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Skip export of caches with no layers to OCI structures #4336

Merged
merged 1 commit into from
Oct 17, 2023
Merged

Skip export of caches with no layers to OCI structures #4336

merged 1 commit into from
Oct 17, 2023

Commits on Oct 17, 2023

  1. Skip export of caches with no layers to OCI structures 

    These happen when a container image is built using only metadata
actions, and hence does not generate any filesystem changes.

Such a degenerate cache is not interesting, and some OCI registries
reject OCI images with no layers.

Specifically, this only affects the `registry` and `local` exporters.

The `inline` exporter already early-outs in this case with the same
warning, and the `gha`, `s3`, and `azblob` exporters are unchanged.

Signed-off-by: Paul "TBBle" Hampson <Paul.Hampson@Pobox.com>
    @TBBle
    TBBle committed Oct 17, 2023
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