Download prebuilt binary files at npm install time

issue #904

package.json

@@ -16,8 +16,9 @@
     "scripts": {
         "dev": "cross-env npm run build && node ./scripts/qode.js dist/demo.js",
         "build": "cross-env tsc && npm run build:addon",
-        "install": "cross-env npm run setupqt && (node ./scripts/skip.js || npm run build:addon)",
+        "install": "cross-env npm run setupqt && (node ./scripts/skip.js || npm run setupbinary)",
         "setupqt": "cross-env node ./scripts/setupMiniQt.js",
+        "setupbinary": "cross-env node ./scripts/setupBinary.js",
         "build:addon": "cross-env CMAKE_BUILD_PARALLEL_LEVEL=8 cmake-js compile",
         "test": "node ./scripts/qode.js ./node_modules/jest/bin/jest -i",
         "lint:cpp": "cross-env clang-format -i --glob=src/cpp/**/*.[h,c]*",
@@ -40,7 +41,8 @@
         "memoize-one": "^5.2.1",
         "node-addon-api": "^4.0.0",
         "postcss": "^7.0.17",
-        "postcss-nodegui-autoprefixer": "0.0.7"
+        "postcss-nodegui-autoprefixer": "0.0.7",
+        "tar": "^6.0.1"
     },
     "devDependencies": {
         "@types/bindings": "^1.5.1",

scripts/setupBinary.js

@@ -0,0 +1,35 @@
+#!/usr/bin/env node
+
+const os = require('os');
+const fs = require('fs');
+const path = require('path');
+const { setupArtifact } = require('@nodegui/artifact-installer');
+const tar = require('tar');
+const SETUP_DIR = path.resolve(__dirname, '..', 'build', 'Release');
+const packageJson = require('../package');
+
+async function setupBinary() {
+    const packageVersion = packageJson.version;
+    const tarballName = `nodegui-binary-v${packageVersion}-${os.platform()}-${os.arch()}.tar.gz`;
+    const url = `https://github.com/nodegui/nodegui/releases/download/v${packageVersion}/${tarballName}`;
+
+    await setupArtifact({
+        outDir: SETUP_DIR,
+        id: 'nodegui-core',
+        displayName: `Precompiled NodeGui binary`,
+        downloadLink: url,
+        skipSetup: () => false,
+    });
+    const tarPath = path.join(SETUP_DIR, tarballName.slice(0, -3));
+    tar.extract({
+        cwd: SETUP_DIR,
+        file: tarPath,
+        sync: true,
+    });
+    fs.unlinkSync(tarPath);
+}
+
+setupBinary().catch((err) => {
+    console.error(err);
+    process.exit(1);
+});