From 3e822856a6341f1a08885de3ce50a576e1dfe718 Mon Sep 17 00:00:00 2001
From: Devin Binnie <52460000+devinbinnie@users.noreply.github.com>
Date: Thu, 12 Dec 2024 13:03:23 -0500
Subject: [PATCH] [MM-62196] Add support for downgrades using the MSI (#3249)

Co-authored-by: Devin Binnie <devin@sourcestorm.net>
---
 patches/app-builder-lib+24.13.3.patch | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/patches/app-builder-lib+24.13.3.patch b/patches/app-builder-lib+24.13.3.patch
index 8ee87a12..cf29b4ea 100644
--- a/patches/app-builder-lib+24.13.3.patch
+++ b/patches/app-builder-lib+24.13.3.patch
@@ -1,5 +1,5 @@
 diff --git a/node_modules/app-builder-lib/templates/msi/template.xml b/node_modules/app-builder-lib/templates/msi/template.xml
-index 2d5cd3c..3c2d128 100644
+index 2d5cd3c..9bf447e 100644
 --- a/node_modules/app-builder-lib/templates/msi/template.xml
 +++ b/node_modules/app-builder-lib/templates/msi/template.xml
 @@ -1,5 +1,8 @@
@@ -12,21 +12,23 @@ index 2d5cd3c..3c2d128 100644
    <!-- https://blogs.msdn.microsoft.com/gremlininthemachine/2006/12/05/msi-wix-and-unicode/ -->
    <Product Id="*" Name="${productName}" UpgradeCode="${upgradeCode}" Version="${version}" Language="1033" Codepage="65001" Manufacturer="${manufacturer}">
      <Package Compressed="yes" InstallerVersion="500"/>
-@@ -13,6 +16,10 @@
+@@ -13,19 +16,50 @@
  
        So, AllowSameVersionUpgrades="yes" allows to build and test MSI with the same version, and previously installed app will be removed.
      -->
+-    <MajorUpgrade AllowSameVersionUpgrades="yes" DowngradeErrorMessage='A newer version of "[ProductName]" is already installed.'/>
 +    <!-- Remove versions of newer MSI using the wrong UpgradeCode -->
 +    <Upgrade Id="{0F183CAA-DF79-5400-A71F-684F563AF31C}">
 +      <UpgradeVersion Property="PREVMSIINSTALLER" IncludeMaximum="yes" Maximum="${version}" MigrateFeatures="yes" OnlyDetect="no"/>
 +    </Upgrade>
-     <MajorUpgrade AllowSameVersionUpgrades="yes" DowngradeErrorMessage='A newer version of "[ProductName]" is already installed.'/>
++    <MajorUpgrade AllowDowngrades='yes'/>
      <MediaTemplate CompressionLevel="${compressionLevel}" EmbedCab="yes"/>
- 
-@@ -20,12 +27,38 @@
+   
+     <Property Id="WIXUI_INSTALLDIR" Value="APPLICATIONFOLDER"/>
      <Property Id="ApplicationFolderName" Value="${installationDirectoryWixName}"/>
      <Property Id="WixAppFolder" Value="WixPerUserFolder"/>
      <Property Id="DISABLEADVTSHORTCUTS" Value="1"/>
++    <Property Id="REINSTALLMODE" Value="amus" />
 +    <Property Id="EXEINSTALLEREXISTS">
 +      <DirectorySearch Path="[LocalAppDataFolder]\Programs\mattermost-desktop" Depth="0">
 +        <FileSearch Id="SearchEXEUninstaller" Name="Uninstall ${productName}.exe" />
@@ -62,7 +64,7 @@ index 2d5cd3c..3c2d128 100644
      {{ if (isRunAfterFinish) { }}
        <CustomAction Id="runAfterFinish" FileKey="mainExecutable" ExeCommand="" Execute="immediate" Impersonate="yes" Return="asyncNoWait"/>
        {{ if (!isAssisted) { }}
-@@ -42,6 +75,7 @@
+@@ -42,6 +76,7 @@
        <Property Id="ALLUSERS" Secure="yes" Value="2"/>
      {{ } -}}
      <Property Id="MSIINSTALLPERUSER" Secure="yes" Value="1"/>
@@ -70,7 +72,7 @@ index 2d5cd3c..3c2d128 100644
  
      {{ if (isAssisted) { }}
        <WixVariable Id="WixUISupportPerUser" Value="1" Overridable="yes"/>
-@@ -80,6 +114,7 @@
+@@ -80,6 +115,7 @@
        </UI>
      {{ } -}}
  
@@ -78,7 +80,7 @@ index 2d5cd3c..3c2d128 100644
      <Directory Id="TARGETDIR" Name="SourceDir">
        <Directory Id="${programFilesId}">
          {{ if (menuCategory) { }}
-@@ -110,6 +145,10 @@
+@@ -110,6 +146,10 @@
      {{-dirs}}
  
      <ComponentGroup Id="ProductComponents" Directory="APPLICATIONFOLDER">