_metadata.json');
+
+	const currentSvelteMetadata = JSON.stringify(svelteMetadata, (_, value) => {
+		// Handle preprocessors
+		return typeof value === 'function' ? value.toString() : value;
+	});
+
+	/** @type {string | undefined} */
+	let existingSvelteMetadata;
+	try {
+		existingSvelteMetadata = await fs.readFile(svelteMetadataPath, 'utf8');
+	} catch {
+		// ignore
+	}
+
+	await fs.mkdir(cacheDir, { recursive: true });
+	await fs.writeFile(svelteMetadataPath, currentSvelteMetadata);
+	return currentSvelteMetadata !== existingSvelteMetadata;
+}
+
+/**
+ * @param {import('../types/options.d.ts').ResolvedOptions} options
+ * @returns {Partial<import('../types/options.d.ts').ResolvedOptions>}
+ */
+function generateSvelteMetadata(options) {
+	/** @type {Record<string, any>} */
+	const metadata = {};
+	for (const key of PREBUNDLE_SENSITIVE_OPTIONS) {
+		metadata[key] = options[key];
+	}
+	return metadata;
+}