Run shutdown on a normal quit, not only on SIGINT/SIGTERM - #87
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Raw mode (createCliRenderer) disables signal generation, so an interactive Ctrl+C never reaches Node as a real SIGINT — OpenTUI's own exitOnCtrlC handling calls CliRenderer.destroy() directly instead, which never fires SIGINT and therefore never ran wireProcessExit's shutdown(): layout state was never flushed and extensions never deactivated on a normal quit. destroy()'s finalizeDestroy() never calls process.exit (verified against the pinned @opentui/core@0.1.107 bundle) — the process exits only once the event loop drains — so main.ts now wires shutdown() to createCliRenderer's onDestroy config callback (renderShell.tsx's new ShellRenderDeps.onDestroy), chosen over the CliRenderEvents.DESTROY event because onDestroy fires at the very end of teardown and is already guarded by the library's own try/catch, whereas the DESTROY event fires mid-teardown through a plain EventEmitter.emit with no such protection. exitOnCtrlC itself is untouched, so Ctrl+C can never become unquittable. wireProcessExit's shutdown is refactored from a boolean-flag guard to a memoized promise (createShutdown) so a signal racing in while the destroy hook's teardown is still in flight awaits the same real completion instead of resolving early and letting process.exit(0) cut it off. It's now also bounded by a 2s timeout (SHUTDOWN_TIMEOUT_MS) using the same injectable ChordScheduler seam keymap/chords.ts already established, logging rather than hanging if a dispose() ever gets stuck. runTecode's headless-exit path now calls the same shutdown() instead of re-listing every dispose() call a second time. Adds requirements.md Req 12.3 and a design.md §3 shutdown point; tests (packages/cli/src/shutdownOnDestroy.test.ts) exercise the seam rather than a real terminal: a subprocess fixture proves runTecode really wires onDestroy to shutdown() (observed via layoutState's flush landing on disk, synchronized on theme.select's command-registry disposal rather than racing the layout debounce timer), plus direct createShutdown tests for idempotency in both destroy/signal orderings and the timeout path. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01WELSsojQQL1cTAR5iUUsTK
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Estimated code review effort: 4 (Complex) | ~45 minutes Merge Risk: 🔵 Low · up to The PR now runs persistence and disposal during normal quits, but if cleanup exceeds the two-second timeout, the fire-and-forget shutdown path may leave the process running instead of guaranteeing termination. The change is mergeable with explicit owner awareness or follow-up on timeout behavior. Suggested reviewers: Sequence Diagram(s)sequenceDiagram
participant OpenTUI as OpenTUI CliRenderer
participant Main as main.ts
participant Shutdown as createShutdown
participant Services as layoutState and services
OpenTUI->>Main: onDestroy()
Main->>Shutdown: invoke shared shutdown()
Shutdown->>Services: flush layout
Shutdown->>Services: dispose core services
Shutdown->>Services: deactivate extensions
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#86 added root.keybindingPresetConfigSync.dispose() to the inline shutdown list that this branch replaces wholesale with createShutdown, so git could not merge the two: taking either side alone silently drops one change. Resolved by keeping both — createShutdown's shared, memoized, timeout-bounded sequence, with keybindingPresetConfigSync folded into ShutdownRoot and the teardown list, plus #86's applyConfiguredKeybindingPreset() call retained at its assembly point. Without the former the preset's ConfigService subscription would leak on every quit. The disposable-count assertions move 18 -> 19. That count is what makes a dropped dispose fail rather than pass silently: removing the new line fails both idempotency tests. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01WELSsojQQL1cTAR5iUUsTK
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In `@packages/cli/src/main.ts`:
- Around line 1525-1544: Update the onDestroy callback to terminate the process
after shutdown settles, including when the shutdown timeout is reached, by
attaching a finally handler that calls process.exit(0) to the existing shutdown
invocation. Keep shutdown’s existing shared cleanup behavior and fire-and-forget
invocation intact.
