oci: extract artifact-agnostic primitives into oci/artifact (Phase 0, THV-0077)#133
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oci: extract artifact-agnostic primitives into oci/artifact (Phase 0, THV-0077)#133JAORMX wants to merge 1 commit into
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Phase 0 of plugin support (THV-0077). Move the artifact-agnostic OCI primitives out of oci/skills into a new oci/artifact package so a future oci/plugins can reuse them: - tar (CreateTar/ExtractTar*/FileEntry/TarOptions, MaxTarFileSize) - gzip (Compress/Decompress*/CompressTar/DecompressTar, MaxDecompressedSize) - platform helpers (PlatformString/ParsePlatform/DefaultPlatforms, OS/Arch) - pull-hardening, exported as ValidatingTarget/NewValidatingTarget plus the manifest/blob size caps and manifest-count limits oci/skills re-exports every moved symbol via type aliases, var-forwarding, and const re-declaration (oci/skills/artifact_aliases.go), so the package's public surface is unchanged and downstream consumers (toolhive) are unaffected — no exported signature changed. Behavior-preserving move: function bodies are identical and the oci/skills determinism tests still assert byte-stable artifact digests. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Phase 0 of plugin support (RFC THV-0077)
Extracts the artifact-agnostic OCI primitives out of
oci/skillsinto a newoci/artifactpackage so the upcomingoci/pluginspackage can reuse them. Behavior-preserving refactor — no logic changes.What moved to
oci/artifactCreateTar/ExtractTar/ExtractTarWithLimit,FileEntry,TarOptions/DefaultTarOptions,MaxTarFileSize, path-traversal/symlink rejectionCompress/Decompress/DecompressWithLimit,CompressTar/DecompressTar,GzipOptions/DefaultGzipOptions,MaxDecompressedSize(decompression-bomb guard)PlatformString/ParsePlatform/DefaultPlatforms+ OS/Arch constsValidatingTarget/NewValidatingTarget(+ manifest/blob size caps and manifest-count limits, digest verification)Backward compatibility
oci/skillsre-exports every moved symbol via type aliases (type X = artifact.X),var-forwarding for funcs, and const re-declaration (oci/skills/artifact_aliases.go). The public surface ofoci/skillsis unchanged — no exported signature changed, and downstream consumers (toolhive) are unaffected. The skills determinism tests still assert byte-stable artifact digests, proving published skill digests don't change.Notes
SkillConfig,Packager,Registry,Store) stays inoci/skills.toolhive-core+ bumptoolhive'sgo.mod), which is tracked in the epic.Closes #130
Part of stacklok/toolhive#5525
RFC: stacklok/toolhive-rfcs#77
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