Merge topic 'cmake-gui-capture-output'

209cd475 Help: Add notes for topic 'cmake-gui-capture-output'
d7c69246 execute_process: Send stderr through cmSystemTools::Stderr
92ddf0c9 cmake-gui: Capture cmSystemTools::Stdout and Stderr
f52b5ae3 cmSystemTools: Add callback for Stderr
a9ae1d7a cmSystemTools: Simplify InterruptCallback definition
73b13f56 cmSystemTools: Rename ErrorCallback to MessageCallback
7577a542 cmCTestBuildAndTestHandler: Refactor output capture
b1b4d761 cmCTestBuildAndTestHandler: Refactor local loop var

9 files changed, 117 insertions, 73 deletions

diff --git a/Help/release/dev/cmake-gui-capture-output.rst b/Help/release/dev/cmake-gui-capture-output.rst
new file mode 100644
index 0000000..40cd25e
--- /dev/null
+++ b/Help/release/dev/cmake-gui-capture-output.rst
@@ -0,0 +1,6 @@
+cmake-gui-capture-output
+------------------------
+
+* The :manual:`cmake-gui(1)` learned to capture output from child
+  processes started by the :command:`execute_process` command
+  and display it in the output window.
diff --git a/Source/CTest/cmCTestBuildAndTestHandler.cxx b/Source/CTest/cmCTestBuildAndTestHandler.cxx
index 4a3eec5..b4818be 100644
--- a/Source/CTest/cmCTestBuildAndTestHandler.cxx
+++ b/Source/CTest/cmCTestBuildAndTestHandler.cxx
@@ -156,34 +156,36 @@ void CMakeProgressCallback(const char*msg, float , void * s)
 }
 
 //----------------------------------------------------------------------
-void CMakeStdoutCallback(const char* m, int len, void* s)
+void CMakeOutputCallback(const char* m, size_t len, void* s)
 {
   std::string* out = (std::string*)s;
   out->append(m, len);
 }
-struct cmSetupOutputCaptureCleanup
+
+//----------------------------------------------------------------------
+class cmCTestBuildAndTestCaptureRAII
 {
-  ~cmSetupOutputCaptureCleanup()
-  {
-    cmSystemTools::SetErrorCallback(0, 0);
+  cmake& CM;
+public:
+  cmCTestBuildAndTestCaptureRAII(cmake& cm, std::string& s): CM(cm)
+    {
+    cmSystemTools::SetMessageCallback(CMakeMessageCallback, &s);
+    cmSystemTools::SetStdoutCallback(CMakeOutputCallback, &s);
+    cmSystemTools::SetStderrCallback(CMakeOutputCallback, &s);
+    this->CM.SetProgressCallback(CMakeProgressCallback, &s);
+    }
+  ~cmCTestBuildAndTestCaptureRAII()
+    {
+    this->CM.SetProgressCallback(0, 0);
+    cmSystemTools::SetStderrCallback(0, 0);
     cmSystemTools::SetStdoutCallback(0, 0);
-  }
+    cmSystemTools::SetMessageCallback(0, 0);
+    }
 };
 
 //----------------------------------------------------------------------
 int cmCTestBuildAndTestHandler::RunCMakeAndTest(std::string* outstring)
 {
-  unsigned int k;
-  std::string cmakeOutString;
-  cmSystemTools::SetErrorCallback(CMakeMessageCallback, &cmakeOutString);
-  cmSystemTools::SetStdoutCallback(CMakeStdoutCallback, &cmakeOutString);
-  // make sure SetStdoutCallback and SetErrorCallback are set to null
-  // after this function exits so that they do not point at a destroyed
-  // string cmakeOutString
-  cmSetupOutputCaptureCleanup cleanup;
-  static_cast<void>(cleanup);
-  cmOStringStream out;
-
   // if the generator and make program are not specified then it is an error
   if (!this->BuildGenerator.size())
     {
@@ -197,6 +199,12 @@ int cmCTestBuildAndTestHandler::RunCMakeAndTest(std::string* outstring)
     return 1;
     }
 
+  cmake cm;
+  std::string cmakeOutString;
+  cmCTestBuildAndTestCaptureRAII captureRAII(cm, cmakeOutString);
+  static_cast<void>(captureRAII);
+  cmOStringStream out;
+
   if ( this->CTest->GetConfigType().size() == 0 &&
        this->ConfigSample.size())
     {
@@ -233,10 +241,6 @@ int cmCTestBuildAndTestHandler::RunCMakeAndTest(std::string* outstring)
     }
   cmSystemTools::ChangeDirectory(this->BinaryDir.c_str());
 
