Get Sonar Running on Windows

Summary: Small tweaks so that Sonar can be started easily on windows.

Reviewed By: danielbuechele

Differential Revision: D8769592

fbshipit-source-id: 084dd50e5600a7e2e9c5544e3e79a18614933fdc

scripts/yarn-install.js

@@ -7,7 +7,7 @@
 
 const glob = require('glob');
 const path = require('path');
-const {spawn} = require('child_process');
+const {exec} = require('child_process');
 const PACKAGES = ['static', 'src/plugins/*', 'src/fb/plugins/*'];
 const WINDOWS = /^win/.test(process.platform);
 const YARN_PATH =
@@ -36,13 +36,21 @@ Promise.all(
     Promise.all(
       packages.reduce((acc, cv) => acc.concat(cv), []).map(
         pkg =>
-          new Promise(resolve => {
+          new Promise((resolve, reject) => {
             const cwd = pkg.replace('/package.json', '');
-            const yarn = spawn(YARN_PATH, ['--mutex', 'file'], {
-              cwd,
-            });
-            yarn.stderr.on('data', e => console.error(e.toString()));
-            yarn.on('close', code => resolve(code));
+            exec(
+              [YARN_PATH, '--mutex', 'file'].join(' '),
+              {
+                cwd,
+              },
+              (err, stderr, stdout) => {
+                if (err) {
+                  reject(err);
+                } else {
+                  resolve(0);
+                }
+              },
+            );
           }),
       ),
     ),