import nake
import os

const
  standardOptions = """--skipCfg --forceBuild --cc:clang --deadCodeElim:on --gc:regions --boundChecks:on --path:"kernel/arch/i386" --cpu:i386 --os:standalone --passC:"-ffreestanding -nostdlib --target=i386-pc-none-elf -march=i386" --passL:"-ffreestanding -target i386 -nostdlib" kernel/kernel.nim"""
  outputFile = "myos.bin"

task "clean", "Removes build files.":
  removeFile("boot.o")
  removeFile("serial.log")
  removeDir("nimcache")
  removeFile(outputFile)
  echo "Done."

task "bootloader", "Builds the bootloader.":
  echo "Building bootloader."
  direShell "nasm -felf32 kernel/arch/i386/boot.s -o boot.o"
  echo "Done."

task "build", "Builds the operating system.":
  runTask("clean")
  runTask("bootloader")
  echo "Compiling and linking."
  direShell "nim cc -o", outputFile, standardOptions
  runTask("checkMultiboot")
  echo "Done."

task "build-release", "Builds the operating system, release mode.":
  runTask("clean")
  runTask("bootloader")
  echo "Compiling and linking (release mode)."
  direShell "nim cc --skipCfg -d:release -o:", outputFile, standardOptions
  runTask("checkMultiboot")
  echo "Done."

task "checkMultiboot", "Checks the grub multiboot header.":
  echo "Checking multiboot."
  direShell "grub-file --is-x86-multiboot", outputFile
  echo "Multibook check successful."

task "debug", "Runs the operating system using QEMU with debug build and flags.":
  runTask("build")
  echo "Running in Qemu."
  direShell "qemu-system-i386 -kernel", outputFile ,"-serial stdio -no-reboot -d int,cpu-reset"

task "run", "Runs the operating system using QEMU.":
  runTask("build-release")
  echo "Running in Qemu."
  direShell "qemu-system-i386 -kernel", outputFile ,"-serial stdio"