-  // should we cmake?
-  cmake cm;
-  cm.SetProgressCallback(CMakeProgressCallback, &cmakeOutString);
-
   if(this->BuildNoCMake)
     {
     // Make the generator available for the Build call below.
@@ -369,7 +373,7 @@ int cmCTestBuildAndTestHandler::RunCMakeAndTest(std::string* outstring)
 
   std::vector<const char*> testCommand;
   testCommand.push_back(fullPath.c_str());
-  for(k=0; k < this->TestCommandArgs.size(); ++k)
+  for(size_t k=0; k < this->TestCommandArgs.size(); ++k)
     {
     testCommand.push_back(this->TestCommandArgs[k].c_str());
     }
@@ -383,7 +387,7 @@ int cmCTestBuildAndTestHandler::RunCMakeAndTest(std::string* outstring)
     cmSystemTools::ChangeDirectory(this->BuildRunDir.c_str());
     }
   out << "Running test command: \"" << fullPath << "\"";
-  for(k=0; k < this->TestCommandArgs.size(); ++k)
+  for(size_t k=0; k < this->TestCommandArgs.size(); ++k)
     {
     out << " \"" << this->TestCommandArgs[k] << "\"";
     }
diff --git a/Source/CursesDialog/ccmake.cxx b/Source/CursesDialog/ccmake.cxx
index 2d1ef5c..d70bedb 100644
--- a/Source/CursesDialog/ccmake.cxx
+++ b/Source/CursesDialog/ccmake.cxx
@@ -73,7 +73,8 @@ void onsig(int)
 
 }
 
-void CMakeErrorHandler(const char* message, const char* title, bool&, void* clientData)
+void CMakeMessageHandler(const char* message, const char* title, bool&,
+                         void* clientData)
 {
   cmCursesForm* self = static_cast<cmCursesForm*>( clientData );
   self->AddError(message, title);
@@ -171,7 +172,7 @@ int main(int argc, char const* const* argv)
     return 1;
     }
 
-  cmSystemTools::SetErrorCallback(CMakeErrorHandler, myform);
+  cmSystemTools::SetMessageCallback(CMakeMessageHandler, myform);
 
   cmCursesForm::CurrentForm = myform;
 
diff --git a/Source/QtDialog/QCMake.cxx b/Source/QtDialog/QCMake.cxx
index 5f9ebaf..b833648 100644
--- a/Source/QtDialog/QCMake.cxx
+++ b/Source/QtDialog/QCMake.cxx
@@ -35,7 +35,9 @@ QCMake::QCMake(QObject* p)
 
   cmSystemTools::DisableRunCommandOutput();
   cmSystemTools::SetRunCommandHideConsole(true);
-  cmSystemTools::SetErrorCallback(QCMake::errorCallback, this);
+  cmSystemTools::SetMessageCallback(QCMake::messageCallback, this);
+  cmSystemTools::SetStdoutCallback(QCMake::stdoutCallback, this);
+  cmSystemTools::SetStderrCallback(QCMake::stderrCallback, this);
 
   this->CMakeInstance = new cmake;
   this->CMakeInstance->SetCMakeEditCommand(
@@ -348,14 +350,28 @@ void QCMake::progressCallback(const char* msg, float percent, void* cd)
   QCoreApplication::processEvents();
 }
 
-void QCMake::errorCallback(const char* msg, const char* /*title*/,
-                           bool& /*stop*/, void* cd)
+void QCMake::messageCallback(const char* msg, const char* /*title*/,
+                             bool& /*stop*/, void* cd)
 {
   QCMake* self = reinterpret_cast<QCMake*>(cd);
   emit self->errorMessage(QString::fromLocal8Bit(msg));
   QCoreApplication::processEvents();
 }
 
+void QCMake::stdoutCallback(const char* msg, size_t len, void* cd)
+{
+  QCMake* self = reinterpret_cast<QCMake*>(cd);
+  emit self->outputMessage(QString::fromLocal8Bit(msg,int(len)));
+  QCoreApplication::processEvents();
+}
+
+void QCMake::stderrCallback(const char* msg, size_t len, void* cd)
+{
+  QCMake* self = reinterpret_cast<QCMake*>(cd);
+  emit self->outputMessage(QString::fromLocal8Bit(msg,int(len)));
+  QCoreApplication::processEvents();
+}
+
 QString QCMake::binaryDirectory() const
 {
   return this->BinaryDirectory;
diff --git a/Source/QtDialog/QCMake.h b/Source/QtDialog/QCMake.h
index 93ac8ab..bd82f0d 100644
--- a/Source/QtDialog/QCMake.h
+++ b/Source/QtDialog/QCMake.h
@@ -136,8 +136,10 @@ protected:
 
