sit/sit

#!/bin/sh -l
#
# Install script inspired by the ebuild system of Gentoo Linux
#
# Christoph Niethammer <niethammer@hlrs.de> (C) 2011
#
 
# exit on any error!
set -e

SIT_PATH=$(dirname $PWD/$0)
SIT_CONFIG_FILE=$SIT_PATH/etc/sit.conf
SIT_USER_CONFIG_FILE=$HOME/.sit

# Reading in user configuration file if it exists
if [[ -e $SIT_USER_CONFIG_FILE ]] ; then
    source $SIT_USER_CONFIG_FILE
fi
# Reading in global configuration file
if [[ -e $SIT_CONFIG_FILE ]] ; then
    source $SIT_CONFIG_FILE
fi
source "$SIT_PATH/functions.sh"

# identify platform manually if no environment variable was set
if [ -z $PLATFORM ]; then
    case $HOSTNAME in
        cl3fr1|cl3fr2|cl3fr4|imager)
            PLATFORM="laki"
            ;;
        eslogin*)
            PLATFORM="hermit1"
            ;;
        *)
            sit_info "Unknown host '$HOSTNAME' using default platform '${DEFAULT_PLATFORM}' configuration"
            PLATFORM="${DEFAULT_PLATFORM}"
            ;;
    esac
fi

sit_info "Platform: $PLATFORM"

# compiler to use
# (gnu|intel|pgi)
COMPILER=${COMPILER:=${DEFAULT_COMPILER}}
# use specific compiler version
COMPILER_VERSION=${COMPILER_VERSION:=}


# add a descriptor at the end of the installation path e.g. for special config options etc.
PACKAGE_DESCRIPTOR=${PACKAGE_DESCRIPTOR:+-$PACKAGE_DESCRIPTOR}


# Compiler specifications
COMPILER_CONFIG_FILE="$SIT_PATH/etc/platform-configs/${PLATFORM}/compiler/${COMPILER}"
if [ -e $COMPILER_CONFIG_FILE ] ; then
    source $COMPILER_CONFIG_FILE
else
    sit_fail "Could not find configuration file for compiler '${COMPILER}' on platform '${PLATFORM}'."
fi


if [ "$COMPILER" == "system" ] ; then
    echo "Using system default compiler"
    COMPILER="" # prevent any compiler specs in the prefix
else 
    case $PLATFORM in
        hermit|hermit1)
            module swap $(module list -l 2>&1 | awk '/^PrgEnv-/{print $1}') PrgEnv-${COMPILER}
            if [ ! -z "$COMPILER_VERSION" ] ; then
                if [ "${COMPILER}" == "gnu" ] ; then
                    module swap gcc gcc/$COMPILER_VERSION
                else
                    module swap $COMPILER $COMPILER/$COMPILER_VERSION
                fi
            fi
            ;;
        laki|*)
            if [ -z "$COMPILER_VERSION" ] ; then
                COMPILER_MODULE=compiler/${COMPILER}
            else
                COMPILER_MODULE=compiler/${COMPILER}/${COMPILER_VERSION}
            fi
            echo "Loading compiler module ${COMPILER_MODULE}"
            module load ${COMPILER_MODULE}
            ;;
    esac
fi

if [ ! -z "${COMPILER}" ] ; then
    # reevaluate compiler version
    COMPILER_VERSION=$(eval "$COMPILER_VERSION_CMD")
fi
# make the compiler variables CC, CXX, FC and F77 available
if [ ! -z "$COMPILER_OPTS" ] ; then  
    echo "Compiler env: ${COMPILER_OPTS}"
    export ${COMPILER_OPTS}
fi
if [ ! -z $COMPILER ] ; then
    echo "Using compiler: $COMPILER version: $COMPILER_VERSION"
fi

if [ ! -z "$MPI" ] ; then 
    MPI_MODULE="mpi/$MPI"
    if [ ! -z "$MPI_VERSION" ] ; then
        MPI_VERSION_NUM=${MPI_VERSION%%-*}
        MPI_MODULE=${MPI_MODULE}${MPI_VERSION_NUM:+"/${MPI_VERSION_NUM}-$COMPILER-$COMPILER_VERSION"}
    fi  
    echo "Loading MPI module ${MPI_MODULE}"
    module load $MPI_MODULE
    MPICC="mpicc"
    MPI_DIR=${MPI_DIR:=$(dirname $(dirname $(which $MPICC)))}
fi


