Task: SitePack Exporter

Goal

Generate an unpacked SitePack package and (optionally) pack it into .sitepack (ZIP).

Input

Any site data model (content, assets, config, tables). The exporter decides which profiles are applicable.

Requirements

• Create sitepack.manifest.json and sitepack.catalog.json at the root.
• Fill manifest.spec and manifest.package.id.
• manifest.createdAt — UTC date-time (ISO 8601).
• manifest.profiles — selected profiles.
• manifest.artifacts — list of artifact IDs.
• catalog.artifacts[] — full list of artifacts with id, mediaType, path, size, and (preferably) digest.
• size — byte length of the file.
• digest — sha256:<hex>.
• relations MUST be emitted as an object mapping relation keys to Link[].
• A Link MUST be either a string or an object with ref and optional meta.
• If producing a split distribution, generate sitepack.volumes.json with spec.version = 0.4.0, kind = volume-set, and a volumes[] list.
• maxPartSize SHOULD be 104857600 bytes (100 MiB) unless the user specifies otherwise.

NDJSON

• One JSON object per line.
• No extra spaces and no empty lines.

Chunked assets

• If an asset is chunked, emit chunks[] with index, size, sha256, and path for each chunk.
• For chunked assets, omit path and include chunks at the asset level.
• Compute and store both per-chunk sha256 and the overall asset sha256/size.

Profiles (recommendations)

• config-only: config only.
• content-only: entities without assets.
• content+assets: entities + asset index.
• full: content + assets + config + recordsets.
• full+code: full + code/software manifest.

Output

• Unpacked package directory.
• Optional: ZIP file with .sitepack extension.
• reports/export.json summary:

{
  "packageId": "...",
  "profiles": ["..."],
  "artifacts": 0,
  "files": 0,
  "bytes": 0,
  "digests": "sha256"
}