ENH: Enabling color makefile support using cmsysTerminal_cfprintf. Support for color is automatically detected when messages are printed. Also made color scheme more readable on both black and white backgrounds. This option can be enabled by setting CMAKE_COLOR_MAKEFILE to true in the project.

Source/cmGlobalBorlandMakefileGenerator.cxx

@@ -24,7 +24,7 @@ cmGlobalBorlandMakefileGenerator::cmGlobalBorlandMakefileGenerator()
   this->EmptyRuleHackDepends = "NUL";
   this->FindMakeProgramFile = "CMakeBorlandFindMake.cmake";
   this->ForceUnixPaths = false;
-  this->ToolSupportsColorVT100 = false;
+  this->ToolSupportsColor = true;
 }
 
 

Source/cmGlobalGenerator.cxx

@@ -35,7 +35,7 @@ cmGlobalGenerator::cmGlobalGenerator()
   this->ForceUnixPaths = false;
 
   // By default do not try to support color.
-  this->ToolSupportsColorVT100 = false;
+  this->ToolSupportsColor = false;
 }
 
 cmGlobalGenerator::~cmGlobalGenerator()

Source/cmGlobalGenerator.h

@@ -127,7 +127,7 @@ public:
   static int s_TryCompileTimeout;
   
   bool GetForceUnixPaths() {return this->ForceUnixPaths;}
-  bool GetToolSupportsColorVT100() { return this->ToolSupportsColorVT100; }
+  bool GetToolSupportsColor() { return this->ToolSupportsColor; }
   ///! return the language for the given extension
   const char* GetLanguageFromExtension(const char* ext);
   ///! is an extension to be ignored
@@ -204,7 +204,7 @@ protected:
     std::vector<std::string> depends, bool depends_on_all = false);
 
   bool ForceUnixPaths;
-  bool ToolSupportsColorVT100;
+  bool ToolSupportsColor;
   cmStdString FindMakeProgramFile;
   cmStdString ConfiguredFilesPath;
   cmake *CMakeInstance;

Source/cmGlobalKdevelopGenerator.cxx

@@ -28,7 +28,7 @@ cmGlobalKdevelopGenerator::cmGlobalKdevelopGenerator()
   // This type of makefile always requires unix style paths
   this->ForceUnixPaths = true;
   this->FindMakeProgramFile = "CMakeUnixFindMake.cmake";
-  this->ToolSupportsColorVT100 = false;
+  this->ToolSupportsColor = false;
 }
 
 ///! Create a local generator appropriate to this Global Generator

Source/cmGlobalMSYSMakefileGenerator.cxx

@@ -23,7 +23,7 @@ cmGlobalMSYSMakefileGenerator::cmGlobalMSYSMakefileGenerator()
 {
   this->FindMakeProgramFile = "CMakeMSYSFindMake.cmake";
   this->ForceUnixPaths = true;
-  this->ToolSupportsColorVT100 = true;
+  this->ToolSupportsColor = true;
 }
 
 std::string 

Source/cmGlobalMinGWMakefileGenerator.cxx

@@ -22,7 +22,7 @@ cmGlobalMinGWMakefileGenerator::cmGlobalMinGWMakefileGenerator()
 {
   this->FindMakeProgramFile = "CMakeMinGWFindMake.cmake";
   this->ForceUnixPaths = true;
-  this->ToolSupportsColorVT100 = false;
+  this->ToolSupportsColor = true;
 }
 
 void cmGlobalMinGWMakefileGenerator::EnableLanguage(std::vector<std::string>const& l,

Source/cmGlobalNMakeMakefileGenerator.cxx

@@ -22,7 +22,7 @@ cmGlobalNMakeMakefileGenerator::cmGlobalNMakeMakefileGenerator()
 {
   this->FindMakeProgramFile = "CMakeNMakeFindMake.cmake";
   this->ForceUnixPaths = false;
-  this->ToolSupportsColorVT100 = false;
+  this->ToolSupportsColor = true;
 }
 
 void cmGlobalNMakeMakefileGenerator::EnableLanguage(std::vector<std::string>const& l,

Source/cmGlobalUnixMakefileGenerator3.cxx

@@ -26,7 +26,7 @@ cmGlobalUnixMakefileGenerator3::cmGlobalUnixMakefileGenerator3()
   // This type of makefile always requires unix style paths
   this->ForceUnixPaths = true;
   this->FindMakeProgramFile = "CMakeUnixFindMake.cmake";
-  this->ToolSupportsColorVT100 = true;
+  this->ToolSupportsColor = true;
 }
 
 void cmGlobalUnixMakefileGenerator3

Source/cmGlobalWatcomWMakeGenerator.cxx

@@ -22,7 +22,7 @@ cmGlobalWatcomWMakeGenerator::cmGlobalWatcomWMakeGenerator()
 {
   this->FindMakeProgramFile = "CMakeFindWMake.cmake";
   this->ForceUnixPaths = false;
-  this->ToolSupportsColorVT100 = false;
+  this->ToolSupportsColor = true;
   this->EmptyCommandsHack = "@cd .";
 }
 

