#!/bin/sh

# ----------------- lux Operating System -----------------
OBJ=build
COMPILER=i586-elf-gcc
LINKER=i586-elf-ld
BUILD_VER="0.1.1"

BuildC()
{
	Percent=10

	while read descript
	do
		read line
		read empty
		echo "[ $Percent%] KERNEL :: $descript"
		File=${line##*/}
		File=${File%%.*}
		$COMPILER -Wall -Wextra -O -nostdinc -fno-builtin -I./Kernel/include -c -o $OBJ/$File.o $line  -nostdlib -nostartfiles -nodefaultlibs
		Percent=$(($Percent + 1)) #Increase PERCENT
	done < $1

	return 0
}

BuildAsm()
{
	Percent=85

	while read descript
	do
		read line
		read empty
		echo "[ $Percent%] KERNEL :: $descript"
		File=${line##*/}
		File=${File%%.*}
		nasm -f elf -o $OBJ/$File.o $line
		Percent=$(($Percent + 1)) #Increase PERCENT
	done < $1

	return 0
}

# Calculate version number
read buildno < ./scripts/version.txt
buildno=$(($buildno + 1))
echo $buildno > ./scripts/version.txt
echo "#define OS_BUILD \"$BUILD_VER.$buildno\"" > ./Kernel/include/version.h

# On the screen
echo "========================================================"
echo "LUX Operating System build $BUILD_VER.$buildno"
echo "========================================================"

# Clean up
echo "[  1%] CLEANUP"
rm $OBJ/* 2>/dev/null

# Build kernel
BuildC "filelistC.txt"
BuildAsm "filelistAsm.txt"

# Link
echo "[ 95%] LINKING..."
$LINKER -T link.ld $OBJ/*.o

# Make floppy image
echo "[ 97%] WRITING FLOPPY IMAGE..."
mount A: /mnt/floppy 2>/dev/null >/dev/null
cp kernel.bin /mnt/floppy/

# DONE
echo "[100%] DONE!"


exit 0