configure.sh

#!/usr/bin/env -S bash
# -*- Mode:Shell-script; Coding:us-ascii-unix; fill-column:158 -*-
#########################################################################################################################################################.H.S.##
##
# @file      configure.sh
# @author    Mitch Richling http://www.mitchr.me/
# @date      2025-01-30
# @brief     Just a little helper for people accustomed to GNU autotools.@EOL
# @std       bash
# @copyright 
#  @parblock
#  Copyright (c) 2024-2025, Mitchell Jay Richling <http://www.mitchr.me/> All rights reserved.
#
#  Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
#
#  1. Redistributions of source code must retain the above copyright notice, this list of conditions, and the following disclaimer.
#
#  2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions, and the following disclaimer in the documentation
#     and/or other materials provided with the distribution.
#
#  3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without
#     specific prior written permission.
#
#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
#  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
#  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
#  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
#  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#  @endparblock
#########################################################################################################################################################.H.E.##

#---------------------------------------------------------------------------------------------------------------------------------------------------------------
if [ ! -e ../CMakeLists.txt ]; then
  echo "ERROR(configure.sh): Missing ../CMakeLists.txt"
  if [ -e ./CMakeLists.txt ]; then
    echo "ERROR(configure.sh): It looks like you are running from the base of the repo"
    if [ -d ./build ]; then
      echo "ERROR(configure.sh): cd into the build directory to run this script"
    else
      echo "ERROR(configure.sh): Create a 'bulid' directory and run this script in it"
    fi
  fi
  echo ''
  echo "ERROR(configure.sh): Use the -h option for help"
  exit
fi

OPATHS=('MRaster'     \
        'MRPTree'     \
        'MRMathCPP'   \
       );

#---------------------------------------------------------------------------------------------------------------------------------------------------------------
if [[ "${@}" == *'-h'* ]]; then
  cat <<EOF

  Run this script from the 'build' directory.

  If you don't have a 'build' directory yet, then create one!

  Use: configure.sh [configure options] [cmake arguments]

    Configure Options
     - -C Clean the build directory before running cmake (asks for conformation)
     - -F Clean the build directory before running cmake (no conformation)

    Common Cmake Arguments:
     - Target -- leave it off to get the default
       - -G 'MSYS Makefiles'           <-- Default on MSYS2
       - -G 'Visual Studio 17 2022'
       - -G 'Unix Makefiles'           <-- Default on Linux ('Linux' means 'Not MSYS2')
       - -G Ninja
     - Compiler -- leave it off to get the default
       - -DCMAKE_CXX_COMPILER=clang++
       - -DCMAKE_CXX_COMPILER=g++      <-- Default for 'MSYS Makefiles'
       - -DCMAKE_CXX_COMPILER=g++-##   <-- Default for 'Unix Makefiles' if /usr/bin/g++-[0-9][0-9] exists
                                           in which case the highest numbered version is selected.
                                           This code base needs at least GCC-14.
       - -DCMAKE_CXX_COMPILER=g++      <-- Default for 'Unix Makefiles' if /usr/bin/g++-[0-9][0-9] missing
       - -DCMAKE_CXX_COMPILER=cl.exe   <-- Default for 'Visual Studio 17 2022'
       - -DCMAKE_CXX_COMPILER=nvc++    <-- NVIDIA HPC C++ Compiler
       - -DCMAKE_CXX_COMPILER=icpx     <-- InteloneAPI DPC++/C++ Compiler
EOF

  if grep -Eq '^OPTION\([A-Z0-9_]+' ../CMakeLists.txt; then
     echo '     - Optional features'
     sed -En 's/^[#O]PTION\(([A-Z0-9_]+)( +)"([^"]+)".*(ON|OFF).*$/       - -D\1=[ON|OFF] \2 \3 (Default: \4)/p' < ../CMakeLists.txt
  fi

  OPH='     - Search Paths For MR* Components'
  for opath in "${OPATHS[@]}"; do
    if grep -q "${opath}_PATH" ../CMakeLists.txt; then
      if [ -n "$OPH" ]; then
        echo "$OPH"
      fi
      OPH=''
      echo "       - -D${opath}_PATH=<PATH>"
    fi
  done

exit
fi

if [ "$1" == "-C" ]; then
  shift
  CLEAN_DIR='YES'
  CLEAN_ASK='YES'
elif [ "$1" == "-F" ]; then
  shift
  CLEAN_DIR='YES'
  CLEAN_ASK='NO'
else
  CLEAN_DIR='NO'
  CLEAN_ASK='NO'
fi

