build: tsdown [still wip]

packages/zod/package.json

@@ -10,9 +10,9 @@
   "keywords": ["typescript", "schema", "validation", "type", "inference"],
   "license": "MIT",
   "sideEffects": false,
-  "main": "./dist/cjs/index.js",
-  "types": "./dist/types/index.d.ts",
-  "module": "./dist/esm/index.js",
+  "main": "./dist/index.js",
+  "types": "./dist/index.d.ts",
+  "module": "./dist/index.js",
   "exports": {
     ".": {
       "import": {
@@ -82,20 +82,6 @@
     },
     "./package.json": "./package.json"
   },
-  "tshy": {
-    "exports": {
-      "./package.json": "./package.json",
-      ".": "./src/index.ts",
-      "./v3": "./src/v3/index.ts",
-      "./v4": "./src/v4/index.ts",
-      "./v4-mini": "./src/v4/mini/index.ts",
-      "./v4/core": "./src/v4/core/index.ts",
-      "./v4/locales": "./src/v4/locales/index.ts",
-      "./v4/locales/*": "./src/v4/locales/*"
-    },
-    "sourceDialects": ["@zod/source"],
-    "exclude": ["./src/**/*.test.ts"]
-  },
   "repository": {
     "type": "git",
     "url": "git+https://github.com/colinhacks/zod.git"
@@ -110,11 +96,17 @@
   },
   "scripts": {
     "clean": "rm -rf dist",
-    "build": "tsx ./build.mts",
+    "build": "tsdown",
     "postbuild": "pnpm biome check --write .",
     "test:watch": "pnpm vitest",
     "test": "pnpm vitest run",
     "bump:beta": "pnpm version \"v$(pnpm pkg get version | jq -r)-beta.$(date +%Y%m%dT%H%M%S)\"",
     "pub:beta": "pnpm bump:beta && pnpm publish --tag next --publish-branch v4 --no-git-checks --dry-run"
+  },
+  "dependencies": {
+    "tsdown": "^0.12.8"
+  },
+  "devDependencies": {
+    "tinyglobby": "^0.2.14"
   }
 }

packages/zod/tsdown.config.ts

@@ -0,0 +1,38 @@
+import { defineConfig } from "tsdown";
+import { glob } from "tinyglobby";
+
+const locales = await glob("./src/v4/locales/*.ts", {
+  cwd: import.meta.dirname,
+});
+
+// Necessary due to https://github.com/rolldown/tsdown/issues/341 for now
+const localesObject = Object.fromEntries(
+  locales.map((filename) => {
+    const localeName = filename.split("/").pop()?.replace(/\.ts$/, "");
+    return [`v4/locales/${localeName}`, `./src/v4/locales/${localeName}.ts`];
+  }),
+);
+
+export default defineConfig({
+  entry: {
+    ".": "./src/index.ts",
+    v3: "./src/v3/index.ts",
+    v4: "./src/v4/index.ts",
+    "v4/core": "./src/v4/core/index.ts",
+    "v4/locales": "./src/v4/locales/index.ts",
+    "v4-mini": "./src/v4/mini/index.ts",
+    ...localesObject,
+  },
+  // Copied from rolldown.esm.ts
+  outputOptions: {
+    preserveModules: true, // no bundling; one output per input
+    preserveModulesRoot: "src",
+    // use .mts for all emitted files
+    entryFileNames: "[name].mts",
+    chunkFileNames: "[name].mts",
+  },
+  unbundle: true,
+  // Might need https://github.com/rolldown/tsdown/issues/339 to consider
+  exports: true,
+  dts: true,
+});