Gn: Add support to generate Visual Studio 2017 solutions.

tools/gn/visual_studio_writer.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "tools/gn/visual_studio_writer.h"
 
 #include <algorithm>
 #include <iterator>
 #include <map>
 #include <memory>
@@ skipping 53 matching lines @@
   void operator()(std::ostream& out) const {
     path_output_.WriteFile(out, source_file_);
   }
 
   PathOutput& path_output_;
   const SourceFile& source_file_;
 };
 
 const char kToolsetVersionVs2013[] = "v120";               // Visual Studio 2013
 const char kToolsetVersionVs2015[] = "v140";               // Visual Studio 2015
+const char kToolsetVersionVs2017[] = "v141";               // Visual Studio 2017

[scottmg, 2017/03/07 21:37:09]

Sigh at 141 :/

[scottmg, 2017/03/07 22:05:13]

There was a certain symmetry they had going with 120==VS12, 140==VS14, but then
141 != VS15. Oh well.

 const char kProjectVersionVs2013[] = "12.0";               // Visual Studio 2013
 const char kProjectVersionVs2015[] = "14.0";               // Visual Studio 2015
+const char kProjectVersionVs2017[] = "15.0";               // Visual Studio 2015
 const char kVersionStringVs2013[] = "Visual Studio 2013";  // Visual Studio 2013
 const char kVersionStringVs2015[] = "Visual Studio 2015";  // Visual Studio 2015
+const char kVersionStringVs2017[] = "Visual Studio 2017";  // Visual Studio 2017
 const char kWindowsKitsVersion[] = "10";                   // Windows 10 SDK
 const char kWindowsKitsIncludeVersion[] = "10.0.14393.0";  // Windows 10 SDK
 
 const char kGuidTypeProject[] = "{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}";
 const char kGuidTypeFolder[] = "{2150E333-8FDC-42A3-9474-1A3956D46DE8}";
 const char kGuidSeedProject[] = "project";
 const char kGuidSeedFolder[] = "folder";
 const char kGuidSeedFilter[] = "filter";
 
 const char kConfigurationName[] = "GN";
@@ skipping 178 matching lines @@
     case Version::Vs2013:
       project_version_ = kProjectVersionVs2013;
       toolset_version_ = kToolsetVersionVs2013;
       version_string_ = kVersionStringVs2013;
       break;
     case Version::Vs2015:
       project_version_ = kProjectVersionVs2015;
       toolset_version_ = kToolsetVersionVs2015;
       version_string_ = kVersionStringVs2015;
       break;
+    case Version::Vs2017:
+      project_version_ = kProjectVersionVs2017;
+      toolset_version_ = kToolsetVersionVs2017;
+      version_string_ = kVersionStringVs2017;
+      break;
     default:
       NOTREACHED() << "Not a valid Visual Studio Version: " << version;
   }
 
   windows_kits_include_dirs_ = GetWindowsKitsIncludeDirs();
 }
 
 VisualStudioWriter::~VisualStudioWriter() {
 }
 
@@ skipping 573 matching lines @@
   }
 }
 
 std::string VisualStudioWriter::GetNinjaTarget(const Target* target) {
   std::ostringstream ninja_target_out;
   DCHECK(!target->dependency_output_file().value().empty());
   ninja_path_output_.WriteFile(ninja_target_out,
                                target->dependency_output_file());
   return ninja_target_out.str();
 }