installs/postinstall.sh

#!/usr/bin/env bash

PACKAGE=postinstallation

# ─< Check if the given command exists silently >─────────────────────────────────────────
command_exists() {
  command -v "$@" >/dev/null 2>&1
}

# if command_exists "$PACKAGE"; then
#   echo_warning "$PACKAGE is already installed!"
#   echo_warning "Exiting now!"
#   exit 69
# fi

# WHY:
# This import will give you the following variables:
# _sudo="sudo -E" <- only if non root user
# distro = <distro name, like 'arch', 'debian', 'fedora'..>
# arch = bool
# fedora = bool
# opensuse =  bool....
# You can then use it for, `if $arch; then`
# Also this gives you the _install and _remove command, which installs/removes a package pased on the packagemanager/distro used.
# CAUTION:
# This only works for generic package names, like neovim, or vim, or tmux etc..
# not every package packagemanager has the same packagenames for their packages..
getImports() {
  local url="https://git.k4li.de/scripts/imports/raw/branch/main/distros.sh"
  local import="$(mktemp)"
  if command_exists curl; then
    curl -fsSL $url -o $import
  elif command_exists wget; then
    wget -o $import $url
  else
    echo "curl/wget is required, but missing.."
    exit 69
  fi

  source "$import"
  sleep 0.2
  rm "$import"
}

getDependencies() {
  echo_info "Checking build dependencies.."

  # INFO:
  # ╭─────────────────────────────────────────────────────────────────────────╮
  # │ You can define dependencies for various linux distros here. It will     │
  # │ automagically be pulled via the $pkgArray[$distro] variable             │
  # ╰─────────────────────────────────────────────────────────────────────────╯
  generalDeps=(
    "awk"
    "7zip"
    "bc"
    "btop"
    "curl"
    "fzf"
    "gawk"
    "git"
    "keychain"
    "make"
    "pv"
    "ripgrep"
    "rsync"
    "stow"
    "sudo"
    "unzip"
    "vi"
    "zsh"
    "zoxide"
  )

  generalBloat=(
    "nano"
  )

  depsDebian=(
    "eza"
  )

  depsFedora=()
  depsOpensuse=()
  depsArch=(
    "tldr"
    "oh-my-posh"
    "eza"
    "ytui-bin"
  )
  depsAlpine=()

  declare -A deps=(
    [debian]="depsDebian"
    [ubuntu]="depsUbuntu"
    [fedora]="depsFedora"
    [arch]="depsArch"
    [alpine]="depsAlpine"
    [opensuse]="depsOpensuse"
  )

  # INFO:
  # ╭────────────────────────────────────────────────────────────────╮
  # │ This variable stores the packages you provided for each distro │
  # ╰────────────────────────────────────────────────────────────────╯
  declare -n pkgArray="${deps[$distro]}"

  case "$distro" in
  debian | ubuntu | arch | fedora | alpine | opensuse)
    echo_info "Installing base packages.."

    checkAndInstall "${generalDeps[@]}"

    checkAndInstall "${pkgArray[@]}"
    ;;
  *)
    echo_error "There are no dependencies to install for $distro"
    return 69
    ;;
  esac
}

removeBloat() {
  if ! $arch; then
    echo_info "Removing bloat.."
    _remove "${generalBloat[@]}"
  fi
}

_nala() {
  if command_exists nala; then
    echo_info "Nala is already present, fetching mirros now!"
    echo_warning "(This might take a minute or two, depending on your internet speed)"
    $_sudo nala fetch --auto --assume-yes --https-only
  else
    echo_note "Nala is not installed on the system, do you want to install it now? (Y/n): "
    read -r inst_nala </dev/tty
    case "$inst_nala" in
    N | n)
      echo_warning "All right, continue without nala!"
      ;;
    *)
      echo_note "Installing nala.."
      $_sudo apt install nala --assume-yes &&
        echo_info "Fetching best mirrors"
      $_sudo nala fetch --auto --assume-yes --https-only
      ;;
    esac
  fi
}

main() {

  if $silent; then
    echo_warning "Executing script silently!"
  fi

  # Getting general dependencies
  if ! getDependencies; then
    echo_error "Error when installing dependencies.."
  fi

  # removing 'bloat'
  if ! removeBloat; then
    echo_error "Error when removing bloat.."
  fi

  case "$distro" in
  debian)
    # Path to sources.list
    sources_file="/etc/apt/sources.list"

    # Check if file exists
    if [ -f "$sources_file" ]; then
      # Comment out CD-ROM entries using sudo
      $_sudo sed -i 's/^[[:space:]]*deb[[:space:]]\+cdrom:/#&/' "$sources_file"
      echo_info "CD-ROM entries have been commented out in $sources_file"
    else
      if [ ! -f "/etc/apt/sources.d/sources.list" ]; then
        echo_error "Error: $sources_file not found"
      fi
    fi

    _nala
    ;;
  esac
}

checkAUR() {
  if ! command_exists yay && ! command_exists paru; then
    return 69
  else
    return 0
  fi
}

if command_exists pacman; then
  if ! checkAUR; then
    paruTempDir="$(mktemp -d)"
    # if ! command_exists paru; then
    echo "${YELLOW}Installing paru as AUR helper...${NC}"
    $_sudo pacman -S --needed --noconfirm base-devel git
    cd /opt && $_sudo git clone https://aur.archlinux.org/paru-bin.git "$paruTempDir/paru" && $_sudo chown -R "$USER": "$paruTempDir/paru"
    cd "$paruTempDir/paru" && makepkg --noconfirm -si
    echo "${GREEN}Paru installed${NC}"
    # else
    #   printf "%b\n" "${GREEN}Paru already installed${RC}"
    # fi
  fi
fi

if getImports; then
  # ─< package variable >───────────────────────────────────────────────────────────────────
  unset PACKAGE
  # ─< argument list variables >────────────────────────────────────────────────────────────
  silent=false

  PACKAGE=postinstallation

  main
fi