04 · Smoke-exec cascade

scripts/smoke-exec.sh is a cascading shell script that exercises every primitive lakeshore daemon exec supports. Cheap, comprehensive, and unforgiving — it bails on the first failure so you fix one thing at a time.

Exercises

In order, one check per aspect of the exec wire:

Exactly one live daemon is registered (or $LAKESHORE_DAEMON names one).
Minimal stdout round-trip — echo hi.
stderr stays separated from stdout.
Exit code propagation — exit 7 gives the CLI rc 7.
--env passthrough.
--stdin - piping.
Filesystem write/read on the daemon.
--timeout enforcement — the wire's -2, which bash reports as 254.
Long-poll spanning multiple poll windows (sleep 40).
python3 on the host.

Requires

A control plane reachable at $LAKESHORE_URL (or a saved lakeshore auth login when it's unset).
Exactly one live daemon registered in the namespace. The script first runs daemon cleanup --older-than 5m --yes to reap stale rows, then refuses to guess on zero or multiple.

Set LAKESHORE_DAEMON=<id-or-label> to skip that discovery entirely and target a specific daemon.

Run

bash

# Sibling checkouts live in the container repo:
#   git clone --recurse-submodules https://github.com/dreamlake-ai/lakeshore-workspace.git
export LAKESHORE_WORKSPACE=~/lakeshore-workspace

cd "$LAKESHORE_WORKSPACE"
LAKESHORE_URL=http://localhost:8080 ./scripts/smoke-exec.sh
# or press `s` on the `smoke` pane in mprocs

The script prefers the local build at lakeshore/dist/cli/index.js so you test what's under iteration. Set LK=lakeshore to run the globally-installed npm package instead.

bash

LK=lakeshore ./scripts/smoke-exec.sh
LAKESHORE_DAEMON=ge-debug-1 ./scripts/smoke-exec.sh

Expected output

A green ✓ and a label per check, ending in ✓ all N checks passed against <url>. Any red ✗ stops the cascade and the script exits 1.

If it fails

Check	Symptom	Likely cause
1	`no live daemons registered`	The nymph pane stopped — restart it, or set `LAKESHORE_DAEMON`.
1	`N live daemons — refuse to guess`	An earlier run left daemons registered. Kill the extras (`lakeshore daemon kill --prefix ... --yes`) or set `LAKESHORE_DAEMON`.
1	`daemon list reachable` failed	The control plane is down, or auth isn't configured.
4	wrong exit code	Exit-code propagation broken between the daemon, the control plane, and the CLI.
8	`expected 254 or -2, got …`	Timeout handling. The daemon either ran past the deadline or surfaced its own error code instead of the wire's `-2`.
9	long-poll check failed	The CLI's poll window or the control plane's long-poll budget regressed.

Status

Manual. Tracked via the script's exit code.

→ 05 · Hello, queue-bound UDF