#!/bin/bash
# Function: Compile CERNLIBs on CYGWIN.
# Last modified by Zhiguo Yao <zhiguo.yao@ihep.ac.cn> on 15/07/2007

Cmd=$(basename $0)

StepNumber=$1
OneStepOnly=$2

case $StepNumber in
  [0-7]) ;;
  *) StepNumber="";;
esac

if [ -z "$StepNumber" ]; then
  cat << EOF
Syntax: $Cmd step_number [ one_step_only ]
  step_number: 0-7
    0: from the very beginning, the build directories is cleaned;
    1: from the build of lapack;
    2: from the unpacking of CERNLIBs, the patch is applied;
    3: from the build of the kuipc, scripts etc;
    4: from the build of the libraries;
    5: from the test of packlib;
    6: from the test of geantlib;
    7: from the test of mathlib.
  one_step_only: yes or no. Optional, default: no
    yes: run only one step;
    no:  run all the steps from the starting step "step_number".
EOF
  exit 1
fi

case "$OneStepOnly" in
 y|Y|yes|YES|1) OneStepOnly=1;;
 *) OneStepOnly=0;;
esac
 
echo "StepNumber = $StepNumber"
echo "OneStepOnly = $OneStepOnly"

# Check gmake
which gmake >& /dev/null || { echo "Please make a link from /usr/bin/make to /usr/bin/gmake, and run this script again."; exit 1; }

# Current directory
Cwd=$(pwd)

# Current time
DATE=$(date +%y%m%d_%H%M%S)

LAPACKFILE=""
for F in {src,tar,.}/{lapack-3*.tgz,lapack.tgz}; do
  [ -r $F ] || continue
  LAPACKFILE=$F
done

if [ -z "$LAPACKFILE" ]; then
  echo ">>> No LAPACK file is found!"
  echo ">>> It is the file named lapack.tgz or lapack-3*.tgz."
  while true; do
    echo -e ">>> Please specify it manually: \c"
    read LAPACKFILE
    [ -r $F ] || break
  done
fi

echo ">>> The LAPACK is $LAPACKFILE."

SRCDIR=""
for D in ./src ./tar .; do
  [ -r $D/src_Imakefile.tar.gz ] && { SRCDIR=$D; break; }
done

if [ -z "$SRCDIR" ]; then
  echo ">>> No CERNLIB repository directory is found!"
  echo ">>> It is the directory contains src_Imakefile.tar.gz and"
  echo ">>> other src_*.tar.gz files."
  while true; do
    echo -e ">>> Please specify it manually: \c"
    read SRCDIR
    [ -r $SRCDIR/src_Imakefile.tar.gz ] && break
  done
fi

echo ">>> The source of CERNLIB is found at $SRCDIR."

echo ">>> Set environmental variables: "
# Establish the environment variables for the build procedures
# Depending on the system, other directories may need to be added to the PATH
# e.g. for the build tools and alternative compilers.

CERN_LEVEL=$(gunzip -c $SRCDIR/src_Imakefile.tar.gz | tar tf - | awk -F/ '{ print $1 }')

CERN=$(pwd)/cern
CERN_ROOT=$CERN/$CERN_LEVEL
CVSCOSRC=$CERN/$CERN_LEVEL/src
PATH=$CERN_ROOT/bin:$PATH

export CERN
export CERN_LEVEL
export CERN_ROOT 
export CVSCOSRC
export PATH

echo "CERN = $CERN"
echo "CERN_LEVEL = $CERN_LEVEL"
echo "CERN_ROOT = \$CERN/\$CERN_LEVEL = $CERN_ROOT"


# A function defined here to check the log file for make errors:
error_check() {
  # Syntax: error_check log_file [ info1 info2 ... ]
  if tail -1 $1 | grep Error >& /dev/null; then
    shift 1
    echo "*** Error at making $*!"
    exit 1
  fi
  return 0
}


if [ $StepNumber -eq 0 ]; then
  cd $Cwd
  echo "Cleaning the building directories ..."
  if [ -d $CERN_ROOT/build ]; then
    # rebuild the libraries
    cd $CERN_ROOT/build && find . -type f -name Makefile -exec rm {} \;
    # clean the whole building from the very beginning
  fi
  cd $Cwd
  rm -rf $CERN_ROOT/{build,bin,lib}

