Always get from NPM

Author: SteveSandersonMS

dotnet/src/build/GitHub.Copilot.SDK.targets

@@ -14,7 +14,7 @@
     <_CopilotRid Condition="'$(_CopilotRid)' == '' And $([MSBuild]::IsOSPlatform('OSX')) And '$([System.Runtime.InteropServices.RuntimeInformation]::OSArchitecture)' == 'Arm64'">osx-arm64</_CopilotRid>
   </PropertyGroup>
 
-  <!-- Map RID to platform name used in npm/GitHub releases -->
+  <!-- Map RID to platform name used in npm packages -->
   <PropertyGroup>
     <_CopilotPlatform Condition="'$(_CopilotRid)' == 'win-x64'">win32-x64</_CopilotPlatform>
     <_CopilotPlatform Condition="'$(_CopilotRid)' == 'win-arm64'">win32-arm64</_CopilotPlatform>
@@ -24,7 +24,6 @@
     <_CopilotPlatform Condition="'$(_CopilotRid)' == 'osx-arm64'">darwin-arm64</_CopilotPlatform>
     <_CopilotBinary Condition="$(_CopilotRid.StartsWith('win-'))">copilot.exe</_CopilotBinary>
     <_CopilotBinary Condition="'$(_CopilotBinary)' == ''">copilot</_CopilotBinary>
-    <_CopilotIsWindows Condition="$(_CopilotRid.StartsWith('win-'))">true</_CopilotIsWindows>
   </PropertyGroup>
 
   <!-- Download and extract CLI binary -->
@@ -33,36 +32,31 @@
 
     <!-- Compute paths using version (now available) -->
     <PropertyGroup>
-      <_CopilotCacheDir>$(IntermediateOutputPath)copilot-cli\$(CopilotCliVersion)\$(_CopilotPlatform)\</_CopilotCacheDir>
-      <_CopilotCliBinaryPath>$(_CopilotCacheDir)$(_CopilotBinary)</_CopilotCliBinaryPath>
-      <_CopilotArchiveExt Condition="'$(_CopilotIsWindows)' == 'true'">.zip</_CopilotArchiveExt>
-      <_CopilotArchiveExt Condition="'$(_CopilotIsWindows)' != 'true'">.tgz</_CopilotArchiveExt>
-      <_CopilotArchivePath>$(_CopilotCacheDir)copilot$(_CopilotArchiveExt)</_CopilotArchivePath>
-      <_CopilotDownloadUrl Condition="'$(_CopilotIsWindows)' == 'true'">https://github.com/github/copilot-cli/releases/download/v$(CopilotCliVersion)/copilot-$(_CopilotPlatform).zip</_CopilotDownloadUrl>
-      <_CopilotDownloadUrl Condition="'$(_CopilotIsWindows)' != 'true'">https://registry.npmjs.org/@github/copilot-$(_CopilotPlatform)/-/copilot-$(_CopilotPlatform)-$(CopilotCliVersion).tgz</_CopilotDownloadUrl>
+      <_CopilotCacheDir>$(IntermediateOutputPath)copilot-cli\$(CopilotCliVersion)\$(_CopilotPlatform)</_CopilotCacheDir>
+      <_CopilotCliBinaryPath>$(_CopilotCacheDir)\$(_CopilotBinary)</_CopilotCliBinaryPath>
+      <_CopilotArchivePath>$(_CopilotCacheDir)\copilot.tgz</_CopilotArchivePath>
+      <_CopilotDownloadUrl>https://registry.npmjs.org/@github/copilot-$(_CopilotPlatform)/-/copilot-$(_CopilotPlatform)-$(CopilotCliVersion).tgz</_CopilotDownloadUrl>
     </PropertyGroup>
 
