Re: [PATCH 2/2] Add keyword unexpansion support to convert.c

> On Wed, 18 Apr 2007, Rogan Dawes wrote:
> 
>> Right. I would imagine that the script would have to take care of setting
>> timestamps in the filesystem appropriately, as well as passing them back to
>> git when queried.
>>
>> e.g. expanding test.odf/: (since we store it as a directory)
>>
>> git calls "odf.sh checkout test.odf/ <sha1> <perms> <stat>"
>>
>> odf checkout calls back into git to find out the details of the files under
>> test.odf/, and creates a zip file containing the individual files, with
>> appropriate timestamps.
> 
> Why would you need to store the document as multiple files into Git?
> 
> The only reasons I can see for external filters are:
> 
>  1) Normalization, e.g. the LF->CRLF thing.
> 
>     Some might want to do keyword expansion which would fall into this
>     category as well.
> 
>  2) Better archiving with Git's deltas.
> 
>     That means storing files uncompressed into Git since Git will
>     compress them anyway, after significant space reduction due to 
>     deltas which cannot occur on already compressed data.
> 
> So if your .odf file is actually a zip with multiple files, then all you 
> have to do is to convert that zip archive into a non compressed tar 
> archive on checkins, and the reverse transformation on checkouts.  The 
> non compressed tar content will delta well, the Git archive will be 
> small, and no tricks with the index will be needed.
> 
> Or am I missing something?
> 
> 
> Nicolas