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

2 files changed, 9 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 2fbe7ed..7b8d383 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -2,6 +2,10 @@ version 0.9.8 -- UNRELEASED
     handler changes
 	sys:
 	 . Only run mdadm if RAID devices actually exist (Closes: #572450)
+	dup:
+	 . Use duplicity's --extra-clean option to get rid of unnecessary old
+	   cache files when cleaning up. This is enabled when using duplicity
+	   0.6.01 or newer, that depends on local caching (Closes: #572721)
 
 version 0.9.7 -- January 27, 2010
     backupninja changes
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