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-rw-r--r--Source/cmVariableWatchCommand.cxx140
1 files changed, 140 insertions, 0 deletions
diff --git a/Source/cmVariableWatchCommand.cxx b/Source/cmVariableWatchCommand.cxx
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+/*============================================================================
+ CMake - Cross Platform Makefile Generator
+ Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
+
+ Distributed under the OSI-approved BSD License (the "License");
+ see accompanying file Copyright.txt for details.
+
+ This software is distributed WITHOUT ANY WARRANTY; without even the
+ implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ See the License for more information.
+============================================================================*/
+#include "cmVariableWatchCommand.h"
+
+#include "cmVariableWatch.h"
+
+//----------------------------------------------------------------------------
+static void cmVariableWatchCommandVariableAccessed(
+ const std::string& variable, int access_type, void* client_data,
+ const char* newValue, const cmMakefile* mf)
+{
+ cmVariableWatchCommand* command
+ = static_cast<cmVariableWatchCommand*>(client_data);
+ command->VariableAccessed(variable, access_type, newValue, mf);
+}
+
+//----------------------------------------------------------------------------
+cmVariableWatchCommand::cmVariableWatchCommand()
+{
+ this->InCallback = false;
+}
+
+//----------------------------------------------------------------------------
+bool cmVariableWatchCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
+{
+ if ( args.size() < 1 )
+ {
+ this->SetError("must be called with at least one argument.");
+ return false;
+ }
+ std::string variable = args[0];
+ if ( args.size() > 1 )
+ {
+ std::string command = args[1];
+ this->Handlers[variable].Commands.push_back(args[1]);
+ }
+ if ( variable == "CMAKE_CURRENT_LIST_FILE" )
+ {
+ cmOStringStream ostr;
+ ostr << "cannot be set on the variable: " << variable.c_str();
+ this->SetError(ostr.str().c_str());
+ return false;
+ }
+
+ this->Makefile->GetCMakeInstance()->GetVariableWatch()->AddWatch(
+ variable, cmVariableWatchCommandVariableAccessed, this);
+
+ return true;
+}
+
+//----------------------------------------------------------------------------
+void cmVariableWatchCommand::VariableAccessed(const std::string& variable,
+ int access_type, const char* newValue, const cmMakefile* mf)
+{
+ if ( this->InCallback )
+ {
+ return;
+ }
+ this->InCallback = true;
+
+ cmListFileFunction newLFF;
+ cmVariableWatchCommandHandler *handler = &this->Handlers[variable];
+ cmVariableWatchCommandHandler::VectorOfCommands::iterator it;
+ cmListFileArgument arg;
+ bool processed = false;
+ const char* accessString = cmVariableWatch::GetAccessAsString(access_type);
+ const char* currentListFile = mf->GetDefinition("CMAKE_CURRENT_LIST_FILE");
+
+ /// Ultra bad!!
+ cmMakefile* makefile = const_cast<cmMakefile*>(mf);
+
+ std::string stack = makefile->GetProperty("LISTFILE_STACK");
+ for ( it = handler->Commands.begin(); it != handler->Commands.end();
+ ++ it )
+ {
+ std::string command = *it;
+ newLFF.Arguments.clear();
+ newLFF.Arguments.push_back(
+ cmListFileArgument(variable, true, "unknown", 9999));
+ newLFF.Arguments.push_back(
+ cmListFileArgument(accessString, true, "unknown", 9999));
+ newLFF.Arguments.push_back(
+ cmListFileArgument(newValue?newValue:"", true, "unknown", 9999));
+ newLFF.Arguments.push_back(
+ cmListFileArgument(currentListFile, true, "unknown", 9999));
+ newLFF.Arguments.push_back(
+ cmListFileArgument(stack, true, "unknown", 9999));
+ newLFF.Name = command;
+ newLFF.FilePath = "Some weird path";
+ newLFF.Line = 9999;
+ cmExecutionStatus status;
+ if(!makefile->ExecuteCommand(newLFF,status))
+ {
+ arg.FilePath = "Unknown";
+ arg.Line = 0;
+ cmOStringStream error;
+ error << "Error in cmake code at\n"
+ << arg.FilePath << ":" << arg.Line << ":\n"
+ << "A command failed during the invocation of callback\""
+ << command << "\".";
+ cmSystemTools::Error(error.str().c_str());
+ this->InCallback = false;
+ return;
+ }
+ processed = true;
+ }
+ if ( !processed )
+ {
+ cmOStringStream msg;
+ msg << "* Variable \"" << variable.c_str() << "\" was accessed using "
+ << accessString << " in: " << currentListFile << std::endl;
+ msg << " The value of the variable: \"" << newValue << "\"" << std::endl;
+ msg << " The list file stack: " << stack.c_str();
+ cmSystemTools::Message(msg.str().c_str());
+ std::vector<std::string> vars = makefile->GetDefinitions();
+ cmOStringStream msg2;
+ size_t cc;
+ for ( cc = 0; cc < vars.size(); cc ++ )
+ {
+ if ( vars[cc] == variable )
+ {
+ continue;
+ }
+ msg2 << vars[cc] << " = \""
+ << makefile->GetDefinition(vars[cc].c_str()) << "\"" << std::endl;
+ }
+ //cmSystemTools::Message(msg2.str().c_str());
+ }
+ this->InCallback = false;
+}