fix(terminal): prevent inline terminal cmd.exe fallback on Windows - #1673
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BaseTerminalProcess.execaOptions previously passed shell: BaseTerminal.getExecaShellPath() || true, so an unset execaShellPath fell back to shell:true. On that branch the shell process becomes a bare cmd.exe instead of the resolved PowerShell/Zoo profile, causing the inline terminal to silently downgrade to Windows Command Prompt. Change the fallback to ?? getShell(), which resolves through VS Code profile config -> Zoo override -> userInfo -> env -> allowlisted default (never shell:true). Explicit execaShellPath still wins verbatim, and a deliberately selected cmd.exe profile is preserved via getShell(). Adds a cross-path regression suite covering explicit-win, unset->getShell(), PowerShell-via-configured-profiles, deliberate-Command-Prompt preservation, and never-shell:true.
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Priority: ➖ Normal Estimated code review effort: 2 (Simple) | ~10 minutes Change: Bug fix · Severity of issue fixed: Medium 🚥 Pre-merge checks | ✅ 7 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (7 passed)
Full details: Regression EvidenceExplanation The PR adds focused unit coverage for an undefined path and a truthy explicit path, but it omits the empty-string branch introduced by the second commit. Resolution Add a focused ExecaTerminalProcess test that sets
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Inline comments:
In `@src/integrations/terminal/__tests__/ExecaTerminalProcess.spec.ts`:
- Line 224: Update the assertion in the PowerShell shell-option test to require
the exact mocked path returned by getShell(), using capturedShellOption().shell
and the expected C:\Windows\System32\pwsh.exe value instead of a substring
check.
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src/integrations/terminal/ExecaTerminalProcess.tssrc/integrations/terminal/__tests__/ExecaTerminalProcess.spec.ts
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src/integrations/terminal/ExecaTerminalProcess.ts (1)
8-8: LGTM!Also applies to: 44-44
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Requesting changes for the inline terminal shell fallback regression described in the inline comment.
Use a truthy fallback so an empty persisted execaShellPath resolves through getShell() instead of being passed through as an empty shell value.
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Assert the exact mocked PowerShell path instead of matching only the executable name.
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Related GitHub Issue
Closes #705
Description
Fixes a Windows shell mismatch in the Inline Terminal Execa execution path.
When no explicit
execaShellPathwas configured, Execa usedshell: true, which lets Windows fall back to%ComSpec%(cmd.exe). This could cause commands to execute under Command Prompt even when Zoo had resolved PowerShell as the intended shell.The fix preserves an explicit
execaShellPathwhen configured and otherwise uses Zoo's existinggetShell()resolver.The change is intentionally limited to the Execa execution path and its regression tests.
Test Procedure
Verified the following:
execaShellPathoverrides are preserved unchanged.shell: true.ExecaTerminalProcess.spec.ts: 18/18 tests passing.tsc --noEmitpasses.git diff --checkpasses.%ComSpec%still set tocmd.exe; Inline Terminal successfully executed under PowerShell 7.6.6.Pre-Submission Checklist
Documentation Updates
Additional Notes
The production change is intentionally small: one shell-resolution import and one fallback change in
ExecaTerminalProcess.ts. No generated bundles, VSIX files, or unrelated changes are included.