install-standalone

#!/usr/bin/env bash

# used for running individual installation scripts located in ./meta/configs/ folder
# usage:
# ./install-standalone nvim
# ./install-standalone tmux
# ./install-standalone zsh
#
# or
# ./install-standalone nvim tmux zsh
#
# NOTE: to run a config in sudo, then add '-sudo' as a suffix of the config to run.
# Ex: ./install-standalone apt-sudo
# check: https://github.com/ecarlson94/dotbot-template#for-installing-single-configurations
#
# ./meta/configs/ folder will contain .yaml files that will be used as config. It
# has the same directives as the default dotbot install-conf.yaml
# check: https://github.com/anishathalye/dotbot#full-example
#
# obtained from https://github.com/anishathalye/dotbot/wiki/Tips-and-Tricks#install-standalone
# author ecarlson94

set -e    # exit on error

BASE_CONFIG="base"
CONFIG_SUFFIX=".yaml"

META_DIR="meta"
CONFIG_DIR="configs"
PROFILES_DIR="profiles"

DOTBOT_DIR="dotbot"
DOTBOT_BIN="bin/dotbot"

BASE_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"


cd "${BASE_DIR}"
git submodule update --init --recursive

# load env variables.
# load XDG dotfile locations. https://wiki.archlinux.org/title/XDG_Base_Directory
source tools/zsh/.zshenv

# ------------------------------------------------------------------------------------------------ #
# Verify dotbot config files exist.
# Also checks if the config file exists if it has a suffix of '-sudo'. Ex: apt-sudo
# Checks if the file exists in meta/configs/ folder

sudoSuffix="-sudo"
exitIfConfigNotFound=false    # used as a flag to exit IF a config file is NOT found
for config in ${@}; do
  # remove suffix '-sudo' in the variable $config
  # check if the config filepath doesn't exist
  #   print message
  #   flag variable to exit

  # remove suffix '-sudo'
  # obtained from https://stackoverflow.com/a/16623897/3053548
  config=${config%"$sudoSuffix"}
  configFilepath="${BASE_DIR}/${META_DIR}/${CONFIG_DIR}/${config}${CONFIG_SUFFIX}"
  if [[ ! -e $configFilepath ]]; then
    echo -e "Dotbot config \\033[1;31m$configFilepath \\033[0mDOESN'T exists"

    exitIfConfigNotFound=true
  fi
done

# exit if a config filepath is NOT found
if [[ $exitIfConfigNotFound == true ]]; then
  echo -e "\nexiting"
  exit 1
fi

# cleanup variables
unset sudoSuffix
unset exitIfConfigNotFound

# ------------------------------------------------------------------------------------------------ #

for config in ${@}; do
  # create temporary file
  configFile="$(mktemp)"
  suffix="-sudo"
  echo -e "$(<"${BASE_DIR}/${META_DIR}/${BASE_CONFIG}${CONFIG_SUFFIX}")\n$(<"${BASE_DIR}/${META_DIR}/${CONFIG_DIR}/${config%"$suffix"}${CONFIG_SUFFIX}")" > "$configFile"

  cmd=("${BASE_DIR}/${META_DIR}/${DOTBOT_DIR}/${DOTBOT_BIN}" -d "${BASE_DIR}" -c "$configFile")

  # print a line depending on the terminal width
  # https://unix.stackexchange.com/a/425158
  # https://stackoverflow.com/a/17030976/3053548
  printf '%0.s=' $(seq 1 $(stty size | awk '{print $2}'))
  printf '%0.s=' $(seq 1 $(stty size | awk '{print $2}'))
  echo -e "\nConfigure $config\n"

  if [[ $config == *"sudo"* ]]; then
      # - pass tools/zsh/.zshenv file when running in sudo to load ENV
      #   - Why?
      #     - some of the dotbot configs are using using sudo and XDG envs defined in ./tools/zsh/.zshenv
      # - set HOME to current home user path
      #   - Why?
      #     - when running in sudo, the XDG env tools/zsh/.zshenv are not not loaded
      # 
      # - passing ENV in sudo https://unix.stackexchange.com/a/396528
      # - setting BASH_ENV https://unix.stackexchange.com/a/429235
      # - setting env HOME : assuming dotfiles repo is in the Home folder
      #   - requires full directory path
      cmd=(sudo env HOME="$(echo $HOME)" BASH_ENV="./tools/zsh/.zshenv" "${cmd[@]}")
  fi

  "${cmd[@]}"
  rm -f "$configFile"
done

cd "${BASE_DIR}"