Source/cmLocalUnixMakefileGenerator3.cxx

@@ -35,28 +35,6 @@
 #include <memory> // auto_ptr
 #include <queue>
 
-#define CMAKE_VT100_NORMAL        "\33[0m"
-#define CMAKE_VT100_BOLD          "\33[1m"
-#define CMAKE_VT100_UNDERLINE     "\33[4m"
-#define CMAKE_VT100_BLINK         "\33[5m"
-#define CMAKE_VT100_INVERSE       "\33[7m"
-#define CMAKE_VT100_FRONT_BLACK   "\33[30m"
-#define CMAKE_VT100_FRONT_RED     "\33[31m"
-#define CMAKE_VT100_FRONT_GREEN   "\33[32m"
-#define CMAKE_VT100_FRONT_YELLOW  "\33[33m"
-#define CMAKE_VT100_FRONT_BLUE    "\33[34m"
-#define CMAKE_VT100_FRONT_MAGENTA "\33[35m"
-#define CMAKE_VT100_FRONT_CYAN    "\33[36m"
-#define CMAKE_VT100_FRONT_WHITE   "\33[37m"
-#define CMAKE_VT100_BACK_BLACK    "\33[40m"
-#define CMAKE_VT100_BACK_RED      "\33[41m"
-#define CMAKE_VT100_BACK_GREEN    "\33[42m"
-#define CMAKE_VT100_BACK_YELLOW   "\33[43m"
-#define CMAKE_VT100_BACK_BLUE     "\33[44m"
-#define CMAKE_VT100_BACK_MAGENTA  "\33[45m"
-#define CMAKE_VT100_BACK_CYAN     "\33[46m"
-#define CMAKE_VT100_BACK_WHITE    "\33[47m"
-
 //----------------------------------------------------------------------------
 cmLocalUnixMakefileGenerator3::cmLocalUnixMakefileGenerator3()
 {
@@ -876,32 +854,33 @@ cmLocalUnixMakefileGenerator3::AppendEcho(std::vector<std::string>& commands,
                                           EchoColor color)
 {
   // Choose the color for the text.
-  std::string prefix;
-  if(this->GlobalGenerator->GetToolSupportsColorVT100() &&
+  std::string color_name;
+  if(this->GlobalGenerator->GetToolSupportsColor() &&
      this->Makefile->IsOn("CMAKE_COLOR_MAKEFILE"))
     {
+    // See cmake::ExecuteEchoColor in cmake.cxx for these options.
+    // This color set is readable on both black and white backgrounds.
     switch(color)
       {
       case EchoNormal:
         break;
       case EchoDepend:
-        prefix = CMAKE_VT100_FRONT_MAGENTA;
+        color_name = "--magenta --bold ";
         break;
       case EchoBuild:
-        prefix = CMAKE_VT100_FRONT_GREEN;
+        color_name = "--green ";
         break;
       case EchoLink:
-        prefix = CMAKE_VT100_FRONT_RED;
+        color_name = "--red --bold ";
         break;
       case EchoGenerate:
-        prefix = CMAKE_VT100_FRONT_BLUE;
+        color_name = "--blue --bold ";
         break;
       case EchoGlobal:
-        prefix = CMAKE_VT100_FRONT_CYAN;
+        color_name = "--cyan ";
         break;
       }
     }
-  std::string suffix = prefix.empty()? "" : CMAKE_VT100_NORMAL;
 
   // Echo one line at a time.
   std::string line;
@@ -914,16 +893,28 @@ cmLocalUnixMakefileGenerator3::AppendEcho(std::vector<std::string>& commands,
       if(*c != '\0' || !line.empty())
         {
         // Add a command to echo this line.
-        std::string cmd = "@echo ";
-        if(this->EchoNeedsQuote)
+        std::string cmd;
+        if(color_name.empty())
           {
-          cmd += "\"";
+          // Use the native echo command.
+          cmd = "@echo ";
+          if(this->EchoNeedsQuote)
+            {
+            cmd += "\"";
+            }
+          cmd += line;
+          if(this->EchoNeedsQuote)
+            {
+            cmd += "\"";
+            }
           }
-        cmd += prefix;
-        cmd += line;
-        cmd += suffix;
-        if(this->EchoNeedsQuote)
+        else
           {
+          // Use cmake to echo the text in color.
+          cmd = "@$(CMAKE_COMMAND) -E cmake_echo_color --switch=$(COLOR) ";
+          cmd += color_name;
+          cmd += "\"";
+          cmd += line;
           cmd += "\"";
           }
         commands.push_back(cmd);

