install.sh

#!/usr/bin/env bash

# -----------------------------
# Script for installing pacman.
# by: Maxython
# https://github.com/Maxython/pacman-for-termux
# -----------------------------

info(){
  echo -e "\033[1;36m\n# $1\033[0m"
}

commet(){
  echo -e "\033[0;32m# $1\033[0m"
}

error(){
  echo -e "\033[1;31m# $1\033[0m"
}

get_arch() {
  arch=`uname -m`

  if [[ $arch = "armv7" || $arch = "armv7l" ]]; then
    echo "armv7h"
  elif [ $arch != "aarch64" ]; then
    echo "arm"
  else
    echo "aarch64"
  fi
}

get_arch_termux() {
  if [ `uname -m` = "aarch64" ]; then
    echo "aarch64"
  else
    echo "arm"
  fi
}

install_packages(){
  info 'System and package updates.'
  apt update -y
  apt upgrade -y

  info 'Installing packages.'
  apt install build-essential asciidoc gpgme nettle wget curl proot bsdtar bash-completion ninja -y
  pip install meson
}

install_pacman(){
  dir=pacman-${type}
  if [[ ! -d $dir ]]; then
    error 'Not found: pacman.'
    exit 2
  fi
  cd $dir
  case $1 in
    "")
      info 'Installing pacman.'
      meson build
      sed -i 's/cc $ARGS -o $out $in $LINK_ARGS/cc $ARGS -o $out $in $LINK_ARGS -landroid-glob/' build/build.ninja
      ninja -C build install
    ;;

    "mes")
      info 'Running meson build.'
      meson build
    ;;

    "com")
      info 'Compiling pacman.'
      sed -i 's/cc $ARGS -o $out $in $LINK_ARGS/cc $ARGS -o $out $in $LINK_ARGS -landroid-glob/' build/build.ninja
      ninja -C build
    ;;

    "ins")
      info 'Installing pacman.'
      ninja -C build install
    ;;

    *)
      error "The command '$1' was not found.  For more information, enter './install.sh help'."
      exit 1
    ;;
  esac

  cd ..
}

settings_pacman(){
  if [[ "$type" == "arch" ]]; then
    info 'Setting up termux.'
    bin=$PREFIX/bin
    for i in termux-chroot login
    do
      rm $bin/$i
      wget -P $bin --inet4-only https://raw.githubusercontent.com/Maxython/arch-packages-for-termux/main/termux-commands/usr/bin/$i
      chmod +x $bin/$i
    done
    sed -i 's/ARGS="$ARGS -0"/#ARGS="$ARGS -0"/' $bin/termux-chroot

    etc=$PREFIX/etc
    rm $etc/profile
    wget -P $etc --inet4-only https://raw.githubusercontent.com/Maxython/arch-packages-for-termux/main/termux-commands/usr/etc/profile

    info 'Removing deb packages.'
    apt-get purge clang python ninja bash-completion bsdtar -y
    apt autoremove -y
    apt install libarchive -y

    [[ -f ~/.termux/shell ]] && rm ~/.termux/shell

    arch=`get_arch`
  else
    arch=`get_arch_termux`
  fi
  sed -i "s/Architecture = auto/Architecture = ${arch}/" $PREFIX/etc/pacman.conf
  if [[ "$type" == "termux" ]]; then
    pacman -Syy
  fi
}

settings2_pacman(){
  if [[ "$type" == "arch" ]]; then
    if [ `id -u` != 0 ]; then
      error "This stage of the installation should be done with a root user."
      exit 1
    fi

    arch=`get_arch`

    set +e
    pacman -Q pacman-mirrorlist > /dev/null 2>&1
    if [ $? = "1" ]; then
      set -e
      info 'Pacman settings.'
      wget --inet4-only http://mirror.archlinuxarm.org/aarch64/core/pacman-mirrorlist-20210918-1-any.pkg.tar.xz
      pacman -U pacman-mirrorlist-20210918-1-any.pkg.tar.xz --noconfirm
      rm pacman-mirrorlist-20210918-1-any.pkg.tar.xz
      conf=$PREFIX/etc/pacman.conf
      sed -i 's/#this//' $conf
      pacman -Syu
    fi
    set -e

