Add Vite support

package.json

@@ -8,9 +8,13 @@
     "fetch-assets": "ts-node fetch_assets/src/main.ts",
     "test-screenshots": "ts-node test/screenshot.ts",
     "start": "parcel serve",
+    "start:vite": "vite preview",
     "build": "parcel build --public-url '.'",
+    "build:vite": "vite build",
     "postbuild": "workbox generateSW",
+    "postbuild:vite": "workbox generateSW",
     "fullbuild": "yarn run fetch-assets && yarn run build",
+    "fullbuild:vite": "yarn run fetch-assets && yarn run build:vite",
     "lint": "eslint src fetch_assets test",
     "fmt": "prettier --write --list-different .",
     "typecheck": "tsc --noEmit",
@@ -37,6 +41,7 @@
     "@types/react": "^18.2.7",
     "@types/react-dom": "^18.2.4",
     "@types/sharp": "^0.31.0",
+    "@vitejs/plugin-react": "~4.3.4",
     "assert": "^2.0.0",
     "crypto-browserify": "^3.12.0",
     "eslint": "^9.12.0",
@@ -59,6 +64,7 @@
     "typescript-eslint": "^8.10.0",
     "url": "^0.11.0",
     "util": "^0.12.3",
+    "vite": "6.0.3",
     "vm-browserify": "^1.1.2",
     "workbox-cli": "^7.0.0"
   },

src/js/character_icons_vite.ts

@@ -0,0 +1,27 @@
+/**
+ * character_icon.tsx contains a glob import that only works in Parcel.
+ * vite.config.ts replaces that Parcel glob import by loading this file instead.
+ * This file contains a glob import that only works in Vite.
+ */
+
+// Return a map of the form { "Icon_<id>": <url> }.
+const images = Object.fromEntries(
+  Object.entries(
+    // `import.meta.glob` is a Vite-specific feature.
+    // @ts-expect-error TODO: Can use "vite/client" types after removing conflicting definition in `assets/globals.d.ts`
+    import.meta.glob("../../assets/icons/*.webp", {
+      eager: true,
+      query: "?url",
+      import: "default",
+    }),
+  )
+    .map(([path, module]) => {
+      const iconName = path.match(/(Icon_.*)\.webp$/);
+      if (!iconName || !iconName[1]) {
+        return null;
+      }
+      return [iconName[1], module];
+    })
+    .filter((entry) => entry !== null),
+);
+export default images;

src/js/components/character_icon.tsx

@@ -1,4 +1,7 @@
+// This is a Parcel glob import: https://parceljs.org/features/dependency-resolution/#glob-specifiers
+// vite.config.ts replaces this import by loading `character_icons_vite.ts` instead.
 import images from "../../../assets/icons/*.webp";
+
 import { css } from "@emotion/react";
 import { characterIdWithoutNumber, getCharacter } from "botc/roles";
 

src/public/icons

@@ -0,0 +1 @@
+../../icons

src/public/manifest.webmanifest

@@ -0,0 +1 @@
+../manifest.webmanifest

src/public/screenshots

@@ -0,0 +1 @@
+../../screenshots

src/public/scripts.json

@@ -0,0 +1 @@
+../../assets/static/scripts.json

vite.config.ts

@@ -0,0 +1,68 @@
+import fs from "fs";
+import path from "path";
+
+import react from "@vitejs/plugin-react";
+import posthtml from "posthtml";
+import type {
+  AliasOptions,
+  IndexHtmlTransformHook,
+  IndexHtmlTransformResult,
+} from "vite";
+import { defineConfig } from "vite";
+
+const alias: AliasOptions = [
+  // `.parcelrc` uses the `parcel-resolver-ts-base-url` plugin so imports can be relative to `./src/js` instead of the current file.
+  // The equivalent in Vite is to declare an alias for every file and directory in `./src/js`.
+  ...fs.readdirSync("./src/js").map((filename) => {
+    const name = filename.replace(/\.(j|t)sx?$/, "");
+    return {
+      find: name,
+      replacement: path.resolve(__dirname, "src", "js", name),
+    };
+  }),
+  {
+    // Parcel imports our character icons using a Parcel-specific glob syntax.
+    // Redirect to character_icons_vite.ts, where we'll use a Vite-specific glob syntax instead.
+    find: /^.*\/assets\/icons\/\*\.webp$/,
+    replacement: path.resolve(__dirname, "src", "js", "character_icons_vite"),
+  },
+];
+
+// We run PostHTML on our `index.html` and `script.html` files to process an `<include>` tag.
+function postHtmlPlugin() {
+  return {
+    name: "posthtml-transform",
+    async transformIndexHtml(html: string): Promise<IndexHtmlTransformResult> {
+      const postHtmlResult = await posthtml()
+        .use(require("posthtml-include")())
+        .process(html);
+      return postHtmlResult.html;
+    },
+  };
+}
+
+export default defineConfig({
+  assetsInclude: ["icons/touch-icon.png"],
+  build: {
+    emptyOutDir: true,
+    outDir: "../dist",
+    rollupOptions: {
+      input: {
+        main: path.resolve(__dirname, "src", "index.html"),
+        script: path.resolve(__dirname, "src", "script.html"),
+      },
+    },
+  },
+  plugins: [
+    react({
+      babel: {
+        babelrc: true,
+      },
+    }),
+    postHtmlPlugin(),
+  ],
+  resolve: {
+    alias,
+  },
+  root: "src",
+});