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📒 Files selected for processing (5)
design.mdpackages/cli/src/main.tspackages/cli/src/renderShell.tsxpackages/cli/src/shutdownOnDestroy.test.tsrequirements.md
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…down() CodeRabbit (PR #87) caught a real gap: SHUTDOWN_TIMEOUT_MS bounds the shutdown() promise, not the pending flush()/dispose() I/O it raced against. A genuinely hung layoutState.flush() never lets performShutdown() reach its dispose() calls, so whatever real handles those would have closed stay open — and since onDestroy only did `void shutdown()`, nothing ever called process.exit once shutdown() gave up, leaving the process (and the editor) unquittable in exactly the case the timeout exists to guard against. onDestroy now mirrors the SIGINT/SIGTERM path exactly: `void shutdown().finally(() => process.exit(0))`. This costs nothing in the healthy case — shutdown() only resolves early via the timeout branch in the first place, so by the time .finally runs there is nothing further worth blocking exit on. Corrected the onDestroy TSDoc in main.ts and renderShell.tsx, which had asserted the false premise that the process would exit "naturally" once the event loop drains; updated design.md's shutdown point to match. Added a subprocess test with a layoutState.flush() that never resolves (backed by a real, still-armed timer standing in for whatever real handles a completed teardown would have closed) and confirmed it hangs past a bounded wait without the fix, then exits cleanly with it. Also had to rework the existing "wires onDestroy to shutdown()" fixture: once onDestroy calls process.exit(0), it settles within microtask timescale, so any post-hoc polling in the fixture was racing (and losing to) that exit; switched to a synchronous process.on("exit", ...) listener, gated on theme.select's command-registration disposal rather than state.json's content (layoutState.update()'s own real debounce timer can write that file on its own regardless of whether shutdown() ever ran). Re-verified the mutation check: removing the onDestroy wiring still fails the first test. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01WELSsojQQL1cTAR5iUUsTK
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fix #84
wireProcessExitregisteredshutdown()onSIGINT/SIGTERMonly, and on a normal interactive quit neither fires. Soawait root.layoutState.flush(), ~15 servicedispose()calls, andawait root.hostRef.current?.disposeAll()(extensiondeactivate) never ran. Layout state was silently lost on every quit and extensions never deactivated.The reason SIGINT never fires:
createCliRenderer()callsstdin.setRawMode(true), and raw mode disables signal generation for Ctrl+C —\x03arrives as ordinary input. OpenTUI handles it in its own keypress path,process.nextTick(() => this.destroy()), withexitOnCtrlCdefaulting totrue.Found while investigating #82; unrelated to that fix.
Why not
exitOnCtrlC: falseThe obvious fix — disable OpenTUI's handling and bind quit ourselves — risks an editor that cannot be exited at all if anything about the binding is wrong, and that cannot be verified in a sandbox with no TTY.
It is also unnecessary.
CliRenderer.destroy()is synchronous and idempotent, delegates tofinalizeDestroy(), andfinalizeDestroy()never callsprocess.exit— the process exits naturally once the event loop drains. So an asyncshutdown()started from a destroy hook keeps the loop alive on its own pending fs I/O and completes before exit. Ctrl+C keeps being handled entirely by OpenTUI; this change only interposes cleanup.onDestroyrather than theDESTROYeventrenderShell.tsxalready subscribes toCliRenderEvents.CAPABILITIES, so the event style had precedent — but reading the bundle,finalizeDestroy()emits"destroy"partway through teardown via a plainEventEmitter.emitwith no try/catch, andcleanupBeforeDestroy()has already removed the renderer's ownuncaughtExceptionhandler by then. A throwing listener would escape uncaught and abort the rest of teardown, including root and native-renderer cleanup.onDestroyis invoked at the very end, after teardown completes, inside the library's own try/catch, and is a first-class typed field onCliRendererConfig. It is the safer seam.Implementation
createShutdown(root, deps)replaces the old booleanshuttingDownflag with a memoized promise. That matters: a signal arriving while the destroy hook's teardown is still in flight previously resolved early, lettingprocess.exit(0)cut the flush off mid-write. It now awaits the same real completion.SHUTDOWN_TIMEOUT_MS = 2000through the existing injectableChordSchedulerseam rather than a baresetTimeout— a hungshutdown()would otherwise leave the editor unquittable, reintroducing the exact risk this design avoids. On timeout it logs and lets teardown proceed.runTecodepasses() => { void shutdown(); }intocreateCliRenderer({ onDestroy })via a newShellRenderDeps.onDestroy. Fire-and-forget is correct here — the pending I/O keeps the loop alive.SIGINT/SIGTERMregistration is unchanged (kill, and any non-raw-mode context, still need it). The headless exit path now calls the sameshutdowninstead of re-listing all 15+ dispose calls a second time.Tests
The real Ctrl+C path cannot be exercised here — no TTY, and
main.tsforces the no-oprenderShellHeadlesswhen stdout is not a TTY — so the tests target the seam.A subprocess fixture proves
runTecodegenuinely wiresonDestroytoshutdown(), observed throughlayoutState's real disk write. It synchronises ontheme.select's command-registry disposal (which runs strictly afterflush()) rather than on the 250 ms layout debounce timer — the implementer found that racing the debounce made the test pass even with the wiring removed, which is exactly the kind of vacuous test this repo has been bitten by before.Plus direct
createShutdowntests for idempotency in both destroy→signal and signal→destroy orderings, and for the timeout path.Mutation-verified independently: deleting the
onDestroy: () => { void shutdown(); }block fails that first test (fixture.timeout, exit code 1 vs expected 0) and leaves the other three untouched.What is still unverified
A real-terminal confirmation that Ctrl+C still quits cleanly and that layout state now persists. Neither is reachable in this environment. The design deliberately leaves OpenTUI's Ctrl+C handling untouched precisely so that this change cannot break quitting, but that reasoning is from reading the bundle, not from a live run.
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bun test1592 pass / 1 skip / 0 fail (from 1588 on main),bunx tsc --noEmitclean,bun run lintclean.🤖 Generated with Claude Code
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