build

#!/usr/bin/env bash
# Copyright 2023-2024 GlitchyByte
# SPDX-License-Identifier: MIT-0

# Builds project.

# [Setup]
set -u # Exit with an error if a variable is used without being set.
set -e # Exit if any command returns an error.
# Capture caller directory and script directory.
readonly calling_dir="${PWD}"
readonly script_dir="$(cd "$(dirname "$0")" && pwd)"
# Go to script directory and load utilities.
cd "${script_dir}"
. ./_gcolors

# [Main]
# Usage.
printUsage() {
  echo "Usage: build [Debug|Release|MinSizeRel|RelWithDebInfo] [clean]"
  cd "${calling_dir}"
  exit 1
}

# Accept 1 or more parameters.
if [ $# -lt 1 ]; then
  printUsage
fi

# If there is more than 1 parameter, the 2nd must be "clean".
if [ $# -gt 1 ]; then
  if [ "$2" == "clean" ]; then
    readonly clean="yes"
  else
    printUsage
  fi
else
  readonly clean="no"
fi

# Capture valid flavor.
readonly flavor="$1"
if [[ "${flavor}" != "Debug" && "${flavor}" != "Release" && "${flavor}" != "MinSizeRel" && "${flavor}" != "RelWithDebInfo" ]]; then
  printUsage
fi

# Dir constants.
cd "${script_dir}/code"
readonly buildConfigDir="build/build.cmake"
readonly binDir="build/bin"

# Make sure build dir exists.
if [ ! -d "build" ]; then
  mkdir "build"
fi

if [ "$clean" == "yes" ]; then
  echo "${c_bold}${cf_black}Refreshing configuration...${c_reset}"
  # Remove build dir.
  if [ -d "${buildConfigDir}" ]; then
    rm -dr "${buildConfigDir}"
  fi
  # Clean bin dir.
  if [ -d "${binDir}" ]; then
    rm -dr "${binDir}"
    mkdir "${binDir}"
  fi
fi

# Configure.
echo "${c_bold}${cf_black}Configuring: ${cf_white}${flavor}${c_reset}"
cmake -DCMAKE_BUILD_TYPE=${flavor} -B "${buildConfigDir}" -S .

# Build.
echo "${c_bold}${cf_black}Building: ${cf_white}${flavor}${c_reset}"
cmake --build "${buildConfigDir}" --config ${flavor} --parallel

# [Teardown]
cd "${calling_dir}"

# Done!
echo "${cf_green}${c_bold}Build done!${c_reset}"