Junio C Hamano wrote:
> Assuming that you do have and are willing to read the original file,
> you have three possible (and one impractical) approaches:
> - Apply the foreign changes to the original file yourself, and feed
> the resulting content to fast-import in full, letting fast-import
> convert into the format Git understands.
This (when importing from Subversion) was the motivation for
introducing fast-import's cat-blob command, for what it's worth.
> In short, the most practical solution would be to reconstitute a
> full object and feed that to fast-import, unless you already have
> xdelta or you can turn your foreign change into xdelta without ever
> looking at the original.
If your delta format happens to be similar enough to xdelta, then
streaming in deltas in xdelta format does sound like a neat trick.
Maybe it would be useful to provide a micro-library that creates and
validates xdelta opcodes for fast-import frontends to use.
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