build: mirror nitro and nitropack npm packages

.gitignore

@@ -77,3 +77,10 @@ test/fixture/functions
 
 .pnpm-store
 .wrangler
+
+# mirror pkg
+.mirror
+
+# Generated types
+*.d.ts
+!runtime-meta.d.ts

build.config.ts

@@ -2,6 +2,7 @@ import { defineBuildConfig } from "unbuild";
 import { resolve } from "pathe";
 import { fileURLToPath } from "node:url";
 import { normalize } from "pathe";
+import { writeFile } from "node:fs/promises";
 
 const srcDir = fileURLToPath(new URL("src", import.meta.url));
 
@@ -50,6 +51,16 @@ export default defineBuildConfig({
       ])
     ),
   },
+  hooks: {
+    async "build:prepare"(ctx) {
+      for (const subpath of subpaths) {
+        await writeFile(
+          `./${subpath}.d.ts`,
+          `export * from "./dist/${subpath}/index";`
+        );
+      }
+    },
+  },
   externals: [
     "nitropack",
     "nitropack/runtime/meta",
@@ -59,7 +70,7 @@ export default defineBuildConfig({
   ],
   rollup: {
     output: {
-      chunkFileNames(chunk) {
+      chunkFileNames(chunk: any) {
         const id = normalize(chunk.moduleIds.at(-1));
         if (id.includes("/src/cli/")) {
           return "cli/[name].mjs";

package.json

@@ -15,11 +15,11 @@
       "import": "./dist/config/index.mjs"
     },
     ".": {
-      "types": "./types.d.ts",
+      "types": "./dist/core/index.d.ts",
       "import": "./dist/core/index.mjs"
     },
     "./core": {
-      "types": "./types.d.ts",
+      "types": "./dist/core/index.d.ts",
       "import": "./dist/core/index.mjs"
     },
     "./kit": {
@@ -65,16 +65,12 @@
     "./package.json": "./package.json"
   },
   "main": "./dist/core/index.mjs",
-  "types": "./types.d.ts",
+  "types": "./dist/core/index.d.ts",
   "bin": {
     "nitro": "./dist/cli/index.mjs",
     "nitropack": "./dist/cli/index.mjs"
   },
-  "files": [
-    "dist",
-    "*.d.ts",
-    "runtime-meta.*"
-  ],
+  "files": ["dist", "*.d.ts", "runtime-meta.*"],
   "scripts": {
     "build": "pnpm gen-presets && unbuild",
     "dev": "pnpm nitro dev playground",
@@ -84,6 +80,7 @@
     "lint:fix": "eslint --cache --fix . && biome format . --write",
     "nitro": "JITI_ESM_RESOLVE=1 NODE_OPTIONS=\"--enable-source-maps\" jiti ./src/cli/index.ts",
     "prepack": "pnpm build",
+    "gen-mirror": "JITI_ESM_RESOLVE=1 pnpm jiti scripts/gen-mirror.ts",
     "gen-presets": "JITI_ESM_RESOLVE=1 pnpm jiti scripts/gen-presets.ts",
     "release": "pnpm test && pnpm build && changelogen --release && pnpm publish && git push --follow-tags",
     "stub": "unbuild --stub",
@@ -188,6 +185,7 @@
     "automd": "^0.3.7",
     "better-sqlite3": "^11.0.0",
     "changelogen": "^0.5.5",
+    "codeup": "^0.0.4",
     "edge-runtime": "^2.5.10",
     "eslint": "^9.4.0",
     "eslint-config-unjs": "0.3.2",

runtime-meta.d.ts

@@ -1,4 +1,4 @@
-export const pkgDir: string;
-export const runtimeDir: string;
-export const subpaths: string[];
-export const runtimeDependencies: string[];
+export declare const pkgDir: string;
+export declare const runtimeDir: string;
+export declare const subpaths: string[];
+export declare const runtimeDependencies: string[];

