refactor(logger): Restore cursor on ui5 serve termination - #1475
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log-update hides the terminal cursor on every render and only shows it again in its own done(), which InteractiveConsole calls from disable(). On CTRL+C the process is signal-terminated without disable() ever running, so the cursor stays hidden in the user's shell. The restore-cursor safety net (a bare "\x1b[?25h" with no newline) is also swallowed: the stderr write interceptor buffers non-newline-terminated writes into `partial` and only flushes them in disable(). Register a handler for SIGINT/SIGTERM/SIGHUP/SIGBREAK (and an `exit` catch-all) in enable(), removed in disable(). Each signal handler tears the live region down via disable(), then re-raises the signal with process.kill(process.pid, signal) rather than calling process.exit(). Re-raising lets the cooperating handlers in profile.js and ProjectBuilder still run their async cleanup, and lets the default disposition set the 128+n exit code. disable() removes the handlers before re-raise so the re-sent signal reaches the default disposition instead of looping. disable() now also writes the show-cursor escape explicitly to its own stream, after uninstalling the interceptor. log-update's done() targets the real process.stderr and is gated on isTTY, so it can be a no-op; the explicit write restores the cursor regardless and is observable in tests.
RandomByte
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July 23, 2026 15:02
d3xter666
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Jul 24, 2026
A second enable() without an intervening disable() overwrote every #signalHandlers map entry with fresh closures, stranding the first set of handlers on process. #deregisterSignalHandlers() iterates the map, so it could only detach the latest set, leaking the originals. Guard #registerSignalHandlers() on the map already being populated and return early, mirroring how disable() guards on #stopped. Registration and deregistration happen as a unit, so a single check covers all signals.
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The log-update package hides the terminal cursor on every render and only shows it again in its own
done(), which InteractiveConsole calls fromdisable(). On CTRL+C the process is signal-terminated withoutdisable()ever running, so the cursor stays hidden in the user's shell. The restore-cursor safety net (a bare\x1b[?25hwith no newline) is also swallowed: the stderr write interceptor buffers non-newline-terminated writes intopartialand only flushes them indisable().Register a handler for SIGINT/SIGTERM/SIGHUP/SIGBREAK (and an
exitcatch-all) in enable(), removed in disable(). Each signal handler tears the live region down via disable(), then re-raises the signal with process.kill(process.pid, signal) rather than calling process.exit(). Re-raising lets the cooperating handlers in profile.js and ProjectBuilder still run their async cleanup, and lets the default disposition set the 128+n exit code.disable()removes the handlers before re-raise so the re-sent signal reaches the default disposition instead of looping.disable()now also writes the show-cursor escape explicitly to its own stream, after uninstalling the interceptor. log-update's done() targets the real process.stderr and is gated on isTTY, so it can be a no-op; the explicit write restores the cursor regardless and is observable in tests.