Merge pull request #78596 from compnerd/info

utils: introduce a `ToolchainInfo.plist` on Windows

Author: compnerd

utils/build.ps1

@@ -124,6 +124,7 @@ param(
   [string[]] $AndroidSDKs = @(),
   [string[]] $WindowsSDKs = @("X64","X86","Arm64"),
   [string] $ProductVersion = "0.0.0",
+  [string] $ToolchainIdentifier = $(if (${env:TOOLCHAIN_VERSION}) { "${env:TOOLCHAIN_VERSION}" } else { "${env:USERNAME}.development" }),
   [string] $PinnedBuild = "",
   [string] $PinnedSHA256 = "",
   [string] $PinnedVersion = "",
@@ -1533,6 +1534,9 @@ function Build-Compilers() {
         "cmark-gfm_DIR" = "$($Arch.ToolchainInstallRoot)\usr\lib\cmake";
       })
   }
+
+  Invoke-Program "$(Get-PythonExecutable)" -c "import plistlib; print(str(plistlib.dumps({ 'Identifier': '${ToolchainIdentifier}' }), encoding='utf-8'))" `
+      -OutFile "$($Arch.ToolchainInstallRoot)\ToolchainInfo.plist"
 }
 
 # Reference: https://github.com/microsoft/mimalloc/tree/dev/bin#minject