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Merge pull request #6801 from johnlinp/master

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man: explicitly distinguish "implicit dependencies" and "default dependencies"
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Lennart Poettering
2017-09-14 21:41:13 +02:00
committed by GitHub
parent b74e0b1565 45f09f939b
commit 21f0669163
15 changed files with 353 additions and 207 deletions
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man/systemd.exec.xml
+19 -16
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@@ -81,27 +81,30 @@
</refsect1>
<refsect1>
<title>Automatic Dependencies</title>
<title>Implicit Dependencies</title>
<para>A few execution parameters result in additional, automatic
dependencies to be added.</para>
<para>A few execution parameters result in additional, automatic dependencies to be added:</para>
<para>Units with <varname>WorkingDirectory=</varname>, <varname>RootDirectory=</varname>, <varname>RootImage=</varname>,
<varname>RuntimeDirectory=</varname>, <varname>StateDirectory=</varname>, <varname>CacheDirectory=</varname>,
<varname>LogsDirectory=</varname> or <varname>ConfigurationDirectory=</varname> set automatically gain dependencies
of type <varname>Requires=</varname> and <varname>After=</varname> on all mount units required to access the specified paths.
This is equivalent to having them listed explicitly in <varname>RequiresMountsFor=</varname>.</para>
<itemizedlist>
<listitem><para>Units with <varname>WorkingDirectory=</varname>, <varname>RootDirectory=</varname>, <varname>RootImage=</varname>,
<varname>RuntimeDirectory=</varname>, <varname>StateDirectory=</varname>, <varname>CacheDirectory=</varname>,
<varname>LogsDirectory=</varname> or <varname>ConfigurationDirectory=</varname> set automatically gain dependencies
of type <varname>Requires=</varname> and <varname>After=</varname> on all mount units required to access the specified paths.
This is equivalent to having them listed explicitly in <varname>RequiresMountsFor=</varname>.</para></listitem>
<para>Similar, units with <varname>PrivateTmp=</varname> enabled automatically get mount unit dependencies for all
mounts required to access <filename>/tmp</filename> and <filename>/var/tmp</filename>. They will also gain an
automatic <varname>After=</varname> dependency on
<citerefentry><refentrytitle>systemd-tmpfiles-setup.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para>
<listitem><para>Similar, units with <varname>PrivateTmp=</varname> enabled automatically get mount unit dependencies for all
mounts required to access <filename>/tmp</filename> and <filename>/var/tmp</filename>. They will also gain an
automatic <varname>After=</varname> dependency on
<citerefentry><refentrytitle>systemd-tmpfiles-setup.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>.</para></listitem>
<para>Units whose standard output or error output is connected to <option>journal</option>, <option>syslog</option>
or <option>kmsg</option> (or their combinations with console output, see below) automatically acquire dependencies
of type <varname>After=</varname> on <filename>systemd-journald.socket</filename>.</para>
<listitem><para>Units whose standard output or error output is connected to <option>journal</option>, <option>syslog</option>
or <option>kmsg</option> (or their combinations with console output, see below) automatically acquire dependencies
of type <varname>After=</varname> on <filename>systemd-journald.socket</filename>.</para></listitem>
</itemizedlist>
</refsect1>
<!-- We don't have any default dependency here. -->
<refsect1>
<title>Options</title>
@@ -615,7 +618,7 @@
<para>If the standard output (or error output, see below) of a unit is connected to the journal, syslog or the
kernel log buffer, the unit will implicitly gain a dependency of type <varname>After=</varname> on
<filename>systemd-journald.socket</filename> (also see the automatic dependencies section above).</para>
<filename>systemd-journald.socket</filename> (also see the "Implicit Dependencies" section above).</para>
<para>This setting defaults to the value set with
<option>DefaultStandardOutput=</option> in