   static bool interruptCallback(void*);
   static void progressCallback(const char* msg, float percent, void* cd);
-  static void errorCallback(const char* msg, const char* title,
-                            bool&, void* cd);
+  static void messageCallback(const char* msg, const char* title,
+                              bool&, void* cd);
+  static void stdoutCallback(const char* msg, size_t len, void* cd);
+  static void stderrCallback(const char* msg, size_t len, void* cd);
   bool SuppressDevWarnings;
   bool WarnUninitializedMode;
   bool WarnUnusedMode;
diff --git a/Source/cmExecuteProcessCommand.cxx b/Source/cmExecuteProcessCommand.cxx
index 40f70b8..11f8ae5 100644
--- a/Source/cmExecuteProcessCommand.cxx
+++ b/Source/cmExecuteProcessCommand.cxx
@@ -256,10 +256,6 @@ bool cmExecuteProcessCommand
 
   // Check the output variables.
   bool merge_output = (output_variable == error_variable);
-  if(error_variable.empty() && !error_quiet)
-    {
-    cmsysProcess_SetPipeShared(cp, cmsysProcess_Pipe_STDERR, 1);
-    }
   if(!input_file.empty())
     {
     cmsysProcess_SetPipeFile(cp, cmsysProcess_Pipe_STDIN, input_file.c_str());
@@ -307,7 +303,11 @@ bool cmExecuteProcessCommand
       }
     else if(p == cmsysProcess_Pipe_STDERR && !error_quiet)
       {
-      if(!error_variable.empty())
+      if(error_variable.empty())
+        {
+        cmSystemTools::Stderr(data, length);
+        }
+      else
         {
         cmExecuteProcessCommandAppend(tempError, data, length);
         }
diff --git a/Source/cmSystemTools.cxx b/Source/cmSystemTools.cxx
index c38a99c..2e417cb 100644
--- a/Source/cmSystemTools.cxx
+++ b/Source/cmSystemTools.cxx
@@ -121,13 +121,14 @@ bool cmSystemTools::s_FatalErrorOccured = false;
 bool cmSystemTools::s_DisableMessages = false;
 bool cmSystemTools::s_ForceUnixPaths = false;
 
-void (*cmSystemTools::s_ErrorCallback)(const char*, const char*,
-                                       bool&, void*);
-void (*cmSystemTools::s_StdoutCallback)(const char*, int len, void*);
-void* cmSystemTools::s_ErrorCallbackClientData = 0;
-void* cmSystemTools::s_StdoutCallbackClientData = 0;
-bool (*cmSystemTools::s_InterruptCallback)(void*);
-void* cmSystemTools::s_InterruptCallbackClientData = 0;
+cmSystemTools::MessageCallback cmSystemTools::s_MessageCallback;
+cmSystemTools::OutputCallback cmSystemTools::s_StdoutCallback;
+cmSystemTools::OutputCallback cmSystemTools::s_StderrCallback;
+cmSystemTools::InterruptCallback cmSystemTools::s_InterruptCallback;
+void* cmSystemTools::s_MessageCallbackClientData;
+void* cmSystemTools::s_StdoutCallbackClientData;
+void* cmSystemTools::s_StderrCallbackClientData;
+void* cmSystemTools::s_InterruptCallbackClientData;
 
 // replace replace with with as many times as it shows up in source.
 // write the result into source.
@@ -254,39 +255,48 @@ bool cmSystemTools::GetInterruptFlag()
   return false;
 }
 
-void cmSystemTools::SetErrorCallback(ErrorCallback f, void* clientData)
+void cmSystemTools::SetMessageCallback(MessageCallback f, void* clientData)
 {
-  s_ErrorCallback = f;
-  s_ErrorCallbackClientData = clientData;
+  s_MessageCallback = f;
+  s_MessageCallbackClientData = clientData;
 }
 
-void cmSystemTools::SetStdoutCallback(StdoutCallback f, void* clientData)
+void cmSystemTools::SetStdoutCallback(OutputCallback f, void* clientData)
 {
   s_StdoutCallback = f;
   s_StdoutCallbackClientData = clientData;
 }
 
+void cmSystemTools::SetStderrCallback(OutputCallback f, void* clientData)
+{
+  s_StderrCallback = f;
+  s_StderrCallbackClientData = clientData;
+}
+
 void cmSystemTools::Stdout(const char* s)
 {
-  if(s_StdoutCallback)
+  cmSystemTools::Stdout(s, strlen(s));
+}
+
+void cmSystemTools::Stderr(const char* s)
+{
+  cmSystemTools::Stderr(s, strlen(s));
+}
+
+void cmSystemTools::Stderr(const char* s, size_t length)
+{
+  if(s_StderrCallback)
     {
-    (*s_StdoutCallback)(s, static_cast<int>(strlen(s)),
-                        s_StdoutCallbackClientData);
+    (*s_StderrCallback)(s, length, s_StderrCallbackClientData);
     }
   else
     {
-    std::cout << s;
-    std::cout.flush();
-    }
-}
-
-void cmSystemTools::Stderr(const char* s, int length)
-{
     std::cerr.write(s, length);
     std::cerr.flush();
+    }
 }
 
