#!/bin/sh
#
# (Ba)sh startup
#
# $Id: hops.bash.in 728 2012-05-30 16:12:39Z gbc $
#
# Version @VERSION@
#

#
# Help for the befuddled user.  The name is probably hops.bash.
#
zero=hops.bash
Help='Usage: . @prefix@/bin/'$zero'

will set up your HOPS environment by modifying the following variables:

    PATH            executable search path
    INFOPATH        info file search path
    LD_LIBRARY_PATH adds dynamic linkage to PGPLOT_DIR

    HOPS_ROOT       root of the HOPS package
    HOPS_VERS       version number of this package
    HOPS_ARCH       installation architecture
    HOPS_DOCS       program documentation support
    HOPS_SETUP      is set true after invocation
    HOPS_QUIET      controls setup diagnostics

    PGPLOT_DIR      sets this appropriately if not otherwise defined
    PGPLOT_TYPE     sets this to /xw if not defined
    PGPLOT_DEV      sets this to /xw if not defined
    PROGDOC         used by HOPS vhelp to find help texts
    TEXT            used by HOPS for text configuration files
    AHELP           used by aedit for help texts
    DEF_CONTROL     used by fourfit
    GS_DEVICE       used by ghostscript
    DATADIR         parent of experiment data directory

    SCHEDDIR, AFILEDIR, SYSVEX, TASK, BIN, TMP
		    heritage variables that are
		    assigned but perhaps not used

    MK4_PRINTER	    can be pointed to your preferred printer

Set HOPS_QUIET (to anything) if you do not want the chatter.
Once setup, HOPS_SETUP is defined to be "true".  You can set this
to "false" to reinitialize with a different version of the software,
e.g. something like one of these (depending on which '$zero')

    HOPS_SETUP=false . ~/bin/'$zero'
    HOPS_SETUP=false . @prefix@/'$zero'

Otherwise, reinvocation will merely tell you what you are using.
To purge HOPS from your environment, set HOPS_SETUP to "purge".
'
Version="@srcdir@/$zero  [ @BUILD_DATE@ ]"
case "nada$1" in
nada--help)     echo "$Help"    ; exit 0 ;;
nada--version)  echo "$Version" ; exit 0 ;;
nada)                                    ;;
nada*)          echo "$Help"    ; exit 1 ;;
esac

# using variables as defined by config.status where possible
# datarootdir is required for autoconf 2.6 and later
[ -z "$prefix" ] && prefix=@prefix@
[ -z "$exec_prefix" ] && exec_prefix=@exec_prefix@
[ -z "$datarootdir" ] && datarootdir=@datarootdir@

#
# remove old version from PATH
#
[ -n "$HOPS_SETUP" -a -n "$HOPS_ROOT" ] && {
  [ "$HOPS_SETUP" = true ] || {
    [ -z "$HOPS_QUIET" ] && echo Revising HOPS version.
    Path=`echo $PATH | sed -e "s+@bindir@[:]*++g"`
    Info=`echo $INFOPATH | sed -e "s+@infodir@[:]*++g"`
    Libp=`echo $LD_LIBRARY_PATH | sed -e "s+@libdir@/hops[:]*++g"`
    export PATH=$Path
    export INFOPATH=$Info
    export LD_LIBRARY_PATH=Libp
    [ "$HOPS_SETUP" = false ] && HOPS_SETUP=''
    unset HOPS_ROOT HOPS_VERS HOPS_ARCH HOPS_DOCS
    unset PROGDOC TEXT AHELP DEF_CONTROL DATADIR
    unset SCHEDDIR AFILEDIR SYSVEX TASK BIN TMP
  }
}

[ -z "$HOPS_SETUP" ] && {
    #
    # basic stuff
    #
    Setup=Setup
    export HOPS_ROOT=@HOPS_ROOT@
    export HOPS_ARCH=@HOPS_ARCH@
    export HOPS_VERS=@VERSION@
    export HOPS_SETUP=true

    Path=@bindir@
    [ -z "$PATH" ] && PATH=${Path} || PATH=${Path}:$PATH

    Info=@infodir@
    [ -z "$INFOPATH" ] && INFOPATH=${Info} || INFOPATH=${Info}:$INFOPATH
    export INFOPATH

    [ -z "$PGPLOT_DIR" ] && Libp=@PGPLOT_DIR@ || Libp=$PGPLOT_DIR
    export PGPLOT_DIR=$Libp

    [ -z "$PGPLOT_TYPE" ] && PGPLOT_TYPE=/xw
    [ -z "$PGPLOT_DEV" ] && PGPLOT_DEV=/xw
    export PGPLOT_TYPE PGPLOT_DEV

    [ -z "$LD_LIBRARY_PATH" ] && LD_LIBRARY_PATH=$Libp ||
	LD_LIBRARY_PATH=${Libp}:$LD_LIBRARY_PATH
    [ -d "@DIFXLIBS@" ] &&
	LD_LIBRARY_PATH=@DIFXLIBS@:$LD_LIBRARY_PATH
    LD_LIBRARY_PATH=@libdir@/hops:$LD_LIBRARY_PATH
    export LD_LIBRARY_PATH

    # program documentation
    export HOPS_DOCS=@datadir@/hops
    export PROGDOC=$HOPS_DOCS/vhelp
    export AHELP=$HOPS_DOCS/vhelp/aedit
    export TEXT=$HOPS_DOCS/text

    # miscellany
    [ -z "$DEF_CONTROL" ] && export DEF_CONTROL=/dev/null
    [ -z "$GS_DEVICE" ] && export GS_DEVICE=x11
    [ -z "$PGPLOT_TYPE" ] && export PGPLOT_TYPE=/xw

    # /correlator/data is the current working equivalent
    [ -z "$DATADIR" ] && export DATADIR=$HOPS_ROOT/data

    # printing via autoconfig
    [ -n "@PRINTER@" -a -z "$MK4_PRINTER" ] && export MK4_PRINTER=@PRINTER@

    # heritage variables that are repointed away from /correlator
    export SCHEDDIR=HOPS-no-such-dir-sched
    export AFILEDIR=HOPS-no-such-dir-afile
    export SYSVEX=HOPS-no-such-dir-sysvex
    export TASK=HOPS-no-such-dir-task
    export BIN=@bindir@
    export TMP=/tmp

    true
} || {
    #
    # basic stuff
    #
    Setup=Using
}

[ -z "$HOPS_QUIET" ] &&
    echo $Setup HOPS v$HOPS_VERS with HOPS_ROOT=$HOPS_ROOT for $HOPS_ARCH

#
# all done
#
unset Path Info Libp Setup Help Version exec_prefix prefix

#
# eof
#