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Propagate CompressedDigest/CompressedSize when reusing data from another layer #2583

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Propagate CompressedDigest/CompressedSize when reusing data from another layer #2583

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Commits on Oct 25, 2024

  1. Propagate CompressedDigest/CompressedSize when reusing data from anot… 

    …her layer

We record (some) CompressedDigest/CompressedSize when pulling a layer from
registry; but, previously, we would lose these values (and record uncompressed values)
when creating a duplicate of a layer already present in storage. Eventually,
the original layer might get deleted and then we would only find a match
in BlobInfoCache, under more restrictive conditions.

Instead, try to propagate the value to the duplicated layer. This might
not work if the layer has multiple compressed representations, but
that's hopefully not all _that_ frequent.

Signed-off-by: Miloslav Trmač <[email protected]>
    @mtrmac
    mtrmac committed Oct 25, 2024
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