doc/flatpak: Document FLATPAK_SYSTEM_CACHE_DIR

This environment variable has been used for a while; it's just
undocumented. Copy some information from a comment in flatpak-dir.c.

Closes: #2841
Approved by: matthiasclasen
This commit is contained in:
Matthew Leeds
2019-04-19 16:06:13 -07:00
committed by Atomic Bot
parent b1d4e19646
commit 5e710cb995

View File

@@ -562,6 +562,18 @@
time by --localstatedir or --with-system-install-dir).
</para></listitem>
</varlistentry>
<varlistentry>
<term><envar>FLATPAK_SYSTEM_CACHE_DIR</envar></term>
<listitem><para>
The location where temporary child repositories will be created during pulls
into the system-wide installation. If this is not set, a directory in
<filename>/var/tmp/</filename> is used. This is useful because it is more
likely to be on the same filesystem as the system repository (thus increasing
the chances for e.g. reflink copying), and we can avoid filling the user's
home directory with temporary data.
</para></listitem>
</varlistentry>
<varlistentry>
<term><envar>FLATPAK_CONFIG_DIR</envar></term>