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man: Add documentation for generator path environment variables 

This adds documentation for the SYSTEMD_GENERATOR_PATH and
SYSTEMD_ENVIRONMENT_GENERATOR_PATH variables to the systemd man page
grouped with the existing SYSTEMD_UNIT_PATH.

Also added is a description about how these variables work, i.e. that a
trailing : can be used to prepend paths to the usual set.
This commit is contained in:
Benjamin Berg 2020-03-04 11:30:31 +01:00
parent 96b10a13f2
commit 5b058473fe
1 changed files with 10 additions and 2 deletions
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12
man/systemd.xml
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@ -649,9 +649,17 @@
<varlistentry>
<term><varname>$SYSTEMD_UNIT_PATH</varname></term>
<term><varname>$SYSTEMD_GENERATOR_PATH</varname></term>
<term><varname>$SYSTEMD_ENVIRONMENT_GENERATOR_PATH</varname></term>
<listitem><para>Controls where systemd looks for unit
files.</para></listitem>
<listitem><para>Controls where systemd looks for unit files and
generators.</para>
<para>These variables may contain a list of paths, separated by colons
(<literal>:</literal>). When set, if the list ends with an empty
component (<literal>...:</literal>), this list is prepended to the
usual set of of paths. Otherwise, the specified list replaces the usual
set of paths.
</para></listitem>
</varlistentry>
<varlistentry>