On Wed, 2014-09-03 at 14:18 +0200, Milan Crha wrote:
Are you able to recognize affected contacts from the binary diff, or from anything after the diff is applied?
Well... theoretically perhaps. With a binary diff of course a lot of
data from the original file is preserved. So any contact contained
entirely within an unchanged part of the file should be unchanged...
although it *might* have changed its offset within the file¹.
It would be fairly non-trivial to hook into the low-level LZX
decompression code and get a list of '{un,}changed ranges' though.
Especially when we're applying more than one delta at a time.
--
dwmw2
¹ which matters if we're storing the file offset so that we can recreate
the vcard on demand from the original.
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