ENH: patch from Eric Noulard for an RPM package generator

It seems rpmbuild can't handle paths with spaces, it complains that
Buildroot takes only one tag (or something like this), quoting and escaping
don't seem to help.

Alex

Modules/CPackRPM.cmake

@@ -1,3 +1,6 @@
+# CPack script for creating RPM package
+# Author: Eric Noulard with the help of Alexander Neundorf
+
 IF(CMAKE_BINARY_DIR)
   MESSAGE(FATAL_ERROR "CPackRPM.cmake may only be used by CPack internally.")
 ENDIF(CMAKE_BINARY_DIR)
@@ -6,9 +9,191 @@ IF(NOT UNIX)
   MESSAGE(FATAL_ERROR "CPackRPM.cmake may only be used under UNIX.")
 ENDIF(NOT UNIX)
 
+# rpmbuild is the basic command for building RPM package
+# it may be a simple (symbolic) link to rpmb command.
 FIND_PROGRAM(RPMBUILD_EXECUTABLE rpmbuild)
 
 IF(NOT RPMBUILD_EXECUTABLE)
   MESSAGE(FATAL_ERROR "RPM package requires rpmbuild executable")
 ENDIF(NOT RPMBUILD_EXECUTABLE)
 
+# If rpmbuild is found 
+# we try to discover alien since we may be on non RPM distro like Debian.
+# In this case we may try to to use more advanced features
+# like generating RPM directly from DEB using alien.
+# FIXME feature not finished (yet)
+FIND_PROGRAM(ALIEN_EXECUTABLE alien)
+IF(ALIEN_EXECUTABLE)
+  MESSAGE(STATUS "alien found, we may be on a Debian based distro.")
+ENDIF(ALIEN_EXECUTABLE)
+
+# 
+# Use user-defined RPM specific variables value
+# or generate reasonable default value from
+# CPACK_xxx generic values.
+# The variables comes from the needed (mandatory or not)
+# values found in the RPM specification file aka ".spec" file.
+# The variables which may/should be defined are:
+#
+
+# RPM_PACKAGE_SUMMARY (mandatory)
+IF(NOT RPM_PACKAGE_SUMMARY)
+  # if neither var is defined lets use the name as summary
+  IF(NOT CPACK_PACKAGE_DESCRIPTION_SUMMARY)
+    STRING(TOLOWER "${CPACK_PACKAGE_NAME}" RPM_PACKAGE_SUMMARY)
+  ELSE(NOT CPACK_PACKAGE_DESCRIPTION_SUMMARY)
+    SET(RPM_PACKAGE_SUMMARY ${CPACK_PACKAGE_DESCRIPTION_SUMMARY})    
+  ENDIF(NOT CPACK_PACKAGE_DESCRIPTION_SUMMARY)
+ENDIF(NOT RPM_PACKAGE_SUMMARY)
+ 
+# RPM_PACKAGE_NAME (mandatory)
+IF(NOT RPM_PACKAGE_NAME)
+  STRING(TOLOWER "${CPACK_PACKAGE_NAME}" RPM_PACKAGE_NAME)
+ENDIF(NOT RPM_PACKAGE_NAME)
+
+# RPM_PACKAGE_VERSION (mandatory)
+IF(NOT RPM_PACKAGE_VERSION)
+  IF(NOT CPACK_PACKAGE_VERSION)
+    MESSAGE(FATAL_ERROR "RPM package requires a package version")
+  ENDIF(NOT CPACK_PACKAGE_VERSION)
+  SET(RPM_PACKAGE_VERSION ${CPACK_PACKAGE_VERSION})
+ENDIF(NOT RPM_PACKAGE_VERSION)
+
+# RPM_PACKAGE_ARCHITECTURE (optional)
+IF(NOT RPM_PACKAGE_ARCHITECTURE)
+  # FIXME This should be obtained through 'arch' command
+  # but is it --really necessary-- ?
+  SET(RPM_PACKAGE_ARCHITECTURE i386)
+ENDIF(NOT RPM_PACKAGE_ARCHITECTURE)
+
+# RPM_PACKAGE_RELEASE
+# The RPM release is the numbering of the RPM package ITSELF
+# this is the version of the PACKAGING and NOT the version
+# of the CONTENT of the package.
+# You may well need to generate a new RPM package release
+# without changing the version of the packaged software.
+# This is the case when the packaging is buggy (not) the software :=)
+# If not set, 1 is a good candidate
+IF(NOT RPM_PACKAGE_RELEASE)
+  SET(RPM_PACKAGE_RELEASE 1)
+ENDIF(NOT RPM_PACKAGE_RELEASE)
+
+# RPM_PACKAGE_LICENSE
+IF(NOT RPM_PACKAGE_LICENSE)
+  SET(RPM_PACKAGE_LICENSE "unknown")
+ENDIF(NOT RPM_PACKAGE_LICENSE)
+
+# RPM_PACKAGE_GROUP
+IF(NOT RPM_PACKAGE_GROUP)
+  SET(RPM_PACKAGE_GROUP "unknown")
+ENDIF(NOT RPM_PACKAGE_GROUP)
+
+# RPM_PACKAGE_SOURCE
+# The name of the source tarball in case we generate
+# a source RPM
+
+# RPM_PACKAGE_DESCRIPTION
+# FIXME may be found in CPACK_PACKAGE_DESCRIPTION_FILE
+
+# RPM_USER_BINARY_SPECFILE 
+# FIXME when this is set then CPack should us the 
+# user provided file.
+
