build

#!/bin/bash
#
# build - compile and optionally install btop components
#

build_btop() {
  # Repo: https://github.com/doctorfree/btop
  #
  # Fork of Repo: https://github.com/aristocratos/btop
  #
  # Build Dependencies:
  # On Ubuntu 20.04
  #   sudo apt update -y
  #   sudo apt upgrade -y
  #   sudo apt install coreutils git make tar zstd
  #   sudo apt install -y build-essential
  #   sudo apt install -y gcc-10 g++-10 cpp-10
  #   sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-10 100 \
  #                            --slave /usr/bin/g++ g++ /usr/bin/g++-10 \
  #                            --slave /usr/bin/gcov gcov /usr/bin/gcov-10
  #

  [ -f bin/btop ] || make STATIC=true STRIP=true
  chmod +x bin/btop

  [ "${INSTALL}" ] && sudo PREFIX=${PREFIX} make install
}

usage() {
    printf "\nUsage: ./build [-i] [-p prefix] [-u] project [project2 ...]"
    printf "\nWhere:"
    printf "\n\t-i indicates install"
    printf "\n\t-p prefix specifies installation prefix (default /usr)"
    printf "\n\t-u displays this usage message and exits\n"
    printf "\nNo arguments: build btop, configure with prefix=/usr, build\n"
    exit 1
}

PROJ=btop
INSTALL=
PREFIX=/usr
while getopts "ip:u" flag; do
    case $flag in
        i)
            INSTALL=1
            ;;
        p)
            PREFIX="$OPTARG"
            ;;
        u)
            usage
            ;;
    esac
done
shift $(( OPTIND - 1 ))

if [ $# -eq 0 ]
then
  PROJECTS=btop
else
  PROJECTS="$*"
fi
for project in ${PROJECTS}
do
  case "${project}" in
    btop)
      PROJ=btop
      build_btop
      ;;
    *)
      echo "Unsupported project build: ${project}"
      continue
      ;;
  esac
done