#---------------------------------------------------------------------------------------------------------------------------------------------------------------
if [ "$(basename $(pwd))" == "build" ]; then
  #
  # If we need to clean, then CLEAN!!
  if [ "$CLEAN_DIR" == 'YES' ]; then
    if [ "$CLEAN_ASK" == 'YES' ]; then
      ls
      rm -rI *
    else
      rm -rf *
    fi
    echo 'This is the build directory.  You should run CMake inside this directory to build project targets.' >> README.md
  fi
  #
  # Figure out target
  CMAKE_TARGET=''
  CMAKE_TARGET_SRC='AUTO'
  for arg in "$@"; do
    if [ -z "$CMAKE_TARGET" -a "$CMAKE_TARGET_SRC" == 'COMMAND_LINE' ]; then
      CMAKE_TARGET="$arg"
    fi
    if [ "$arg" == "-G" ]; then
      CMAKE_TARGET_SRC='COMMAND_LINE'
    fi
  done
  if [ "$CMAKE_TARGET" == 'LOOKING' ]; then
    echo "ERROR(configure.sh): Found -G but no following target argument"
  fi
  # No -G, figure out default!
  if [ -z "$CMAKE_TARGET" ]; then
    if [ -n "$MSYSTEM" ]; then
      CMAKE_TARGET='MSYS Makefiles'
    else
      CMAKE_TARGET='Unix Makefiles'
    fi
  fi
  #
  # Figure out the -DCMAKE_CXX_COMPILER argument
  CMAKE_CARG=''
  if [[ "$@" != *'-DCMAKE_CXX_COMPILER'* ]]; then
    if [ "$CMAKE_TARGET" == 'MSYS Makefiles' ]; then
      CMAKE_CARG='-DCMAKE_CXX_COMPILER=g++.exe'
    fi
    if [ "$CMAKE_TARGET" == 'Unix Makefiles' ]; then
      HIGCC=$(ls /usr/bin/gcc-[0-9][0-9] 2>/dev/null | sort | tail -n 1)
      if [ -x "$HIGCC" ]; then
        CMAKE_CARG="-DCMAKE_CXX_COMPILER=${HIGCC}"
      else
        CMAKE_CARG='-DCMAKE_CXX_COMPILER=g++'
      fi
    fi
  fi
  if [ "$DEBUG" == 'DEBUG' ]; then
    echo $CMAKE_TARGET
    echo $CMAKE_TARGET_SRC
    echo $CMAKE_CARG
  fi
  #
  # Run cmake
  if [ "$CMAKE_TARGET_SRC" == "COMMAND_LINE" ]; then
    if [ -z "$CMAKE_CARG" ]; then
      echo AA cmake '-DCMAKE_EXPORT_COMPILE_COMMANDS=1' "$@" ../
      cmake '-DCMAKE_EXPORT_COMPILE_COMMANDS=1' "$@" ../
    else
      echo BB cmake '-DCMAKE_EXPORT_COMPILE_COMMANDS=1' "$CMAKE_CARG" "$@" ../
      cmake '-DCMAKE_EXPORT_COMPILE_COMMANDS=1' "$CMAKE_CARG" "$@" ../
    fi
  else
    if [ -z "$CMAKE_CARG" ]; then
      echo CC cmake '-DCMAKE_EXPORT_COMPILE_COMMANDS=1' -G "$CMAKE_TARGET" "$@" ../
      cmake '-DCMAKE_EXPORT_COMPILE_COMMANDS=1' -G "$CMAKE_TARGET" "$@" ../
    else
      echo DD cmake '-DCMAKE_EXPORT_COMPILE_COMMANDS=1' -G "$CMAKE_TARGET" "$CMAKE_CARG" "$@" ../
      cmake '-DCMAKE_EXPORT_COMPILE_COMMANDS=1' -G "$CMAKE_TARGET" "$CMAKE_CARG" "$@" ../
    fi
  fi
else
  echo "ERROR(configure.sh): Must run from build directory"
fi