CPack Enable better handling of absolute installed files

The idea of the patch is to let the install generator define
CPACK_ABSOLUTE_INSTALL_FILES then when CMake is installing
project he will concatenate the list of files and give
it to specific CPack Generator by defining CPACK_ABSOLUTE_INSTALL_FILES
to be the list of ALL files that were installed using absolute destination.
An example of use has been applied to RPM generator which now
tries to automatically build a relocatable package.

2 files changed, 31 insertions, 0 deletions

diff --git a/Source/CPack/cmCPackGenerator.cxx b/Source/CPack/cmCPackGenerator.cxx
index e44fa7b..8ffcedc 100644
--- a/Source/CPack/cmCPackGenerator.cxx
+++ b/Source/CPack/cmCPackGenerator.cxx
@@ -461,6 +461,7 @@ int cmCPackGenerator::InstallProjectViaInstallCMakeProjects(
     = this->GetOption("CPACK_INSTALL_CMAKE_PROJECTS");
   const char* cmakeGenerator
     = this->GetOption("CPACK_CMAKE_GENERATOR");
+  std::string absoluteDestFiles;
   if ( cmakeProjects && *cmakeProjects )
     {
     if ( !cmakeGenerator )
@@ -735,6 +736,15 @@ int cmCPackGenerator::InstallProjectViaInstallCMakeProjects(
           mf->AddDefinition("CMAKE_INSTALL_DO_STRIP", "1");
           }
         int res = mf->ReadListFile(0, installFile.c_str());
+        if (NULL !=mf->GetDefinition("CPACK_ABSOLUTE_DESTINATION_FILES")) {
+          if (absoluteDestFiles.length()>0) {
+            absoluteDestFiles +=";";
+          }
+          absoluteDestFiles += mf->GetDefinition("CPACK_ABSOLUTE_DESTINATION_FILES");
+          cmCPackLogger(cmCPackLog::LOG_DEBUG,
+                                    "Got some ABSOLUTE DESTINATION FILES: "
+                                    << absoluteDestFiles << std::endl);
+        }
         if ( cmSystemTools::GetErrorOccuredFlag() || !res )
           {
           return 0;
@@ -742,6 +752,7 @@ int cmCPackGenerator::InstallProjectViaInstallCMakeProjects(
         }
       }
     }
+  this->SetOption("CPACK_ABSOLUTE_DESTINATION_FILES",absoluteDestFiles.c_str());
   return 1;
 }
 
diff --git a/Source/cmInstallGenerator.cxx b/Source/cmInstallGenerator.cxx
index 47ca769..9d5e416 100644
--- a/Source/cmInstallGenerator.cxx
+++ b/Source/cmInstallGenerator.cxx
@@ -60,6 +60,26 @@ void cmInstallGenerator
     }
   os << indent;
   std::string dest = this->GetInstallDestination();
+  if (cmSystemTools::FileIsFullPath(dest.c_str()))
+     {
+     os << "list(APPEND CPACK_ABSOLUTE_DESTINATION_FILES\n";
+     os << indent << " \"";
+     for(std::vector<std::string>::const_iterator fi = files.begin();
+               fi != files.end(); ++fi)
+             {
+               if (fi!=files.begin()) os << ";";
+               os << dest << cmSystemTools::ConvertToOutputPath("/");
+               if (rename && *rename)
+                 {
+                 os << rename;
+                 }
+               else
+                 {
+                 os << cmSystemTools::GetFilenameName(*fi);
+                 }
+             }
+     os << "\")\n";
+     }
   os << "FILE(INSTALL DESTINATION \"" << dest << "\" TYPE " << stype.c_str();
   if(optional)
     {