#! /bin/bash
#*******************************************************************************
# E.S.O. - ALMA project
#
# "@(#) $Id: buildPython,v 1.29 2013/03/01 11:37:54 eallaert Exp $"
#
# who       when        what
# --------  ----------  ----------------------------------------------
# psivera   2002-08-21  created
# sturolla  2005-10-09  ported to bourne shell + add external subroutin for OS checking
# agrimstrup 2007-07-10 modified build to create shared library for Python interpreter
# agrimstrup 2007-08-22 updated Python to version 2.5.1 
# eallaert  2013-03-01  determine Tcl/Tk version dynamically instead of hardcoding
#

#************************************************************************
#   NAME
#
#   SYNOPSIS
#
#   DESCRIPTION
#
#   FILES
#
#   ENVIRONMENT
#
#   RETURN VALUES
#
#   CAUTIONS
#
#   EXAMPLES
#
#   SEE ALSO
#
#   BUGS
#
#------------------------------------------------------------------------
#

#
# Install Python
#
#  See www.python.org for information.
#
# Retrieve the sources from: ftp.python.org
#
#set -x
#export PYTHON_ROOT=/alma/$ALMASW_RELEASE/Python

# Load functions
. standardUtilities
#
# Fetch operating system and release version
#
os_discovery


LOG=buildPython.log
CWD=`pwd`
#
exec > $LOG 2>&1

date

if [ ! -d $PYTHON_ROOT ]
then
    mkdir -p $PYTHON_ROOT
    RET=$?
    if [ "$RET" != "0" ]
     then
        echo "Failed to create $PYTHON_ROOT, cannot continue..."
        exit 1
     fi
fi

echo installing the Python distribution

if [ ! -e ../PRODUCTS/Python-2.7.10.tar.gz ]
then
  echo Error: Python sources are missing
  exit 2
fi

#
# Python - Python-2.7.10
#
# Notes: See README for help
#
cd ../PRODUCTS

rm -rf Python-2.7.10
tar zxf Python-2.7.10.tar.gz

PATCH_LOC=`pwd`

cd Python-2.7.10


echo $SEPARATOR
if [ ${OS} = "LINUX" ] 
then
	echo "Installing on $DISTRO $OS version $REL"
elif [ "$OS" = "$CYGWIN_VER" ]
then
  echo "Installing on $OS"
else
	echo "Installing on $OS version $REL"
fi

if [     ${DISTRO}-${REL} != "SOLARIS-5.8"       \
     -a  ${DISTRO}-${REL} != "RHLX-7.2"           \
     -a  ${DISTRO}-${REL} != "RHLX-7.3"           \
     -a  ${DISTRO}-${REL} != "RHLX-9"           \
     -a  ${DISTRO}-${REL} != "RHEL-4"           \
     -a  ${DISTRO}-${REL} != "RHEL-5"           \
     -a  ${DISTRO}-${REL} != "SL-4.1"           \
     -a  ${DISTRO}-${REL} != "SL-5.3"           \
     -a  ${OS} != "$CYGWIN_VER"                 \
   ]
then
    echo "OS not supported. Proceeding as for Linux RH 9"
    echo ""
fi

TCL_VERSION=`echo 'puts $tcl_version; exit'| tclsh`

if [ "$OS" = "SOLARIS" ]
# SunOS: here inserted modifications in the  Modules/Setup.dist script.
then
   cp Modules/Setup.dist Modules/Setup.dist_backup
   cat Modules/Setup.dist | sed "s/\#\*shared\*/\*shared\*/" >> Modules/Setup.dist.tmp
   mv Modules/Setup.dist.tmp  Modules/Setup.dist

   cat Modules/Setup.dist | sed s/\#\ _tkinter\ _tkinter\.c\ tkappinit\.c\ \-DWITH_APPINIT/\ _tkinter\ _tkinter\.c\ tkappinit\.c\ \-DWITH_APPINIT/g >> Modules/Setup.dist.tmp
   mv Modules/Setup.dist.tmp  Modules/Setup.dist
 
   cat Modules/Setup.dist | sed "s,^#\(\W*-L\)/usr/local/lib,\1$TCLTK_ROOT/lib,g" >> Modules/Setup.dist.tmp
   mv Modules/Setup.dist.tmp  Modules/Setup.dist

   cat Modules/Setup.dist | sed "s,^#\(\W*-I\)/usr/local/include,\1$TCLTK_ROOT/include,g" >> Modules/Setup.dist.tmp
   mv Modules/Setup.dist.tmp  Modules/Setup.dist

   cat Modules/Setup.dist | sed "s,^#\(\W*-I\)/usr/openwin/include,\1/usr/openwin/include,g" >> Modules/Setup.dist.tmp
   mv Modules/Setup.dist.tmp  Modules/Setup.dist

   cat Modules/Setup.dist | sed "s,^#\(\W*-l\)tk8.2 -ltcl8.2,\1tk$TCL_VERSION -ltcl$TCL_VERSION,g" >> Modules/Setup.dist.tmp
   mv Modules/Setup.dist.tmp  Modules/Setup.dist

   cat Modules/Setup.dist | sed "s,^#\(\W*-L\)/usr/openwin/lib,\1/usr/openwin/lib,g" >> Modules/Setup.dist.tmp
   mv Modules/Setup.dist.tmp  Modules/Setup.dist

   cat Modules/Setup.dist | sed "s,^#\(\W*-l\)X11,\1X11,g" >> Modules/Setup.dist.tmp
   mv Modules/Setup.dist.tmp  Modules/Setup.dist

