Remove Start-Process from make.ps1.

This also removes the hardcoded path
requirement for dotnet.exe, and simplifies
the utility and dotnet detection.

The nr flag is no longer needed for dotnet,
and nologo is added to reduce unnecessary output.

The Release configuration is set for consistency
with the real Makefile.

make.ps1

@@ -5,16 +5,15 @@
 ###############################################################
 function All-Command 
 {
-	Dependencies-Command 
+	if (CheckForDotnet -eq 1)
-
-	if (!(Test-Path "C:\Program Files\dotnet\dotnet.exe"))
 	{
-		DotnetNotFound
 		return
 	}
 
-	$proc = Start-Process "C:\Program Files\dotnet\dotnet.exe" "build /nr:false" -NoNewWindow -PassThru -Wait
+	Dependencies-Command
-	if ($proc.ExitCode -ne 0)
+
+	dotnet build /p:Configuration=Release /nologo
+	if ($lastexitcode -ne 0)
 	{
 		echo "Build failed. If just the development tools failed to build, try installing Visual Studio. You may also still be able to run the game."
 	}
@@ -26,12 +25,12 @@ function All-Command
 
 function Clean-Command 
 {
-	if (!(Test-Path "C:\Program Files\dotnet\dotnet.exe"))
+	if (CheckForDotnet -eq 1)
 	{
-		DotnetNotFound
 		return
 	}
-	$proc = Start-Process "C:\Program Files\dotnet\dotnet.exe" "clean /nr:false" -NoNewWindow -PassThru -Wait
+
+	dotnet clean /nologo
 	rm *.dll
 	rm mods/*/*.dll
 	rm *.config
@@ -105,14 +104,13 @@ function Dependencies-Command
 	cd ..
 	echo "Dependencies copied."
 
-	if (!(Test-Path "C:\Program Files\dotnet\dotnet.exe"))
+	if (CheckForDotnet -eq 1)
 	{
-		DotnetNotFound
 		return
 	}
 
-	$proc = Start-Process "C:\Program Files\dotnet\dotnet.exe" "restore /nr:false" -NoNewWindow -PassThru -Wait
+	dotnet restore /nologo
-	if ($proc.ExitCode -ne 0)
+	if ($lastexitcode -ne 0)
 	{
 		echo "Project restoration failed."
 	}
@@ -120,8 +118,11 @@ function Dependencies-Command
 
 function Test-Command
 {
-	if (Test-Path OpenRA.Utility.exe)
+	if (CheckForUtility -eq 1)
 	{
+		return
+	}
+
 	echo "Testing mods..."
 	echo "Testing Tiberian Sun mod MiniYAML..."
 	./OpenRA.Utility.exe ts --check-yaml
@@ -132,22 +133,14 @@ function Test-Command
 	echo "Testing Red Alert mod MiniYAML..."
 	./OpenRA.Utility.exe ra --check-yaml
 }
-	else
-	{
-		UtilityNotFound
-	}
-}
 
-function Check-Command {
+function Check-Command
-	if (Test-Path OpenRA.Utility.exe)
+{
+	if (CheckForUtility -eq 0)
 	{
 		echo "Checking for explicit interface violations..."
 		./OpenRA.Utility.exe all --check-explicit-interfaces
 	}
-	else
-	{
-		UtilityNotFound
-	}
 
 	if (Test-Path OpenRA.StyleCheck.exe)
 	{
@@ -195,28 +188,38 @@ function Check-Scripts-Command
 
 function Docs-Command
 {
-	if (Test-Path OpenRA.Utility.exe)
+	if (CheckForUtility -eq 1)
 	{
+		return
+	}
+
 	./make.ps1 version
 	./OpenRA.Utility.exe all --docs | Out-File -Encoding "UTF8" DOCUMENTATION.md
 	./OpenRA.Utility.exe all --weapon-docs | Out-File -Encoding "UTF8" WEAPONS.md
 	./OpenRA.Utility.exe all --lua-docs | Out-File -Encoding "UTF8" Lua-API.md
 	./OpenRA.Utility.exe all --settings-docs | Out-File -Encoding "UTF8" Settings.md
 }
-	else
+
+function CheckForUtility
 {
-		UtilityNotFound
+	if (Test-Path OpenRA.Utility.exe)
-	}
+	{
+		return 0
 	}
 
-function UtilityNotFound
-{
 	echo "OpenRA.Utility.exe could not be found. Build the project first using the `"all`" command."
+	return 1
 }
 
-function DotnetNotFound
+function CheckForDotnet
+{
+	if ((Get-Command "dotnet" -ErrorAction SilentlyContinue) -eq $null) 
 	{
 		echo "The 'dotnet' tool is required to compile OpenRA. Please install the .NET Core SDK or Visual studio and try again."
+		return 1
+	}
+
+	return 0
 }
 
 function WaitForInput