#! /usr/bin/env bash

# Note: shouldn't be executed directly, src_dir must be set.

# Common rc.exe driver that expects the SDKBIN and INCLUDE variables to be set
# for the specific MSVC version/configuration.

trap "{ exit 1; }" ERR
set -o errtrace # Trap in functions.

function info () { echo "$*" 1>&2; }
function error () { info "$*"; exit 1; }

source "$src_dir/msvc-common/msvc-common"

# Translate absolute paths from POSIX to Windows. Use bash array to store
# arguments in case they contain spaces.
#
# This needs to be done for both certain option values and arguments.
# Arguments are tricky in that unless we recognize every option, and option
# may look a lot like an absolute POSIX path (e.g., /nologo). The heuristics
# that we are going to use here is that if the argument starts with / and
# contains at least one more /, then we consider it an argument. Otherwise --
# an options. We will also explicitly recognize certain options which may not
# fit this scheme well.
#
# Note that the order of the cases is important. Specifically, we want, e.g.,
# /D before /D*.
#
# Note that rc.exe /? is missing some options that are documented in MSDN.
#
args=()

while [ $# -gt 0 ]; do
  case ${1^^} in # Uppercase for case-insensitive comparison.

    # /I <dir>
    #
    [/-]I)
      args=("${args[@]}" "$1")
      shift
      args=("${args[@]}" "$(translate $1)")
      shift
      ;;

    # /I<dir>
    #
    [/-]I*)
      args=("${args[@]}" "$(split_translate 2 $1)")
      shift
      ;;

    # /f[om] <file>
    #
    [/-]F[OM])
      args=("${args[@]}" "$1")
      shift
      args=("${args[@]}" "$(translate $1)")
      shift
      ;;

    # /f[om]<file>
    #
    [/-]F[OM]*)
      args=("${args[@]}" "$(split_translate 3 $1)")
      shift
      ;;

    # /q <file>
    #
    [/-]Q)
      args=("${args[@]}" "$1")
      shift
      args=("${args[@]}" "$(translate $1)")
      shift
      ;;

    # /q<file>
    #
    [/-]Q*)
      args=("${args[@]}" "$(split_translate 2 $1)")
      shift
      ;;

    # Handle other options with separate values. This makes sure we don't try
    # to path-translate them.
    #
    [/-]D | \
    [/-]U)
      args=("${args[@]}" "$1")
      shift
      args=("${args[@]}" "$1")
      shift
      ;;

    # Handle other options with combined values that could possibly be
    # interpreted as paths, for example /DFOO=foo/bar.
    #
    [/-]D*)
      args=("${args[@]}" "$1")
      shift
      ;;

    # Option or argument.
    #
    *)
      # If contains at least two slashes, treat it as a path.
      #
      if [[ "$1" == /*/* ]]; then
	args=("${args[@]}" "$(translate $1)")
      else
	args=("${args[@]}" "$1")
      fi
      shift
      ;;
  esac
done

export INCLUDE

# rc.exe always sends diagnostics to stdout.
#
msvc_exec 1 "$SDKBIN\\rc.exe" "${args[@]}"