CPackRPM add basic component support to CPackRPM

basic means 1 RPM per component and no dependency handling
this implies some CPackGenerator refactoring

1 files changed, 56 insertions, 3 deletions

diff --git a/Source/CPack/cmCPackRPMGenerator.cxx b/Source/CPack/cmCPackRPMGenerator.cxx
index 0641418b4c..a06b626777 100644
--- a/Source/CPack/cmCPackRPMGenerator.cxx
+++ b/Source/CPack/cmCPackRPMGenerator.cxx
@@ -37,13 +37,66 @@ int cmCPackRPMGenerator::InitializeInternal()
 //----------------------------------------------------------------------
 int cmCPackRPMGenerator::PackageFiles()
 {
-  this->ReadListFile("CPackRPM.cmake");
+  int retval = 1;
+  /* Digest Component grouping specification */
+  retval = PrepareGroupingKind();
+  cmCPackLogger(cmCPackLog::LOG_DEBUG, "Toplevel: "
+                  << toplevel << std::endl);
+
+  /* Are we in the component packaging case */
+  if (!this->ComponentGroups.empty())
+    {
+    /* Reset package file name list it will be populated during the
+     * component packaging run*/
+    packageFileNames.clear();
+    std::string initialTopLevel(this->GetOption("CPACK_TEMPORARY_DIRECTORY"));
+    /* One Package per component CASE */
+    /* Iterate over components */
+    std::map<std::string, cmCPackComponent>::iterator compIt;
+    for (compIt=this->Components.begin();
+        compIt!=this->Components.end(); ++compIt )
+      {
+      std::string localToplevel(initialTopLevel);
+      std::string packageFileName(cmSystemTools::GetParentDirectory(toplevel.c_str()));
+      std::string outputFileName(std::string(this->GetOption("CPACK_PACKAGE_FILE_NAME"))
+        +"-"+compIt->first + this->GetOutputExtension());
+
+      localToplevel += "/"+ compIt->first;
+      /* replace the TEMP DIRECTORY with the component one */
+      this->SetOption("CPACK_TEMPORARY_DIRECTORY",localToplevel.c_str());
+      packageFileName += "/"+ outputFileName;
+      /* replace proposed CPACK_OUTPUT_FILE_NAME */
+      this->SetOption("CPACK_OUTPUT_FILE_NAME",outputFileName.c_str());
+      /* replace the TEMPORARY package file name */
+      this->SetOption("CPACK_TEMPORARY_PACKAGE_FILE_NAME",packageFileName.c_str());
+
+      this->SetOption("CPACK_RPM_PACKAGE_COMPONENT",compIt->first.c_str());
+      if (!this->ReadListFile("CPackRPM.cmake"))
+        {
+        cmCPackLogger(cmCPackLog::LOG_ERROR, "Error while execution CPackRPM.cmake" << std::endl);
+        retval = 0;
+        }
+
+      // add the generated package to package file names list
+      packageFileNames.push_back(packageFileName);
+      }
+    }
+  /* This is the non component case */
+  else
+    {
+    if (!this->ReadListFile("CPackRPM.cmake"))
+      {
+      cmCPackLogger(cmCPackLog::LOG_ERROR, "Error while execution CPackRPM.cmake" << std::endl);
+      retval = 0;
+      }
+    }
+
   if (!this->IsSet("RPMBUILD_EXECUTABLE")) 
     {
     cmCPackLogger(cmCPackLog::LOG_ERROR, "Cannot find rpmbuild" << std::endl);
-    return 0;
+    retval = 0;
     }
-  return 1;
+  return retval;
 }