Merge pull request #75 from csmithATsquiz/tmpdir

add an option to set the tmpdir for duplicity to use.

duplicity-backup.conf.example

@@ -269,3 +269,6 @@ MAIL="mailx"     # default command for Linux mail
 # printed to the logfile.  This way, you can see if the problem is with the
 # script or with duplicity.
 #ECHO=$(which echo)
+
+# Set the tmpdir for duplicity to use.
+#TMPDIR="/tmp"

duplicity-backup.sh

@@ -177,6 +177,10 @@ if [[ -n "$FTP_PASSWORD" ]]; then
   export FTP_PASSWORD
 fi
 
+if [[ -n "$TMPDIR" ]]; then
+  export TMPDIR
+fi
+
 # Ensure a trailing slash always exists in the log directory name
 LOGDIR="${LOGDIR%/}/"