webui: Static build output improvements (#21667)

* refactor: Build improvements

* chore: Formatting + package lock update

tools/server/public/index.html

@@ -1,5 +1,5 @@
 <!--
-  This is a single file build of the frontend.
+  This is a static build of the frontend.
   It is automatically generated by the build process.
   Do not edit this file directly.
   To make changes, refer to the "Web UI" section in the README.
@@ -18,7 +18,7 @@
 		<div style="display: contents">
 			<script>
 				{
-					__sveltekit_1ao0o9h = {
+					__sveltekit__ = {
 						base: new URL('.', location).pathname.slice(0, -1)
 					};
 

tools/server/webui/package-lock.json

@@ -1,11 +1,11 @@
 {
-	"name": "webui",
+	"name": "llama-server-webui",
 	"version": "1.0.0",
 	"lockfileVersion": 3,
 	"requires": true,
 	"packages": {
 		"": {
-			"name": "webui",
+			"name": "llama-server-webui",
 			"version": "1.0.0",
 			"dependencies": {
 				"@modelcontextprotocol/sdk": "^1.25.1",

tools/server/webui/package.json

@@ -1,5 +1,5 @@
 {
-	"name": "webui",
+	"name": "llama-server-webui",
 	"private": true,
 	"version": "1.0.0",
 	"type": "module",

tools/server/webui/scripts/vite-plugin-llama-cpp-build.ts

@@ -0,0 +1,84 @@
+import { readFileSync, writeFileSync, existsSync, readdirSync, copyFileSync } from 'fs';
+import { resolve } from 'path';
+import type { Plugin } from 'vite';
+
+const GUIDE_FOR_FRONTEND = `
+<!--
+  This is a static build of the frontend.
+  It is automatically generated by the build process.
+  Do not edit this file directly.
+  To make changes, refer to the "Web UI" section in the README.
+-->
+`.trim();
+
+export function llamaCppBuildPlugin(): Plugin {
+	return {
+		name: 'llamacpp:build',
+		apply: 'build',
+		closeBundle() {
+			// Ensure the SvelteKit adapter has finished writing to ../public
+			setTimeout(() => {
+				try {
+					const indexPath = resolve('../public/index.html');
+					if (!existsSync(indexPath)) return;
+
+					let content = readFileSync(indexPath, 'utf-8');
+
+					const faviconPath = resolve('static/favicon.svg');
+
+					if (existsSync(faviconPath)) {
+						const faviconContent = readFileSync(faviconPath, 'utf-8');
+						const faviconBase64 = Buffer.from(faviconContent).toString('base64');
+						const faviconDataUrl = `data:image/svg+xml;base64,${faviconBase64}`;
+
+						content = content.replace(/href="[^"]*favicon\.svg"/g, `href="${faviconDataUrl}"`);
+
+						console.log('✓ Inlined favicon.svg as base64 data URL');
+					}
+
+					content = content.replace(/\r/g, '');
+					content = GUIDE_FOR_FRONTEND + '\n' + content;
+					content = content.replace(/\/_app\/immutable\/bundle\.[^"]+\.js/g, './bundle.js');
+					content = content.replace(
+						/\/_app\/immutable\/assets\/bundle\.[^"]+\.css/g,
+						'./bundle.css'
+					);
+					content = content.replace(/__sveltekit_[a-z0-9]+/g, '__sveltekit__');
+
+					writeFileSync(indexPath, content, 'utf-8');
+					console.log('✓ Updated index.html');
+
+					// Copy bundle.*.js -> ../public/bundle.js
+					const immutableDir = resolve('../public/_app/immutable');
+					const bundleDir = resolve('../public/_app/immutable/assets');
+
+					if (existsSync(immutableDir)) {
+						const jsFiles = readdirSync(immutableDir).filter((f) => f.match(/^bundle\..+\.js$/));
+
+						if (jsFiles.length > 0) {
+							copyFileSync(resolve(immutableDir, jsFiles[0]), resolve('../public/bundle.js'));
+							// Normalize __sveltekit_<hash> to __sveltekit__ in bundle.js
+							const bundleJsPath = resolve('../public/bundle.js');
+							let bundleJs = readFileSync(bundleJsPath, 'utf-8');
+							bundleJs = bundleJs.replace(/__sveltekit_[a-z0-9]+/g, '__sveltekit__');
+							writeFileSync(bundleJsPath, bundleJs, 'utf-8');
+							console.log(`✓ Copied ${jsFiles[0]} -> bundle.js`);
+						}
+					}
+
+					// Copy bundle.*.css -> ../public/bundle.css
+					if (existsSync(bundleDir)) {
+						const cssFiles = readdirSync(bundleDir).filter((f) => f.match(/^bundle\..+\.css$/));
+
+						if (cssFiles.length > 0) {
+							copyFileSync(resolve(bundleDir, cssFiles[0]), resolve('../public/bundle.css'));
+							console.log(`✓ Copied ${cssFiles[0]} -> bundle.css`);
+						}
+					}
+				} catch (error) {
+					console.error('Failed to update index.html:', error);
+				}
+			}, 100);
+		}
+	};
+}

tools/server/webui/src/lib/components/app/chat/ChatForm/ChatFormHelperText.svelte

