dup: use duplicity's --extra-clean option when necessary

This is necessary to get rid of unnecessary old cache files when cleaning up,
when using duplicity >=0.6.01 that depends on local caching.

Closes: #572721

1 files changed, 5 insertions, 0 deletions

diff --git a/handlers/dup.in b/handlers/dup.in
index ffae48c..c8dfcba 100644
--- a/handlers/dup.in
+++ b/handlers/dup.in
@@ -165,6 +165,11 @@ if [ "$incremental" == "no" ]; then
    fi
 fi
 
+### Cleanup options
+if [ "$duplicity_major" -ge 0 -a "$duplicity_minor" -ge 6 -a "$duplicity_sub" -ge 1 ]; then
+   execstr_options="${execstr_options} --extra-clean"
+fi
+
 ### Temporary directory
 precmd=
 if [ -n "$tmpdir" ]; then