alcedo/nakefile.nim

import nake
import os, osproc, strutils

let
  standardOptions = """--skipCfg -d:version:"""" & execProcess("git rev-parse --abbrev-ref HEAD").strip() & 
    "|" & execProcess("git rev-parse HEAD").strip() & """" 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."
  withDir("kernel"):
    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)."
  withDir("kernel"):
    direShell "nim cc -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 -no-shutdown -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"