-void cmSystemTools::Stdout(const char* s, int length)
+void cmSystemTools::Stdout(const char* s, size_t length)
 {
   if(s_StdoutCallback)
     {
@@ -305,10 +315,10 @@ void cmSystemTools::Message(const char* m1, const char *title)
     {
     return;
     }
-  if(s_ErrorCallback)
+  if(s_MessageCallback)
     {
-    (*s_ErrorCallback)(m1, title, s_DisableMessages,
-                       s_ErrorCallbackClientData);
+    (*s_MessageCallback)(m1, title, s_DisableMessages,
+                         s_MessageCallbackClientData);
     return;
     }
   else
diff --git a/Source/cmSystemTools.h b/Source/cmSystemTools.h
index 27b4bce..4455dd1 100644
--- a/Source/cmSystemTools.h
+++ b/Source/cmSystemTools.h
@@ -57,14 +57,14 @@ public:
    */
   static std::string TrimWhitespace(const std::string& s);
 
-  typedef  void (*ErrorCallback)(const char*, const char*, bool&, void*);
+  typedef void (*MessageCallback)(const char*, const char*, bool&, void*);
   /**
    *  Set the function used by GUIs to display error messages
    *  Function gets passed: message as a const char*,
    *  title as a const char*, and a reference to bool that when
    *  set to false, will disable furthur messages (cancel).
    */
-  static void SetErrorCallback(ErrorCallback f, void* clientData=0);
+  static void SetMessageCallback(MessageCallback f, void* clientData=0);
 
   /**
    * Display an error message.
@@ -77,14 +77,17 @@ public:
    */
   static void Message(const char* m, const char* title=0);
 
+  typedef void (*OutputCallback)(const char*, size_t length, void*);
+
   ///! Send a string to stdout
   static void Stdout(const char* s);
-  static void Stdout(const char* s, int length);
-  typedef  void (*StdoutCallback)(const char*, int length, void*);
-  static void SetStdoutCallback(StdoutCallback, void* clientData=0);
+  static void Stdout(const char* s, size_t length);
+  static void SetStdoutCallback(OutputCallback, void* clientData=0);
 
-  ///! Send a string to stderr. Stdout callbacks will not be invoced.
-  static void Stderr(const char* s, int length);
+  ///! Send a string to stderr
+  static void Stderr(const char* s);
+  static void Stderr(const char* s, size_t length);
+  static void SetStderrCallback(OutputCallback, void* clientData=0);
 
 
   typedef bool (*InterruptCallback)(void*);
@@ -470,11 +473,13 @@ private:
   static bool s_FatalErrorOccured;
   static bool s_DisableMessages;
   static bool s_DisableRunCommandOutput;
-  static ErrorCallback s_ErrorCallback;
-  static StdoutCallback s_StdoutCallback;
+  static MessageCallback s_MessageCallback;
+  static OutputCallback s_StdoutCallback;
+  static OutputCallback s_StderrCallback;
   static InterruptCallback s_InterruptCallback;
-  static void* s_ErrorCallbackClientData;
+  static void* s_MessageCallbackClientData;
   static void* s_StdoutCallbackClientData;
+  static void* s_StderrCallbackClientData;
   static void* s_InterruptCallbackClientData;
 };
 
diff --git a/Source/cmakemain.cxx b/Source/cmakemain.cxx
index fcaa127..77f1e4e 100644
--- a/Source/cmakemain.cxx
+++ b/Source/cmakemain.cxx
@@ -129,8 +129,8 @@ static std::string cmakemainGetStack(void *clientdata)
   return msg;
 }
 
-static void cmakemainErrorCallback(const char* m, const char*, bool&,
-                                   void *clientdata)
+static void cmakemainMessageCallback(const char* m, const char*, bool&,
+                                     void *clientdata)
 {
   std::cerr << m << cmakemainGetStack(clientdata) << std::endl << std::flush;
 }
@@ -310,7 +310,7 @@ int do_cmake(int ac, char const* const* av)
     return ret;
     }
   cmake cm;
-  cmSystemTools::SetErrorCallback(cmakemainErrorCallback, (void *)&cm);
+  cmSystemTools::SetMessageCallback(cmakemainMessageCallback, (void *)&cm);
   cm.SetProgressCallback(cmakemainProgressCallback, (void *)&cm);
   cm.SetWorkingMode(workingMode);