  [ $OneStepOnly = 1 ] && exit 0
fi


if [ $StepNumber -le 1 ]; then
  cd $Cwd
  LAPACKUNTARDIR=$(tar -tzf $LAPACKFILE | head -1)
  OLDVER=0
  case $LAPACKUNTARDIR in
    ./LAPACK|LAPACK) OLDVER=1;;
    ./lapack-3*|lapack-3*) OLDVER=0;;
      *) echo "Error, the $LAPACKFILE is not LAPACK file!"; exit 1;;
  esac

  echo ">>> Start to make LAPACK ..."
  Cmd="tar -xzf $LAPACKFILE"
  echo "$Cmd"; $Cmd
  if [ $OLDVER = 1 ]; then
    rm -f ./LAPACK/TIMING/*.in
    tar -xvzf lapack_cygpatch.tgz
    cd LAPACK
  else
    cd $LAPACKUNTARDIR
    cp -p make.inc.example make.inc
    [ -r Makefile.orig ] || mv -f Makefile Makefile.orig
    sed -e "s,^lib: lapacklib tmglib,#lib: lapacklib tmglib,g" \
        -e "s,^#lib: blaslib lapacklib tmglib,lib: blaslib lapacklib tmglib,g" \
           Makefile.orig > Makefile
  fi
  [ -d $CERN_ROOT/build/log ] || mkdir -p $CERN_ROOT/build/log
  LOG=$CERN_ROOT/build/log/lapack.$DATE
  gmake 2>&1 | tee $LOG
  error_check $LOG lapack in step 1

  [ -d $CERN_ROOT/lib ] || mkdir -p $CERN_ROOT/lib
  cp -pf blas_LINUX.a  $CERN/$CERN_LEVEL/lib/libblas.a || exit 1
  cp -pf lapack_LINUX.a  $CERN/$CERN_LEVEL/lib/liblapack3.a || exit 1
  cp -pf tmglib_LINUX.a  $CERN/$CERN_LEVEL/lib/libtmglib.a

  [ $OneStepOnly = 1 ] && exit 0
fi

if [ $StepNumber -le 2 ]; then
  # Unpack the source files
  cd $Cwd

  list=$(ls $SRCDIR/src_*.gz)

  for ffile in $list; do
    echo ">>> Unpack $ffile ..."
    gunzip -c $ffile | tar -C $CERN -xf -
  done

  # Apply the patches for cygwin:

  # Clean the uppercase files, which are conflict with he lower case ones.
  # The cleaning is not always necessary unless 'check_case:strict' is
  # defined in variable CYGWIN
  rm -f \
  $CERN_ROOT/src/mclibs/pdf/spdf/ctq4Fn.F  \
  $CERN_ROOT/src/mclibs/pdf/spdf/ctq4PnX.F \
  $CERN_ROOT/src/mclibs/pdf/spdf/ctq4RA1.F \
  $CERN_ROOT/src/mclibs/pdf/spdf/ctq4RA2.F \
  $CERN_ROOT/src/mclibs/pdf/spdf/ctq4RA4.F \
  $CERN_ROOT/src/mclibs/pdf/spdf/ctq4RA5.F \
  $CERN_ROOT/src/mclibs/pdf/spdf/ctq4RD.F  \
  $CERN_ROOT/src/mclibs/pdf/spdf/ctq4RHJ.F \
  $CERN_ROOT/src/mclibs/pdf/spdf/ctq4RL.F  \
  $CERN_ROOT/src/mclibs/pdf/spdf/ctq4RM.F  \
  $CERN_ROOT/src/mclibs/pdf/spdf/ctq4RlQ.F

