Re: [Duplicity-talk] no-compression still compresses?

[Cory Coager]

I did some troubleshooting on this and here is what I came up with.

I was able to force the output files to be tar files and not gzipped by 
changing gpg.py:
- gzip_file = gzip.GzipFile(None, "wb", 6, file_counted)
+ gzip_file = file_counted

However, this still broke restores.  I believe it still wants gzip files 
to be present so I guess a better way to handle this is changing the 
compression to 0 which will still gzip the files but turn compression 
off.  This test was successful for both backup and restore.

Not sure how you want to handle this but those are my thoughts.

On 03/06/2013 03:10 PM, address@hidden wrote:
> in bin/duplicity probably here
> http://bazaar.launchpad.net/~duplicity-team/duplicity/0.6-series/view/head:/bin/duplicity#L383
>
> also you should research the code that was added when --no-compression switch 
> was added.. search changelog for a circa point in time and then look in the 
> repositories history for the commit that added it.
> i have the feeling something was lost, removed erroneously somewhen, as i 
> recall it worked after the switch was included.
>
> ..ede/duply.net
>
> On 06.03.2013 20:59, Cory Coager wrote:
> > If someone can point me in the right direction I can.  I tried troubleshooting 
> > this yesterday by hacking the code and wasn't able to get it working.  Where 
> > should I be looking?
> >
> > On Wed, Mar 6, 2013 at 2:21 PM, <address@hidden <mailto:address@hidden>> wrote:
> >
> >      thanks for following up. could we interest you in fixing this? any 
> > contribution is valued lots.
> >
> >      ..ede/duply.net <http://duply.net>
> >
> >      On 06.03.2013 18:33, Cory Coager wrote:
> >      > Bug ticket id is 1029516.
> >      >
> >      > On Wed, Mar 6, 2013 at 11:07 AM, Cory Coager <address@hidden <mailto:address@hidden> 
> > <mailto:address@hidden <mailto:address@hidden>>> wrote:
> >      >
> >      >     The resultant files are indeed gzipped as I was able to manually 
> > uncompress them. This may be related to the bug you speak of and I updated the 
> > ticket yesterday.
> >      >
> >      >
> >      >     On Wednesday, March 6, 2013,  <address@hidden <mailto:address@hidden> 
> > <mailto:address@hidden <mailto:address@hidden>>> wrote:
> >      >     > i see.. so it can be mistaken, cause it only tries to interpret 
> > what file type it may be?
> >      >     >
> >      >     > anyway, sigtar, difftar should be untarable with tar, right? so he 
> > could try that.
> >      >     >
> >      >     > or, just to find out if it compresses: backup a quite big plain 
> > text/sql dump file.. the resulting volume will be significantly smaller if it really 
> > compresses although forbidden.
> >      >     >
> >      >     > ..ede/duply.net <http://duply.net> <http://duply.net>
> >      >     >
> >      >     > On 06.03.2013 16:27, Michael Terry wrote:
> >      >     >> He means running "file XXX".
> >      >     >>
> >      >     >> "file" is a standard GNU/unix command to determine what a file 
> > actually is (rather than just by filename).
> >      >     >>
> >      >     >> -mt
> >      >     >>
> >      >     >>
> >      >     >> On 6 March 2013 04:18, <address@hidden <mailto:address@hidden> <mailto:address@hidden 
> > <mailto:address@hidden>> <mailto:address@hidden <mailto:address@hidden> <mailto:address@hidden 
> > <mailto:address@hidden>>>> wrote:
> >      >     >>
> >      >     >>     On 06.03.2013 03:02, Cory Coager wrote:
> >      >     >>     > I'm using --no-encryption and --no-compression for a 
> > backup.  I noticed the files have a .difftar extension instead of .difftar.gz. However, 
> > running a file against these shows that they are still gzip'd with max compression.  Why is 
> > this happening?  Am I missing something?
> >      >     >>     >
> >      >     >>     > I'm using version 0.6.21 from Ubuntu ppa.
> >      >     >>
> >      >     >>
> >      >     >>     shouldn't be.. how do you test? what do you mean by " running a 
> > file against these "?
> >      >     >>
> >      >     >>     i wouldn't advise to use --no-compression. afaik it has a bug 
> > in restoring currently.. check the launchpadpad bug tracker.
> >      >     >>
> >      >     >>     ..ede/duply.net <http://duply.net> <http://duply.net> 
> > <http://duply.net>
> >      >     >>
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