scripts/gen-mirror.ts

@@ -0,0 +1,92 @@
+import { subpaths } from "../build.config";
+import { fileURLToPath } from "mlly";
+import { PackageJson, readPackageJSON } from "pkg-types";
+import { writeFile, mkdir, rm, cp } from "node:fs/promises";
+import { join } from "pathe";
+
+const copyPkgFields = [
+  "description",
+  "keywords",
+  "repository",
+  "license",
+  "type",
+  "exports",
+  "main",
+  "types",
+  "bin",
+  "files",
+];
+
+const copyFiles = ["README.md", "LICENSE"];
+
+// 2.x: nitropack ~> nitro
+const mainPkgName = "nitropack";
+const mirrrorPkgName = "nitro";
+
+// Dirs
+const mainDir = fileURLToPath(new URL("..", import.meta.url));
+const mirrorDir = fileURLToPath(new URL("../.mirror", import.meta.url));
+
+async function main() {
+  // Init mirror dir
+  await rm(mirrorDir, { recursive: true }).catch(() => {});
+  await mkdir(mirrorDir, { recursive: true });
+
+  // Copy package.json fields
+  const mainPkg = await readPackageJSON(mainDir);
+  const mirrorPkg: PackageJson = {
+    name: mirrrorPkgName,
+    version: `0.0.0-${mainPkg.name}-${mainPkg.version}`,
+    peerDependencies: {
+      [mainPkgName]: mainPkg.version!,
+    },
+  };
+  for (const field of copyPkgFields) {
+    if (mainPkg[field]) {
+      mirrorPkg[field] = mainPkg[field];
+    }
+  }
+  await writeFile(
+    join(mirrorDir, "package.json"),
+    JSON.stringify(mirrorPkg, null, 2)
+  );
+
+  // Generate subpath re-exports
+  for (const subpath of subpaths) {
+    await mkdir(join(mirrorDir, "dist", subpath), { recursive: true });
+    await writeFile(
+      join(mirrorDir, "dist", subpath, "index.mjs"),
+      `export * from "${mainPkgName}/${subpath}";`
+    );
+    await writeFile(
+      join(mirrorDir, "dist", subpath, "index.d.ts"),
+      `export * from "${mainPkgName}/${subpath}";`
+    );
+    await writeFile(
+      join(mirrorDir, "dist", subpath, "index.d.mts"),
+      `export * from "${mainPkgName}/${subpath}";`
+    );
+    await writeFile(
+      join(mirrorDir, `${subpath}.d.ts`),
+      `export * from "./dist/${subpath}";`
+    );
+  }
+
+  // Runtime Meta
+  await writeFile(
+    join(mirrorDir, "runtime-meta.mjs"),
+    `export * from "${mainPkgName}/runtime/meta";`
+  );
+  await writeFile(
+    join(mirrorDir, "runtime-meta.d.ts"),
+    `export * from "${mainPkgName}/runtime/meta";`
+  );
+
+  // Other files
+  for (const file of copyFiles) {
+    await cp(join(mainDir, file), join(mirrorDir, file));
+  }
+}
+
+// eslint-disable-next-line unicorn/prefer-top-level-await
+main();

src/rollup/config.ts

@@ -379,6 +379,7 @@ export const plugins = [
         "#build": buildDir,
         "#nitro-internal-virtual/error-handler": nitro.options.errorHandler,
         "#internal/nitro": join(runtimeDir, "_compat"),
+        "nitro/runtime": runtimeDir,
         "nitropack/runtime": runtimeDir,
         "~": nitro.options.srcDir,
         "@/": nitro.options.srcDir,
@@ -445,6 +446,7 @@ export const plugins = [
             "~~",
             "@@/",
             "virtual:",
+            "nitro/runtime",
             "nitropack/runtime",
             dirname(nitro.options.entry),
             ...(nitro.options.experimental.wasm

