run

#!/bin/sh

build() {
  # abort if one of the following commands fails
  set -e

  # the target directory the function should work on
  target=$1

  # create and/or clean build dir
  mkdir -p $target/build
  rm -f $target/build/*

  # build everthing that has the _start label
  for src in `grep -rl $target -e 'global _start'` ; do
    obj=$target/build/`basename $src .s`.o
    nasm -i lib/src -i $target/src  -f elf64 -g -F dwarf -o $obj $src
    ld -o ${obj%.o} $obj
    rm $obj
  done

  # the test function bellow should not abort if one of the tests fails 
  set +e
}

_test() {
  for bin in $1/build/*.test ; do
    output=`$bin`
    exval=$?
    echo `[ $exval -eq 0 ] && echo passed  || echo failed "($exval)"`: $bin
  done
}

case $1 in
  test)  _test $2 ;;
  build) build $2 ;;
  *)  echo "run: unknown command"
esac