+# Now we may create the RPM build tree structure
+SET(RPM_ROOTDIR "${CPACK_TOPLEVEL_DIRECTORY}")
+MESSAGE(STATUS "CPackRPM:: Using RPM_ROOTDIR=${RPM_ROOTDIR}")
+# Prepare RPM build tree
+FILE(MAKE_DIRECTORY ${RPM_ROOTDIR})
+FILE(MAKE_DIRECTORY ${RPM_ROOTDIR}/tmp)
+FILE(MAKE_DIRECTORY ${RPM_ROOTDIR}/BUILD)
+FILE(MAKE_DIRECTORY ${RPM_ROOTDIR}/RPMS)
+FILE(MAKE_DIRECTORY ${RPM_ROOTDIR}/SOURCES)
+FILE(MAKE_DIRECTORY ${RPM_ROOTDIR}/SPECS)
+FILE(MAKE_DIRECTORY ${RPM_ROOTDIR}/SRPMS)
+
+#SET(RPM_FILE_NAME "${RPM_PACKAGE_NAME}-${RPM_PACKAGE_VERSION}-${RPM_PACKAGE_RELEASE}-${RPM_PACKAGE_ARCHITECTURE}.rpm")
+SET(RPM_FILE_NAME "${CPACK_OUTPUT_FILE_NAME}")
+# it seems rpmbuild can't handle spaces in the path
+# neither escaping (as below) nor putting quotes around the path seem to help
+#STRING(REGEX REPLACE " " "\\\\ " RPM_DIRECTORY "${CPACK_TOPLEVEL_DIRECTORY}")
+SET(RPM_DIRECTORY "${CPACK_TOPLEVEL_DIRECTORY}")
+  
+
+SET(RPM_BINARY_SPECFILE "${RPM_ROOTDIR}/SPECS/${RPM_PACKAGE_NAME}.spec")
+IF(RPM_USER_BINARY_SPECFILE)
+  # User may have specified SPECFILE just use it
+  MESSAGE("CPackRPM: Will use user specified spec file: ${RPM_USER_BINARY_SPECFILE}")
+  # Note that user provided file is processed for @var replacement
+  CONFIGURE_FILE(${RPM_USER_BINARY_SPECFILE} ${RPM_BINARY_SPECFILE} @ONLY)
+ELSE(RPM_USER_BINARY_SPECFILE)
+  # No User specified spec file generate a valid one using var values
+  IF(RPM_PACKAGE_DEBUG)
+    MESSAGE("CPackRPM:: CPACK_TOPLEVEL_DIRECTORY = ${CPACK_TOPLEVEL_DIRECTORY}")
+    MESSAGE("CPackRPM:: CPACK_TOPLEVEL_TAG       = ${CPACK_TOPLEVEL_TAG}")
+    MESSAGE("CPackRPM:: CPACK_TEMPORARY_DIRECTORY= ${PACK_TEMPORARY_DIRECTORY}")
+    MESSAGE("CPackRPM:: CPACK_OUTPUT_FILE_NAME   = ${CPACK_OUTPUT_FILE_NAME}")
+    MESSAGE("CPackRPM:: CPACK_OUTPUT_FILE_PATH   = ${CPACK_OUTPUT_FILE_PATH}")
+    MESSAGE("CPackRPM:: CPACK_PACKAGE_FILE_NAME  = ${CPACK_PACKAGE_FILE_NAME}")
+    MESSAGE("CPackRPM:: RPM_BINARY_SPECFILE      = ${RPM_BINARY_SPECFILE}")
+    MESSAGE("CPackRPM:: CPACK_PACKAGE_INSTALL_DIRECTORY   = ${PACK_PACKAGE_INSTALL_DIRECTORY}")
+    MESSAGE("CPackRPM ::CPACK_TEMPORARY_PACKAGE_FILE_NAME = ${CPACK_TEMPORARY_PACKAGE_FILE_NAME}")
+  ENDIF(RPM_PACKAGE_DEBUG)
+  FILE(WRITE ${RPM_BINARY_SPECFILE}
+    "# -*- rpm-spec -*-
+Buildroot:      ${RPM_DIRECTORY}/${CPACK_PACKAGE_FILE_NAME}
+Summary:        ${RPM_PACKAGE_SUMMARY}
+Name:           ${RPM_PACKAGE_NAME}
+Version:        ${RPM_PACKAGE_VERSION}
+Release:        ${RPM_PACKAGE_RELEASE}
+License:        ${RPM_PACKAGE_LICENSE}
+Group:          ${RPM_PACKAGE_LICENSE}
+
+#%define prefix ${CMAKE_INSTALL_PREFIX}
+%define _rpmdir ${RPM_DIRECTORY}
+%define _rpmfilename ${RPM_FILE_NAME}
+%define _unpackaged_files_terminate_build 0
+%define _topdir ${RPM_DIRECTORY}
+
+%description
+${RPM_PACKAGE_NAME} : will come soon 
+with the value of RPM_PACKAGE_DESCRIPTION
+or
+the content of CPACK_PACKAGE_DESCRIPTION_FILE
+***
+${RPM_PACKAGE_DESCRIPTION}
+***
+
+%prep
+
+%build
+  
+%install
+
+%clean
+
+%files
+%defattr(-,root,root,-)
+#%dir %{prefix}
+#%{prefix}/*
+/*
+
+%changelog
+* Tue Aug 16 2007 Erk <[email protected]>
+  Generated by CPack RPM Generator and associated macros
+")
+
+ENDIF(RPM_USER_BINARY_SPECFILE)
+
+
+IF(RPMBUILD_EXECUTABLE)
+  # Now call rpmbuild using the SPECFILE
+  EXECUTE_PROCESS(
+    COMMAND "${RPMBUILD_EXECUTABLE}" -bb "${RPM_BINARY_SPECFILE}"
+    WORKING_DIRECTORY "${CPACK_TOPLEVEL_DIRECTORY}/${CPACK_PACKAGE_FILE_NAME}"
+    ERROR_FILE "${CPACK_TOPLEVEL_DIRECTORY}/rpmbuild.err"
+    OUTPUT_FILE "${CPACK_TOPLEVEL_DIRECTORY}/rpmbuild.out")
+ELSE(RPMBUILD_EXECUTABLE)
+  IF(ALIEN_EXECUTABLE)
+    MESSAGE(FATAL_ERROR "RPM packaging through alien not done (yet)")
+  ENDIF(ALIEN_EXECUTABLE)
+ENDIF(RPMBUILD_EXECUTABLE)

