Merge | OS Flags (#3810)

* Add pre-processor constants for target OS

* Add #if _WINDOWS to the Interop/Windows files

* Split out the netfx methods and junk from AdapterUtil

* Split netcore junk from AdapterUtil into a separate file. Oh wait, two methods that had separate implementations were identical...

* Merge the unix and windows version of AdapterUtil back into the main partial.
This file is too big to come up with a consistent way to split all this stuff up.

* Consolidate windows/unix versions of SqlDataSourceEnumerator into one file

* Merging DbConnectionPoolIdentity os-specific versions into the generic class.
Cleaned up some code (removed redundant parentheses, split some long lines, removed always-false variables)

* Add os #if wrappers to LocalDbApi

* Apply #if wrappers to LocalDB files

* Merge the SslOverTdsStream files together

* Split PacketHandle.Windows into PacketHandle.netcore.windows and PacketHandle.netfx.

* Wrap PacketHandle.netcore.unix in _UNIX

* Split Sessionhandle.Windows into SessionHandle.netcore.Windows and SessionHandle.netfx. This really makes these classes easier to read.

* Wrap SessionHandle.netcore.unix in _UNIX flag

* Wrap SqlColumnEncryptionCngProvider in _UNIX and _WINDOWS

* Wrap SqlColumnEncryptionCspProvider in _UNIX and _WINDOWS

* Wrap TdsParserSafeHandles.windows in _WINDOWS

* Add _UNIX wrapper to TdsParserStateObjectFactory.unix.cs

* Wrap TdsParseStateObject[Managed.netcore|Native.windows] in their respective #if's

* Wrap SqlFileStream files in appropriate #if

* Remove ILLink.Substitutions.Unix.xml and embed it in LocalAppContextSwitches

* Conditionally include ILLink.Substitutions.xml for windows *sigh*

* Make CodeAnalysis be a netfx-only file, remove unused attributes, and add comment explaining why this file exists.

* Rename SqlBatchCommand.Net8OrGreater.cs to SqlBatchCommand.netcore.cs

* Wrap SqlDataSourceEnumeratorNativeHelper.cs in windows and rename to indicate that it only applies to Windows.

* Bring in all files for the netcore project, re-sort them, make sure logical paths match the actual path

* Netcore project embedded resources

* Get rid of TargetsWindows/TargetsUnix

* Bring in all files for the netcore project, re-sort them, make sure logical paths match the actual path

* Resource files in netfx project

* Sort a few of the netfx properties to match netcore 🤷

* First round of PR comments

* Fix file inclusion

* Fix "unreachable code detected" issue in unix build

* Addressing comments from @paulmedynski

* Add OS constants to test common project, wrap app context switches that are platform specific in
Fix case-sensitivity issues in netfx project

* Reinstate _WINDOWS check on windows-only netfx files, force _WINDOWS on netfx project, remove explicit NETFRAMEWORK definition in netfx b/c the sdk does it.

---------

Co-authored-by: Ben Russell <ben@holycrapitsbenrussell>

Author: benrr101

build.proj

@@ -153,6 +153,13 @@
     <MSBuild Projects="@(NetCoreDriver)" Properties="$(CI);$(ProjectProperties);Platform=AnyCPU;OSGroup=Windows_NT;" RemoveProperties="TargetsWindows;TargetsUnix;" Condition="'$(IsEnabledWindows)' == 'true'" />
     <MSBuild Projects="@(NetCoreDriver)" Properties="$(CI);$(ProjectProperties);Platform=AnyCPU;OSGroup=AnyOS;" RemoveProperties="TargetsWindows;TargetsUnix;" />
   </Target>
+
+  <Target Name="BuildNetCoreUnix" DependsOnTargets="RestoreNetCore">
+    <MSBuild Projects="@(NetCoreDriver)"
+             Properties="$(CI);$(ProjectProperties);Platform=AnyCPU;OSGroup=Unix;"
+             RemoveProperties="TargetsWindows;TargetsUnix;" />
+   </Target>
+
   <!-- Build .NET Standard target DLLs for Lib folder from here.
    This target enables BuildForLib for the NetCore ref project. -->
   <Target Name="BuildNetStandard">

src/Microsoft.Data.SqlClient/netcore/src/Microsoft.Data.SqlClient.csproj

@@ -2,9 +2,9 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using Microsoft.Win32.SafeHandles;
+#if NET && _WINDOWS
 
-#if NET
+using Microsoft.Win32.SafeHandles;
 
 namespace Interop.Windows.Handles
 {

src/Microsoft.Data.SqlClient/netfx/src/Microsoft.Data.SqlClient.csproj

@@ -2,6 +2,8 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
+#if _WINDOWS
+
 namespace Interop.Windows.Kernel32
 {
     internal class FileTypes
@@ -12,3 +14,5 @@ internal class FileTypes
         internal const int FILE_TYPE_PIPE = 0x0003;
     }
 }
+
+#endif

src/Microsoft.Data.SqlClient/src/Interop/Windows/Handles/SafeLibraryHandle.netcore.cs

@@ -2,6 +2,8 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
+#if _WINDOWS
+
 using System;
 
 namespace Interop.Windows.Kernel32
@@ -31,3 +33,5 @@ public enum IoControlCodeAccess
         FILE_WRITE_DATA = 0x02
     }
 }
+
+#endif

src/Microsoft.Data.SqlClient/src/Interop/Windows/Kernel32/FileTypes.cs

@@ -2,6 +2,8 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
+#if _WINDOWS
+
 namespace Interop.Windows.Kernel32
 {
     /// <summary>
@@ -35,3 +37,5 @@ public enum IoControlTransferType
         METHOD_NEITHER
     }
 }
+
+#endif

src/Microsoft.Data.SqlClient/src/Interop/Windows/Kernel32/IoControlCodeAccess.cs

@@ -2,6 +2,8 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
+#if _WINDOWS
+
 using System;
 using System.Runtime.InteropServices;
 using System.Runtime.Versioning;
@@ -92,3 +94,5 @@ internal static extern int GetFullPathName(
         internal static extern bool SetThreadErrorMode(uint dwNewMode, out uint lpOldMode);
     }
 }
+
+#endif

src/Microsoft.Data.SqlClient/src/Interop/Windows/Kernel32/IoControlTransferType.cs

@@ -2,13 +2,12 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-#if NETFRAMEWORK
+#if NETFRAMEWORK && _WINDOWS
 
 using System;
 using System.Runtime.InteropServices;
 using System.Runtime.Versioning;
 using System.Security;
-using System.Text;
 
 namespace Interop.Windows.Kernel32
 {

src/Microsoft.Data.SqlClient/src/Interop/Windows/Kernel32/Kernel32.cs

@@ -2,6 +2,8 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
+#if _WINDOWS
+
 namespace Interop.Windows.NtDll
 {
     /// <summary>
@@ -54,3 +56,5 @@ internal enum CreateDisposition : uint
         FILE_OVERWRITE_IF = 5
     }
 }
+
+#endif