ceos/opencode
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

fix(core): preserve shell output tail

Browse source 
Shell truncation read from cursor zero, so large command output kept the head instead of the useful tail. Read the final capture window and cover the direction with head/tail markers.
This commit is contained in:
Aiden Cline 2026-07-12 19:38:50 +00:00
commit d8b7a0a391
9 changed files with 32 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

13
packages/core/test/tool-shell.test.ts
View file

@ -162,10 +162,10 @@ const idleCommand = isWindows ? "Start-Sleep -Seconds 60" : "sleep 60"
const bodyExitCommand = isWindows
? "[Console]::Out.Write('body'); Start-Sleep -Milliseconds 100; exit 7"
: "printf body && exit 7"
const overflowCommand = (bytes: number) =>
const overflowMarkersCommand = (bytes: number) =>
isWindows
? `[Console]::Out.Write(('x' * ${bytes})); Start-Sleep -Milliseconds 100`
: `head -c ${bytes} /dev/zero | tr '\\0' 'x'`
? `[Console]::Out.Write('head-marker'); [Console]::Out.Write(('x' * ${bytes})); [Console]::Out.Write('tail-marker'); Start-Sleep -Milliseconds 100`
: `printf head-marker; head -c ${bytes} /dev/zero | tr '\\0' 'x'; printf tail-marker`
const withSession = <A, E, R>(directory: string, body: (registry: ToolRegistry.Interface) => Effect.Effect<A, E, R>) =>
Effect.gen(function* () {
@ -396,15 +396,18 @@ describe("ShellTool", () => {
reset()
const bytes = ShellTool.MAX_CAPTURE_BYTES + 1024
return withSession(tmp.path, (registry) =>
settleTool(registry, call({ command: overflowCommand(bytes) }, "call-overflow")),
settleTool(registry, call({ command: overflowMarkersCommand(bytes) }, "call-overflow")),
).pipe(
Effect.andThen((settled) =>
Effect.sync(() => {
expect(settled.output?.structured).toMatchObject({ exit: 0, truncated: true })
expect(settled.output?.content[0]).toMatchObject({
type: "text",
text: expect.stringContaining("output truncated; full output saved to:"),
text: expect.stringMatching(/tail-marker[\s\S]*output truncated; full output saved to:/),
})
const content = settled.output?.content[0]
if (content?.type === "text" && typeof content.text === "string")
expect(content.text.includes("head-marker")).toBe(false)
}),
),
)