#! /bin/sh
# preinst script for signal-cli

set -e

addsignaluser() {
    # creating signal-cli group if he isn't already there
    if ! getent group signal-cli >/dev/null; then
        addgroup --system signal-cli >/dev/null
    fi

    # creating signal-cli user if he isn't already there
    if ! getent passwd signal-cli >/dev/null; then
        adduser \
          --system \
          --disabled-login \
          --ingroup signal-cli \
          --no-create-home \
          --home /nonexistent \
          --gecos "signal-cli user" \
          --shell /bin/false \
          nginx  >/dev/null
    fi
}

case "$1" in
    install)
        addsignaluser
        ;;
    upgrade)
        addsignaluser
        ;;

    abort-upgrade)
        ;;

    *)
        echo "preinst called with unknown argument \`$1'" >&2
        exit 0
        ;;
esac



exit 0