Add upgrade support to the MSI generator. [skip ci]

mesonbuild · Jun 27, 2018 · 14fe098 · 14fe098
1 parent 3232806
commit 14fe098
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/msi/createmsi.py b/msi/createmsi.py
@@ -131,6 +131,9 @@ def generate_files(self):
             'SummaryCodepage': '1252',
         })
 
+        ET.SubElement(product, 'MajorUpgrade',
+                      {'DowngradeErrorMessage': 'A newer version of Meson is already installed.'})
+
         if self.bytesize == 64:
             package.set('Platform', 'x64')
         ET.SubElement(product, 'Media', {