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fix(core): enforce patch EOF anchors (#38039)

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Aiden Cline 2026-07-21 10:15:51 -05:00 • committed by GitHub
commit 3ea8895299
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3 changed files with 58 additions and 7 deletions
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24
packages/core/test/tool-patch.test.ts
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@ -392,14 +392,32 @@ describe("PatchTool", () => {
withTempTool((directory, registry) =>
Effect.gen(function* () {
const target = path.join(directory, "tail.txt")
yield* Effect.promise(() => fs.writeFile(target, "alpha\nlast\n"))
yield* Effect.promise(() => fs.writeFile(target, "first\nsecond"))
yield* executeTool(
registry,
call(
"*** Begin Patch\n*** Update File: tail.txt\n@@\n-last\n+end\n*** End of File\n*** End Patch",
"*** Begin Patch\n*** Update File: tail.txt\n@@\n first\n-second\n+second updated\n*** End of File\n*** End Patch",
),
)
expect(yield* Effect.promise(() => fs.readFile(target, "utf8"))).toBe("alpha\nend\n")
expect(yield* Effect.promise(() => fs.readFile(target, "utf8"))).toBe("first\nsecond updated\n")
}),
),
)
it.live("applies an end-of-file chunk to the final duplicate", () =>
withTempTool((directory, registry) =>
Effect.gen(function* () {
const target = path.join(directory, "duplicates.txt")
yield* Effect.promise(() => fs.writeFile(target, "marker\nend\nmiddle\nmarker\nend\n"))
yield* executeTool(
registry,
call(
"*** Begin Patch\n*** Update File: duplicates.txt\n@@\n-marker\n-end\n+marker changed\n+end\n*** End of File\n*** End Patch",
),
)
expect(yield* Effect.promise(() => fs.readFile(target, "utf8"))).toBe(
"marker\nend\nmiddle\nmarker changed\nend\n",
)
}),
),
)