    info 'The first stage of installing packages.'
    wget https://github.com/Maxython/arch-packages-for-termux/releases/download/packages-v2021.08.19/packages-${arch}.tar.xz
    tar xJf packages-${arch}.tar.xz
    cd packages
    pacman -U * --needed --noconfirm --overwrite "*"
    cd ..
    rm -fr packages*
    pacman -Syy

    if [ ! -f /etc/locale.conf ]; then
      set +e
      clear
      info 'Setting locale.'
      commet 'To continue, you must enter the ISO 639-1 language code (eg: en).'
      while :
      do
        read -p "Search: " search
        list=$(/system/bin/grep "#${search}" /etc/locale.gen | /system/bin/grep UTF-8 | /system/bin/sed 's/#//g')
        if [[ -n $list ]]; then
          j=1
          for i in $list
          do
            if [ $i != "UTF-8" ]; then
              echo "$j) $i"
              locales="$locales $i"
              j=$(( j+1 ))
            fi
          done
          list=($locales)
          commet 'Select the language of your region.'
          commet "Enter 'repeat' to repeat the search."
          while :
          do
            read -p "choose: " int
            if [ $int != "repeat" ]; then
              value=${list[$(( int-1 ))]}
              if [[ -n $value ]]; then
                /system/bin/sed -i "s/#$value/$value/" /etc/locale.gen
                export PATH="/system/bin:/usr/bin"
                locale-gen
                export PATH="/usr/bin"
                echo "LANG=${value}" > /etc/locale.conf
                end="0"
                break
              else
                error 'Invalid index selected.'
              fi
            else
              break
            fi
          done
          [[ -n $end ]] && break
        else
          error 'Language not found.'
        fi
      done
      clear
      set -e
    fi
    source /etc/locale.conf

    info 'The second stage of installing packages.'
    pacman -S base-devel base --needed --noconfirm --overwrite "*"
  else
    info "You have pacman termux type, nothing to configure."
  fi
}

set -e

clear

selec=$HOME/pacman-for-termux/selec.conf
if [[ ! -f $selec ]]; then
  info "Select the pacman view, they are configured for a specific environment and for a specific type of command installation.  The script will also set up the environment for a particular kind of pacman."
  PS3='Please enter your choice: '
  options=("Arch" "Termux" "Quit")
  select opt in "${options[@]}"
  do
    case $opt in
      "Arch")
        echo "type=arch" > $selec
        break
        ;;

      "Termux")
        echo "type=termux" > $selec
        break
        ;;

      "Quit")
        error "$selec file not found"
        exit 2
        ;;
      *) error "invalid option $REPLY";;
    esac
  done
fi
source $selec


case $1 in
  "")
    install_packages
    install_pacman $2
    settings_pacman
    ;;

  "help")
    info 'Help'
    commet './install.sh [com1] [com2]'
    commet 'Installer script for pacman on termux.'
    commet 'The latest available version of pacman is 6.0.0 .'
    commet 'Commands with [auto] highlighted will be executed automatically if nothing is specified.'
    commet 'When running a specific command, only that command will be executed.'
    commet 'If an error occurs during installation or pacman does not work correctly, write there:'
    commet 'https://github.com/Maxython/pacman-for-termux/issues'
    commet 'Commands:'
    commet '  upd[auto] - installing and updating packages.'
    commet '  ins[auto] - installing pacman.'
    commet '    mes[auto] - Running meson build.'
    commet '    com[auto] - Compiling pacman.'
    commet '    ins[auto] - Installing pacman.'
    commet '  set[auto] - setting up pacman.'
    commet '  set2 - second part of pacman setup (only run after termux reboot).'
    commet '  test - сompiling pacman for a test.'
    ;;

  "upd")
    install_packages
    ;;

  "ins")
    install_pacman $2
    ;;

  "set")
    settings_pacman
    ;;

  "set2")
    settings2_pacman
    ;;

  "test")
    info 'Compiling pacman for a test (testing it).'
    install_pacman mes
    install_pacman com
    ;;

  *)
    error "The command '$1' was not found.  For more information, enter './install.sh help'."
    exit 1
    ;;
esac


info 'Done.'