ENH: determine the current system also in cpack, so the search paths are

loaded
Additionally the makefile in cmCPackGenericGenerator is now protected
instead of private, so with these two changes the cpack generators should
now be able to find their tools and how to call these tools from cmake
scripts, instead of hardcoding the search order and command line (as done
e.g. in cmCPackZIPGenerator.cxx)

Alex

Modules/CMakeDetermineSystem.cmake

@@ -124,22 +124,25 @@ ENDMACRO(ADJUST_CMAKE_SYSTEM_VARIABLES _PREFIX)
 ADJUST_CMAKE_SYSTEM_VARIABLES(CMAKE_SYSTEM)
 ADJUST_CMAKE_SYSTEM_VARIABLES(CMAKE_HOST_SYSTEM)
 
-# write entry to the log file
+# this file is also executed from cpack, then we don't need to generate these files 
-IF(PRESET_CMAKE_SYSTEM_NAME)
+# in this case there is no CMAKE_BINARY_DIR
+IF(CMAKE_BINARY_DIR)
+  # write entry to the log file
+  IF(PRESET_CMAKE_SYSTEM_NAME)
     FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log 
                 "The target system is: ${CMAKE_SYSTEM_NAME} - ${CMAKE_SYSTEM_VERSION} - ${CMAKE_SYSTEM_PROCESSOR}\n")
     FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log 
                 "The host system is: ${CMAKE_HOST_SYSTEM_NAME} - ${CMAKE_HOST_SYSTEM_VERSION} - ${CMAKE_HOST_SYSTEM_PROCESSOR}\n")
-ELSE(PRESET_CMAKE_SYSTEM_NAME)
+  ELSE(PRESET_CMAKE_SYSTEM_NAME)
     FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log 
                 "The system is: ${CMAKE_SYSTEM_NAME} - ${CMAKE_SYSTEM_VERSION} - ${CMAKE_SYSTEM_PROCESSOR}\n")
-ENDIF(PRESET_CMAKE_SYSTEM_NAME)
+  ENDIF(PRESET_CMAKE_SYSTEM_NAME)
 
 
-# if a toolchain file is used use configure_file() to copy it into the 
+  # if a toolchain file is used use configure_file() to copy it into the 
-# build tree, because this way e.g. ${CMAKE_SOURCE_DIR} will be replaced
+  # build tree, because this way e.g. ${CMAKE_SOURCE_DIR} will be replaced
-# with its full path, and so it will also work when used in try_compile()
+  # with its full path, and so it will also work when used in try_compile()
-IF (CMAKE_TOOLCHAIN_FILE)
+  IF (CMAKE_TOOLCHAIN_FILE)
 
     SET(_OWN_DIR ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY})
     CONFIGURE_FILE(${CMAKE_TOOLCHAIN_FILE}
@@ -148,11 +151,13 @@ IF (CMAKE_TOOLCHAIN_FILE)
     CONFIGURE_FILE(${CMAKE_ROOT}/Modules/CMakeSystemWithToolchainFile.cmake.in
                 ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeSystem.cmake 
                 IMMEDIATE @ONLY)
-ELSE (CMAKE_TOOLCHAIN_FILE)
+  ELSE (CMAKE_TOOLCHAIN_FILE)
 
     # configure variables set in this file for fast reload, the template file is defined at the top of this file
     CONFIGURE_FILE(${CMAKE_ROOT}/Modules/CMakeSystem.cmake.in
                   ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeSystem.cmake 
                   IMMEDIATE @ONLY)
 
-ENDIF (CMAKE_TOOLCHAIN_FILE)
+  ENDIF (CMAKE_TOOLCHAIN_FILE)
+
+ENDIF(CMAKE_BINARY_DIR)

Source/CPack/cmCPackGenericGenerator.cxx

@@ -32,14 +32,14 @@
 cmCPackGenericGenerator::cmCPackGenericGenerator()
 {
   this->GeneratorVerbose = false;
-  this->MakefileMap = 0;
+  this->Makefile = 0;
   this->Logger = 0;
 }
 
 //----------------------------------------------------------------------
 cmCPackGenericGenerator::~cmCPackGenericGenerator()
 {
-  this->MakefileMap = 0;
+  this->Makefile = 0;
 }
 
 //----------------------------------------------------------------------
@@ -392,7 +392,7 @@ int cmCPackGenericGenerator::InstallProjectViaInstallScript(
         tempInstallDirectory);
       this->SetOptionIfNotSet("CMAKE_CURRENT_SOURCE_DIR",
         tempInstallDirectory);
-      int res = this->MakefileMap->ReadListFile(0, installScript.c_str());
+      int res = this->Makefile->ReadListFile(0, installScript.c_str());
       if ( cmSystemTools::GetErrorOccuredFlag() || !res )
         {
         return 0;
@@ -454,7 +454,7 @@ int cmCPackGenericGenerator::InstallProjectViaInstallCMakeProjects(
 
