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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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4
lib/git/conformance.sh
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@@ -13,7 +13,7 @@ if [ ! -x "$SX_SERVER" ]; then
exit 1
fi
SUITES=(object ref dag worktree diff merge porcelain)
SUITES=(object ref dag worktree diff merge porcelain export)
OUT_JSON="lib/git/scoreboard.json"
OUT_MD="lib/git/scoreboard.md"
@@ -49,6 +49,8 @@ run_suite() {
(load "lib/git/diff.sx")
(load "lib/git/merge.sx")
(load "lib/git/porcelain.sx")
(load "lib/git/sha1.sx")
(load "lib/git/export.sx")
(epoch 2)
(eval "(define git-test-pass 0)")
(eval "(define git-test-fail 0)")