Artifact [de09798355]

Artifact de09798355e93a7d89c0ceeb5d0d714fe8f2c93c9ca3094d6c9521657256d5bd:

• File internal/horizon/export_test.go — part of check-in [2ea6479ba9] at 2026-10-22 00:04:54 on branch feat/horizon-cones — feat(content): classify blobs below a content horizon as elided

  A store cone may now carry a content horizon (draft-fossil-horizon-00 §3.2, §4.1-§4.3). Classification computes the held set K from the store's own check-in graph and walks K's full trees -- F cards directly, through B baselines and through S sub-manifest nodes, with one visited set over structural names -- because mlink records a file version only where it changed, and a blob introduced below C and unchanged through C is named by C's tree alone. Nothing about K is stored: every classification recomputes it, so moving C or losing the cone is a reload, never a migration.

  Blobs no K check-in names are elided; with path members as well a blob is kept only when it is in both keep sets. Under a horizon nothing structural is elided, by the horizon or by path members, and delta bases of held artifacts and shunned names keep their classes. A C the store does not hold elides nothing, as zit's classification does: eliding everything would leave the pull that brings a deepened C nothing to ask for. A structural horizon is refused by SetStoreCone until it is implemented.

  internal/content now imports internal/horizon, so the held-set tests, which commit through internal/manifest, move to an external test package to avoid an import cycle. (user: [email protected], size: 270) [annotate] [blame] [check-ins using] [more...]

package horizon

// HeldSetWithin is HeldSet under a caller's visited-node bound. The tests
// are an external package because internal/content, which classifies by
// the held set, sits between this package and the manifest writer they use.
var HeldSetWithin = heldSet