CPack/Deb proper component packages file naming

Proper Debian packages file naming for multi-component setup
(breaks compatibility with previous versions)

Modules/CPackDeb.cmake

@@ -453,6 +453,17 @@ if(NOT UNIX)
   message(FATAL_ERROR "CPackDeb.cmake may only be used under UNIX.")
 endif()
 
+function(get_component_package_name var component)
+  string(TOUPPER "${component}" component_upcase)
+  if(CPACK_DEBIAN_${component_upcase}_PACKAGE_NAME)
+    string(TOLOWER "${CPACK_DEBIAN_${component_upcase}_PACKAGE_NAME}" package_name)
+  else()
+    string(TOLOWER "${CPACK_DEBIAN_PACKAGE_NAME}-${component}" package_name)
+  endif()
+
+  set("${var}" "${package_name}" PARENT_SCOPE)
+endfunction()
+
 #extract library name and version for given shared object
 function(extract_so_info shared_object libname version)
   if(READELF_EXECUTABLE)
@@ -775,12 +786,7 @@ function(cpack_deb_prepare_package_vars)
         set(CPACK_DEBIAN_${VAR_NAME_} "${CPACK_DEBIAN_${_local_component_name}_${VAR_NAME_}}")
       endif()
     endforeach()
-
-    if(CPACK_DEBIAN_${_local_component_name}_PACKAGE_NAME)
-      string(TOLOWER "${CPACK_DEBIAN_${_local_component_name}_PACKAGE_NAME}" CPACK_DEBIAN_PACKAGE_NAME)
-    else()
-      string(TOLOWER "${CPACK_DEBIAN_PACKAGE_NAME}-${CPACK_DEB_PACKAGE_COMPONENT}" CPACK_DEBIAN_PACKAGE_NAME)
-    endif()
+    get_component_package_name(CPACK_DEBIAN_PACKAGE_NAME ${_local_component_name})
   endif()
 
   set(CPACK_DEBIAN_PACKAGE_SHLIBS_LIST "")
@@ -810,6 +816,15 @@ function(cpack_deb_prepare_package_vars)
     endif()
   endif()
 
+  # Patch package file name to be in corrent form
+  if(CPACK_DEB_PACKAGE_COMPONENT)
+    set(CPACK_OUTPUT_FILE_NAME "${CPACK_DEBIAN_PACKAGE_NAME}_${CPACK_PACKAGE_VERSION}_${CPACK_DEBIAN_PACKAGE_ARCHITECTURE}.deb")
+    set(CPACK_TEMPORARY_PACKAGE_FILE_NAME "${CPACK_TOPLEVEL_DIRECTORY}/${CPACK_OUTPUT_FILE_NAME}")
+
+    get_filename_component(BINARY_DIR "${CPACK_OUTPUT_FILE_PATH}" DIRECTORY)
+    set(CPACK_OUTPUT_FILE_PATH "${BINARY_DIR}/${CPACK_OUTPUT_FILE_NAME}")
+  endif()
+
   # add ldconfig call in default postrm and postint
   set(CPACK_ADD_LDCONFIG_CALL 0)
   foreach(_FILE ${CPACK_DEB_SHARED_OBJECT_FILES})
@@ -866,6 +881,8 @@ function(cpack_deb_prepare_package_vars)
   #endif()
 
   # move variables to parent scope so that they may be used to create debian package
+  set(GEN_CPACK_OUTPUT_FILE_NAME "${CPACK_OUTPUT_FILE_NAME}" PARENT_SCOPE)
+  set(GEN_CPACK_TEMPORARY_PACKAGE_FILE_NAME "${CPACK_TEMPORARY_PACKAGE_FILE_NAME}" PARENT_SCOPE)
   set(GEN_CPACK_DEBIAN_PACKAGE_NAME "${CPACK_DEBIAN_PACKAGE_NAME}" PARENT_SCOPE)
   set(GEN_CPACK_DEBIAN_PACKAGE_VERSION "${CPACK_DEBIAN_PACKAGE_VERSION}" PARENT_SCOPE)
   set(GEN_CPACK_DEBIAN_PACKAGE_SECTION "${CPACK_DEBIAN_PACKAGE_SECTION}" PARENT_SCOPE)

Source/CPack/cmCPackDebGenerator.cxx

@@ -107,6 +107,9 @@ int cmCPackDebGenerator::PackageOnePack(std::string initialTopLevel,
     retval = 0;
     }
   // add the generated package to package file names list
+  packageFileName = this->GetOption("CPACK_TOPLEVEL_DIRECTORY");
+  packageFileName += "/";
+  packageFileName += this->GetOption("GEN_CPACK_OUTPUT_FILE_NAME");
   packageFileNames.push_back(packageFileName);
   return retval;
 }
@@ -234,6 +237,9 @@ int cmCPackDebGenerator::PackageComponentsAllInOne()
     retval = 0;
     }
   // add the generated package to package file names list
+  packageFileName = this->GetOption("CPACK_TOPLEVEL_DIRECTORY");
+  packageFileName += "/";
+  packageFileName += this->GetOption("GEN_CPACK_OUTPUT_FILE_NAME");
   packageFileNames.push_back(packageFileName);
   return retval;
 }
@@ -742,11 +748,12 @@ int cmCPackDebGenerator::createDeb()
   arFiles.push_back(topLevelString + "data.tar" + compression_suffix);
   std::string outputFileName = this->GetOption("CPACK_TOPLEVEL_DIRECTORY");
   outputFileName += "/";
-  outputFileName += this->GetOption("CPACK_OUTPUT_FILE_NAME");
+  outputFileName += this->GetOption("GEN_CPACK_OUTPUT_FILE_NAME");
   int res = ar_append(outputFileName.c_str(), arFiles);
   if ( res!=0 )
     {
-    std::string tmpFile = this->GetOption("CPACK_TEMPORARY_PACKAGE_FILE_NAME");
+    std::string tmpFile = this->GetOption(
+        "GEN_CPACK_TEMPORARY_PACKAGE_FILE_NAME");
     tmpFile += "/Deb.log";
     cmGeneratedFileStream ofs(tmpFile.c_str());
     ofs << "# Problem creating archive using: " << res << std::endl;