Michael Terry,

This script (manual-ctrl-c-test.sh) hung expecting a second argument.

mikodo@mikodo-desktop:~$ #!/bin/bash
mikodo@mikodo-desktop:~$ 
mikodo@mikodo-desktop:~$ cd /tmp
mikodo@mikodo-desktop:/tmp$ rm -rf backup* restore* ~/.cache/duplicity/test-backup1
mikodo@mikodo-desktop:/tmp$ 
mikodo@mikodo-desktop:/tmp$ echo "***** Do not disturb the control backup! "
***** Do not disturb the control backup! 
mikodo@mikodo-desktop:/tmp$ PASSPHRASE=foo duplicity --name=test-backup1 $1 file:///tmp/backup1
Command line error: Expected 2 args, got 1
Enter 'duplicity --help' for help screen.
mikodo@mikodo-desktop:/tmp$ 
mikodo@mikodo-desktop:/tmp$ echo -n "***** Now hit Ctrl-C at random intervals.  Hit any key to continue... "
***** Now hit Ctrl-C at random intervals.  Hit any key to continue... mikodo@mikodo-desktop:/tmp$ read -e DUMMY
echo
mikodo@mikodo-desktop:/tmp$ 
mikodo@mikodo-desktop:/tmp$ trap "pkill -INT duplicity" SIGINT
mikodo@mikodo-desktop:/tmp$ 
mikodo@mikodo-desktop:/tmp$ RC=4
mikodo@mikodo-desktop:/tmp$ while [ "$RC" == "4" ]; do
>     PASSPHRASE=foo duplicity --name=test-backup2 --volsize 1 -v5 $1 file:///tmp/backup2
>     RC=$?
>     echo "Exit == $RC"
>     if [ "$RC" != "4" ] && [ "$RC" != "0" ]; then
>         echo "Repeat? "
>         read -e REPLY
>         if [ "$REPLY" == "Y" ] || [ "$REPLY" == "y" ]; then
>             RC=4
>             continue
>         else
>             break
>         fi
>     fi
> done
Command line error: Expected 2 args, got 1
Enter 'duplicity --help' for help screen.
Using temporary directory /tmp/duplicity-sD7fa7-tempdir
Exit == 2
Repeat? 

mikodo@mikodo-desktop:/tmp$ trap - SIGINT
mikodo@mikodo-desktop:/tmp$ 
mikodo@mikodo-desktop:/tmp$ if [ "$RC" != "0" ]; then
>   echo "Finishing backup..."
>   PASSPHRASE=foo duplicity --name=test-backup2 $1 file:///tmp/backup2
> fi
Finishing backup...
Command line error: Expected 2 args, got 1
Enter 'duplicity --help' for help screen.
mikodo@mikodo-desktop:/tmp$ 
mikodo@mikodo-desktop:/tmp$ echo "Restoring backups..."
Restoring backups...
mikodo@mikodo-desktop:/tmp$ PASSPHRASE=foo duplicity --name=test-backup1 file:///tmp/backup1 /tmp/restore1
Local and Remote metadata are synchronized, no sync needed.
Last full backup date: none
Traceback (most recent call last):
  File "/usr/bin/duplicity", line 1241, in <module>
    with_tempdir(main)
  File "/usr/bin/duplicity", line 1234, in with_tempdir
    fn()
  File "/usr/bin/duplicity", line 1188, in main
    restore(col_stats)
  File "/usr/bin/duplicity", line 538, in restore
    restore_get_patched_rop_iter(col_stats)):
  File "/usr/bin/duplicity", line 560, in restore_get_patched_rop_iter
    backup_chain = col_stats.get_backup_chain_at_time(time)
  File "/usr/lib/python2.6/dist-packages/duplicity/collections.py", line 939, in get_backup_chain_at_time
    raise CollectionsError("No backup chains found")
CollectionsError: No backup chains found

mikodo@mikodo-desktop:/tmp$ PASSPHRASE=foo duplicity --name=test-backup2 file:///tmp/backup2 /tmp/restore2
Local and Remote metadata are synchronized, no sync needed.
Last full backup date: none
Traceback (most recent call last):
  File "/usr/bin/duplicity", line 1241, in <module>
    with_tempdir(main)
  File "/usr/bin/duplicity", line 1234, in with_tempdir
    fn()
  File "/usr/bin/duplicity", line 1188, in main
    restore(col_stats)
  File "/usr/bin/duplicity", line 538, in restore
    restore_get_patched_rop_iter(col_stats)):
  File "/usr/bin/duplicity", line 560, in restore_get_patched_rop_iter
    backup_chain = col_stats.get_backup_chain_at_time(time)
  File "/usr/lib/python2.6/dist-packages/duplicity/collections.py", line 939, in get_backup_chain_at_time
    raise CollectionsError("No backup chains found")
CollectionsError: No backup chains found

mikodo@mikodo-desktop:/tmp$ 
mikodo@mikodo-desktop:/tmp$ echo "Diff between $1 and /tmp/restore1"
Diff between  and /tmp/restore1
mikodo@mikodo-desktop:/tmp$ diff -qr $1 /tmp/restore1 2>&1 | grep -v "No such file or directory"
diff: missing operand after `/tmp/restore1'
diff: Try `diff --help' for more information.
mikodo@mikodo-desktop:/tmp$ 
mikodo@mikodo-desktop:/tmp$ echo "Diff between /tmp/restore1 and /tmp/restore2"
Diff between /tmp/restore1 and /tmp/restore2
mikodo@mikodo-desktop:/tmp$ diff -qr /tmp/restore1 /tmp/restore2 2>&1 | grep -v "No such file or directory"
mikodo@mikodo-desktop:/tmp$