Offline builds on Windows

scripts/build.ps1

@@ -4,7 +4,8 @@
 #
 
 param(
-    [string]$Configuration="Debug")
+    [string]$Configuration="Debug",
+    [string]$Offline=$false)
 
 . "$PSScriptRoot\_common.ps1"
 
@@ -35,7 +36,11 @@ if (!$env:DOTNET_BUILD_VERSION) {
 }
 
 Write-Host -ForegroundColor Green "*** Building dotnet tools version $($env:DOTNET_BUILD_VERSION) - $Configuration ***"
-& "$PSScriptRoot\compile.ps1" -Configuration:$Configuration
+if ($Offline)
+{
+    Write-Host -ForegroundColor Yellow "  - Offline Build -"
+}
+& "$PSScriptRoot\compile.ps1" -Configuration:$Configuration -Offline:$Offline
 if (!$?) {
     Write-Host "Building dotnet tools finished with errors."
     Exit 1

scripts/compile.ps1

@@ -3,7 +3,8 @@
 # Licensed under the MIT license. See LICENSE file in the project root for full license information.
 #
 
-param([string]$Configuration = "Debug")
+param([string]$Configuration = "Debug",
+      [string]$Offline = $false)
 
 $ErrorActionPreference="Stop"
 
@@ -23,6 +24,10 @@ Download it from https://www.cmake.org
 "@
     }
 
+    if($Offline){
+        Write-Host "Skipping Stage 0, Dnx, and Packages dowlnoad: Offline build"
+    }
+    else {
         # Install a stage 0
         header "Installing dotnet stage 0"
         & "$PSScriptRoot\install.ps1"
@@ -55,7 +60,7 @@ Download it from https://www.cmake.org
             Write-Host "Command failed: " dotnet restore "$RepoRoot" --quiet --runtime "osx.10.10-x64" --runtime "ubuntu.14.04-x64" --runtime "win7-x64" --no-cache
             Exit 1
         }
-
+    }
 
     header "Building corehost"
     pushd "$RepoRoot\src\corehost"