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sx-git extension: git-wire export adapter — byte-exact loose objects + SHA-1 (TDD)

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lib/git/sha1.sx: SHA-1 in pure SX over host bitwise prims (FIPS vectors +
multi-block verified). lib/git/export.sx: native objects -> git payloads
"<type> <len>\0<body>" with real git identity, golden-verified against git
CLI (hash-object/mktree/commit-tree/mktag with pinned idents): tree entry
sorting with dirs keyed "name/", raw 20-byte child shas, "40000" subtree
mode, :mode overrides, deterministic ident defaults, trailing-newline
message rule. export-closure/export-set emit a host-writable object table.
Adapter-at-the-edge: native model untouched; zlib/packfiles remain host-side
concerns. 25/25, total 252/252.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
giles
2026-07-03 12:46:54 +00:00
parent 7d3f267503
commit e228d462eb
6 changed files with 735 additions and 5 deletions
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3
lib/git/scoreboard.md
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@@ -11,4 +11,5 @@ _Generated by `lib/git/conformance.sh`_
| diff | 27 | 0 | 27 |
| merge | 28 | 0 | 28 |
| porcelain | 40 | 0 | 40 |
| **Total** | **227** | **0** | **227** |
| export | 25 | 0 | 25 |
| **Total** | **252** | **0** | **252** |