false
true
$([MSBuild]::NormalizePath('$(ProjectDir)\Bundle'))
$(BundleContentRoot)\**\*
index.windows.bundle
$([MSBuild]::NormalizePath('$(ProjectDir)\Bundle'))
true
false
echo
$([MSBuild]::GetDirectoryNameOfFileAbove($(ProjectDir), 'package.json'))
index.windows.js
index.js
$(OutDir)\sourcemaps\react
$(DefineConstants);BUNDLE
BUNDLE