include brotli'd tarball in mac and win packages

packages/cheerp-darwin-x64/.gitignore

@@ -0,0 +1 @@
+cheerp

packages/cheerp-darwin-x64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@leaningtech/cheerp-darwin-x64",
-  "version": "0.0.0-1692034395",
+  "version": "3.0.0-rc.2",
   "license": "Apache-2.0 WITH LLVM-exception",
   "main": "index.mjs",
   "types": "index.d.ts",
@@ -13,5 +13,8 @@
   ],
   "scripts": {
     "postinstall": "node postinstall.mjs"
+  },
+  "dependencies": {
+    "tar-fs": "^3.0.4"
   }
 }

packages/cheerp-darwin-x64/postinstall.mjs

@@ -1,24 +1,11 @@
-import { $ } from "execa";
-import { writeFile, stat, constants } from "fs/promises";
+import { brotliDecompress } from "zlib";
+import { promisify } from "util";
+import { readFile, rmdir } from "fs/promises";
+import { Readable } from "stream";
+import { extract } from "tar-fs";
 
-const dest = ".";
-const url =
-  "https://output.circle-artifacts.com/output/job/38375ec3-45be-4ac9-8662-8f2c777ab578/artifacts/0/~/project/packages/cheerp-macosx-1692034395.tar.bz2";
-const tarPath = "cheerp.tar.bz2";
+rmdir("cheerp", { recursive: true }).catch(() => {});
 
-await $`rm -rf cheerp`
-
-console.log(`downloading ${url}`)
-const response = await fetch(url);
-await writeFile(tarPath, new Uint8Array(await response.arrayBuffer()));
-
-console.log(`extracting ${tarPath}`)
-await $`tar -xjf ${tarPath} -C ${dest}`;
-
-// Check that the binary is executable
-const { mode } = await stat(`cheerp/bin/clang++`)
-if (mode & constants.S_IXUSR) {
-  console.log("clang++ ok!")
-} else {
-  process.exit(1)
-}
+let buffer = await readFile("cheerp.tar.br");
+buffer = await promisify(brotliDecompress)(buffer);
+await new Promise(resolve => Readable.from(buffer).pipe(extract(".")).once("close", resolve));

packages/cheerp-win32-x64/.gitignore

@@ -0,0 +1 @@
+cheerp

packages/cheerp-win32-x64/index.d.ts

@@ -0,0 +1 @@
+export const path: string;

packages/cheerp-win32-x64/index.mjs

@@ -0,0 +1,4 @@
+import { URL } from "url";
+import { resolve } from "path";
+
+export const path = resolve(new URL(".", import.meta.url).pathname, "cheerp");

packages/cheerp-win32-x64/package.json

@@ -0,0 +1,19 @@
+{
+  "name": "@leaningtech/cheerp-win32-x64",
+  "version": "3.0.0-rc.2",
+  "license": "Apache-2.0 WITH LLVM-exception",
+  "main": "index.mjs",
+  "types": "index.d.ts",
+  "os": [
+    "win32"
+  ],
+  "cpu": [
+    "x64"
+  ],
+  "scripts": {
+    "postinstall": "node postinstall.mjs"
+  },
+  "dependencies": {
+    "tar-fs": "^3.0.4"
+  }
+}