#!/bin/sh

# We build where we are
SDK_BUILD_BASE=$(pwd -P)/output

# Source are located where this script is
SDK_SRC_BASE="$(cd "$(dirname "$0")"; pwd -P)"

SDK_MK=$SDK_SRC_BASE/sdk.mk

#echo SDK_BUILD_BASE=$SDK_BUILD_BASE
#echo SDK_SRC_BASE=$SDK_SRC_BASE
#echo SDK_MK=$SDK_MK

if [ -f "$SDK_MK" ]; 
then

echo "File $SDK_MK already exists. Remove it in order to configure a new build location:"
echo "rm $SDK_MK"
exit 1

else

if [ -z "$JAVA_HOME" ]
then
echo "Environment variable JAVA_HOME must be set"
exit 1
fi

# Create build directory, so that it can be used right away
# and we check whether we have the rights
mkdir -p $SDK_BUILD_BASE
if [ -f "$SDK_MK" ];
then
echo "Cannot create $SDK_BUILD_BASE, SDK configuration has failed."
exit 2
fi

# Generate sdk.mk
cat > "$SDK_MK" <<EOF
SDK_SRC_BASE := $SDK_SRC_BASE
SDK_BUILD_BASE := $SDK_BUILD_BASE
JAVA_HOME := $JAVA_HOME

include \$(SDK_SRC_BASE)/branch.mk
EOF


echo SDK was configured.
echo "JAVA_HOME        : $JAVA_HOME"
echo "Base for sources : $SDK_SRC_BASE"
echo "Base for builds  : $SDK_BUILD_BASE"
exit 0
fi