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Improve handling of zstd vs. zstd:chunked matching #2317

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merged 4 commits into from
Feb 29, 2024

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mtrmac
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@mtrmac mtrmac commented Feb 28, 2024

This is not expected to change observable behavior for now, just improve the internal logic. See individual commit messages for details.

@giuseppe PTAL.

Commit to it as a public API; it's really only usable for
.BaseVariantName() == .Name().

Should not change behavior.

Signed-off-by: Miloslav Trmač <mitr@redhat.com>
Default baseVariantName to name; only include a value in the non-trivial
zstd:chunked case.

Should not change behavior.

Signed-off-by: Miloslav Trmač <mitr@redhat.com>
…gorithm

e.g. when the user asks for zstd, also accept zstd:chunked.

This does not currently make a difference because we can't detect
zstd:chunked in blobPipelineDetectCompressionStep, and the
BlobInfoCache does not record zstd:chunked; but let's get the logic
more correct.

Signed-off-by: Miloslav Trmač <mitr@redhat.com>
This should not matter much in practice - CompressionAlgorithm
is only used for updating MIME types, and for ListEdit.*CompressionAlgorithms,
where zstd and zstd:chunked are treated the same - but it's easier to
make the logic accurate than to commit to the fields _only_
carrying BaseVariantName-values.

Signed-off-by: Miloslav Trmač <mitr@redhat.com>
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LGTM

@rhatdan
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rhatdan commented Feb 29, 2024

LGTM

@rhatdan rhatdan merged commit cdc6802 into containers:main Feb 29, 2024
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@mtrmac mtrmac deleted the compression-variants branch March 1, 2024 14:25
atmosphere-ci bot pushed a commit to vexxhost/atmosphere that referenced this pull request Apr 21, 2024
…1114)

This PR contains the following updates:



Package
Change
Age
Adoption
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github.com/containers/image/v5
v5.29.2 -> v5.30.0








WarningSome dependencies could not be looked up. Check the warning logs for more information.


Release Notes

containers/image (github.com/containers/image/v5)
v5.30.0
Compare Source
What's Changed
A fair number of improvements when working with zstd and zstd:chunked-compressed images.
Note that make install now installs policy.json and registries.d/default.yaml.

Refuse compression to zstd when using schema1 by @​mtrmac in containers/image#2196
Don't expose local account details in oci-archive tar files by @​mtrmac in containers/image#2202
Trigger a conversion to OCI when compressing to Zstd by @​mtrmac in containers/image#2204
Add buildtags to avoid fulcio and rekor dependencies by @​siretart in containers/image#2180
copy: do not fail if digest mismatches by @​giuseppe in containers/image#1980
Moving policy.json and default.yaml from containers/skopeo by @​rahilarious in containers/image#2215
Embrace codespell: config, workflow (to alert when new typos added) and get typos fixed by @​yarikoptic in containers/image#2214
Fix raspberry pi zero cpu variant recognition by @​lstolcman in containers/image#2086
storage: validate images converted to zstd:chunked by @​giuseppe in containers/image#2243
Make blob reuse choices manifest-format-sensitive, and allow conversions when writing to format-agnostic transports by @​mtrmac in containers/image#2213
Edit the manifest when pushing uncompressed data from c/storage by @​mtrmac in containers/image#2273
Random storage-related cleanups by @​mtrmac in containers/image#2287
Improve storage transport documentation, primarily about locking by @​mtrmac in containers/image#2291
Fix c/storage destination with partial pulls by @​mtrmac in containers/image#2288
Fix manifest updates when we match a layer by TOC digest by @​mtrmac in containers/image#2294
Cleanly fail when trying to obtain a DiffID of a non-OCI image by @​mtrmac in containers/image#2295
Beautify TOC-related parts of storageImageSource by @​mtrmac in containers/image#2296
storage: use the new ApplyStagedLayer interface by @​giuseppe in containers/image#2301
Also annotate image instances using zstd:chunked as using zstd by @​mtrmac in containers/image#2302
Support editing ArtifactType, preserve it in lists by @​nalind in containers/image#2304
Provide data to correctly report throughput on partial pulls by @​mtrmac in containers/image#2308
Add validation error to digesting reader by @​saschagrunert in containers/image#2312
Fix handling of errors when fetching layers by URLs by @​mtrmac in containers/image#2310
Improve handling of zstd vs. zstd:chunked matching by @​mtrmac in containers/image#2317

New Contributors

@​rahilarious made their first contribution in containers/image#2215
@​yarikoptic made their first contribution in containers/image#2214
@​lstolcman made their first contribution in containers/image#2086
@​bainsy88 made their first contribution in containers/image#2260

Full Changelog: containers/image@v5.29.2...v5.30.0


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3 participants