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deltas: Add and document no-deltas-in-summary config option 

By default this is FALSE to keep existing clients working.
This commit is contained in:
Alexander Larsson 2020-09-01 12:26:17 +02:00
parent effde3d513
commit 024ef1d756
2 changed files with 45 additions and 23 deletions
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14
man/ostree.repo-config.xml
View File

@ -249,6 +249,20 @@ Boston, MA 02111-1307, USA.
costly).
</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>no-deltas-in-summary</varname></term>
<listitem><para>Boolean value controlling whether OSTree should skip
putting an index of available deltas in the summary file. Defaults to false.
</para>
<para>
Since 2020.7 OSTree can use delta indexes outside the summary file,
making the summary file smaller (especially for larger repositories). However
by default we still create the index in the summary file to make older clients
work. If you know all clients will be 2020.7 later you can enable this to
save network bandwidth.
</para></listitem>
</varlistentry>
</variablelist>
</refsect1>

8
src/libostree/ostree-repo.c
View File

@ -5749,6 +5749,8 @@ ostree_repo_regenerate_summary (OstreeRepo *self,
* commits from working.
*/
g_autoptr(OstreeRepoAutoLock) lock = NULL;
gboolean no_deltas_in_summary = FALSE;
lock = _ostree_repo_auto_lock_push (self, OSTREE_REPO_LOCK_EXCLUSIVE,
cancellable, error);
if (!lock)
@ -5781,6 +5783,12 @@ ostree_repo_regenerate_summary (OstreeRepo *self,
}
}
if (!ot_keyfile_get_boolean_with_default (self->config, "core",
"no-deltas-in-summary", FALSE,
&no_deltas_in_summary, error))
return FALSE;
if (!no_deltas_in_summary)
{
g_autoptr(GPtrArray) delta_names = NULL;
g_auto(GVariantDict) deltas_builder = OT_VARIANT_BUILDER_INITIALIZER;