#!/usr/bin/env bash

# This script is a wrapper creating the same user inside container as the one
# running the ci_build.sh outside the container. It also set the home directory
# for the user inside container to match the same absolute path as the workspace
# outside of container.  Do not run this manually. It does not make sense. It is
# intended to be called by ci_build.sh only.

set -e

COMMAND=("$@")

if ! touch /this_is_writable_file_system; then
  echo "You can't write to your filesystem!"
  echo "If you are in Docker you should check you do not have too many images" \
      "with too many files in them. Docker has some issue with it."
  exit 1
else
  rm /this_is_writable_file_system
fi

getent group "${CI_BUILD_GID}" || addgroup --gid "${CI_BUILD_GID}" "${CI_BUILD_GROUP}"
getent passwd "${CI_BUILD_UID}" || adduser --gid "${CI_BUILD_GID}" --uid "${CI_BUILD_UID}" \
    --gecos "${CI_BUILD_USER} (generated by with_the_same_user script)" \
    --disabled-password --home "${CI_BUILD_HOME}" --quiet "${CI_BUILD_USER}"
usermod -a -G sudo "${CI_BUILD_USER}"
echo "${CI_BUILD_USER} ALL=(ALL) NOPASSWD:ALL" > /etc/sudoers.d/90-nopasswd-sudo

sudo -u "#${CI_BUILD_UID}" --preserve-env "LD_LIBRARY_PATH=${LD_LIBRARY_PATH}" \
"HOME=${CI_BUILD_HOME}" ${COMMAND[@]}