  # Apply the patches in a tar file
  CYGPATCH=""
  for F in {src,tar,.}/cernlib2005_cygpatch.tgz; do
    [ -r $F ] || continue
    CYGPATCH=$F
  done
  if [ -n "$CYGPATCH" ]; then
    tar -xvzf $CYGPATCH -C $CERN_ROOT
  else
    echo "Error, cannot find file cernlib2005_cygpatch.tgz in src/, tar/ or ./"
    exit 1
  fi

  # Create the build directory structure
  cd $CERN_ROOT
  for D in build bin lib build/log; do
    [ -d $D ] || mkdir -p $D
  done

  # Create the top level Makefile with imake
  cd $CERN_ROOT/build
  $CVSCOSRC/config/imake_boot || exit 1

  [ $OneStepOnly = 1 ] && exit 0
fi

if [ $StepNumber -le 3 ]; then
  cd $CERN_ROOT/build
  # Install kuipc and the scripts (cernlib, paw and gxint) in $CERN_ROOT/bin
  LOG=$CERN_ROOT/build/log/scripts.$DATE
  gmake bin/kuipc 2>&1 | tee $LOG
  error_check $LOG bin/kuipc in step 3

  cd $CERN_ROOT/build
  gmake scripts/Makefile 2>&1 | tee -a $LOG
  error_check $LOG scripts/Makefile in step 3

  cd $CERN_ROOT/build/scripts
  gmake install.bin 2>&1 | tee -a $LOG
  error_check $LOG install.bin of scripts in step 3

  [ $OneStepOnly = 1 ] && exit 0
fi

#
# Install the libraries
#

if [ $StepNumber -le 4 ]; then
  LOG=$CERN_ROOT/build/log/lib.$DATE

  # First make geant321 using lower optimization level
  cd $CERN_ROOT/build
  gmake geant321/Makefile 2>&1 | tee $LOG
  error_check $LOG geant321/Makefile in step 4

  cd $CERN_ROOT/build/geant321
  gmake install.lib FDEBUGFLAGS=-O0 2>&1 | tee -a $LOG
  error_check $LOG install.lib of geant321 in step 4

  cd $CERN_ROOT/build
  gmake 2>&1 | tee -a $LOG
  error_check $LOG all in step 4

  cd $CERN_ROOT/build/packlib
  gmake install.bin 2>&1 | tee -a $LOG
  error_check $LOG install.bin of packlib in step 4

  cd $CERN_ROOT/build/pawlib
  gmake install.bin 2>&1 | tee -a $LOG
  error_check $LOG install.bin of pawlib in step 4

  [ $OneStepOnly = 1 ] && exit 0
fi

#
# Test the installations
#

if [ $StepNumber -le 5 ]; then
  cd $CERN_ROOT/build/packlib
  LOG=$CERN_ROOT/build/log/packlib_test.$DATE
  gmake test 2>&1 | tee $LOG
  error_check $LOG test of packlib in step 5

  [ $OneStepOnly = 1 ] && exit 0
fi

if [ $StepNumber -le 6 ]; then
  cd $CERN_ROOT/build/geant321
  LOG=$CERN_ROOT/build/log/geant_test.$DATE
  gmake test 2>&1 | tee $LOG
  error_check $LOG test of geant in step 6

  [ $OneStepOnly = 1 ] && exit 0
fi

if [ $StepNumber -le 7 ]; then
  cd $CERN_ROOT/build/mathlib
  LOG=$CERN_ROOT/build/log/mathlib_test.$DATE
  gmake test 2>&1 | tee $LOG
  error_check $LOG test of mathlib in step 7

  [ $OneStepOnly = 1 ] && exit 0
fi


cat << EOF
STEP $StepNumber is done (with OneStepOnly = $OneStepOnly).

Note once more:

CERN=$CERN
CERN_LEVEL=$CERN_LEVEL
CERN_ROOT=$CERN_ROOT

Please move directory \$CERN ($CERN) to your favorite place, e.g., /cern,
and make a link from '$CERN_LEVEL' to 'pro'. Finally don't forget to
add the PATH.
EOF

exit 0