[Fix] Commands stay Running when user closes their terminal - #1363
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📝 SummarySummary by CodeRabbit
WalkthroughTerminal closure now finalizes active shell processes, cancels pending shell-integration waits, clears terminal state, and prevents duplicate completion. The registry routes close events through this cleanup. Tests and a bounded lifecycle model cover closure interleavings. ChangesTerminal closure handling
Priority: ➖ Normal Estimated code review effort: 4 (Complex) | ~45 minutes Change: Bug fix · Severity of issue fixed: Medium Sequence Diagram(s)sequenceDiagram
participant VSCodeTerminal
participant TerminalRegistry
participant Terminal
participant TerminalProcess
VSCodeTerminal->>TerminalRegistry: Emit terminal close
TerminalRegistry->>Terminal: Call handleClose()
Terminal->>TerminalProcess: Call handleTerminalClosed()
TerminalProcess->>Terminal: Complete shell execution with undefined exit code
TerminalRegistry->>TerminalRegistry: Remove terminal from registry
Merge Risk: ⚪ Minimal · up to The terminal-close path has no identified unresolved merge risk. 🚥 Pre-merge checks | ✅ 8✅ Passed checks (8 passed)
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Inline comments:
In `@src/integrations/terminal/__tests__/TerminalRegistry.spec.ts`:
- Line 305: Extend the TerminalRegistry regression coverage by exercising the
real TerminalProcess.run() stream path: emit output, close the terminal before
onDidEndTerminalShellExecution, await the command result, and assert both
buffered output delivery and iterator cleanup. Keep the existing
direct-construction test unchanged unless needed, and place the regression at
the lowest valid harness with behavior-focused assertions.
- Line 350: Strengthen the assertions for completedSpy in both affected tests to
verify the callback payload, requiring an empty output string and the expected
process object rather than only checking call count. Keep the existing once-only
invocation requirement alongside these argument assertions.
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Inline comments:
In `@src/integrations/terminal/__tests__/TerminalRegistry.spec.ts`:
- Line 376: Update the affected TerminalRegistry tests to capture
terminal.process before the callback closure and assert the callback receives
that exact reference instead of expect.any(TerminalProcess). Apply this to each
specified completedSpy assertion while preserving the existing output argument
checks.
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GitHub Actions: Changed-code mutation testing / 0_mutation-diff.txt: [Fix] Commands stay Running when user closes their terminal
Conclusion: failure
##[group]Run node scripts/stryker-diff.mjs ci --base "$BASE_SHA" --head "$HEAD_SHA"
�[36;1mnode scripts/stryker-diff.mjs ci --base "$BASE_SHA" --head "$HEAD_SHA"�[0m
shell: /usr/bin/bash -e {0}
env:
PNPM_HOME: /home/runner/setup-pnpm/node_modules/.bin
STORE_PATH: /home/runner/setup-pnpm/node_modules/.bin/store/v10
BASE_SHA: f424bbbe490f558d06c9c81e3c57e7e7bdeee6d5
HEAD_SHA: 21a292b04865f1526c3b55506c2965203a1258c0
##[endgroup]
Mutation-testing 1 package(s) from merge base f424bbbe490f: extension (68 lines)
##[error]Survived ConditionalExpression mutant (replacement: false). See the job summary for the complete list and resolution guidance.
GitHub Actions: Changed-code mutation testing / mutation-diff: [Fix] Commands stay Running when user closes their terminal
Conclusion: failure
##[group]Run node scripts/stryker-diff.mjs ci --base "$BASE_SHA" --head "$HEAD_SHA"
�[36;1mnode scripts/stryker-diff.mjs ci --base "$BASE_SHA" --head "$HEAD_SHA"�[0m
shell: /usr/bin/bash -e {0}
env:
PNPM_HOME: /home/runner/setup-pnpm/node_modules/.bin
STORE_PATH: /home/runner/setup-pnpm/node_modules/.bin/store/v10
BASE_SHA: f424bbbe490f558d06c9c81e3c57e7e7bdeee6d5
HEAD_SHA: 21a292b04865f1526c3b55506c2965203a1258c0
##[endgroup]
Mutation-testing 1 package(s) from merge base f424bbbe490f: extension (68 lines)
##[error]Survived ConditionalExpression mutant (replacement: false). See the job summary for the complete list and resolution guidance.
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Require regression coverage at the lowest valid harness with behavior-focused assertions, including relevant negative, error, false/unset, and boundary cases.
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🤖 Prompt for all review comments with AI agents
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Inline comments:
In `@src/integrations/terminal/TerminalProcess.ts`:
- Around line 52-54: Remove the constructor’s no_shell_integration handler that
calls completeBeforeExecution, and keep stream-timeout completion in run() so
the "stream did not start" diagnostic reaches completed consumers. Ensure
completeBeforeExecution is invoked only for the shell-integration-unavailable
path.
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Require regression coverage at the lowest valid harness with behavior-focused assertions, including relevant negative, error, false/unset, and boundary cases.
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Files:
src/integrations/terminal/__tests__/TerminalProcess.spec.ts
Check strict typing and exhaustive behavior across normal, boundary, error, cancellation, retry, and compatibility paths.
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src/integrations/terminal/__tests__/TerminalProcess.spec.tssrc/integrations/terminal/TerminalProcess.tsscripts/check-terminal-lifecycle.ts
Verify extension/webview contracts, cancellation and error propagation, VS Code lifecycle correctness, and behavior under retries and partial failure.
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src/integrations/terminal/__tests__/TerminalProcess.spec.tssrc/integrations/terminal/TerminalProcess.ts
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🔇 Additional comments (4)
src/integrations/terminal/TerminalProcess.ts (2)
67-88: LGTM!Also applies to: 90-126
246-246: LGTM!Also applies to: 360-360, 370-380, 579-579
src/integrations/terminal/__tests__/TerminalProcess.spec.ts (1)
62-109: LGTM!Also applies to: 115-115, 126-126, 132-244, 275-377
docs/architecture/task-lifecycle-model.md (1)
9-9: LGTM!Also applies to: 15-17, 54-59
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What changed
pnpm lifecycle:model-check, including atomic process registration/release, constrained supersession, explicit current-owner and superseded-error transitions, and fail-closed depth bounds.Why this change was made
VS Code can omit both the shell execution end event and the OSC completion marker when a terminal is disposed. That left Zoo Code commands marked as Running indefinitely and blocked subsequent chat messages. Terminal closure must release every command and lifecycle resource associated with that terminal, and its bounded model must exhaust the reachable graph rather than silently truncate exploration.
Closes #1362.
Impact
Closing a VS Code terminal now interrupts all startup-waiting and active Zoo Code commands tied to it, preserves buffered output and timeout diagnostics, releases stream and shell-integration resources, clears matching running and hot state, and prevents duplicate or stale completion. The changed-code mutation gate passes across all 127 executable lines without survivors or uncovered mutants, all lifecycle models pass, and the full Zoo Code suite passes 8,470 tests with 39 skipped.
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