From d2a58ec4f0f01f4c622e0bd99d971ce7fa6d377e Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Tue, 28 Apr 2026 19:00:01 +0000
Subject: [PATCH 1/3] Fix runtime install dir to respect
 DOTNET_GLOBAL_INSTALL_DIR

Agent-Logs-Url: https://github.com/dotnet/arcade/sessions/7ccc9cec-d18e-45be-96e3-4227afc36a1e

Co-authored-by: AndriySvyryd <6539701+AndriySvyryd@users.noreply.github.com>
---
 .../toolset/InstallDotNetCore.targets                      | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/Microsoft.DotNet.Arcade.Sdk/toolset/InstallDotNetCore.targets b/src/Microsoft.DotNet.Arcade.Sdk/toolset/InstallDotNetCore.targets
index 27bccaf4b26..3387f5820c4 100644
--- a/src/Microsoft.DotNet.Arcade.Sdk/toolset/InstallDotNetCore.targets
+++ b/src/Microsoft.DotNet.Arcade.Sdk/toolset/InstallDotNetCore.targets
@@ -9,10 +9,15 @@
     
     <Exec Condition="'$(OS)' != 'Windows_NT'" Command="chmod +x &quot;$(_DotNetInstallScript)&quot;" />
 
+    <PropertyGroup>
+      <_DotNetPath Condition="'$(DOTNET_INSTALL_DIR)' != ''">$(DOTNET_INSTALL_DIR)</_DotNetPath>
+      <_DotNetPath Condition="'$(_DotNetPath)' == ''">$(RepoRoot).dotnet</_DotNetPath>
+    </PropertyGroup>
+
     <InstallDotNetCore
       VersionsPropsPath="$(RepositoryEngineeringDir)Versions.props"
       GlobalJsonPath="$(RepoRoot)global.json"
-      DotNetPath ="$(RepoRoot).dotnet"
+      DotNetPath="$(_DotNetPath)"
       DotNetInstallScript="$(_DotNetInstallScript)"
       Platform="$(Platform)"
       RuntimeSourceFeed="$(DotNetRuntimeSourceFeed)"

From e8a7a61abeaece0447324590a70129565837204e Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Tue, 28 Apr 2026 19:35:15 +0000
Subject: [PATCH 2/3] Use DOTNET_GLOBAL_INSTALL_DIR instead of
 DOTNET_INSTALL_DIR for runtime install path

Agent-Logs-Url: https://github.com/dotnet/arcade/sessions/834bab13-74c2-4704-be4e-c66f62f68e0f

Co-authored-by: AndriySvyryd <6539701+AndriySvyryd@users.noreply.github.com>
---
 .../toolset/InstallDotNetCore.targets                           | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Microsoft.DotNet.Arcade.Sdk/toolset/InstallDotNetCore.targets b/src/Microsoft.DotNet.Arcade.Sdk/toolset/InstallDotNetCore.targets
index 3387f5820c4..545b120fef5 100644
--- a/src/Microsoft.DotNet.Arcade.Sdk/toolset/InstallDotNetCore.targets
+++ b/src/Microsoft.DotNet.Arcade.Sdk/toolset/InstallDotNetCore.targets
@@ -10,7 +10,7 @@
     <Exec Condition="'$(OS)' != 'Windows_NT'" Command="chmod +x &quot;$(_DotNetInstallScript)&quot;" />
 
     <PropertyGroup>
-      <_DotNetPath Condition="'$(DOTNET_INSTALL_DIR)' != ''">$(DOTNET_INSTALL_DIR)</_DotNetPath>
+      <_DotNetPath Condition="'$(DOTNET_GLOBAL_INSTALL_DIR)' != ''">$(DOTNET_GLOBAL_INSTALL_DIR)</_DotNetPath>
       <_DotNetPath Condition="'$(_DotNetPath)' == ''">$(RepoRoot).dotnet</_DotNetPath>
     </PropertyGroup>
 

From 0a5c28f7208223fa9128d1f46e06f23689a08e53 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Tue, 28 Apr 2026 20:05:38 +0000
Subject: [PATCH 3/3] Respect DOTNET_GLOBAL_INSTALL_DIR in
 eng/common/dotnet-install wrappers

Agent-Logs-Url: https://github.com/dotnet/arcade/sessions/117b7ac1-f8f4-41b0-b21a-f62e8c7d5b19

Co-authored-by: AndriySvyryd <6539701+AndriySvyryd@users.noreply.github.com>
---
 eng/common/dotnet-install.ps1 | 6 +++++-
 eng/common/dotnet-install.sh  | 6 +++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/eng/common/dotnet-install.ps1 b/eng/common/dotnet-install.ps1
index 811f0f717f7..50ae6273768 100644
--- a/eng/common/dotnet-install.ps1
+++ b/eng/common/dotnet-install.ps1
@@ -10,7 +10,11 @@ Param(
 
 . $PSScriptRoot\tools.ps1
 
-$dotnetRoot = Join-Path $RepoRoot '.dotnet'
+if (-not [string]::IsNullOrEmpty($env:DOTNET_GLOBAL_INSTALL_DIR)) {
+  $dotnetRoot = $env:DOTNET_GLOBAL_INSTALL_DIR
+} else {
+  $dotnetRoot = Join-Path $RepoRoot '.dotnet'
+}
 
 $installdir = $dotnetRoot
 try {
diff --git a/eng/common/dotnet-install.sh b/eng/common/dotnet-install.sh
index 61f302bb677..1cb3f5abac2 100755
--- a/eng/common/dotnet-install.sh
+++ b/eng/common/dotnet-install.sh
@@ -80,7 +80,11 @@ case $cpuname in
     ;;
 esac
 
-dotnetRoot="${repo_root}.dotnet"
+if [[ -n "${DOTNET_GLOBAL_INSTALL_DIR:-}" ]]; then
+  dotnetRoot="$DOTNET_GLOBAL_INSTALL_DIR"
+else
+  dotnetRoot="${repo_root}.dotnet"
+fi
 if [[ $architecture != "" ]] && [[ $architecture != $buildarch ]]; then
   dotnetRoot="$dotnetRoot/$architecture"
 fi