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Overview
Comment:Merge branch 'wip/horizon-structural' into feat/horizon-cones

The structural horizon (draft-fossil-horizon-00 Appendix A step 5): a store at structural depth elides manifests and nodes below the horizon and keeps boundary labels; the client sends horizon-structural and horizon-seed and holds the seed it is sent; the origin restricts manifests to the held set, labels the boundary, mints and sends the seed, and serves structural only when the seed is current. Interoperates with zit at 9bf7ebfe0f in both directions.

Timelines: family | ancestors | descendants | both | trunk | feat/horizon-cones
Files: files | file ages | folders
SHA3-256: 78ed31bf914d569af0c2df17876a395f48c755cc1a1987c5313ffe78b4199c29
User & Date: [email protected] on 2026-10-22 17:01:15.000
Other Links: branch diff | manifest | tags
Context
2026-10-22
17:02
docs: the structural horizon in the changelog and the sparse page check-in: 43d6d7f88b user: [email protected] tags: feat/horizon-cones, trunk
17:01
Merge branch 'wip/horizon-structural' into feat/horizon-cones

The structural horizon (draft-fossil-horizon-00 Appendix A step 5): a store at structural depth elides manifests and nodes below the horizon and keeps boundary labels; the client sends horizon-structural and horizon-seed and holds the seed it is sent; the origin restricts manifests to the held set, labels the boundary, mints and sends the seed, and serves structural only when the seed is current. Interoperates with zit at 9bf7ebfe0f in both directions. check-in: 78ed31bf91 user: [email protected] tags: feat/horizon-cones, trunk

16:46
fix(sync): decide a structural store's depth only on a pull's reply

A push alone carries no horizon pragma, so its reply says nothing about how the horizon is served, and a structural store pushing to its origin fell back to the content horizon. The first reply decides only when the request pulled. Preconditions of the structural serving and receiving paths are asserted. check-in: 1abe24cd2b user: [email protected] tags: feat/horizon-cones, trunk

15:33
Merge branch 'wip/horizon-docs' into feat/horizon-cones

A docs page for sparse cones and horizons: concepts, the library API, the CLI, interop with zit and fossil 2.28, and the limits as they stand. check-in: 441604df52 user: [email protected] tags: feat/horizon-cones, trunk

Changes
Unified Diff Side-by-Side Diff Patch
Modified checkout_sparse.go from [4f4299e2ea] to [2ee3f5e3f3]. [diff]
Modified cli/exit.go from [a4a4949165] to [572b9dc56d]. [diff]
Modified cli/repo_annotate.go from [ec73bc1dc3] to [73cd6fb7d3]. [diff]
Modified cli/repo_clone.go from [9a294aa1fe] to [70218c2126]. [diff]
Modified cli/repo_co.go from [9c50e2c3e2] to [ef7f9be394]. [diff]
Modified cli/repo_cone.go from [4d18fcc7f8] to [a4f84a805c]. [diff]
Modified cli/repo_diff.go from [8189cd9e1f] to [4ec3c6418b]. [diff]
Modified cli/repo_info.go from [486f59013b] to [761f95ae43]. [diff]
Added cli/repo_structural_test.go version [da78249a59].
Modified cli/repo_verify.go from [754c15db6a] to [1d3e86a22c]. [diff]
Modified conformance/horizon_content_test.go from [37662922b6] to [ac19720443]. [diff]
Added conformance/horizon_structural_test.go version [8f72fb17cb].
Added conformance/horizon_structural_zit_test.go version [c4a8283c6e].
Modified conformance/horizon_test.go from [d057548257] to [98d1ca72dd]. [diff]
Modified conformance/requirements/horizon.tsv from [d3b4f45779] to [3fa6bd72da]. [diff]
Modified conformance/sparsesync_helpers_test.go from [24245c243d] to [51859f3d42]. [diff]
Modified fossil.go from [2cecb80616] to [546267daf3]. [diff]
Modified horizon_test.go from [0580433258] to [763f0d796e]. [diff]
Modified internal/content/cone_references.go from [8242881ad2] to [658e6fa2d2]. [diff]
Added internal/content/horizon_labels.go version [9ded06d953].
Modified internal/content/sparse.go from [e4fabed914] to [c6e50a2f71]. [diff]
Modified internal/content/sparse_horizon.go from [e04f07c8e2] to [693f4ca3c8]. [diff]
Modified internal/content/sparse_horizon_test.go from [7ec6a1516e] to [cad2427c50]. [diff]
Added internal/content/structural_horizon_test.go version [f19ae03e15].
Modified internal/horizon/seed/seed.go from [d2fe3a0c8e] to [019b9903cc]. [diff]
Modified internal/horizon/seed/seed_test.go from [58bde0a906] to [9b7969adbb]. [diff]
Modified internal/manifest/sparse_crosslink.go from [9096789a13] to [6d09d5279f]. [diff]
Modified internal/sync/client.go from [5674d5fe07] to [d9c0ad9eff]. [diff]
Modified internal/sync/clone.go from [ff0d447ffe] to [a3dcf84046]. [diff]
Modified internal/sync/handler.go from [7b2b1b9ec1] to [621a21b22e]. [diff]
Modified internal/sync/horizon_pragma_test.go from [df79ae4ad6] to [6899494fee]. [diff]
Added internal/sync/horizon_structural.go version [cd7078922b].
Modified internal/sync/session.go from [8a0c2070b6] to [71bd692d88]. [diff]
Modified internal/sync/sparse.go from [902d74b36c] to [685695a7ab]. [diff]
Modified internal/sync/sparse_clone_walk.go from [fcf8d08e4d] to [67c2c1668a]. [diff]
Modified internal/sync/sparse_policy.go from [6bee3b76c1] to [1e18e6fd37]. [diff]
Modified internal/sync/sparse_test.go from [9dec05b974] to [9bf598994e]. [diff]
Modified internal/sync/sparse_walk.go from [c88e5c31b2] to [2bb3b3982c]. [diff]
Modified internal/sync/stubs.go from [7e2dfcbd09] to [e72a20c185]. [diff]
Modified internal/verify/verify.go from [12719601fd] to [1f931c66bd]. [diff]
Modified repo_sync.go from [963e36f479] to [f8a010e0ba]. [diff]