@@ -22,7 +22,8 @@
 			</p>
 		{:else}
 			<p class="text-xs text-muted-foreground">
-				Press <kbd class="rounded bg-muted px-1 py-0.5 font-mono text-xs">{modKey} + Enter</kbd> to send,
+				Press <kbd class="rounded bg-muted px-1 py-0.5 font-mono text-xs">{modKey} + Enter</kbd> to
+				send,
 				<kbd class="rounded bg-muted px-1 py-0.5 font-mono text-xs">Enter</kbd> for new line
 			</p>
 		{/if}

tools/server/webui/svelte.config.js

@@ -25,6 +25,9 @@ const config = {
 		},
 		alias: {
 			$styles: 'src/styles'
+		},
+		version: {
+			name: 'llama-server-webui'
 		}
 	},
 

tools/server/webui/vite.config.ts

@@ -1,108 +1,33 @@
 import tailwindcss from '@tailwindcss/vite';
 import { sveltekit } from '@sveltejs/kit/vite';
-import { readFileSync, writeFileSync, existsSync, readdirSync, copyFileSync } from 'fs';
 import { dirname, resolve } from 'path';
 import { fileURLToPath } from 'url';
 
 import { defineConfig, searchForWorkspaceRoot } from 'vite';
 import devtoolsJson from 'vite-plugin-devtools-json';
 import { storybookTest } from '@storybook/addon-vitest/vitest-plugin';
+import { llamaCppBuildPlugin } from './scripts/vite-plugin-llama-cpp-build';
 
 const __dirname = dirname(fileURLToPath(import.meta.url));
 
-const GUIDE_FOR_FRONTEND = `
-<!--
-  This is a single file build of the frontend.
-  It is automatically generated by the build process.
-  Do not edit this file directly.
-  To make changes, refer to the "Web UI" section in the README.
--->
-`.trim();
-
-/**
- * the maximum size of an embedded asset in bytes,
- * e.g. maximum size of embedded font (see node_modules/katex/dist/fonts/*.woff2)
- */
-const MAX_ASSET_SIZE = 32000;
-
-/** public/index.html minified flag */
-const ENABLE_JS_MINIFICATION = true;
-
-function llamaCppBuildPlugin() {
-	return {
-		name: 'llamacpp:build',
-		apply: 'build' as const,
-		closeBundle() {
-			// Ensure the SvelteKit adapter has finished writing to ../public
-			setTimeout(() => {
-				try {
-					const indexPath = resolve('../public/index.html');
-
-					if (!existsSync(indexPath)) {
-						return;
-					}
-
-					let content = readFileSync(indexPath, 'utf-8');
-
-					const faviconPath = resolve('static/favicon.svg');
-					if (existsSync(faviconPath)) {
-						const faviconContent = readFileSync(faviconPath, 'utf-8');
-						const faviconBase64 = Buffer.from(faviconContent).toString('base64');
-						const faviconDataUrl = `data:image/svg+xml;base64,${faviconBase64}`;
-
-						content = content.replace(/href="[^"]*favicon\.svg"/g, `href="${faviconDataUrl}"`);
-
-						console.log('✓ Inlined favicon.svg as base64 data URL');
-					}
-
-					content = content.replace(/\r/g, '');
-					content = GUIDE_FOR_FRONTEND + '\n' + content;
-					content = content.replace(/\/_app\/immutable\/bundle\.[^"]+\.js/g, './bundle.js');
-					content = content.replace(
-						/\/_app\/immutable\/assets\/bundle\.[^"]+\.css/g,
-						'./bundle.css'
-					);
-
-					writeFileSync(indexPath, content, 'utf-8');
-					console.log('✓ Updated index.html');
-
-					// Copy bundle.*.js -> ../public/bundle.js
-					const immutableDir = resolve('../public/_app/immutable');
-					const bundleDir = resolve('../public/_app/immutable/assets');
-					if (existsSync(immutableDir)) {
-						const jsFiles = readdirSync(immutableDir).filter((f) => f.match(/^bundle\..+\.js$/));
-						if (jsFiles.length > 0) {
-							copyFileSync(resolve(immutableDir, jsFiles[0]), resolve('../public/bundle.js'));
-							console.log(`✓ Copied ${jsFiles[0]} -> bundle.js`);
-						}
-					}
-					// Copy bundle.*.css -> ../public/bundle.css
-					if (existsSync(bundleDir)) {
-						const cssFiles = readdirSync(bundleDir).filter((f) => f.match(/^bundle\..+\.css$/));
-						if (cssFiles.length > 0) {
-							copyFileSync(resolve(bundleDir, cssFiles[0]), resolve('../public/bundle.css'));
-							console.log(`✓ Copied ${cssFiles[0]} -> bundle.css`);
-						}
-					}
-				} catch (error) {
-					console.error('Failed to update index.html:', error);
-				}
-			}, 100);
-		}
-	};
-}
-
 export default defineConfig({
 	resolve: {
 		alias: {
 			'katex-fonts': resolve('node_modules/katex/dist/fonts')
 		}
 	},
+
 	build: {
-		assetsInlineLimit: MAX_ASSET_SIZE,
+		assetsInlineLimit: 32000,
 		chunkSizeWarningLimit: 3072,
-		minify: ENABLE_JS_MINIFICATION
+		minify: true
 	},
+
+	esbuild: {
+		lineLimit: 500,
+		minifyIdentifiers: false
+	},
+
 	css: {
 		preprocessorOptions: {
 			scss: {
@@ -114,7 +39,9 @@ export default defineConfig({
 			}
 		}
 	},
+
 	plugins: [tailwindcss(), sveltekit(), devtoolsJson(), llamaCppBuildPlugin()],
+
 	test: {
 		projects: [
 			{
@@ -131,6 +58,7 @@ export default defineConfig({
 					setupFiles: ['./vitest-setup-client.ts']
 				}
 			},
+
 			{
 				extends: './vite.config.ts',
 				test: {
@@ -139,6 +67,7 @@ export default defineConfig({
 					include: ['tests/unit/**/*.{test,spec}.{js,ts}']
 				}
 			},
+
 			{
 				extends: './vite.config.ts',
 				test: {