Adds support for .upmconfig.toml in Windows Docker images

dist/platforms/windows/entrypoint.ps1

@@ -1,5 +1,13 @@
 Get-Process
 
+# Copy .upmconfig.toml if it exists
+if (Test-Path "C:\githubhome\.upmconfig.toml") {
+  Write-Host "Copying .upmconfig.toml to $Env:USERPROFILE\.upmconfig.toml"
+  Copy-Item -Path "C:\githubhome\.upmconfig.toml" -Destination "$Env:USERPROFILE\.upmconfig.toml" -Force
+} else {
+  Write-Host "No .upmconfig.toml found at C:\githubhome"
+}
+
 # Import any necessary registry keys, ie: location of windows 10 sdk
 # No guarantee that there will be any necessary registry keys, ie: tvOS
 Get-ChildItem -Path c:\regkeys -File | ForEach-Object { reg import $_.fullname }

src/model/docker.ts

@@ -92,20 +92,25 @@
     const {
       workspace,
       actionFolder,
+      runnerTempPath,
       gitPrivateToken,
       dockerWorkspacePath,
       dockerCpuLimit,
       dockerMemoryLimit,
       dockerIsolationMode,
     } = parameters;
 
+    const githubHome = path.join(runnerTempPath, '_github_home');
+    if (!existsSync(githubHome)) mkdirSync(githubHome);
+
     return `docker run \
             --workdir c:${dockerWorkspacePath} \
             --rm \
             ${ImageEnvironmentFactory.getEnvVarString(parameters)} \
             --env GITHUB_WORKSPACE=c:${dockerWorkspacePath} \
             ${gitPrivateToken ? `--env GIT_PRIVATE_TOKEN="${gitPrivateToken}"` : ''} \
             --volume "${workspace}":"c:${dockerWorkspacePath}" \
+            --volume "${githubHome}":"C:/githubhome" \
             --volume "c:/regkeys":"c:/regkeys" \
             --volume "C:/Program Files/Microsoft Visual Studio":"C:/Program Files/Microsoft Visual Studio" \
             --volume "C:/Program Files (x86)/Microsoft Visual Studio":"C:/Program Files (x86)/Microsoft Visual Studio" \