#!/bin/sh -e

# PCSX2 - PS2 Emulator for PCs
# Copyright (C) 2002-2011  PCSX2 Dev Team
#
# PCSX2 is free software: you can redistribute it and/or modify it under the terms
# of the GNU Lesser General Public License as published by the Free Software Found-
# ation, either version 3 of the License, or (at your option) any later version.
#
# PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
# without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
# PURPOSE.  See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along with PCSX2.
# If not, see <http://www.gnu.org/licenses/>.

# This script is a small wrapper to the PCSX2 exectuable. The purpose is to
# 1/ launch PCSX2 from the same repository every times.
# Rationale: There is no guarantee on the directory when PCSX2 is launched from a shortcut.
#            This behavior trigger the first time wizards everytime...
# 2/ Change LD_LIBRARY_PATH to uses 3rdparty library
# Rationale: It is nearly impossible to have the same library version on all systems. So the
#            easiest solution it to ship library used during the build.

current_script=$0

[ $current_script = "launch_pcsx2_linux.sh" ] || [ $current_script = "sh" ] || [ $current_script = "bash" ] && \
    echo "Error the script was directly 'called'" && \
    echo "Use either /absolute_path/launch_pcsx2_linux.sh or ./relative_path/launch_pcsx2_linux.sh" && exit 1;

# Note: sh (dash on debian) does not support pushd, popd...
# Save current directory
PWD_old=$PWD

# Go to the script directory
cd `dirname $current_script`

# Allow to ship .so library with the build to avoid version issue 
if [ -e 3rdPartyLibs ]
then
    if [ -z $LD_LIBRARY_PATH ]
    then
        OLD_LD_LIBRARY_PATH=""
        export LD_LIBRARY_PATH="./3rdPartyLibs"
    else
        OLD_LD_LIBRARY_PATH="$LD_LIBRARY_PATH"
        export LD_LIBRARY_PATH="./3rdPartyLibs:$LD_LIBRARY_PATH"
    fi 
fi

# Test plugin depencencies
if [ -x `which ldd` ]
then
    for plugin in `find plugins -iname "lib*.so"`
    do
        if [ `ldd $plugin | grep -c found` != 0 ]
        then
            echo "ERROR the plugin ($plugin) miss some dependencies"
            echo "    `ldd $plugin | grep found`"
            echo ""
        fi
    done
fi

# Launch PCSX2
if [ -x pcsx2 ]
then
    ./pcsx2
else
    echo "Error PCSX2 not found"
    echo "Maybe the script was directly 'called'"
    echo "Use either /absolute_path/launch_pcsx2_linux.sh or ./relative_path/launch_pcsx2_linux.sh"
    exit 1
fi

# Be a good citizen. Restore the shell context
cd $PWD_old
if [ -z $OLD_LD_LIBRARY_PATH ]
then
    unset LD_LIBRARY_PATH
else
    export LD_LIBRARY_PATH="$OLD_LD_LIBRARY_PATH"
fi

