[systemd-commits] man/systemd.unit.xml
Lennart Poettering
lennart at kemper.freedesktop.org
Mon Jun 30 16:34:24 PDT 2014
man/systemd.unit.xml | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
New commits:
commit cdf0c7abf8594db37bbb0720f7c18a1765465110
Author: Lennart Poettering <lennart at poettering.net>
Date: Tue Jul 1 01:33:56 2014 +0200
man: document ConditionNeedsUpdate=
diff --git a/man/systemd.unit.xml b/man/systemd.unit.xml
index 032879a..960fb90 100644
--- a/man/systemd.unit.xml
+++ b/man/systemd.unit.xml
@@ -900,6 +900,7 @@
<term><varname>ConditionSecurity=</varname></term>
<term><varname>ConditionCapability=</varname></term>
<term><varname>ConditionACPower=</varname></term>
+ <term><varname>ConditionNeedsUpdate=</varname></term>
<term><varname>ConditionPathExists=</varname></term>
<term><varname>ConditionPathExistsGlob=</varname></term>
<term><varname>ConditionPathIsDirectory=</varname></term>
@@ -1068,6 +1069,33 @@
all AC connectors are disconnected
from a power source.</para>
+ <para><varname>ConditionNeedsUpdate=</varname>
+ takes one of <filename>/var</filename>
+ or <filename>/etc</filename> as
+ argument, possibly prefixed with a
+ <literal>!</literal> (for inverting
+ the condition). This condition may be
+ used to conditionalize units on
+ whether the specified directory
+ requires an update because
+ <filename>/usr</filename>'s
+ modification time is newer than the
+ stamp file
+ <filename>.updated</filename> in the
+ specified directory. This is useful to
+ implement offline updates of the
+ vendor operating system resources in
+ <filename>/usr</filename> that require
+ updating of <filename>/etc</filename>
+ or <filename>/var</filename> on the
+ next following boot. Units making use
+ of this condition should order
+ themselves before
+ <citerefentry><refentrytitle>systemd-update-done.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
+ to make sure they run before the stamp
+ files's modification time gets reset
+ indicating a completed update.</para>
+
<para>With
<varname>ConditionPathExists=</varname>
a file existence condition is
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