Source/CPack/cmCPackRPMGenerator.cxx

@@ -35,19 +35,34 @@ cmCPackRPMGenerator::~cmCPackRPMGenerator()
 }
 
 //----------------------------------------------------------------------
-int cmCPackRPMGenerator::CompressFiles(const char* outFileName,
-  const char* toplevel,
+int cmCPackRPMGenerator::CompressFiles(const char* /*outFileName*/,
+  const char* /*toplevel*/,
   const std::vector<std::string>& /*files*/)
 {
   this->ReadListFile("CPackRPM.cmake");
+//   const char* cmakeExecutable = this->GetOption("CMAKE_COMMAND");
+
   if (!this->IsSet("RPMBUILD_EXECUTABLE")) 
     {
     cmCPackLogger(cmCPackLog::LOG_ERROR, "Cannot find rpmbuild" << std::endl);
     return 0;
     }
-  const char* rpmbuildExecutable = this->GetOption("RPMBUILD_EXECUTABLE");
-  printf("rpmbuild: %s outFileName: %s toplevel: %s\n", rpmbuildExecutable, 
-         outFileName, toplevel);
+
+  /* FIXME we should be able to stick with RPM naming scheme
+   * and not following CMake naming scheme?
+  const char* rpmFileName = this->GetOption("RPM_FILE_NAME");
+  const char* rpmDirectory = this->GetOption("RPM_DIRECTORY");
+  this->SetOption("CPACK_OUTPUT_FILE_NAME",rpmFileName);
+  std::string rpmFilePath;
+  rpmFilePath += rpmDirectory;
+  rpmFilePath += "/";
+  rpmFilePath += rpmFileName;
+  this->SetOption("CPACK_TEMPORARY_PACKAGE_FILE_NAME",rpmFilePath.c_str());
+  */
+  //  this->SetOption("CPACK_OUTPUT_FILE_PATH",rpmFilePath);
+  
+  //FIXME I think we should split CPackRPM.cmake into (at least)
+  //      2 differents files
 
   return 1;
 }

Source/CPack/cmCPackRPMGenerator.h

@@ -23,7 +23,11 @@
 
 /** \class cmCPackRPMGenerator
  * \brief A generator for RPM packages
- *
+ * The idea of the CPack RPM generator is to use
+ * as minimal C++ code as possible.
+ * Ideally the C++ part of the CPack RPM generator
+ * will only 'execute' (aka ->ReadListFile) several
+ * CMake macros files.
  */
 class cmCPackRPMGenerator : public cmCPackGenericGenerator
 {