build(wit): move WIT to group-local trees vendored via wit-deps - #640
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Each group now owns its WIT tree (nexum/wit, videre/wit, shepherd/wit) and the shared root wit/ is deleted. Cross-group packages are vendored into the consuming group's wit/deps/ by wit-deps from path sources, with deps.toml manifests and digest-pinned deps.lock files checked in: videre vendors nexum-host; shepherd vendors nexum-host plus the videre packages. The path sources flip to pinned git-tag tarballs at the physical carve. resolve_wit_packages now resolves solely against the nearest ancestor wit/ tree, vendored deps/ before owned packages, and never falls through to an outer tree, so a group cannot use WIT it has not vendored. Hardcoded bindgen!/generate!/include_str! path lists, the cow layering test, and the venue-agnostic gate point at the group-local trees.
mfw78
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Jul 27, 2026
Each group now owns its WIT tree (nexum/wit, videre/wit, shepherd/wit) and the shared root wit/ is deleted. Cross-group packages are vendored into the consuming group's wit/deps/ by wit-deps from path sources, with deps.toml manifests and digest-pinned deps.lock files checked in: videre vendors nexum-host; shepherd vendors nexum-host plus the videre packages. The path sources flip to pinned git-tag tarballs at the physical carve. resolve_wit_packages now resolves solely against the nearest ancestor wit/ tree, vendored deps/ before owned packages, and never falls through to an outer tree, so a group cannot use WIT it has not vendored. Hardcoded bindgen!/generate!/include_str! path lists, the cow layering test, and the venue-agnostic gate point at the group-local trees.
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What
Moves WIT ownership from the single shared root
wit/tree to a crate-local layout:wit/nexum-host->nexum/wit/nexum-host,wit/videre-{types,value-flow,venue}->videre/wit/,wit/shepherd-cow->shepherd/wit/, and deletes the shared rootwit/.Cross-group WIT is now vendored via
wit-deps(bytecodealliance) from path sources:videre/wit/deps.tomlvendorsnexum-host, andshepherd/wit/deps.tomlvendorsnexum-hostplus the threeviderepackages, each with a digest-pinneddeps.lockand the vendoredwit/deps/copies checked in.resolve_wit_packagesinnexum/crates/nexum-worldis rewritten around a newfind_wit_treehelper that locates the nearest ancestorwit/directory and resolves solely inside it (checkingwit/deps/<pkg>beforewit/<pkg>), with no fall-through to an outer tree, backed by new tests covering the no-tree error and the no-fall-through isolation property.Why
This is the pre-carve slice of #405: each crate group needs to own its WIT tree and resolve packages locally before the cross-repo git-tag sourcing work lands in the carve. Part of #405.
Testing
Full
just cirun underCI=1: fmt, clippy with-D warnings,check-carve-groups, rustdoc, all 16 module wasms, nextest and doctests all passed (866 tests, no skips).Wasm-dependent platform e2e tests executed and passed, including
e2e_twap_monitor_boots_against_the_cow_adapterande2e_cow_venue_component_imports_equal_declared_capabilities, confirming every crate resolves its own package plus its cross-group deps from the vendored trees.Models used: fable (implementation), opus (red-team and gate), sonnet (this PR).