First pass at building Windows MSI for the dotnet CLI repo.

- Use the heat tool to harvest the stage2 dir and create install-files.wxs
- dotnet.wxs contains the XML code which is constant across builds for an MSI.
- Use Candle and Light to generate the MSI from install-files.wxs and dotnet.wxs.

Default Install Location - %ProgramFiles%/dotnet.
Adds <InstallRoot>\bin %PATH%
Creates %DOTNET_HOME% pointing to <InstallRoot>

packaging/windows/WiXTools/Program.cs

@@ -0,0 +1,14 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+namespace WiX.Toolset.2015
+{
+    public class Program
+    {
+        public static int Main(string[] args)
+        {
+            // Temporary and bogus. Just needed so we can publish this
+            return 1;
+        }
+    }
+}

packaging/windows/WiXTools/README.md

@@ -0,0 +1,3 @@
+# WiX.Toolset.2015
+
+This is a utility project that brings the Wix Tools down and lets us publish it as though it were an app. Do NOT add any C# code to it! It is not designed to actually be compiled as an assembly, it's just used for its dependencies.

packaging/windows/WiXTools/project.json

@@ -0,0 +1,13 @@
+{
+  "compilationOptions": {
+      "emitEntryPoint": true
+  },
+
+  "dependencies": {
+    "WiX.Toolset.2015": "3.10.0.1503"
+  },
+
+  "frameworks": {
+    "dnxcore50": { }
+  }
+}

packaging/windows/dotnet.wxs

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
+    <Product Id="{12897D7D-AC14-4971-AF57-157E8D327C79}" Language="1033" Manufacturer="Microsoft" Name="Dotnet CLI" UpgradeCode="{FCBF9710-A891-4FF5-8909-48E6EEC9180A}" Version="1.0.0.0">
+        <Package Compressed="yes" InstallerVersion="200" />
+		
+		<WixVariable Id="WixUILicenseRtf" Value="$(var.MicrosoftEula)" />
+		
+		<Property Id="WIXUI_INSTALLDIR" Value="DOTNETHOME"/>
+		<UIRef Id="WixUI_InstallDir" />
+		
+		<Directory Id="TARGETDIR" Name="SourceDir">
+			<Directory Id="ProgramFilesFolder">
+				<Directory Id="DOTNETHOME" Name="dotnet"/>					
+			</Directory>
+		</Directory>
+		
+		<DirectoryRef Id="TARGETDIR">
+			<Component Id="SETENVVARS" Guid="{E503A496-DE1B-4646-81D4-47213B4CCFAF}">
+				<Environment Id="PATH" Name="PATH" Value="[DOTNETHOME]bin" Permanent="no" Part="last" Action="set" System="no" />
+				<Environment Id="DOTNET_HOME" Name="DOTNET_HOME" Value="[DOTNETHOME]" Permanent="no" Part="all" Action="set" System="no" />
+			</Component>
+		</DirectoryRef>
+		
+		<Feature Id="SetEnvVarsFeature" Level="1" Title="Set required env vars">
+            <ComponentRef Id="SETENVVARS" />
+        </Feature>
+		
+		<Feature Id="DotnetFilesFeatures" Level="1" Title="Dotnet Files">
+            <ComponentGroupRef Id="InstallFiles" />
+        </Feature>
+        <Media Id="1" Cabinet="product.cab" EmbedCab="yes" />
+    </Product>
+</Wix>

