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feat(git/repo): add Repo:head_sha for cached HEAD blob lookups

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This commit is contained in:
Oscar Wallberg
2026-05-20 12:45:56 +02:00
parent 6230c2663c
commit 7c92b5eff6
2 changed files with 29 additions and 0 deletions
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test/git/repo_test.lua
+19
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@@ -97,6 +97,25 @@ t.test("index_sha cache clears when the index is written", function()
wait_cleared(r, "index:a", 2000)
end)
t.test("head_sha returns the blob sha and caches it", function()
local dir = h.make_repo({ a = "x\n" })
local r = assert(require("git.core.repo").resolve(dir))
local sha = r:head_sha("a")
t.truthy(sha and #sha > 0, "head_sha returns the HEAD blob sha")
t.truthy(r._cache["head_blob:a"] ~= nil, "the result is cached")
t.eq(r:head_sha("a"), sha, "a cached call returns the same sha")
end)
t.test("head_sha cache clears when HEAD moves", function()
local dir = h.make_repo({ a = "x\n" })
local r = assert(require("git.core.repo").resolve(dir))
r:head_sha("a")
t.truthy(r._cache["head_blob:a"] ~= nil, "sha is cached before the commit")
t.write(dir, "a", "y\n")
h.git(dir, "commit", "-aqm", "change")
wait_cleared(r, "head_blob:a", 2000)
end)
t.test("cache clears after top-level .git change (commit)", function()
local dir = h.make_repo({ a = "x" })
local r = assert(require("git.core.repo").resolve(dir))