Source/cmake.cxx

@@ -24,6 +24,8 @@
 #include "cmFileTimeComparison.h"
 #include "cmGeneratedFileStream.h"
 
+#include <cmsys/Terminal.h>
+
 #if defined(CMAKE_BUILD_WITH_CMAKE)
 # include "cmDependsFortran.h" // For -E cmake_copy_f90_mod callback.
 # include "cmVariableWatch.h"
@@ -1005,6 +1007,12 @@ int cmake::ExecuteCMakeCommand(std::vector<std::string>& args)
       return 1;
       }
 
+    // Internal CMake color makefile support.
+    else if (args[1] == "cmake_echo_color" )
+      {
+      return cmake::ExecuteEchoColor(args);
+      }
+
     // Tar files
     else if (args[1] == "tar" && args.size() > 3)
       {
@@ -2344,3 +2352,108 @@ void cmake::GenerateGraphViz(const char* fileName)
   str << "}" << std::endl;
 }
 
+//----------------------------------------------------------------------------
+int cmake::ExecuteEchoColor(std::vector<std::string>& args)
+{
+  // The arguments are
+  //   argv[0] == <cmake-executable>
+  //   argv[1] == cmake_echo_color
+
+  // On some platforms (an MSYS prompt) cmsysTerminal may not be able
+  // to determine whether the stream is displayed on a tty.  In this
+  // case it assumes no unless we tell it otherwise.  Since we want
+  // color messages to be displayed for users we will assume yes.
+  // However, we can test for some situations when the answer is most
+  // likely no.
+  int assumeTTY = cmsysTerminal_Color_AssumeTTY;
+  if(cmSystemTools::GetEnv("DART_TEST_FROM_DART") ||
+     cmSystemTools::GetEnv("DASHBOARD_TEST_FROM_CTEST"))
+    {
+    // Avoid printing color escapes during dashboard builds.
+    assumeTTY = 0;
+    }
+
+  bool enabled = true;
+  int color = cmsysTerminal_Color_Normal;
+  bool newline = true;
+  for(unsigned int i=2; i < args.size(); ++i)
+    {
+    if(args[i].find("--switch=") == 0)
+      {
+      // Enable or disable color based on the switch value.
+      std::string value = args[i].substr(9);
+      if(!value.empty())
+        {
+        if(cmSystemTools::IsOn(value.c_str()))
+          {
+          enabled = true;
+          }
+        else
+          {
+          enabled = false;
+          }
+        }
+      }
+    else if(args[i] == "--normal")
+      {
+      color = cmsysTerminal_Color_Normal;
+      }
+    else if(args[i] == "--black")
+      {
+      color = cmsysTerminal_Color_ForegroundBlack;
+      }
+    else if(args[i] == "--red")
+      {
+      color = cmsysTerminal_Color_ForegroundRed;
+      }
+    else if(args[i] == "--green")
+      {
+      color = cmsysTerminal_Color_ForegroundGreen;
+      }
+    else if(args[i] == "--yellow")
+      {
+      color = cmsysTerminal_Color_ForegroundYellow;
+      }
+    else if(args[i] == "--blue")
+      {
+      color = cmsysTerminal_Color_ForegroundBlue;
+      }
+    else if(args[i] == "--magenta")
+      {
+      color = cmsysTerminal_Color_ForegroundMagenta;
+      }
+    else if(args[i] == "--cyan")
+      {
+      color = cmsysTerminal_Color_ForegroundCyan;
+      }
+    else if(args[i] == "--white")
+      {
+      color = cmsysTerminal_Color_ForegroundWhite;
+      }
+    else if(args[i] == "--bold")
+      {
+      color |= cmsysTerminal_Color_ForegroundBold;
+      }
+    else if(args[i] == "--no-newline")
+      {
+      newline = false;
+      }
+    else if(args[i] == "--newline")
+      {
+      newline = true;
+      }
+    else if(enabled)
+      {
+      // Color is enabled.  Print with the current color.
+      cmsysTerminal_cfprintf(color | assumeTTY, stdout, "%s%s",
+                             args[i].c_str(), newline? "\n" : "");
+      }
+    else
+      {
+      // Color is disabled.  Print without color.
+      fprintf(stdout, "%s%s", args[i].c_str(), newline? "\n" : "");
+      }
+    }
+
+  return 0;
+}

Source/cmake.h

@@ -315,6 +315,8 @@ protected:
   void CleanupCommandsAndMacros();
 
   void GenerateGraphViz(const char* fileName);
+
+  static int ExecuteEchoColor(std::vector<std::string>& args);
   
   cmVariableWatch* VariableWatch;