From dc105f307e4f4e67daef3a487472ea62447271cd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
Date: Sat, 21 Nov 2015 21:08:43 -0500
Subject: [PATCH] Improve filetriggers to run in all required situations

---
 systemd.spec | 30 +++++++++++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

diff --git a/systemd.spec b/systemd.spec
index dd5e09c..cd10f9a 100644
--- a/systemd.spec
+++ b/systemd.spec
@@ -346,11 +346,37 @@ test -z "$(grep -L xml:lang %{buildroot}%{_datadir}/polkit-1/actions/org.freedes
 
 #############################################################################################
 
+# This will run after any package is initially installed or
+# upgraded. We care about the case where a package is initially
+# installed, because other cases are covered by the scriptlets below,
+# so sometimes we will reload needlessly.
+
 %transfiletriggerin -- /usr/lib/systemd/system /etc/systemd/system
 systemctl daemon-reload &>/dev/null || :
 
+# On removal, we need to run daemon-reload after any units have been
+# removed. %transfilepostun would be ideal, but it does not get
+# executed for some reason.
+# On upgrade, we need to run daemon-reload after any new unit files
+# have been installed, but before %postun scripts in packages get
+# executed. %transfiletriggerun gets the right list of files
+# but it is invoked too early (before changes happen).
+# %filetriggerpostun happens at the right time, but it fires for
+# every package.
+# To execute the reload at the right time, we create a state
+# file in %transfiletriggerun and execute the daemon-reload in
+# the first %filetriggerpostun.
+
 %transfiletriggerun -- /usr/lib/systemd/system /etc/systemd/system
-systemctl daemon-reload &>/dev/null || :
+mkdir -p %{_localstatedir}/lib/rpm-state/systemd
+touch %{_localstatedir}/lib/rpm-state/systemd/needs-reload
+
+%filetriggerpostun -- /usr/lib/systemd/system /etc/systemd/system
+if [ -e %{_localstatedir}/lib/rpm-state/systemd/needs-reload ]; then
+    rm %{_localstatedir}/lib/rpm-state/systemd/needs-reload || :
+    rmdir %{_localstatedir}/lib/rpm-state/systemd || :
+    systemctl daemon-reload || :
+fi
 
 %pre
 getent group cdrom >/dev/null 2>&1 || groupadd -r -g 11 cdrom >/dev/null 2>&1 || :
@@ -715,6 +741,8 @@ getent passwd systemd-journal-upload >/dev/null 2>&1 || useradd -r -l -g systemd
 %{pkgdir}/boot/efi/*.stub
 %endif
 
+%ghost %dir %{_localstatedir}/lib/rpm-state/systemd
+
 %files libs
 %{_libdir}/security/pam_systemd.so
 %{_libdir}/libnss_myhostname.so.2