#!/bin/sh

interactive=1
sourced=1
unset use_shell
case $* in
    *--no-interactive*)
        unset interactive
        ;;
esac

fail() {
    echo $* >&2
    exit 1
}

# make sure we are sourced, and not run
if test "`basename $0`" = "greenstone" ; then
# if $0 is "greenstone" we've been run... $0 is shellname if sourced.
# One exception is zsh has an option to set it temporarily to the script name
    if test -z "$ZSH_NAME" ; then
        # we aren't using zsh
        unset sourced
    fi
fi

if test -z "$sourced" ; then
    test -z "$interactive" && fail "Script must be sourced for non-interactive use"
    echo "Script was not sourced" >&2
    echo -n "Use a new shell? (y/[n]) " >&2
    read use_shell
    test "$use_shell" != "y" -a "$use_shell" != "Y" && fail "Script must either be sourced, or allowed to start an interactive shell"
    use_shell=1
fi

GSDLHOME=/opt/greenstone/gs2build
export GSDLHOME

GSDLOS=linux
export GSDLOS

# Establish cpu architecture
# 32-bit or 64-bit?
UNAME_HW_MACH=`uname -m`

# Following test came from VirtualBox's Guest Additions autostart.sh
# (adapted for use in Greenstone)
case "$UNAME_HW_MACH" in
i[3456789]86|x86|i86pc)
    GSDLARCH='32'                                                                                                
    ;;
x86_64|amd64|AMD64)
    GSDLARCH='64'
    ;;
*)
    echo "Unknown architecture: $UNAME_HW_MACH" >&2
    ;;
esac

# Only want non-trival GSDLARCH value set if there is evidence of
# the installed bin (lib, ...) directories using linux32, linux64
# (otherwise probably looking at an SVN compiled up version for single OS)
if test ! -d "$GSDLHOME/bin/$GSDLOS$GSDLARCH" ;
then
    GSDLARCH=""
fi

export GSDLARCH

# Workaround for perl >= 5.18
PERL_PERTURB_KEYS=0
export PERL_PERTURB_KEYS


PATH="$GSDLHOME/bin/script:$GSDLHOME/bin/$GSDLOS$GSDLARCH:$PATH"
export PATH
LD_LIBRARY_PATH="$GSDLHOME/gs2build/lib/$GSDLOS$GSDLARCH:$GSDLHOME/lib/$GSDLOS$GSDLARCH:$LD_LIBRARY_PATH"
export LD_LIBRARY_PATH

if test -n "$interactive" -a -z "$GSDL3HOME" ; then
    echo "Where are the collections? [/srv/gsdl/]" >&2
    echo -n " > " >&2
    read GSDL3HOME
fi
if test -z "$GSDL3HOME" ; then
    echo "Setting collections location to the default" >&2
    GSDL3HOME=/srv/gsdl
fi
export GSDL3HOME

test -d "$GSDL3HOME/sites/localsite/collect" || mkdir -p "$GSDL3HOME/sites/localsite/collect"

if test -n "$interactive" -a -n "$use_shell" ; then
    test -z $SHELL && SHELL=sh
    echo "Starting an interactive shell for GSDL management" >&2
    $SHELL
fi