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#!/bin/bash
# get the absolute path of the executable
SELF_PATH=$(cd -P -- "$(dirname -- "$0")" && pwd -P) && SELF_PATH="$SELF_PATH/$(basename -- "$0")"
# resolve symlinks
while [ -h "$SELF_PATH" ]; do
DIR=$(dirname -- "$SELF_PATH")
SYM=$(readlink -- "$SELF_PATH")
SELF_PATH=$(cd -- "$DIR" && cd -- $(dirname -- "$SYM") && pwd)/$(basename -- "$SYM")
done
# NARWHAL_HOME is the 2nd ancestor directory of this shell script
NARWHAL_HOME=$(dirname -- "$(dirname -- "$SELF_PATH")")
# use Rhino as the default if none is specified in narwhal.conf
NARWHAL_DEFAULT_PLATFORM="rhino"
# load narwhal.conf if it exists
if [ -f "$NARWHAL_HOME/narwhal.conf" ]; then
source "$NARWHAL_HOME"/narwhal.conf
fi
# if NARWHAL_PLATFORM isn't yet set, set it to the default platform, and export it
if [ -z "$NARWHAL_PLATFORM" ]; then
NARWHAL_PLATFORM=$NARWHAL_DEFAULT_PLATFORM
fi
export NARWHAL_HOME
# build the executable name for the platform
EXECUTABLE_NAME="narwhal-$NARWHAL_PLATFORM"
# search for the platform home directory
# try narwhal.conf setting
if [ "$NARWHAL_PLATFORM_HOME" ]; then
export NARWHAL_PLATFORM_HOME
# try relative
elif [ -f "$NARWHAL_HOME/platforms/$NARWHAL_PLATFORM/bin/$EXECUTABLE_NAME" ]; then
export NARWHAL_PLATFORM_HOME="$NARWHAL_HOME/platforms/$NARWHAL_PLATFORM"
# try $PATH
elif which -s "$EXECUTABLE_NAME"; then
export NARWHAL_PLATFORM_HOME=$(dirname -- "$(dirname -- "$EXECUTABLE_NAME")")
else
echo "Can't find executable for $NARWHAL_PLATFORM"
exit 1
fi
exec "$NARWHAL_PLATFORM_HOME"/bin/"$EXECUTABLE_NAME" "$@"
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