Re: [Duplicity-talk] recovering

[Peter Schuller]

> Which version of duplicity? So one can match line numbers.

The OP is running 0.4.2 on Debian (based on off-list communication).

The stack trace indicates get_manifest() on a backup set is returning None. I 
followed the code down to get_remote_manifest(), and found a possible culprit 
for silent failure:

        def get_remote_manifest(self):
                """Return manifest by reading remote manifest on backend"""
                assert self.remote_manifest_name
                # Following by MDR.  Should catch if remote encrypted with      
                                                                                
       
                # public key w/o secret key                                     
                                                                                
       
                try: manifest_buffer = 
self.backend.get_data(self.remote_manifest_name)
                except IOError, message:
                        if message.args[0] == "GnuPG exited non-zero, with 
code 131072":
                                return None
                        else: raise
                return manifest.Manifest().from_string(manifest_buffer)

What's MDR? 

My gues based on the phrasing of that message, is that it intends to catch the 
case where duplicity/gnupg is running without access to the secret key. 
However - why would one want ot silently supress this?

What is the intended method of restoring with duplicity when the backup has 
been done with asymetric keys? I have never done this, and 
neither --encrypt-key nor --sign-key seem to be suitable, based on the 
phrasing of the manpage.

Ingrid, does it help if you explicitly use --sign-key during the restoration 
process? I suspect it will, though the manpage only explicitly states it is 
needed to verify signatures. 

-- 
/ Peter Schuller

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