Add option to install dotnet at .dotnet/$rid

Author: am11

.devcontainer/android/devcontainer.json

@@ -54,7 +54,7 @@
 	// This allows developers to just use 'dotnet build' on the command-line, and the local dotnet version will be used.
     // Add the Android SDK tooling and emulator to the path.
 	"remoteEnv": {
-		"PATH": "${containerWorkspaceFolder}/.dotnet:${containerEnv:ANDROID_SDK_ROOT}/cmdline-tools/cmdline-tools/bin:${containerEnv:ANDROID_SDK_ROOT}/emulator:${containerEnv:ANDROID_SDK_ROOT}/platform-tools:${containerEnv:PATH}",
+		"PATH": "${containerWorkspaceFolder}/.dotnet/linux-x64:${containerEnv:ANDROID_SDK_ROOT}/cmdline-tools/cmdline-tools/bin:${containerEnv:ANDROID_SDK_ROOT}/emulator:${containerEnv:ANDROID_SDK_ROOT}/platform-tools:${containerEnv:PATH}",
 		"DOTNET_MULTILEVEL_LOOKUP": "0"
 	},
 

.devcontainer/devcontainer.json

@@ -39,7 +39,7 @@
 	// Add the locally installed dotnet to the path to ensure that it is activated
 	// This allows developers to just use 'dotnet build' on the command-line, and the local dotnet version will be used.
 	"remoteEnv": {
-		"PATH": "${containerWorkspaceFolder}/.dotnet:${containerEnv:PATH}",
+		"PATH": "${containerWorkspaceFolder}/.dotnet/linux-x64:${containerEnv:PATH}",
 		"DOTNET_MULTILEVEL_LOOKUP": "0"
 	},
 

.devcontainer/libraries/devcontainer.json

@@ -45,7 +45,7 @@
 	// Add the locally installed dotnet to the path to ensure that it is activated
 	// This allows developers to just use 'dotnet build' on the command-line, and the local dotnet version will be used.
 	"remoteEnv": {
-		"PATH": "${containerWorkspaceFolder}/.dotnet:${containerEnv:PATH}",
+		"PATH": "${containerWorkspaceFolder}/.dotnet/linux-x64:${containerEnv:PATH}",
 		"DOTNET_MULTILEVEL_LOOKUP": "0"
 	},
 

.devcontainer/wasm-multiThreaded/devcontainer.json

@@ -47,7 +47,7 @@
 	// This allows developers to just use 'dotnet build' on the command-line, and the local dotnet version will be used.
 	// Add the global tools dir to the PATH so that globally installed tools will work
 	"remoteEnv": {
-		"PATH": "${containerWorkspaceFolder}/.dotnet:${containerWorkspaceFolder}/.dotnet-tools-global:${containerEnv:PATH}",
+		"PATH": "${containerWorkspaceFolder}/.dotnet/linux-x64:${containerWorkspaceFolder}/.dotnet-tools-global:${containerEnv:PATH}",
 		"DOTNET_MULTILEVEL_LOOKUP": "0",
 	},
 

.devcontainer/wasm/devcontainer.json

@@ -47,7 +47,7 @@
 	// This allows developers to just use 'dotnet build' on the command-line, and the local dotnet version will be used.
 	// Add the global tools dir to the PATH so that globally installed tools will work
 	"remoteEnv": {
-		"PATH": "${containerWorkspaceFolder}/.dotnet:${containerWorkspaceFolder}/.dotnet-tools-global:${containerEnv:PATH}",
+		"PATH": "${containerWorkspaceFolder}/.dotnet/linux-x64:${containerWorkspaceFolder}/.dotnet-tools-global:${containerEnv:PATH}",
 		"DOTNET_MULTILEVEL_LOOKUP": "0",
 	},
 

dotnet.cmd

@@ -16,7 +16,7 @@ set Platform=
 :: Don't resolve runtime, shared framework, or SDK from other locations to ensure build determinism
 set DOTNET_MULTILEVEL_LOOKUP=0
 
-:: Disable first run since we want to control all package sources
-set DOTNET_SKIP_FIRST_TIME_EXPERIENCE=1
+:: Install at .dotent/${RID}
+set DOTNET_USE_ARCH_IN_INSTALL_PATH=1
 
 call "%dotnetPath%\dotnet.exe" %*

dotnet.sh

@@ -15,8 +15,8 @@ scriptroot="$( cd -P "$( dirname "$source" )" && pwd )"
 # Don't resolve runtime, shared framework, or SDK from other locations to ensure build determinism
 export DOTNET_MULTILEVEL_LOOKUP=0
 
-# Disable first run since we want to control all package sources
-export DOTNET_SKIP_FIRST_TIME_EXPERIENCE=1
+# Install at .dotent/${RID}
+export DOTNET_USE_ARCH_IN_INSTALL_PATH=1
 
 source $scriptroot/eng/common/tools.sh
 

eng/common/tools.ps1

@@ -188,6 +188,23 @@ function InitializeDotNetCli([bool]$install, [bool]$createSdkLocationFile) {
     $dotnetRoot = $env:DOTNET_INSTALL_DIR
   } else {
     $dotnetRoot = Join-Path $RepoRoot '.dotnet'
+    if ($env:DOTNET_USE_ARCH_IN_INSTALL_PATH -eq "1") {
+      $osArchitecture = [System.Runtime.InteropServices.RuntimeInformation]::OSArchitecture
+      if ($osArchitecture) {
+        $rid = "win-$osArchitecture".ToLowerInvariant()
+      } else {
+        # netfx / desktop
+        $osArchitecture = (Get-CimInstance -ClassName Win32_OperatingSystem).OSArchitecture
+        switch -Wildcard ($osArchitecture) {
+            "*ARM 64-bit*" { $rid = "win-arm64"; break }
+            "*ARM*" { $rid = "win-arm"; break }
+            "*32-bit*" { $rid = "win-x86"; break }
+            "*64-bit*" { $rid = "win-x64"; break }
+        }
+      }
+
+      $dotnetRoot = Join-Path $dotnetRoot $rid
+    }
 
     if (-not (Test-Path(Join-Path $dotnetRoot "sdk\$dotnetSdkVersion"))) {
       if ($install) {

eng/common/tools.sh

@@ -145,6 +145,11 @@ function InitializeDotNetCli {
     dotnet_root="$DOTNET_INSTALL_DIR"
   else
     dotnet_root="${repo_root}.dotnet"
+    if [[ "${DOTNET_USE_ARCH_IN_INSTALL_PATH:-}" == "1" ]]; then
+      . "$_script_dir/native/init-os-and-arch.sh"
+      if (ldd --version 2>&1 || true) | grep -q musl; then os="${os}-musl"; fi
+      dotnet_root="${dotnet_root}/${os}-${arch}"
+    fi
 
     export DOTNET_INSTALL_DIR="$dotnet_root"
 

eng/pipelines/libraries/fuzzing/deploy-to-onefuzz.yml

@@ -12,7 +12,7 @@ variables:
   - name: fuzzerProject
     value: $(Build.SourcesDirectory)/src/libraries/Fuzzing/DotnetFuzzing
   - name: dotnetPath
-    value: $(Build.SourcesDirectory)/.dotnet/dotnet
+    value: $(Build.SourcesDirectory)/dotnet.cmd
 
 extends:
   template: /eng/pipelines/common/templates/pipeline-with-resources.yml