cmConsoleBuf: Factor out cout/cerr console buffer management

Source/CMakeLists.txt

@@ -193,6 +193,8 @@ set(SRCS
   cmComputeLinkInformation.h
   cmComputeTargetDepends.h
   cmComputeTargetDepends.cxx
+  cmConsoleBuf.h
+  cmConsoleBuf.cxx
   cmCPackPropertiesGenerator.h
   cmCPackPropertiesGenerator.cxx
   cmCryptoHash.cxx

Source/CPack/cpack.cxx

@@ -16,6 +16,7 @@
 #include "cmCPackGenerator.h"
 #include "cmCPackGeneratorFactory.h"
 #include "cmCPackLog.h"
+#include "cmConsoleBuf.h"
 #include "cmDocumentation.h"
 #include "cmDocumentationEntry.h"
 #include "cmDocumentationFormatter.h"
@@ -27,10 +28,6 @@
 #include "cmSystemTools.h"
 #include "cmake.h"
 
-#if defined(_WIN32) && !defined(CMAKE_BOOTSTRAP)
-#  include "cmsys/ConsoleBuf.hxx"
-#endif
-
 namespace {
 const char* cmDocumentationName[][2] = {
   { nullptr, "  cpack - Packaging driver provided by CMake." },
@@ -103,13 +100,11 @@ void cpackProgressCallback(const std::string& message, float /*unused*/)
 int main(int argc, char const* const* argv)
 {
   cmSystemTools::EnsureStdPipes();
-#if defined(_WIN32) && !defined(CMAKE_BOOTSTRAP)
+
   // Replace streambuf so we can output Unicode to console
-  cmsys::ConsoleBuf::Manager consoleOut(std::cout);
-  consoleOut.SetUTF8Pipes();
-  cmsys::ConsoleBuf::Manager consoleErr(std::cerr, true);
-  consoleErr.SetUTF8Pipes();
-#endif
+  cmConsoleBuf consoleBuf;
+  consoleBuf.SetUTF8Pipes();
+
   cmsys::Encoding::CommandLineArguments args =
     cmsys::Encoding::CommandLineArguments::Main(argc, argv);
   argc = args.argc();

Source/cmConsoleBuf.cxx

@@ -0,0 +1,23 @@
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
+#include "cmConsoleBuf.h"
+
+#if defined(_WIN32) && !defined(CMAKE_BOOTSTRAP)
+cmConsoleBuf::cmConsoleBuf()
+  : m_ConsoleOut(std::cout)
+  , m_ConsoleErr(std::cerr, true)
+{
+}
+#else
+cmConsoleBuf::cmConsoleBuf() = default;
+#endif
+
+cmConsoleBuf::~cmConsoleBuf() = default;
+
+void cmConsoleBuf::SetUTF8Pipes()
+{
+#if defined(_WIN32) && !defined(CMAKE_BOOTSTRAP)
+  m_ConsoleOut.SetUTF8Pipes();
+  m_ConsoleErr.SetUTF8Pipes();
+#endif
+}

Source/cmConsoleBuf.h

@@ -0,0 +1,23 @@
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
+#pragma once
+
+#include "cmConfigure.h" // IWYU pragma: keep
+
+#if defined(_WIN32) && !defined(CMAKE_BOOTSTRAP)
+#  include "cmsys/ConsoleBuf.hxx"
+#endif
+
+class cmConsoleBuf
+{
+#if defined(_WIN32) && !defined(CMAKE_BOOTSTRAP)
+  cmsys::ConsoleBuf::Manager m_ConsoleOut;
+  cmsys::ConsoleBuf::Manager m_ConsoleErr;
+#endif
+public:
+  cmConsoleBuf();
+  ~cmConsoleBuf();
+  cmConsoleBuf(cmConsoleBuf const&) = delete;
+  cmConsoleBuf& operator=(cmConsoleBuf const&) = delete;
+  void SetUTF8Pipes();
+};

Source/cmakemain.cxx

@@ -15,6 +15,7 @@
 
 #include <cm3p/uv.h>
 
+#include "cmConsoleBuf.h"
 #include "cmDocumentationEntry.h" // IWYU pragma: keep
 #include "cmGlobalGenerator.h"
 #include "cmMakefile.h"
@@ -32,9 +33,6 @@
 #endif
 
