WIP HACK: Do not reuse zstd:chunked blobs

Absolutely untested. Signed-off-by: Miloslav Trmač <[email protected]>
containers · Nov 13, 2023 · 741b5b3 · 741b5b3
1 parent c951e83
commit 741b5b3
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/internal/imagedestination/impl/helpers.go b/internal/imagedestination/impl/helpers.go
@@ -12,6 +12,11 @@ func BlobMatchesRequiredCompression(options private.TryReusingBlobOptions, candi
 	if options.RequiredCompression == nil {
 		return true // no requirement imposed
 	}
+	if options.RequiredCompression.Name() == compression.ZstdChunkedAlgorithmName {
+		// HACK: Never match when the caller asks for zstd:chunked, because we don’t record the annotations required to use the chunked blobs.
+		// The caller must re-compress to build those annotations.
+		return false
+	}
 	return candidateCompression != nil && (options.RequiredCompression.Name() == candidateCompression.Name())
 }