packaging/windows/generatemsi.ps1

@@ -0,0 +1,142 @@
+# Copyright (c) .NET Foundation and contributors. All rights reserved.
+# Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+param(
+    [string]$inputDir = $(throw "Specify the full path to the directory which needs to be harvested")
+)
+
+. "$PSScriptRoot\..\..\scripts\_common.ps1"
+
+$DotnetMSIOutput = ""
+$WixRoot = ""
+$InstallFileswsx = "install-files.wxs"
+$InstallFilesWixobj = "install-files.wixobj"
+
+function AcquireWixTools
+{
+    pushd "$Stage2Dir\bin"
+
+    Write-Host Restoring Wixtools..
+
+    $result = Join-Path $env:TEMP WiX
+    
+    .\dotnet restore $RepoRoot\packaging\windows\WiXTools --packages $result | Out-Null
+
+    if($LastExitCode -ne 0)
+    {
+        $result = ""
+        Write-Host "dotnet restore failed with exit code $LastExitCode."
+    }
+    else
+    {
+        $result = Join-Path $result WiX.Toolset.2015\3.10.0.1503\tools\wix        
+    }
+
+    popd    
+    return $result
+}
+
+function RunHeat
+{
+    $result = $true    
+    pushd "$WixRoot"    
+
+    Write-Host Running heat..
+
+    .\heat.exe dir `"$inputDir`" -template fragment -sreg -gg -var var.DotnetSrc -cg InstallFiles -srd -dr DOTNETHOME -out $InstallFileswsx | Out-Null
+
+    if($LastExitCode -ne 0)
+    {
+        $result = $false
+        Write-Host "Heat failed with exit code $LastExitCode."
+    }
+
+    popd
+    return $result
+}
+
+function RunCandle
+{
+    $result = $true
+    pushd "$WixRoot"
+
+    Write-Host Running candle..
+
+    .\candle.exe -dDotnetSrc="$inputDir" -dMicrosoftEula="$RepoRoot\packaging\osx\resources\en.lproj\eula.rtf"  "$RepoRoot\packaging\windows\dotnet.wxs" $InstallFileswsx | Out-Null
+
+    if($LastExitCode -ne 0)
+    {
+        $result = $false
+        Write-Host "Candle failed with exit code $LastExitCode."
+    }
+
+    popd
+    return $result
+}
+
+function RunLight
+{
+    $result = $true
+    pushd "$WixRoot"
+
+    Write-Host Running light..
+
+    .\light -ext WixUIExtension -cultures:en-us  dotnet.wixobj $InstallFilesWixobj -out $DotnetMSIOutput | Out-Null
+
+    if($LastExitCode -ne 0)
+    {
+        $result = $false
+        Write-Host "Light failed with exit code $LastExitCode."
+    }
+
+    popd
+    return $result
+}
+
+if(!(Test-Path $inputDir))
+{
+    throw "$inputDir not found"
+}
+
+if(!(Test-Path $PackageDir)) 
+{
+    mkdir $PackageDir | Out-Null
+}
+
+$DotnetMSIOutput = Join-Path $PackageDir "dotnet-win-x64.$env:DOTNET_BUILD_VERSION.msi"
+
+Write-Host "Creating dotnet MSI at $DotnetMSIOutput"
+
+$WixRoot = AcquireWixTools
+
+
+if([string]::IsNullOrEmpty($WixRoot))
+{
+    return -1
+}
+
+if(-Not (RunHeat))
+{    
+    Write-Host Fooooobar
+    return -1
+}
+
+if(-Not (RunCandle))
+{
+    return -1
+}
+
+if(-Not (RunLight))
+{
+    return -1
+}
+
+if(!(Test-Path $DotnetMSIOutput))
+{
+    throw "Unable to create the dotnet msi."
+    return -1
+}
+
+Write-Host -ForegroundColor Green "Successfully create dotnet MSI - $DotnetMSIOutput"
+
+return 0

scripts/build.ps1

@@ -6,6 +6,8 @@
 param(
     [string]$Configuration="Debug")
 
+. "$PSScriptRoot\_common.ps1"
+
 $ErrorActionPreference="Stop"
 
 # Use a repo-local install directory (but not the artifacts directory because that gets cleaned a lot
@@ -31,3 +33,6 @@ Write-Host -ForegroundColor Green "*** Building dotnet tools version $($env:DOTN
 
 Write-Host -ForegroundColor Green "*** Packaging dotnet ***"
 & "$PSScriptRoot\package\package.ps1"
+
+Write-Host -ForegroundColor Green "*** Generating dotnet MSI ***"
+& "$RepoRoot\packaging\windows\generatemsi.ps1" $Stage2Dir