elif [ "$OS" = "LINUX" ]
then
   cp Modules/Setup.dist Modules/Setup.dist_backup
   cat Modules/Setup.dist | sed "s/\#\*shared\*/\*shared\*/" >> Modules/Setup.dist.tmp
   mv Modules/Setup.dist.tmp  Modules/Setup.dist

   cp Modules/Setup.dist Modules/Setup.dist_backup
   cat Modules/Setup.dist | sed "s/\#readline readline.c -lreadline -ltermcap/readline readline.c -lreadline -ltermcap/" >> Modules/Setup.dist.tmp
   mv Modules/Setup.dist.tmp  Modules/Setup.dist

   cat Modules/Setup.dist | sed s/\#\ _tkinter\ _tkinter\.c\ tkappinit\.c\ \-DWITH_APPINIT/\ _tkinter\ _tkinter\.c\ tkappinit\.c\ \-DWITH_APPINIT/g >> Modules/Setup.dist.tmp
   mv Modules/Setup.dist.tmp  Modules/Setup.dist
 
   cat Modules/Setup.dist | sed "s,^#\(\W*-L\)/usr/local/lib,\1$TCLTK_ROOT/lib,g" >> Modules/Setup.dist.tmp
   mv Modules/Setup.dist.tmp  Modules/Setup.dist

   cat Modules/Setup.dist | sed "s,^#\(\W*-I\)/usr/local/include,\1$TCLTK_ROOT/include,g" >> Modules/Setup.dist.tmp
   mv Modules/Setup.dist.tmp  Modules/Setup.dist

   cat Modules/Setup.dist | sed "s,^#\(\W*-I\)/usr/X11R6/include,\1/usr/include/X11,g" >> Modules/Setup.dist.tmp
   mv Modules/Setup.dist.tmp  Modules/Setup.dist

   cat Modules/Setup.dist | sed "s,^#\(\W*-l\)tk8.2 -ltcl8.2,\1tk$TCL_VERSION -ltcl$TCL_VERSION,g" >> Modules/Setup.dist.tmp
   mv Modules/Setup.dist.tmp  Modules/Setup.dist

   cat Modules/Setup.dist | sed "s,^#\(\W*-L\)/usr/X11R6/lib,\1/usr/lib -L/usr/lib64,g" >> Modules/Setup.dist.tmp
   mv Modules/Setup.dist.tmp  Modules/Setup.dist

   cat Modules/Setup.dist | sed "s,^#\(\W*-l\)X11,\1X11,g" >> Modules/Setup.dist.tmp
   mv Modules/Setup.dist.tmp  Modules/Setup.dist
elif [ "$OS" = "$CYGWIN_VER" ]
then
   patch -p1 -d . < ../Python-2.6.5.cygwin.patch
   cp Modules/Setup.dist Modules/Setup.dist_backup
   cat Modules/Setup.dist | sed "s/\#\*shared\*/\*shared\*/" >> Modules/Setup.dist.tmp
   mv Modules/Setup.dist.tmp  Modules/Setup.dist

   cp Modules/Setup.dist Modules/Setup.dist_backup
   cat Modules/Setup.dist | sed "s/\#readline readline.c -lreadline -ltermcap/readline readline.c -lreadline -lncurses/" >> Modules/Setup.dist.tmp
   mv Modules/Setup.dist.tmp  Modules/Setup.dist

   cat Modules/Setup.dist | sed s/\#\ _tkinter\ _tkinter\.c\ tkappinit\.c\ \-DWITH_APPINIT/\ _tkinter\ _tkinter\.c\ tkappinit\.c\ \-DWITH_APPINIT/g >> Modules/Setup.dist.tmp
   mv Modules/Setup.dist.tmp  Modules/Setup.dist
 
   cat Modules/Setup.dist | sed "s,^#\(\W*-L\)/usr/local/lib,\1$TCLTK_ROOT/lib,g" >> Modules/Setup.dist.tmp
   mv Modules/Setup.dist.tmp  Modules/Setup.dist

   cat Modules/Setup.dist | sed "s,^#\(\W*-I\)/usr/local/include,\1$TCLTK_ROOT/include,g" >> Modules/Setup.dist.tmp
   mv Modules/Setup.dist.tmp  Modules/Setup.dist

   cat Modules/Setup.dist | sed "s,^#\(\W*-I\)/usr/X11R6/include,\1/usr/include/X11,g" >> Modules/Setup.dist.tmp
   mv Modules/Setup.dist.tmp  Modules/Setup.dist

   cat Modules/Setup.dist | sed "s,^#\(\W*-l\)tk8.2 -ltcl8.2,\1tk$TCL_VERSION -ltcl$TCL_VERSION,g" >> Modules/Setup.dist.tmp
   mv Modules/Setup.dist.tmp  Modules/Setup.dist

   cat Modules/Setup.dist | sed "s,^#\(\W*-L\)/usr/X11R6/lib,\1/usr/lib -L/usr/lib64,g" >> Modules/Setup.dist.tmp
   mv Modules/Setup.dist.tmp  Modules/Setup.dist

   cat Modules/Setup.dist | sed "s,^#\(\W*-l\)X11,\1X11,g" >> Modules/Setup.dist.tmp
   mv Modules/Setup.dist.tmp  Modules/Setup.dist
fi

./configure --prefix $PYTHON_ROOT --exec-prefix $PYTHON_ROOT --enable-shared --enable-unicode=ucs4
#./configure --prefix $PYTHON_ROOT --exec-prefix $PYTHON_ROOT --enable-shared 
make
make install

cd $PYTHON_ROOT
patch -p1 < $PATCH_LOC/python-threading.patch

cd $CWD
echo Python installation done!
date