     <!-- Download if not cached -->
     <MakeDir Directories="$(_CopilotCacheDir)" Condition="!Exists('$(_CopilotCliBinaryPath)')" />
     <Message Importance="high" Text="Downloading Copilot CLI $(CopilotCliVersion) for $(_CopilotPlatform)..." Condition="!Exists('$(_CopilotCliBinaryPath)')" />
-    <DownloadFile SourceUrl="$(_CopilotDownloadUrl)" DestinationFolder="$(_CopilotCacheDir)" DestinationFileName="copilot$(_CopilotArchiveExt)"
+    <DownloadFile SourceUrl="$(_CopilotDownloadUrl)" DestinationFolder="$(_CopilotCacheDir)" DestinationFileName="copilot.tgz"
                   Condition="!Exists('$(_CopilotCliBinaryPath)') And !Exists('$(_CopilotArchivePath)')" />
 
-    <!-- Extract: Windows uses Unzip, others use tar -->
-    <Unzip SourceFiles="$(_CopilotArchivePath)" DestinationFolder="$(_CopilotCacheDir)"
-           Condition="'$(_CopilotIsWindows)' == 'true' And !Exists('$(_CopilotCliBinaryPath)')" />
+    <!-- Extract using tar -->
     <Exec Command="tar -xzf &quot;$(_CopilotArchivePath)&quot; --strip-components=1 -C &quot;$(_CopilotCacheDir)&quot;"
-          Condition="'$(_CopilotIsWindows)' != 'true' And !Exists('$(_CopilotCliBinaryPath)')" />
+          Condition="!Exists('$(_CopilotCliBinaryPath)')" />
 
     <Error Condition="!Exists('$(_CopilotCliBinaryPath)')" Text="Failed to extract Copilot CLI binary to $(_CopilotCliBinaryPath)" />
   </Target>
 
   <!-- Copy CLI binary to output runtimes folder and register for transitive copy -->
   <Target Name="_CopyCopilotCliToOutput" AfterTargets="Build" DependsOnTargets="_DownloadCopilotCli" Condition="'$(_CopilotPlatform)' != ''">
     <PropertyGroup>
-      <_CopilotCacheDir>$(IntermediateOutputPath)copilot-cli\$(CopilotCliVersion)\$(_CopilotPlatform)\</_CopilotCacheDir>
-      <_CopilotCliBinaryPath>$(_CopilotCacheDir)$(_CopilotBinary)</_CopilotCliBinaryPath>
-      <_CopilotOutputDir>$(OutDir)runtimes\$(_CopilotRid)\native\</_CopilotOutputDir>
+      <_CopilotCacheDir>$(IntermediateOutputPath)copilot-cli\$(CopilotCliVersion)\$(_CopilotPlatform)</_CopilotCacheDir>
+      <_CopilotCliBinaryPath>$(_CopilotCacheDir)\$(_CopilotBinary)</_CopilotCliBinaryPath>
+      <_CopilotOutputDir>$(OutDir)runtimes\$(_CopilotRid)\native</_CopilotOutputDir>
     </PropertyGroup>
     <MakeDir Directories="$(_CopilotOutputDir)" />
     <Copy SourceFiles="$(_CopilotCliBinaryPath)" DestinationFolder="$(_CopilotOutputDir)" SkipUnchangedFiles="true" />
@@ -71,8 +65,8 @@
   <!-- Register CLI binary as content so it flows through project references -->
   <Target Name="_RegisterCopilotCliForCopy" BeforeTargets="GetCopyToOutputDirectoryItems" DependsOnTargets="_DownloadCopilotCli" Condition="'$(_CopilotPlatform)' != ''">
     <PropertyGroup>
-      <_CopilotCacheDir>$(IntermediateOutputPath)copilot-cli\$(CopilotCliVersion)\$(_CopilotPlatform)\</_CopilotCacheDir>
-      <_CopilotCliBinaryPath>$(_CopilotCacheDir)$(_CopilotBinary)</_CopilotCliBinaryPath>
+      <_CopilotCacheDir>$(IntermediateOutputPath)copilot-cli\$(CopilotCliVersion)\$(_CopilotPlatform)</_CopilotCacheDir>
+      <_CopilotCliBinaryPath>$(_CopilotCacheDir)\$(_CopilotBinary)</_CopilotCliBinaryPath>
     </PropertyGroup>
     <ItemGroup>
       <ContentWithTargetPath Include="$(_CopilotCliBinaryPath)"