SCLASSFILE=$1
ACTION=$2

if [ -f $SCLASS_DIR/$SCLASSFILE ] ; then
    source $SCLASS_DIR/$SCLASSFILE
else
    sit_fail "Could not find file $SCLASS_DIR/$SCLASSFILE"
fi

PACKAGENAME=${PACKAGENAME:=$PACKAGE}

# construct the final installation directory path
PREFIX="${PREFIX_BASE}/${CATEGORY}/${PACKAGE}/${VERSION}"
PREFIX_SUFFIX=${MPI:+"-$MPI"}${MPI_VERSION_NUM:+"-$MPI_VERSION_NUM"}
PREFIX_SUFFIX=$PREFIX_SUFFIX${COMPILER:+"-$COMPILER"}${COMPILER_VERSION:+"-$COMPILER_VERSION"}
PREFIX_SUFFIX=$PREFIX_SUFFIX${PACKAGE_DESCRIPTOR}


PREFIX=$PREFIX${PREFIX_SUFFIX:+"$PREFIX_SUFFIX"}

# final working directory path
WORKDIR=${WORKDIR_BASE}/${CATEGORY}/${PACKAGE}/${VERSION}$PREFIX_SUFFIX

# path to the source code directory
SRCDIR=${WORKDIR}/${P}

# build directory (should be different from source directory):
BUILDDIR=${WORKDIR}/build

# logfile directory
LOGDIR=${WORKDIR}


# source the package class file a second time, so we can modify variables 
# using their default values. (Defaults depend on other vairables in 
# the class file like CATEGORY or PACKAGE)
source $SCLASS_DIR/$SCLASSFILE

echo "Package name:        $PACKAGENAME"
echo "Installation PREFIX: $PREFIX"
echo "Working dir:         $WORKDIR"
echo "Source dir:          $SRCDIR"
echo "Build dir:           $BUILDDIR"
echo "Logfile dir:         $LOGDIR"

sit_countdown 3

if [ -d ${WORKDIR} ] ; then
    sit_info "Removing existing working directory ${WORKDIR}"
    sit_countdown 5
    rm -rf ${WORKDIR}
fi
mkdir -p ${WORKDIR}
mkdir -p ${BUILDDIR}
if [ ! -z ${LOGDIR} ] ; then
    mkdir -p ${LOGDIR}
else
# TODO: this is dangerous as we compress and copy all *.log files inside LOGDIR!
    LOGDIR="/tmp"
fi

sit_sitinfo >> "$LOGDIR/sit_cmd.log"
sit_unpack    2>&1 | tee "$LOGDIR/unpack.log";       ( exit ${PIPESTATUS[0]} )
sit_prepare   2>&1 | tee "$LOGDIR/prepare.log";      ( exit ${PIPESTATUS[0]} )
sit_configure 2>&1 | tee "$LOGDIR/configure.log";    ( exit ${PIPESTATUS[0]} )
sit_build     2>&1 | tee "$LOGDIR/make.log";         ( exit ${PIPESTATUS[0]} )

sit_pretest   2>&1 | tee "$LOGDIR/pretest.log";      ( exit ${PIPESTATUS[0]} )
sit_install   2>&1 | tee "$LOGDIR/make_install.log"; ( exit ${PIPESTATUS[0]} )
sit_posttest  2>&1 | tee "$LOGDIR/posttest.log";     ( exit ${PIPESTATUS[0]} )
sit_copy_logs
sit_setperms  


cat <<EOF
##############################################################################
# IMPORTANT!
##############################################################################
# Do not forget to provide a module file!
##############################################################################
EOF

exit 0