Files
yonlu 8d46c4abb7
CI / check (push) Skipped
CI / e2e (push) Skipped
fix(scripts): refuse to start dev-headless on a port somebody else holds
dev-headless.sh checked the PID in *this* worktree's .dev/app.pid and
nothing else, so an app orphaned by a deleted worktree went on listening
with nothing left to stop it — `make dev-stop` only kills the pid it
wrote. The new app then started, failed to bind, exited, and every
subsequent curl and playwright-cli call went to the other process: the
harness reported facts about an app nobody asked for.

That fails a long way from its cause. It presented as "no such table:
libraries" against a *freshly created* YJ_HOME, which reads exactly like
applySchema or staleshape.go having gone wrong, with a zero-byte app.log
beside it saying nothing.

The startup wait cannot catch this, because its health check is satisfied
by any app on the port — which is precisely the failure — so the check is
before the launch and refuses rather than warns. It names the holder's
pid, cmdline and /proc/<pid>/cwd, which is what identifies the checkout
and says "(deleted)" for the case this exists for. It does not suggest
`make dev-stop`: the PID-file check has already passed, so by
construction dev-stop does not know about this process and would report
success while changing nothing. --port already covers the legitimate
second-app case.

The second, cheaper guard the report asks for goes in after the wait:
"the port answered" is not "the app we started answered", so a dead
APP_PID at that point is now an error with the log tail rather than a
success message about somebody else's process.

Closes #119
2026-08-19 14:08:05 -04:00
..