eika-shell.install


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_esh_target_user() {
  if [ -n "${SUDO_USER:-}" ] && [ "${SUDO_USER}" != "root" ]; then
    printf '%s\n' "$SUDO_USER"
    return 0
  fi

  return 1
}

_esh_init_user_files() {
  local user_name user_home config_home data_home

  if ! user_name="$(_esh_target_user)"; then
    cat <<'EOF'

EikaShell installed as: /usr/bin/esh

Per-user files were not created automatically because the target user
could not be detected.

To initialize manually, run as your normal user:

  mkdir -p ~/.config/esh/scripts
  mkdir -p ~/.local/share/esh/scripts
  touch ~/.config/esh/eshrc
  touch ~/.local/share/esh/history

Per-user config is read from:
  ~/.config/esh/eshrc

EOF
    return 0
  fi

  user_home="$(getent passwd "$user_name" | cut -d: -f6)"

  if [ -z "$user_home" ] || [ ! -d "$user_home" ]; then
    echo "EikaShell: could not determine home directory for user '$user_name'"
    return 0
  fi

  config_home="${user_home}/.config"
  data_home="${user_home}/.local/share"

  install -d -m755 "${config_home}/esh/scripts"
  install -d -m755 "${data_home}/esh/scripts"
  install -d -m755 "${data_home}/esh"

  if [ ! -f "${config_home}/esh/eshrc" ]; then
    : >"${config_home}/esh/eshrc"
  fi

  if [ ! -f "${data_home}/esh/history" ]; then
    : >"${data_home}/esh/history"
  fi

  chown -R "${user_name}:${user_name}" \
    "${config_home}/esh" \
    "${data_home}/esh"

  cat <<EOF

EikaShell installed as: /usr/bin/esh

Per-user files initialized for: ${user_name}

Config:
  ${config_home}/esh/eshrc

Script directories:
  ${config_home}/esh/scripts
  ${data_home}/esh/scripts

History:
  ${data_home}/esh/history

EOF
}

_esh_add_to_shells() {
  if [ ! -f /etc/shells ]; then
    : >/etc/shells
  fi

  if ! grep -qx '/usr/bin/esh' /etc/shells; then
    echo '/usr/bin/esh' >>/etc/shells
  fi
}

_esh_remove_from_shells() {
  if [ -f /etc/shells ]; then
    sed -i '\|^/usr/bin/esh$|d' /etc/shells
  fi
}

post_install() {
  _esh_add_to_shells
  _esh_init_user_files
}

post_upgrade() {
  _esh_add_to_shells
  _esh_init_user_files
}

post_remove() {
  _esh_remove_from_shells
}