Re: [Duplicity-talk] local_path.exists() fails when testing a new backend

[address@hidden]

Hi,

I don't remember exactly the version number that I'm using, but I took
it recently (few weeks ago) from your upcoming 0.7 devel branch.
I can update it again if you want, no problems.

On 9 July 2014 23:45, Michael Terry <address@hidden> wrote:
> Are you using at least r992 of trunk?  It fixed an issue with that error
> message.
> -mt
>
>
> On 9 July 2014 18:33, address@hidden <address@hidden> wrote:
>>
>> Hi guys,
>>
>> sorry if I ask again, but has anyone an idea why that backend call is
>> failing?
>> I would really appreciate your help. We are really close to complete
>> the backend for Skylable client and this would be an additional
>> opportunity also for Duplicity.
>>
>> Thank you so much for your help.
>>
>> Cheers.
>>
>>
>> On 3 July 2014 21:32, address@hidden <address@hidden> wrote:
>> > Hi guys,
>> >
>> > as you probably know I'm working on the Duplicity backend for Skylable
>> > service. I'm basing my work on your "devel" branch (0.7.x) and you can
>> > find my work in progress here:
>> > https://github.com/andreagrandi/duplicity-sx
>> >
>> > Now, let's go to the issue. It looks like I've problems implementing
>> > the _get method of my backend.
>> >
>> > On high level, this is the error I get when I execute a command like
>> > this:
>> >
>> > PYTHONPATH=. ./bin/duplicity -v9 sx://indian.skylable.com/vol-andy80/
>> > ./test-bkp
>> >
>> > output here: http://pastebin.com/JF4LuWXZ
>> >
>> > Debugging my code with ipdb I can see this:
>> >
>> >>
>> >> /home/andrea/Downloads/duplicity/duplicity/backends/sxbackend.py(39)_get()
>> >      38         commandline = "sxcp {0} {1}".format(remote_path,
>> > local_path.name)
>> > ---> 39         self.subprocess_popen(commandline)
>> >      40
>> >
>> > ipdb> n
>> >> /home/andrea/Downloads/duplicity/duplicity/backend.py(541)get()
>> >     540             self.backend._get(remote_filename, local_path)
>> > --> 541             if not local_path.exists():
>> >     542                 raise BackendException(_("File %s not found
>> > locally after get "
>> >
>> > ipdb> local_path.exists()
>> > ipdb> local_path
>> > (() /tmp/duplicity-V8v6rE-tempdir/mktemp-0tsmWi-2 None)
>> >
>> > as you can see the .exists() method doesn't return anything, while
>> > inspecting the object it contains a file that I've verified being
>> > existing (the only two things that I don't understand are: is that
>> > empty tumple at the beginning ok? It's the None at the end ok?):
>> >
>> > andrea-Inspiron-660:duplicity andrea [master] $ ls -al
>> > /tmp/duplicity-V8v6rE-tempdir/mktemp-0tsmWi-2
>> > -rw-rw-r-- 1 andrea andrea 4455795 lug  3 21:20
>> > /tmp/duplicity-V8v6rE-tempdir/mktemp-0tsmWi-2
>> >
>> > The code of course fails because tha exists() fails:
>> >
>> >> /home/andrea/Downloads/duplicity/duplicity/backend.py(542)get()
>> >     541             if not local_path.exists():
>> > --> 542                 raise BackendException(_("File %s not found
>> > locally after get "
>> >     543                                          "from backend") %
>> > util.ufn(local_path.name))
>> >
>> > Now my question is: why the .exists() fails if the path exists? What's
>> > wrong with my code?
>> >
>> > Thank you so much. Cheers.
>> >
>> > --
>> > Andrea Grandi -  Software Engineer / Qt Ambassador / Nokia Developer
>> > Champion
>> > website: http://www.andreagrandi.it
>>
>>
>>
>> --
>> Andrea Grandi -  Software Engineer / Qt Ambassador / Nokia Developer
>> Champion
>> website: http://www.andreagrandi.it
>>
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>
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-- 
Andrea Grandi -  Software Engineer / Qt Ambassador / Nokia Developer Champion
website: http://www.andreagrandi.it