#!/bin/bash
# Script checks existence of cmake. If cmake is not
# installed or the installed version is to old (compared
# to the requiered version) cmake is installed and 
# the bin directory is added to $PATH
# TODO: Do we should edit the login script and add the 
#       cmake bin directory to the PATH
 is_in_path cmake
 result=$?
 if [ "$result" = "0" ];
 then
   echo "cmake not found in PATH" | tee -a $logfile
   echo "install cmake as external package" | tee -a $logfile
   install_cmake=yes
 else
   cmake_required_major_version=$(echo $CMAKEVERSION_REQUIRED | cut -d- -f2 | cut -d. -f1)
   cmake_required_minor_version=$(echo $CMAKEVERSION_REQUIRED  | cut -d- -f2 |cut -d. -f2)
   cmake_required_patch_version=$(echo $CMAKEVERSION_REQUIRED  | cut -d- -f2 |cut -d. -f3)
   cmake_required_version=$(echo $CMAKEVERSION_REQUIRED  | cut -d- -f2)
   cmake_installed_major_version=$(cmake --version | cut -d' '  -f3 | cut -d. -f1)
   cmake_installed_minor_version=$(cmake --version | cut -d. -f2)
   cmake_installed_patch_version=$(cmake --version | cut -d. -f3)
   cmake_version=$(cmake --version | cut -c15-)
   if [ "$cmake_installed_patch_version" == "" ]; then
     # output of cmake 2.8 is 'cmake version 2.8.2'
     # output of cmake 2.6 is 'cmake version 2.6-patch 0'
     cmake_installed_patch_version=$(cmake --version | cut -c19)
   fi
   
   if [ $cmake_installed_major_version -eq $cmake_required_major_version -a  \
        $cmake_installed_minor_version -ge $cmake_required_minor_version ];
   then
     if [ $cmake_installed_patch_version -ge $cmake_required_patch_version -o \
          $cmake_installed_minor_version -gt $cmake_required_minor_version ];
     then
       install_cmake=no       
       echo "Found cmake version $cmake_version which is newer than the"| tee -a $logfile
       echo "required version $cmake_required_version in PATH"| tee -a $logfile
       echo "This version is okay. Don't install cmake as external package."| tee -a $logfile
     else
       install_cmake=yes    
       echo "Found cmake version $cmake_version which is older than the"| tee -a $logfile  
       echo "required version $cmake_required_version in PATH"| tee -a $logfile
       echo "This version is to old"| tee -a $logfile
       echo "install cmake as external package"| tee -a $logfile
     fi
   else
     install_cmake=yes    
     echo "Found cmake version older than $cmake_required_version PATH"| tee -a $logfile
     echo "This version is to old"| tee -a $logfile
     echo "install cmake as external package"| tee -a $logfile
   fi
 fi

if [ "$install_cmake" = "yes" ];
then
  if [ "$make_install" = "yes" ]; 
  then
    install_prefix=$SIMPATH_INSTALL
  else
    install_prefix=$SIMPATH/basics/cmake
  fi
  checkfile=$install_prefix/bin/cmake    
  export PATH=$install_prefix/bin:$PATH:

  if (not_there CMake $checkfile)   
  then
    cd $SIMPATH/basics
     untar CMake $CMAKEVERSION.tar.gz
     ln -s $CMAKEVERSION cmake
     cd cmake
#     is_in_path cmake
#     result=$?
#     if [ "$result" = "0" ];
#     then
       ./bootstrap --prefix=$install_prefix
#     else
#       mkdir builddir
#       cd builddir
#       cmake .. -DCMAKE_INSTALL_PREFIX=$install_prefix
#     fi
     $MAKE_command -j $number_of_processes
     $MAKE_command install -j $number_of_processes
     check_success CMake $checkfile

     check=$? 
  fi
  if [ "$check" = "1" ];
  then
    export PATH=$install_prefix/bin:$PATH
  else
    echo "There was a problem installing cmake"
    echo "Stop the script at this point"    
    exit
  fi
fi  

cd $SIMPATH

return 1