configure

#!/bin/bash
# Simple configuration script for people who expect such a script to exist.
# Please do not convert istatd to autotools. We will likely not accept such 
# a conversion. Thanks for your interest in istatd, and good luck!

set -e
set -o nounset

rm -f makevars.config

# Find Python version 2.
# If this fails, you need to create appropriate aliases or symlinks for 
# testing to work!
/usr/bin/env python -V

echo "# makevars.config for istatd generated on " `date` > makevars.config

BOOST_SYSTEM=""
BOOST_FILESYSTEM=""
STATGRAB=""
LIBRT=""
DESTDIR=""
USR_PREFIX=""
VAR_PREFIX=""
ETC_PREFIX=""

while [ $# -gt 0 ]; do
    case $1 in
        --boost_system)
            shift
            BOOST_SYSTEM="$1"
            ;;
        --boost_filesystem)
            shift
            BOOST_FILESYSTEM="$1"
            ;;
        --statgrab)
            shift
            STATGRAB="$1"
            ;;
        --librt)
            shift
            LIBRT="$1"
            ;;
        --prefix)
            shift
            DESTDIR="$1"
            ;;
        --usr-prefix)
            shift
            USR_PREFIX="$1"
            ;;
        --var-prefix)
            shift
            VAR_PREFIX="$1"
            ;;
        --etc-prefix)
            shift
            ETC_PREFIX="$1"
            ;;
        *)
            echo "Options:"
            echo "--boost_system     -lboost_system-mt      What is the boost_system library name?"
            echo "--boost_filesystem -lboost_filesystem-mt  What is the boost_filesystem library name?"
            echo "--statgrab         -lstatgrab             What is the statgrab library name?"
            echo "--librt            -lrt                   What is the librt library name (if any)?"
            echo "--prefix           /                      What is the root of the install?"
            echo "--usr-prefix       /usr                   What is the '/usr' directory for executables?"
            echo "--var-prefix       /var                   What is the '/var' directory for database data?"
            echo "--etc-prefix       /etc                   What is the '/etc/ directory for rc.d scripts?"
            echo "No equal sign for option values."
            exit 1
            ;;
    esac
    shift
done

# see if we need to install boost
if [ ! -d /usr/include/boost -a ! -d /usr/local/include/boost ]; then
    echo "You need to install libboost-all-dev for your distribution."
    exit 1
fi

if [ ! -r /usr/include/statgrab.h -a ! -r /usr/local/include/statgrab.h ]; then
    echo "You need to install libstatgrab-dev for your distribution, or "
    echo "download and install it from source. See README.md"
    exit 1
fi


# boost_system is a pain across versions
if [ -z "$BOOST_SYSTEM" ]; then
    if [ -r /usr/lib/libboost_system.so ]; then
        BOOST_SYSTEM=-lboost_system
    elif [ -r /usr/lib/libboost_system-mt.so ]; then
        BOOST_SYSTEM=-lboost_system-mt.so
    fi
fi
# boost_filesystem is also somewhat a pain
if [ -z "$BOOST_FILESYSTEM" ]; then
    if [ -r /usr/lib/libboost_filesystem.so ]; then
        BOOST_FILESYSTEM=-lboost_filesystem
    elif [ -r /usr/lib/libboost_filesystem-mt.so ]; then
        BOOST_FILESYSTEM=-lboost_filesystem-mt
    fi
fi
if [ -z "$STATGRAB" ]; then
    if [ -r /usr/lib/libstatgrab.so ]; then
        STATGRAB=-lstatgrab
    elif [ -r /usr/local/lib/libstatgrab.so ]; then
        STATGRAB=-lstatgrab
    fi
fi
if [ -z "$LIBRT" ]; then
    if [ -r /usr/lib/librt.so ]; then
        LIBRT=-lrt
    elif [ -r /usr/local/lib/librt.so ]; then
        LIBRT=-lrt
    fi
fi

if [ ! -z "$BOOST_SYSTEM" ]; then
    echo "BOOST_SYSTEM=$BOOST_SYSTEM" >> makevars.config
fi
if [ ! -z "$BOOST_FILESYSTEM" ]; then
    echo "BOOST_FILESYSTEM=$BOOST_FILESYSTEM" >> makevars.config
fi
if [ ! -z "$STATGRAB" ]; then
    echo "STATGRAB=$STATGRAB" >> makevars.config
fi
if [ ! -z "$LIBRT" ]; then
    echo "LIBRT=$LIBRT" >> makevars.config
fi
if [ ! -z "$DESTDIR" ]; then
    echo "DESTDIR=$DESTDIR" >> makevars.config
fi
if [ ! -z "$USR_PREFIX" ]; then
    echo "USR_PREFIX=$USR_PREFIX" >> makevars.config
fi
if [ ! -z "$VAR_PREFIX" ]; then
    echo "VAR_PREFIX=$VAR_PREFIX" >> makevars.config
fi
if [ ! -z "$ETC_PREFIX" ]; then
    echo "ETC_PREFIX=$ETC_PREFIX" >> makevars.config
fi

echo "All done"