Support Amazon CloudDrive as backup destination

[Behrang]

Amazon CloudDrive has a REST-based API: https://developer.amazon.com/public/apis/experience/cloud-drive

It would be nice if Deja Dup supported CloudDrive too.

[Charles Butler (lazypower)]

There's also a project that's already functional in the 0.7+ releases of duplicity that support ACD. This would just need to be added to the 'Custom' location bits.

https://github.com/breunigs/duplicity-amazondrive

I've confirmed that the backend works

Example output with a small file set

charles@makoto:~$ duplicity Music ad:///Music
Could not load OAuth2 token. Trying to create a new one. (original error: [Errno 2] No such file or directory: '/home/charles/.duplicity_ad_oauthtoken.json')

In order to allow duplicity to access Amazon Drive, please open the following URL in a browser and copy the URL of the page you see after authorization here:
[redacted]

URL of the resulting page: [redacted]
Local and Remote metadata are synchronized, no sync needed.
Last full backup date: none
GnuPG passphrase for decryption:
Retype passphrase for decryption to confirm:
No signatures found, switching to full backup.
Attempt 1 failed. ConnectionError: ('The read operation timed out',)
Attempt 2 failed. BackendException: Upload failed, because there was a file with the same name as duplicity-full.20170301T195249Z.vol2.difftar.gpg already present. The file was deleted, and duplicity will retry the upload unless the retry limit has been reached.
Warning, found incomplete backup sets, probably left from aborted session
--------------[ Backup Statistics ]--------------
StartTime 1488397979.55 (Wed Mar 1 13:52:59 2017)
EndTime 1488398186.24 (Wed Mar 1 13:56:26 2017)
ElapsedTime 206.69 (3 minutes 26.69 seconds)
SourceFiles 7
SourceFileSize 483222136 (461 MB)
NewFiles 7
NewFileSize 483222136 (461 MB)
DeletedFiles 0
ChangedFiles 0
ChangedFileSize 0 (0 bytes)
ChangedDeltaSize 0 (0 bytes)
DeltaEntries 7
RawDeltaSize 483213944 (461 MB)
TotalDestinationSizeChange 483815492 (461 MB)
Errors 0
-------------------------------------------------

[Michael Terry (mterry)]

Good idea! But this should be first added to GNOME Online Accounts and then we can expose it in Deja Dup.

I'll close this since I don't want to expose duplicity support for this directly without going through GOA.

https://wiki.gnome.org/Apps/DejaDup/Clouds