Re: [office] RE: Directories in Zip packages

[Michael Stahl <michael.x.stahl@oracle.com>]

On 28/09/2010 01:43, robert_weir@us.ibm.com wrote:
> It should also be noted that there are two ways two store A/B/C in a ZIP, 
> where C is a file:
> 
> Some ZIP apps store this as three entries:
> 
> A/
> A/B/
> A/B/C
> 
> And some ZIP apps store it as a single entry:
> 
> A/B/C and then rely on unzipping logic to know to create the appropriate 
> parent directories.
> 
> Both are legal and you'll see both. 
> 
> -Rob

one reason why a ZIP producer would create entries for directories is to
store things like UID/GID and such using various platform specific extensions.
AFAIK Info-Zip can do this.

of course for an ODF package that kind of thing is completely unnecessary.
But on the other hand using some generic ZIP implementation to modify ODF
packages can be very convenient at times, and if such a generic ZIP
implementation happens to create entires for directories then IMHO that
shouldn't make the ODF package invalid or non-conformant.

[the extra platform specific stuff shouldn't be in a conformant package of
course, IIRC that is what the conformance clauses say.]

reagards,
 michael

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