test/fixture/tsconfig.json

@@ -9,26 +9,40 @@
     // (currently manually synced with top level tsconfig.json paths)
     "paths": {
       // CLI
+      "nitro/cli": ["../../src/cli"],
       "nitropack/cli": ["../../src/cli"],
       // Config
+      "nitro/config": ["../../src/config"],
       "nitropack/config": ["../../src/config"],
       // Core
-      "nitropack": ["../../src/core"],
+      "nitro/core": ["../../src/core"],
       "nitropack/core": ["../../src/core"],
+      // Core alias
+      "nitro": ["../../src/core"],
+      "nitropack": ["../../src/core"],
       // Runtime
+      "nitro/runtime": ["../../src/runtime"],
       "nitropack/runtime": ["../../src/runtime"],
-      "nitropack/runtime/meta": ["../../runtime-meta"],
+      "nitro/runtime/meta": ["./runtime-meta"],
+      "nitropack/runtime/meta": ["./runtime-meta"],
+      "nitro/runtime/*": ["../../src/runtime/*"],
       "nitropack/runtime/*": ["../../src/runtime/*"],
       // Kit
+      "nitro/kit": ["../../src/kit"],
       "nitropack/kit": ["../../src/kit"],
       // Meta
-      "nitropack/meta": ["../../src/core/meta"],
+      "nitro/meta": ["../../src/meta"],
+      "nitropack/meta": ["../../src/meta"],
       // Presets
+      "nitro/presets": ["../../src/presets"],
       "nitropack/presets": ["../../src/presets"],
+      "nitro/presets/*": ["../../src/presets/*"],
       "nitropack/presets/*": ["../../src/presets/*"],
       // Rollup
+      "nitro/rollup": ["../../src/rollup"],
       "nitropack/rollup": ["../../src/rollup"],
       // Types
+      "nitro/types": ["../../src/types"],
       "nitropack/types": ["../../src/types"],
       // Virtual files
       "#nitro-internal-virtual/*": ["../../src/types/virtual/*"],

tsconfig.json

@@ -16,26 +16,42 @@
     "noEmit": true,
     "paths": {
       // CLI
+      "nitro/cli": ["./src/cli"],
       "nitropack/cli": ["./src/cli"],
       // Config
+      "nitro/config": ["./src/config"],
       "nitropack/config": ["./src/config"],
       // Core
-      "nitropack": ["./src/core"],
+      "nitro/core": ["./src/core"],
       "nitropack/core": ["./src/core"],
+      // Core (alias)
+      "nitro": ["./src/core"],
+      "nitropack": ["./src/core"],
       // Runtime
+      "nitro/runtime": ["./src/runtime"],
       "nitropack/runtime": ["./src/runtime"],
-      "nitropack/runtime/meta": ["./runtime-meta"],
+      // Runtime subpaths
+      "nitro/runtime/*": ["./src/runtime/*"],
       "nitropack/runtime/*": ["./src/runtime/*"],
+      // Runtime meta
+      "nitro/runtime/meta": ["./runtime-meta"],
+      "nitropack/runtime/meta": ["./runtime-meta"],
       // Kit
+      "nitro/kit": ["./src/kit"],
       "nitropack/kit": ["./src/kit"],
       // Meta
+      "nitro/meta": ["./src/meta"],
       "nitropack/meta": ["./src/meta"],
       // Presets
+      "nitro/presets": ["./src/presets"],
       "nitropack/presets": ["./src/presets"],
+      "nitro/presets/*": ["./src/presets/*"],
       "nitropack/presets/*": ["./src/presets/*"],
       // Rollup
+      "nitro/rollup": ["./src/rollup"],
       "nitropack/rollup": ["./src/rollup"],
       // Types
+      "nitro/types": ["./src/types"],
       "nitropack/types": ["./src/types"],
       // Virtual files
       "#nitro-internal-virtual/*": ["./src/types/virtual/*"],
@@ -44,6 +60,6 @@
       "#internal/nitro/*": ["./src/runtime/_compat/*"]
     }
   },
-  "include": ["src", "test"],
+  "include": ["src", "test", "scripts/gen-mirror.ts"],
   "exclude": ["dist", "examples", "playground", "test/fixture"]
 }