Add Windows compatibility in 4 node scripts. (#6015)

Added windows compatibility to build scripts. To run the packager on windows, use: `npm run start-windows`

Co-authored-by: Guy Carmeli <guyca@users.noreply.github.com>

docs/docs/WorkingLocally.md

 | `npm run build` | compiles TypeScript sources `./lib/src` into javascript `./lib/dist` |
 | `npm run clean` | cleans all build directories, stops packager, fixes flakiness by removing watchman cache, etc. |
 | `npm run start` | starts the react-native packager for local debugging |
+| `npm run start-windows` | starts the react-native packager for local debugging [Windows only] |
 | `npm run xcode` | for convenience, opens xcode in this project |
 | `npm run install-android`  |  builds playground debug/release version and installs on running android devices/emulators. <br> **Options:** `-- --release` |
 | `npm run uninstall-android` | uninstalls playground from running android devices/simulators |

package.json

   "main": "lib/dist/index.js",
   "typings": "lib/dist/index.d.ts",
   "scripts": {
-    "build": "rm -rf ./lib/dist && tsc",
-    "watch": "rm -rf ./lib/dist && tsc --watch",
+    "build": "node ./scripts/build",
+    "watch": "node ./scripts/watch",
     "xcode": "open playground/ios/playground.xcworkspace",
     "install-android": "node ./scripts/install-android",
     "uninstall-android": "cd playground/android && ./gradlew uninstallAll",
       }
     }
   }
-}
+}

scripts/build.js

+const exec = require('shell-utils').exec;
+
+const isWindows = process.platform === 'win32' ? true : false;
+
+run();
+
+function run() {
+    if (isWindows) {
+        exec.execSync(`del /F /S /Q lib\\dist`);
+        exec.execSync(`tsc`);
+    } else {
+        exec.execSync(`rm -rf ./lib/dist && tsc`);
+    }
+}

scripts/clean.js

 const exec = require('shell-utils').exec;
 
-run();
+const isWindows = process.platform === 'win32' ? true : false;
+
+if (isWindows) runWin32();
+else run();
 
 function run() {
   exec.killPort(8081);
   exec.execSync(`rm -rf playground/android/app/build`);
   exec.execSync(`rm -rf lib/dist`);
 }
+
+function runWin32() {
+  exec.execSync(`adb reverse tcp:8081 tcp:8081 || true`);
+
+  exec.execSync('del /F /S /Q lib\\android\\build');
+  exec.execSync('del /F /S /Q lib\\android\\app\\build');
+  exec.execSync('del /F /S /Q playground\\android\\build');
+  exec.execSync('del /F /S /Q playground\\android\\app\\build');
+  exec.execSync('del /F /S /Q lib\\dist');
+}

scripts/install-android.js

 
 const release = includes(process.argv, '--release');
 
+const isWindows = process.platform === 'win32' ? true : false;
+
 run();
 
 function run() {
-  exec.execSync(`cd playground/android && ./gradlew ${release ? 'installRelease' : 'installDebug'}`);
+  if (isWindows) {
+  	exec.execSync(`cd playground/android && gradlew ${release ? 'installRelease' : 'installDebug'}`);
+  } else {
+  	exec.execSync(`cd playground/android && ./gradlew ${release ? 'installRelease' : 'installDebug'}`);
+  }
 }

scripts/watch.js

+const exec = require('shell-utils').exec;
+
+const isWindows = process.platform === 'win32' ? true : false;
+
+run();
+
+function run() {
+    if (isWindows) {
+        exec.execSync(`del /F /S /Q lib\\dist`);
+        exec.execSync(`tsc --watch`);
+    } else {
+        exec.execSync(`rm -rf ./lib/dist && tsc --watch`);
+    }
+}