build/go-python-package-scripts/postinst

   1 #!/bin/sh
   2 # Copyright (C) The Arvados Authors. All rights reserved.
   3 #
   4 # SPDX-License-Identifier: AGPL-3.0
   5
   6 set -e
   7
   8 # Detect rpm-based systems: the exit code of the following command is zero
   9 # on rpm-based systems
  10 if /usr/bin/rpm -q -f /usr/bin/rpm >/dev/null 2>&1; then
  11     # Red Hat ("%{...}" is interpolated at package build time)
  12     pkg="%{name}"
  13     pkgtype=rpm
  14     prefix="${RPM_INSTALL_PREFIX}"
  15 else
  16     # Debian
  17     script="$(basename "${0}")"
  18     pkg="${script%.postinst}"
  19     pkgtype=deb
  20     prefix=/usr
  21 fi
  22
  23 case "${pkgtype}-${1}" in
  24     deb-configure | rpm-1)
  25         dest_dir="/lib/systemd/system"
  26         if ! [ -d "${dest_dir}" ]; then
  27             exit 0
  28         fi
  29
  30         # Find the unit file we need to install.
  31         unit_file="${pkg}.service"
  32         for dir in \
  33             "${prefix}/share/doc/${pkg}" \
  34             "${dest_dir}"; do
  35             if [ -e "${dir}/${unit_file}" ]; then
  36                 src_dir="${dir}"
  37                 break
  38             fi
  39         done
  40         if [ -z "${src_dir}" ]; then
  41             echo >&2 "WARNING: postinst script did not find ${unit_file} anywhere."
  42             exit 0
  43         fi
  44
  45         # Install/update the unit file if necessary.
  46         if [ "${src_dir}" != "${dest_dir}" ]; then
  47             cp "${src_dir}/${unit_file}" "${dest_dir}/" || exit 0
  48         fi
  49
  50         # Enable service, and make sure systemd re-reads the unit
  51         # file, in case we changed it.
  52         if [ -e /run/systemd/system ]; then
  53             systemctl daemon-reload || true
  54             eval "$(systemctl -p UnitFileState show "${pkg}")"
  55             case "${UnitFileState}" in
  56                 disabled)
  57                     # Failing to enable or start the service is not a
  58                     # package error, so don't let errors here
  59                     # propagate up.
  60                     systemctl enable "${pkg}" || true
  61                     systemctl start "${pkg}" || true
  62                     ;;
  63                 enabled)
  64                     systemctl reload-or-try-restart "${pkg}" || true
  65                     ;;
  66             esac
  67         fi
  68         ;;
  69 esac