discover_package_manager

#! /bin/bash

function discover_package_manager() {
  if [ x"$1" = x"osx" ]; then
    command -v brew >/dev/null
    if [ $? -eq 0 ]; then
      discover_package_manager_ret="brew"
      brew_idir=$(brew --prefix)
      brew_path=$(which brew)
      brew_user=$(stat -f '%Su' $brew_path)
      if [ x$"brew_user" == root ]; then
        discover_package_ret="sudo brew"
        return
      else
        if [ ! -w $brew_idir ]; then
          echo -e "\033[43;30;1;5mWARNING: \033[0m $brew_idir is not writtable, brew require that $brew_idir is writtable and $brew_idir/bin is in your PATH, otherwise it will be not possible to install with brew"
          commands[0]="sudo chown -R $USER $brew_idir && chmod -R u+w $brew_idir"
          possible_solutions "${commands[@]}"
        fi
      fi
      if [ ! -w  ]; then
        echo -e "\033[43,33;5mWARNING: \033[0m $brew_idir is not writtable, brew require that $brew_idir is writtable and $brew_idir/bin is in your PATH, otherwise it will be not possible to install with brew"
        sleep 10
      fi
      return
    fi
    command -v port >/dev/null
    if [ $? -eq 0 ]; then
      discover_package_manager_ret="sudo port"
      return
    else
      discover_package_manager_ret=""
      return
    fi
  elif [ x"$1" = x"linux"  ]; then

    command -v zypper >/dev/null
    if [ $? -eq 0 ]; then
      discover_package_manager_ret="zypper -n"
      return
    fi
    command -v yum >/dev/null
    if [ $? -eq 0 ]; then
      discover_package_manager_ret="yum"
      return
    fi
    command -v apt-get >/dev/null
    if [ $? -eq 0 ]; then
      discover_package_manager_ret="apt-get"
      return
    fi
    command -v pacman >/dev/null
    if [ $? -eq 0 ]; then
      discover_package_manager_ret="pacman"
      return
    else
      discover_package_manager_ret=""
      return
    fi
  fi
}

function pc_install_command() {
  if [ x"$1" == x"pacman" ]; then
    pc_install_command_ret="pacman -Sy"
  else
    pc_install_command_ret="$1 install"
  fi
}