add detecting platform

npm/getBinary.js

@@ -1,8 +1,22 @@
 const Binary = require('./binary');
+
+const os = require('os');
+
+function getPlatform() {
+    const type = os.type();
+    const arch = os.arch();
+
+    if (type === 'Windows_NT' && arch === 'x64') return 'win';
+    if (type === 'Linux' && arch === 'x64') return 'linux';
+    if (type === 'Darwin' && arch === 'x64') return 'macos';
+
+    throw new Error(`Unsupported platform: ${type} ${arch}`);
+}
+
 function getBinary() {
     const name = 'rune';
     const version = require('../package.json').version;
-    const url = `https://github.com/ancientproject/cli/releases/download/v${version}/${name}-cli-win-64.zip`;
+    const url = `https://github.com/ancientproject/cli/releases/download/v${version}/${name}-cli-${getPlatform()}-64.zip`;
     return new Binary(url, { name });
 }
 

npm/run.js

@@ -2,7 +2,10 @@
 
 const getBinary = require('./getBinary');
 
-
 if(!getBinary().exist())
+{
+    console.log(">> installing binaries...");
     getBinary().install();
-getBinary().run();
+}
+else
+	getBinary().run();