       const char* buildConfig = this->GetOption("CPACK_BUILD_CONFIG");
       cmGlobalGenerator* globalGenerator
-        = this->MakefileMap->GetCMakeInstance()->CreateGlobalGenerator(
+        = this->Makefile->GetCMakeInstance()->CreateGlobalGenerator(
           cmakeGenerator);
       // set the global flag for unix style paths on cmSystemTools as
       // soon as the generator is set.  This allows gmake to be used
@@ -464,9 +464,9 @@ int cmCPackGenericGenerator::InstallProjectViaInstallCMakeProjects(
       // Does this generator require pre-install?
       if ( globalGenerator->GetPreinstallTargetName() )
         {
-        globalGenerator->FindMakeProgram(this->MakefileMap);
+        globalGenerator->FindMakeProgram(this->Makefile);
         const char* cmakeMakeProgram
-          = this->MakefileMap->GetDefinition("CMAKE_MAKE_PROGRAM");
+          = this->Makefile->GetDefinition("CMAKE_MAKE_PROGRAM");
         std::string buildCommand
           = globalGenerator->GenerateBuildCommand(cmakeMakeProgram,
             installProjectName.c_str(), 0,
@@ -554,7 +554,7 @@ int cmCPackGenericGenerator::InstallProjectViaInstallCMakeProjects(
 void cmCPackGenericGenerator::SetOptionIfNotSet(const char* op,
   const char* value)
 {
-  const char* def = this->MakefileMap->GetDefinition(op);
+  const char* def = this->Makefile->GetDefinition(op);
   if ( def && *def )
     {
     return;
@@ -571,12 +571,12 @@ void cmCPackGenericGenerator::SetOption(const char* op, const char* value)
     }
   if ( !value )
     {
-    this->MakefileMap->RemoveDefinition(op);
+    this->Makefile->RemoveDefinition(op);
     return;
     }
   cmCPackLogger(cmCPackLog::LOG_DEBUG, this->GetNameOfClass()
     << "::SetOption(" << op << ", " << value << ")" << std::endl);
-  this->MakefileMap->AddDefinition(op, value);
+  this->Makefile->AddDefinition(op, value);
 }
 
 //----------------------------------------------------------------------
@@ -680,7 +680,7 @@ int cmCPackGenericGenerator::ProcessGenerator()
 int cmCPackGenericGenerator::Initialize(const char* name, cmMakefile* mf,
  const char* argv0)
 {
-  this->MakefileMap = mf;
+  this->Makefile = mf;
   this->Name = name;
   if ( !this->FindRunningCMake(argv0) )
     {
@@ -700,7 +700,7 @@ int cmCPackGenericGenerator::InitializeInternal()
 //----------------------------------------------------------------------
 const char* cmCPackGenericGenerator::GetOption(const char* op)
 {
-  return this->MakefileMap->GetDefinition(op);
+  return this->Makefile->GetDefinition(op);
 }
 
 //----------------------------------------------------------------------
@@ -913,7 +913,7 @@ std::string cmCPackGenericGenerator::FindTemplate(const char* name)
 {
   cmCPackLogger(cmCPackLog::LOG_DEBUG, "Look for template: "
     << (name ? name : "(NULL)") << std::endl);
-  std::string ffile = this->MakefileMap->GetModulesFile(name);
+  std::string ffile = this->Makefile->GetModulesFile(name);
   cmCPackLogger(cmCPackLog::LOG_DEBUG, "Found template: "
     << ffile.c_str() << std::endl);
   return ffile;
@@ -923,7 +923,7 @@ std::string cmCPackGenericGenerator::FindTemplate(const char* name)
 bool cmCPackGenericGenerator::ConfigureString(const std::string& inString,
   std::string& outString)
 {
-  this->MakefileMap->ConfigureString(inString,
+  this->Makefile->ConfigureString(inString,
     outString, true, false);
   return true;
 }
@@ -932,7 +932,7 @@ bool cmCPackGenericGenerator::ConfigureString(const std::string& inString,
 bool cmCPackGenericGenerator::ConfigureFile(const char* inName,
   const char* outName, bool copyOnly /* = false */)
 {
-  return this->MakefileMap->ConfigureFile(inName, outName,
+  return this->Makefile->ConfigureFile(inName, outName,
     copyOnly, true, false) == 1;
 }
 

Source/CPack/cmCPackGenericGenerator.h

@@ -130,8 +130,7 @@ protected:
 
   cmCPackLog* Logger;
 
-private:
+  cmMakefile* Makefile;
-  cmMakefile* MakefileMap;
 };
 
 #endif

Source/CPack/cpack.cxx

@@ -243,6 +243,25 @@ int main (int argc, char *argv[])
 
   if ( parsed && !help )
     {
+    // find out which system cpack is running on, so it can setup the search
+    // paths, so FIND_XXX() commands can be used in scripts
+    cminst.AddCMakePaths(argv[0]);
+    std::string systemFile = globalMF->GetModulesFile("CMakeDetermineSystem.cmake");
+    if (!globalMF->ReadListFile(0, systemFile.c_str()))
+      {
+      cmCPack_Log(&log, cmCPackLog::LOG_ERROR,
+        "Error reading CMakeDetermineSystem.cmake" << std::endl);
+      return 1;
+      }
+
+    systemFile = globalMF->GetModulesFile("CMakeSystemSpecificInformation.cmake");
+    if (!globalMF->ReadListFile(0, systemFile.c_str()))
+      {
+      cmCPack_Log(&log, cmCPackLog::LOG_ERROR,
+        "Error reading CMakeSystemSpecificInformation.cmake" << std::endl);
+      return 1;
+      }
+
     if ( cmSystemTools::FileExists(cpackConfigFile.c_str()) )
       {
       cpackConfigFile = 
@@ -327,7 +346,6 @@ int main (int argc, char *argv[])
         const char* gen = it->c_str();
         cmMakefile newMF(*globalMF);
         cmMakefile* mf = &newMF;
-          {
         cmCPack_Log(&log, cmCPackLog::LOG_VERBOSE,
           "Specified generator: " << gen << std::endl);
         if ( parsed && !mf->GetDefinition("CPACK_PACKAGE_NAME") )
@@ -420,7 +438,6 @@ int main (int argc, char *argv[])
         }
       }
     }
-    }
 
   if ( !parsed || help )
     {