Fix sourcemapp builds

Author: CompuIves

packages/app/config/webpack.prod.js

@@ -16,9 +16,9 @@ const commonConfig = require('./webpack.common');
 const publicPath = '/';
 const isMaster =
   childProcess
-    .execSync('git branch')
+    .execSync(`git branch | grep \\* | cut -d ' ' -f2`)
     .toString()
-    .trim() === '* master';
+    .trim() === 'master';
 
 const normalize = normalizeName({ name: true, automaticNameDelimiter: '~' });
 
@@ -308,7 +308,7 @@ module.exports = merge(commonConfig, {
     ]),
     isMaster &&
       new SentryWebpackPlugin({
-        include: '.',
+        include: 'src',
         ignore: ['node_modules', 'webpack.config.js'],
         release: VERSION,
       }),