 #include "cmsys/Encoding.hxx"
-#if defined(_WIN32) && !defined(CMAKE_BOOTSTRAP)
-#  include "cmsys/ConsoleBuf.hxx"
-#endif
 
 namespace {
 #ifndef CMAKE_BOOTSTRAP
@@ -687,13 +685,11 @@ int do_open(int ac, char const* const* av)
 int main(int ac, char const* const* av)
 {
   cmSystemTools::EnsureStdPipes();
-#if defined(_WIN32) && !defined(CMAKE_BOOTSTRAP)
+
   // Replace streambuf so we can output Unicode to console
-  cmsys::ConsoleBuf::Manager consoleOut(std::cout);
-  consoleOut.SetUTF8Pipes();
-  cmsys::ConsoleBuf::Manager consoleErr(std::cerr, true);
-  consoleErr.SetUTF8Pipes();
-#endif
+  cmConsoleBuf consoleBuf;
+  consoleBuf.SetUTF8Pipes();
+
   cmsys::Encoding::CommandLineArguments args =
     cmsys::Encoding::CommandLineArguments::Main(ac, av);
   ac = args.argc();

Source/cmcmd.cxx

@@ -7,6 +7,7 @@
 #include <cm3p/uv.h>
 #include <fcntl.h>
 
+#include "cmConsoleBuf.h"
 #include "cmDuration.h"
 #include "cmGlobalGenerator.h"
 #include "cmLocalGenerator.h"
@@ -33,10 +34,6 @@
 #  include "bindexplib.h"
 #endif
 
-#if !defined(CMAKE_BOOTSTRAP) && defined(_WIN32)
-#  include "cmsys/ConsoleBuf.hxx"
-#endif
-
 #if !defined(CMAKE_BOOTSTRAP) && defined(_WIN32) && !defined(__CYGWIN__)
 #  include "cmVisualStudioWCEPlatformParser.h"
 #endif
@@ -1863,14 +1860,11 @@ private:
 // still works.
 int cmcmd::VisualStudioLink(std::vector<std::string> const& args, int type)
 {
-#if defined(_WIN32) && !defined(CMAKE_BOOTSTRAP)
   // Replace streambuf so we output in the system codepage. CMake is set up
   // to output in Unicode (see SetUTF8Pipes) but the Visual Studio linker
   // outputs using the system codepage so we need to change behavior when
   // we run the link command.
-  cmsys::ConsoleBuf::Manager consoleOut(std::cout);
-  cmsys::ConsoleBuf::Manager consoleErr(std::cerr, true);
-#endif
+  cmConsoleBuf consoleBuf;
 
   if (args.size() < 2) {
     return -1;

Source/ctest.cxx

@@ -9,14 +9,12 @@
 #include "cmsys/Encoding.hxx"
 
 #include "cmCTest.h"
+#include "cmConsoleBuf.h"
 #include "cmDocumentation.h"
 #include "cmSystemTools.h"
 
 #include "CTest/cmCTestLaunch.h"
 #include "CTest/cmCTestScriptHandler.h"
-#if defined(_WIN32) && !defined(CMAKE_BOOTSTRAP)
-#  include "cmsys/ConsoleBuf.hxx"
-#endif
 
 static const char* cmDocumentationName[][2] = {
   { nullptr, "  ctest - Testing driver provided by CMake." },
@@ -155,13 +153,11 @@ static const char* cmDocumentationOptions[][2] = {
 int main(int argc, char const* const* argv)
 {
   cmSystemTools::EnsureStdPipes();
-#if defined(_WIN32) && !defined(CMAKE_BOOTSTRAP)
+
   // Replace streambuf so we can output Unicode to console
-  cmsys::ConsoleBuf::Manager consoleOut(std::cout);
-  consoleOut.SetUTF8Pipes();
-  cmsys::ConsoleBuf::Manager consoleErr(std::cerr, true);
-  consoleErr.SetUTF8Pipes();
-#endif
+  cmConsoleBuf consoleBuf;
+  consoleBuf.SetUTF8Pipes();
+
   cmsys::Encoding::CommandLineArguments encoding_args =
     cmsys::Encoding::CommandLineArguments::Main(argc, argv);
   argc = encoding_args.argc();

bootstrap

@@ -299,6 +299,7 @@ CMAKE_CXX_SOURCES="\
   cmComputeLinkDepends \
   cmComputeLinkInformation \
   cmComputeTargetDepends \
+  cmConsoleBuf \
   cmConditionEvaluator \
   cmConfigureFileCommand \
   cmContinueCommand \