Original Art Archive Validator

This repository contains the reference validator for the Original Art Archive (OAA) Format.

The validator checks whether an OAA archive is valid according to OAA 0.1 Draft archive/content requirements: package structure, required manifest fields, manifest shape, archive path safety, manifest-local-path rejection, reference integrity, extension block shape, external link shape, and resource limits.

The validator uses schema/oaa-manifest.schema.json through jsonschema for manifest-local JSON Schema validation, then applies custom checks for package structure, archive paths, cross-manifest references, embedded file resolution, resource limits, and other rules that cannot be validated from one manifest document alone.

It does not certify reader or writer implementation behavior. A writer can run its emitted archive through this validator to check whether the archive is valid, and a reader can use the validator as a preflight check before reading an archive. The validator does not extract archive contents to disk and does not open or render embedded media files.

The normative format specification is maintained in Original-Art-Archive/oaa-spec.

Installation

Install from PyPI:

python -m pip install oaa-validator

Install development dependencies from a source checkout:

python -m pip install -r requirements\dev-requirements.txt
python -m pip install -e .

Usage

Validate an .oaa archive:

oaa-validator validate path\to\archive.oaa

Validate an unpacked OAA directory layout before packaging:

oaa-validator validate-dir examples\minimal

Emit machine-readable output:

oaa-validator validate-dir examples\minimal --json --show-info

Exit codes:

Closed Base Value Checks

The validator rejects unknown values in OAA closed base value sets:

• Reject files[].file_kind values other than raw, derivative, and supporting.
• Reject files[].image_role values other than raw_scan, raw_photo, corrected_scan, detail, verso, and reference when the field is present and not null.
• Reject base public_metadata.publication_status values other than published_art and unpublished_art when the field is present and not null.

Display-oriented strings such as public_metadata.media, public_metadata.artwork_type, artist_credits[].role, public_metadata.for_sale_status, and files[].format are not treated as controlled OAA values.

Traceability

Validator findings include both rule_id and requirement_ids.

Requirement IDs are not embedded in the public specification. They live in requirements/oaa-0.1.yaml, and requirements/traceability.md is generated from the catalog, rule metadata, and fixture metadata.

Only archive-validity requirements may have automated validator rules. Reader, writer, round-trip, public-display, and implementation-behavior statements are excluded from automated validator scope unless they define a concrete archive/content condition.

Refresh the traceability matrix:

python requirements/generate_traceability.py

Check that it is current:

python requirements/generate_traceability.py --check

Publishing

This repository publishes the oaa-validator package to PyPI from .github/workflows/publish.yml.

Publishing uses PyPI Trusted Publishing through the pypi GitHub environment. No PyPI API token is stored in this repository.