lib/git/import.sx parses loose payloads back to native objects bottom-up
over an export-set table: tree mode/name/raw-sha triples, ident lines,
header/message split, committer stored only when distinct so export
defaults regenerate identical bytes. Laws verified: export->import->export
is BYTE-IDENTICAL (head sha + every object), imported blobs/default-mode
trees regain their original native cids, 100755/tags/distinct-committer/
multi-line messages all survive. 15/15, total 267/267.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Textual diff3 built on the Myers scripts: non-eq regions clustered by strict
base-interval overlap (same-point insert pairs cluster too); one-sided
clusters apply, two-sided take shared result or emit <<<<<<</|||||||/=======/
>>>>>>> markers with base section. Per-path 3-way tree merge with blob-level
auto-merge and delete/modify flagging; merge-commits handles up-to-date /
fast-forward / merged / conflicts, unrelated histories merge over an empty
base. (Content CvRDT not reused deliberately: its state-based LWW block
semantics differ from base-anchored 3-way; the path-set merge here is the
same idea applied natively.) 28/28, total 187/187.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Myers O(ND) forward/backtrack over line vectors (dict-vec), edit script
{:op eq|del|add :line}, reconstruction invariants both sides, paper example
D=5 verified; unified hunks with context 3, merged ranges, exact header
math for empty sides; tree/commit structural diff over flattened trees;
whole-commit unified render. 27/27, total 159/159.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Worktree is a value (path->data dict). tree-from-files/tree-files round-trip
through real tree objects (cid-identical to hand-built trees); index =
{:base tree-cid :staged overlay} in kv with add!/rm!/unstage!/index-tree!;
status = three-way dict diff (HEAD vs index vs worktree) with
staged/unstaged/untracked. 26/26, total 132/132.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Ref value = {:cid} | {:symref}; atomic moves via persist/kv-cas old-value
expect, create-only branches via kv-put-new; bounded symref resolution;
per-ref append-only reflog on the persist log facet. 38/38, total 76/76.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Objects are plain dicts over persist kv, addressed by sx1:<sha256> of the
artdag/canon canonical form (sorted dict keys) — native CIDs, extensible
fields participate in identity. 38/38.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
