dev-link script works also on Windows (teambit#4223)

Author: Mikilll94

package.json

@@ -51,6 +51,7 @@
   ],
   "scripts": {
     "dev-link": "node ./scripts/establish-dev-link.js $1",
+    "dev-link:windows": "node ./scripts/establish-dev-link-windows.js $1",
     "ts-coverage": "type-coverage",
     "check-types": "tsc",
     "ts-watch": "tsc -w",

scripts/establish-dev-link-windows.js

@@ -0,0 +1,31 @@
+const { rmSync, mkdirSync, writeFileSync } = require('fs');
+const { exec } = require('child_process');
+const path = require('path');
+
+const userLinkName = process.argv[3];
+const linkName = userLinkName || 'bit-dev';
+
+const source = path.join(__dirname, '..', 'bin', 'bit.js');
+const dest = `${process.env.localappdata}\\${linkName}`;
+
+rmSync(dest, { recursive: true, force: true });
+mkdirSync(dest);
+
+writeFileSync(`${dest}\\${linkName}.bat`, `@echo off\nnode ${source} %*`);
+
+if (process.env.PATH.includes(dest)) {
+  console.log(`Success!!!\nNow you can use the "${linkName}" command to run your dev app.`);
+  return;
+}
+
+exec(`powershell -NoProfile -ExecutionPolicy Bypass -Command "[Environment]::SetEnvironmentVariable('path', [Environment]::GetEnvironmentVariable('path', [EnvironmentVariableTarget]::User) + ';${dest}', 'User');"`, (error, stdout, stderr) => {
+  if (error) {
+    console.error(`exec error: ${error}`);
+    return;
+  }
+
+  if (stdout) console.log(stdout);
+  if (stderr) console.error(stderr);
+
+  console.log(`Success!!!\nPlease close and reopen the terminal.\nIf you are using VSCode, you need to close it and reopen.\nThen you will be able to use the "${linkName}" command to run your dev app :)`);
+});

scripts/establish-dev-link.js

@@ -34,6 +34,6 @@ exec(`ln -sf ${source} ${dest}`, (error, stdout, stderr) => {
 
     if (sout) console.log(sout);
     if (serr) console.error(serr);
-    console.log(`now you can use the "${linkName}" command to run you dev app`);
+    console.log(`Now you can use the "${linkName}" command to run your dev app.`);
   });
 });