# RPM macros for packages installing systemd unit files
#
###
#
# When a package install systemd unit files, it should use the following macros:
#
# add %systemd_requires in the specfile
#
# %post
# %service_add demo.service demo1.service
#
# %preun
# %service_del_preun demo.service
#
# %postun
# %service_del_postun demo.service
# 
# 
# when migrating a package from sysvinit to systemd :
# %triggerun -- package_name < version_where_switch_occured
#   %service_migrate_to_systemd [ -l run_level ] service_name.service
# foobar.socket
# 
# -l <run_level> is optional
###

# This is for /bin/systemctl
%systemd_requires						\
Requires(pre): systemd						\
Requires(post): systemd						\
Requires(preun): systemd					\
Requires(postun): systemd					\

%_unitdir /lib/systemd/system

# On install, tell systemd to reload its unit files
%service_add()							\
test -n "$FIRST_ARG" || FIRST_ARG=$1				\
if [ $FIRST_ARG -eq 1 ]; then					\
# Initial installation						\
  /bin/systemctl daemon-reload >/dev/null 2>&1 || :		\
fi 								\
%{nil}

# On uninstall, disable and stop services
%service_del_preun()						\
test -n "$FIRST_ARG" || FIRST_ARG=$1				\
if [ $FIRST_ARG -eq 0 ]; then					\
# Package removal, not upgrade					\
 /bin/systemctl --no-reload disable %{?*} > /dev/null 2>&1 || :	\
 /bin/systemctl stop %{?*} > /dev/null 2>&1 || :		\
fi								\
%{nil}

# On uninstall, tell systemd to reload its unit files
%service_del_postun()					\
test -n "$FIRST_ARG" || FIRST_ARG=$1			\
/bin/systemctl daemon-reload >/dev/null 2>&1 || :	\
if [ $FIRST_ARG -ge 1 ]; then				\
# Package upgrade, not uninstall			\
  /bin/systemctl try-restart %{?*} >/dev/null 2>&1 || :	\
fi							\
%{nil}

%service_migrate_to_systemd_pre()							\
test -n "$FIRST_ARG" || FIRST_ARG=$1							\
# disable migration if initial install under systemd					\
if [ $FIRST_ARG -eq 1 ]; then 								\
  for service in %{?*} ; do								\
    touch "/var/lib/systemd/migrated/$service"						\
  done											\
else											\
  for service in %{?*} ; do								\
    if [ ! -e "/var/lib/systemd/migrated/$service" ]; then				\
  	services_to_migrate="$services_to_migrate $service"				\
    fi											\
  done											\
  if [ -n "$services_to_migrate" ]; then						\
    /usr/sbin/systemd-sysv-convert --save $services_to_migrate >/dev/null 2>&1 || :	\
  fi											\
fi											\
%{nil}

%service_migrate_to_systemd_post()							\
for service in %{?*} ; do								\
  if [ ! -e "/var/lib/systemd/migrated/$service" ]; then				\
	services_to_migrate="$services_to_migrate $service"				\
	touch "/var/lib/systemd/migrated/$service"					\
  fi											\
done											\
if [ -n "$services_to_migrate" ]; then							\
  /usr/sbin/systemd-sysv-convert --apply $services_to_migrate >/dev/null 2>&1 || :	\
  /bin/systemctl daemon-reload >/dev/null 2>&1 || :					\
fi											\
%{nil}

%service_migrate_to_systemd_postun()				\
test -n "$FIRST_ARG" || FIRST_ARG=$1				\
if [ $FIRST_ARG -eq 0 ]; then					\
  for service in %{?*} ; do					\
    rm -f "/var/lib/systemd/migrated/$service" 2> /dev/null	\
  done								\
fi								\
%{nil}