Create separate Top-level directory per platform

- Replace src\powershell top level project by two
  new root-level projects:
    - src\powershell-unix
    - src\powershell-windows
- Break src\Modules into more granular structure:
  - Shared
  - Windows+Unix-Core
  - Windows-Core
  - Windows-Core+Full
  - Windows-Full
  - To be created: Unix-Core. We will do it as a separate PR
- Fix PowerShell#1122 : Platform-specific set of Modules (and assemblies)
- Fix Start-TypeGen to work with new top level folders layout

Author: Sergei Vorobev

build.psm1

@@ -346,13 +346,6 @@ function New-PSOptions {
     # Add .NET CLI tools to PATH
     Find-Dotnet
 
-    if ($FullCLR) {
-        $Top = "$PSScriptRoot/src/Microsoft.PowerShell.ConsoleHost"
-    } else {
-        $Top = "$PSScriptRoot/src/powershell"
-    }
-    Write-Verbose "Top project directory is $Top"
-
     if (-not $Configuration) {
         $Configuration = if ($IsLinux -or $IsOSX) {
             "Linux"
@@ -362,6 +355,21 @@ function New-PSOptions {
         Write-Verbose "Using configuration '$Configuration'"
     }
 
+    if ($FullCLR) {
+        $Top = "$PSScriptRoot/src/Microsoft.PowerShell.ConsoleHost"
+    } else {
+        if ($Configuration -eq 'Linux')
+        {
+            $Top = "$PSScriptRoot/src/powershell-unix"
+        }
+        else
+        {
+            $Top = "$PSScriptRoot/src/powershell-windows"
+        }
+    }
+    Write-Verbose "Top project directory is $Top"
+
+
     if (-not $Framework) {
         $Framework = if ($FullCLR) {
             "net451"
@@ -1072,7 +1080,8 @@ function Start-TypeGen
     Push-Location "$PSScriptRoot/src/TypeCatalogParser"
     try
     {
-        dotnet run
+        $topPath = if ($IsWindows) {'../powershell-windows'} else {'../powershell-unix'}
+        dotnet run $topPath
     }
     finally
     {

src/Microsoft.PowerShell.ConsoleHost/project.json

@@ -15,7 +15,8 @@
             "mappings": {
                 "Modules/" : {
                     "include": [
-                        "../Modules/Full",
+                        "../Modules/Windows-Full",
+                        "../Modules/Windows-Core+Full",
                         "../Modules/Shared"
                     ],
                     "exclude": [
@@ -34,7 +35,8 @@
         "mappings": {
             "Modules/" : {
                 "include": [
-                    "../Modules/Full",
+                    "../Modules/Windows-Full",
+                    "../Modules/Windows-Core+Full",
                     "../Modules/Shared"
                 ],
                 "exclude": [
@@ -56,15 +58,8 @@
         }
     },
 
-
     "dependencies": {
-        "Microsoft.PowerShell.PSReadLine": "1.0.0-*",
-        "Microsoft.PowerShell.Commands.Diagnostics": "1.0.0-*",
-        "Microsoft.PowerShell.Commands.Management": "1.0.0-*",
-        "Microsoft.PowerShell.Commands.Utility": "1.0.0-*",
-        "Microsoft.PowerShell.LocalAccounts": "1.0.0-*",
-        "Microsoft.PowerShell.PackageManagement": "1.0.0-*",
-        "Microsoft.Management.Infrastructure.CimCmdlets": "1.0.0-*"
+        "System.Management.Automation": "1.0.0-*"
     },
 
     "frameworks": {
@@ -94,15 +89,22 @@
         },
         "net451": {
             "dependencies": {
-                "Microsoft.PowerShell.ScheduledJob": "1.0.0-*",
-                "Microsoft.PowerShell.Workflow.ServiceCore": "1.0.0-*",
-                "Microsoft.PowerShell.GraphicalHost": "1.0.0-*",
+                "Microsoft.Management.Infrastructure.CimCmdlets": "1.0.0-*",
                 "Microsoft.PowerShell.Activities": "1.0.0-*",
+                "Microsoft.PowerShell.Commands.Diagnostics": "1.0.0-*",
+                "Microsoft.PowerShell.Commands.Management": "1.0.0-*",
+                "Microsoft.PowerShell.Commands.Utility": "1.0.0-*",
                 "Microsoft.PowerShell.Core.Activities": "1.0.0-*",
                 "Microsoft.PowerShell.Diagnostics.Activities": "1.0.0-*",
+                "Microsoft.PowerShell.GraphicalHost": "1.0.0-*",
+                "Microsoft.PowerShell.LocalAccounts": "1.0.0-*",
                 "Microsoft.PowerShell.Management.Activities": "1.0.0-*",
+                "Microsoft.PowerShell.PackageManagement": "1.0.0-*",
+                "Microsoft.PowerShell.PSReadLine": "1.0.0-*",
+                "Microsoft.PowerShell.ScheduledJob": "1.0.0-*",
                 "Microsoft.PowerShell.Security.Activities": "1.0.0-*",
                 "Microsoft.PowerShell.Utility.Activities": "1.0.0-*",
+                "Microsoft.PowerShell.Workflow.ServiceCore": "1.0.0-*",
                 "Microsoft.WSMan.Management.Activities": "1.0.0-*"
             }
         }

src/Modules/README.md

@@ -11,15 +11,16 @@ Content files includes:
 
 These files are copied as-is by `dotnet`
 
-- **Shared** is shared between all flavours
-- **Full** for FullCLR (Windows)
-- **Core** for CoreCLR (all platforms)
+- Shared (shared between all variations)
+- Windows+Unix-Core
+- Windows-Core
+- Windows-Core+Full
+- Windows-Full
 
 Notes
 -----------
 
-* We have files with the same names in "Full" and "Core" folders.
+We have files with the same names in different folders.
 That means that the contents of these two files are different. 
-I.e. if it's .psd1 file, it could be because `CmdletsToExport` are different for different platforms.
-
-* Also, we should never have files with the same names under "Full" and "Shared" (or "Core" and "Shared").
+I.e. if it's .psd1 file, it could be because `CmdletsToExport`
+are different for different runtimes (platforms) or frameworks.