The unit-darwin job ran the whole unit inventory at Vitest's 5000 ms default
on a shared 3-vCPU macos-latest runner; the first two master runs after #5292
each timed out a different set of cases that pass in under a second on a quiet
host. Every other whole-inventory lane raises the budget through
DSH_COVERAGE_TEST_TIMEOUT_MS=90000.
The job now sets that variable and runs `pnpm run check:ci:unit`, a run-gates
aggregate that is `pnpm run test` (native build, then `vitest run`) through the
path that consumes it. ci-unit receives no CI worker settings, so the inventory
inherits the environment `pnpm run test` finds: on a 3-CPU host the defaults
would inject DSH_COVERAGE_PARTITIONS=2, which run-gates.spec.ts reads as a
partitioned coverage lane.
Fixes#5325
Review follow-up: name the parity job in the workflow header, point the unit
comment at ci.yml's Linux jobs instead of a nonexistent `checks` job, state the
budget as a completion ceiling and raise it to 60 minutes so the slowest observed
runner keeps headroom, and let the owning Agent Note describe the budget and the
workflow's statuses without restating numbers the workflow owns.
The seatbelt leg of the sandbox-e2e matrix also ran `pnpm run test`, and the
complete unit suite takes 16 to well over 20 minutes on macos-latest, so the
shared 20-minute job budget cancelled the leg on most master pushes — before
the Seatbelt confinement e2e ever ran. Move the parity run into a `unit-darwin`
job with a 45-minute budget; the four e2e legs keep 20 minutes.
The per-platform failover repository variables (DSH_CI_FAILOVER_LINUX and
DSH_CI_FAILOVER_WINDOWS) accept a third value alongside the existing
selfhosted routing. Set by a repository writer, the value retargets the
always-on pull-request and master lanes onto the matching hosted-runner
labels (16-core pools map to the 16-vCPU tier, standard legs to 4-vCPU);
unset or any other value keeps today's runners, so the leg is dormant until
a writer opts in - a canary path for capacity fallback, never the default.
Participating jobs: the three enterprise Linux workers, the node-compat
legs, the four Windows lanes, and the all-checks-passed verdict in ci.yml;
expected-filenames; the sandbox bwrap leg; and the two manual benchmark
matrices (4-32 vCPU tiers map to equivalents; 64/96-core rows keep the
fleet labels). Everything pinned to its own runner by spec, credential, or
host capability keeps it under every value, and the release-shaped chains
stay entirely hosted. request-review.yml was retired on master while this
work was in flight and the branch takes the deletion.
Specs pin the new branches: ci-workflow.spec.ts asserts the labels appear
in the extended selectors, and ci-compatible-selfhosted.spec.ts evaluates
the routing mode.
apps/cli/cordis.yml now bakes in the production OTLP endpoint; CI boots of
the web composition (e2e, snapshots, built smokes) must not stream test
sessions there. DSH_TELEMETRY_DISABLED=1 at the workflow level disables
the telemetry row before its load-time url validation; the telemetry e2e
still runs — it overrides the variable to empty for its child process and
points DSH_TELEMETRY_OTLP_URL at its in-test collector.
Review follow-up on the symmetric-cache conversion: provisioning and
caching are separable concerns, so the remaining 8 corepack enable
sites (the three enterprise restore-only PR jobs, the required Windows
job, serial-macos/serial-windows, the cache-less ci.yml jobs, and
sandbox.yml) now provision pnpm via pnpm/action-setup@v4 too — only
the provisioning line moves; every deliberate cache shape (enterprise
restore-only pairing, serial-linux producer, Windows cache-less) is
byte-preserved. corepack is gone from CI entirely.
Agent Note retitled to the decision's real shape (provisioning policy,
with caching as per-job policy on top), EN+ZH, pair re-recorded;
composite-action and stop-at-cache-workflows alternatives recorded.
ctx.sandbox (dsh-sandbox): confine(argv, policy) returns the argv to spawn
instead — wrapped so the process and its children run confined — plus the
enforcement completeness and the backend denial/runner-failure dialects;
no usable backend throws the fail-closed SANDBOX_UNAVAILABLE. Policy rides
per call. dsh-sandbox-local selects by platform and caches the verdict:
multi-candidate chains probe FUNCTIONALLY in preference order (Linux:
bwrap → the registry-installed node-addon-landlock-run launcher), a sole
candidate is selected unprobed (darwin: sandbox-exec/Seatbelt) and fails
closed at execution via runnerFailureSignatures; win32 is a reserved empty
chain. Profile parity is honest per backend (documented temp-area and ABI
differences; enforcement full|partial is a structured result fact).
CI: the sandbox-e2e matrix proves real-kernel confinement per rung (bwrap,
Landlock per architecture through the registry-installed launcher,
Seatbelt), failing on a silent all-skip; the packed-install rehearsal
installs the launcher family from the registry and asserts the binary
executable apart from kernel enforcement.
Tianyi Cui