install

#!/usr/bin/env bash
# Validation/Usage
print-usage() {
  echo -e "NAME\n\t$0 - install dotfiles"
  echo -e "SYNOPSIS\n\t$0 [--help] (<bundle> | <layer>) [<bundle>...] [<layer>...]\n"
  echo -e "OPTIONS\n"
  echo -e "\t<layer>..."
  echo -e "\t    Folders to be stowed to ~ (not starting with '@')."
  echo -e "\t<bundle>..."
  echo -e "\t    Bundles to be installed (starting with '@')."
  echo -e "\t    Bundles contain instructions to install more than one layer and"
  echo -e "\t    may install OS packages/programs."
  echo -e "EXAMPLE\n\t$0 @minimal @wsl ptpython\n"
  echo -en "NOTES\n\tEnv vars SKIP_PACKAGES, SKIP_UPDATE and VERBOSE "
  echo -e  "can be used to control the installation.\n"
}

if [[ "$*" == *--help* ]]; then
  print-usage
  exit 0
fi

if [ "$#" -lt 1 ]; then
  echo -e "************************ MISSING ARGUMENTS ************************"
  echo -e "*    Please provide at least one argument (e.g. \"@default\")       *"
  echo -e "*******************************************************************\n\n"
  print-usage
  exit 1
fi

# Setup vars
DIR=$(pwd)
args=($@)
bundles=($({ IFS=$'\n'; echo "${args[*]}"; } | grep '@'))
extra_layers=($({ IFS=$'\n'; echo "${args[*]}"; } | grep -v '@'))

cd "$(dirname "${BASH_SOURCE[0]}")" || {
  echo "Unable to switch to ${BASH_SOURCE[0]}"
  exit 1
}
BASE_DIR=$(pwd)

log () { echo -e "$*"; }

# Import Libraries
for lib in $BASE_DIR/+lib/*.sh; do
  # shellcheck source=/dev/null
  source "$lib"
done

if [ -z "${SKIP_UPDATE+x}" ]; then
  log "Updating submodules ..."
  { set +x;
    git submodule update --init --recursive;
  }
fi

log "Bootstraping installation of bundles ..."
bootstrap_scripts=($(find-scripts 'bootstrap.sh' "${bundles[@]}"))
for script in "${bootstrap_scripts[@]}"; do
  log "Running $script ..."
  # shellcheck source=/dev/null
  bash "$script"
done

log "Installing layers ..."
layers=($(read-list '*.stow' "${bundles[@]}"))
layers=("${layers[@]}" "${extra_layers[@]}")
stow_cmd="${VERBOSE+"stow -v -R"}"
stow_cmd="${stow_cmd:-"stow -R"}"
{ set +x;
  $stow_cmd "${layers[@]}";
}

log "Compile zsh files ..."
make pre-compile

if [ -z "${SKIP_PACKAGES+x}" ]; then
  log "Installing packages ..."
  # SKIP_PACKAGES is not set
  brew_pkgs=($(read-list '*.brew' "${bundles[@]}"))
  if (( ${#brew_pkgs[@]} )); then
    bootstrap-brew
    { set +x;
      brew install "${brew_pkgs[@]}";
    }
  fi

  if [ -z "${SKIP_SYSTEM_PACKAGES+x}" ]; then
    if command-exists apt-get; then
      apt_pkgs=($(read-list '*.apt' "${bundles[@]}"))
      if (( ${#apt_pkgs[@]} )); then
        { set +x;
          sudo apt-get update;
          sudo apt-get install "${apt_pkgs[@]}";
        }
      fi
    fi

    if command-exists pacman; then
      pacman_pkgs=($(read-list '*.packman' "${bundles[@]}"))
      if (( ${#pacman_pkgs[@]} )); then
        { set +x;
          sudo pacman -Syu;
          sudo pacman -S "${pacman_pkgs[@]}";
        }
      fi

      trizen_pkgs=($(read-list '*.trizen' "${bundles[@]}"))
      if (( ${#trizen_pkgs[@]} )); then
        bootstrap-trizen
        { set +x;
          trizen -S "${trizen_pkgs[@]}";
        }
      fi
    fi
  else
    log "Skipping installation of packages at system level ..."
  fi

  if command-exists python3; then
    pipx_pkgs=($(read-list '*.pipx' "${bundles[@]}"))
    if (( ${#pipx_pkgs[@]} )); then
      { set +x;
        bootstrap-pipx;
        printf '%s\n' "${pipx_pkgs[@]}" | xargs -n1 pipx install
      }
    fi
    pip_pkgs=($(read-list '*.pip' "${bundles[@]}"))
    { set +x;
      pip3 install --user --update "${pipx_pkgs[@]}";
    }
  fi

  if command-exists ruby; then
    gem_pkgs=($(read-list '*.gem' "${bundles[@]}"))
    if (( ${#gem_pkgs[@]} )); then
      export PATH="$(ruby -r rubygems -e 'puts Gem.user_dir')/bin:$PATH"
      { set +x;
        gem install --user-install "${gem_pkgs[@]}";
      }
    fi
  fi
else
  log "Skipping installation of packages ..."
fi

log "Finishing installation of bundles ..."
finish_scripts=($(find-scripts 'finish.sh' "${bundles[@]}"))
for script in "${finish_scripts[@]}"; do
  log "Running $script ..."
  # shellcheck source=/dev/null
  bash "$script"
done

exit 0

cd "$DIR"