1 files changed, 68 insertions, 0 deletions
diff --git a/.packages/microsoft.dotnet.buildtools/3.0.0-preview4-04022-01/lib/init-tools.ps1 b/.packages/microsoft.dotnet.buildtools/3.0.0-preview4-04022-01/lib/init-tools.ps1
new file mode 100755
index 0000000000..296f5aa431
--- /dev/null
+++ b/.packages/microsoft.dotnet.buildtools/3.0.0-preview4-04022-01/lib/init-tools.ps1
@@ -0,0 +1,68 @@
+ param (
+    [Parameter(Mandatory=$true)][string]$ToolRuntimePath,
+    [Parameter(Mandatory=$true)][string]$DotnetCmd,
+    [Parameter(Mandatory=$true)][string]$BuildToolsPackageDir
+ )
+
+# Override versions in runtimeconfig.json files with highest available runtime version.
+$mncaFolder = (Get-Item $DotnetCmd).Directory.FullName + "\shared\Microsoft.NETCore.App"
+$highestVersion = Get-ChildItem $mncaFolder -Name | Sort-Object BaseName | Select-Object -First 1
+
+foreach ($file in Get-ChildItem $ToolRuntimePath *.runtimeconfig.json)
+{
+    Write-Host "Correcting runtime version of" $file.FullName
+    $text = (Get-Content $file.FullName) -replace "1.1.0","$highestVersion"
+    Set-Content $file.FullName $text
+}
+
+# Make a directory in the root of the tools folder that matches the buildtools version, this is done so
+# the init-tools.cmd (that is checked into each repository that uses buildtools) can write the semaphore
+# marker into this file once tool initialization is complete.
+New-Item -Force -Type Directory (Join-Path $ToolRuntimePath (Split-Path -Leaf (Split-Path $BuildToolsPackageDir)))
+
+# Download the package version props file, if  was passed in the environment.
+$packageVersionPropsUrl = $env:PACKAGEVERSIONPROPSURL
+$packageVersionPropsPath = Join-Path $ToolRuntimePath "DownloadedPackageVersions.props"
+
+if ($packageVersionPropsUrl)
+{
+    Write-Host "Downloading package version props from '$packageVersionPropsUrl' to '$packageVersionPropsPath'..."
+
+    # Copied from init-tools.cmd in CoreFX
+    $retryCount = 0
+    $success = $false
+    $proxyCredentialsRequired = $false
+    do
+    {
+        try
+        {
+            $wc = New-Object Net.WebClient
+            if ($proxyCredentialsRequired)
+            {
+                Write-Host "Proxy Authentication Required. Trying to download the package using proxy credentials."
+                [Net.WebRequest]::DefaultWebProxy.Credentials = [Net.CredentialCache]::DefaultNetworkCredentials
+            }
+            $wc.DownloadFile($packageVersionPropsUrl, $packageVersionPropsPath)
+            $success = $true
+        }
+        catch
+        {
+            if ($retryCount -ge 6)
+            {
+                Write-Host "Downloading package failed after retrying $retryCount times."
+                throw
+            }
+            else
+            {
+                $we = $_.Exception.InnerException -as [Net.WebException]
+                $proxyCredentialsRequired = ($we -ne $null -and ([Net.HttpWebResponse]$we.Response).StatusCode -eq [Net.HttpStatusCode]::ProxyAuthenticationRequired)
+                Start-Sleep -Seconds (5 * $retryCount)
+                $retryCount++
+            }
+            Write-Host "Failed to download '$packageVersionPropsPath'. Trying again..."
+        }
+    } while ($success -eq $false);
+
+    Write-Host "Successfully downloaded package version props:"
+    Get-Content $packageVersionPropsPath
+}