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feat(server): wire Server.listen() through native HttpApi listener (kill-switch)

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When the effect-httpapi backend is selected, Server.listen() now delegates
to HttpApiListener.listen() — a native Bun.serve listener with inline
WebSocket upgrade handling — instead of routing through the Hono runtime
adapter (Hono.fetch + createBunWebSocket).

The Hono backend path is unchanged, and a kill-switch env var
(OPENCODE_HTTPAPI_LEGACY_LISTENER) forces the effect-httpapi backend back
through the Hono adapter as an escape hatch if the native listener
regresses for a user.

This unblocks the Hono deletion arc by giving the native listener real
production traffic on dev/beta/local channels (where
OPENCODE_EXPERIMENTAL_HTTPAPI defaults on) while leaving prod/latest
channels on the Hono path.
This commit is contained in:
Kit Langton 2026-05-03 09:24:18 -04:00
commit adc5f528af
2 changed files with 35 additions and 10 deletions
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6
packages/core/src/flag/flag.ts
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@ -94,6 +94,12 @@ export const Flag = {
OPENCODE_EXPERIMENTAL_HTTPAPI:
truthy("OPENCODE_EXPERIMENTAL_HTTPAPI") ||
(!falsy("OPENCODE_EXPERIMENTAL_HTTPAPI") && HTTPAPI_DEFAULT_ON_CHANNELS.has(InstallationChannel)),
// Kill-switch that forces the effect-httpapi backend back through the legacy
// hono runtime adapter (Hono.fetch + createBunWebSocket) instead of the
// native Bun.serve listener. Defaults to false; set to "true"/"1" to revert
// if the native listener regresses for a user. Has no effect when the hono
// backend is selected.
OPENCODE_HTTPAPI_LEGACY_LISTENER: truthy("OPENCODE_HTTPAPI_LEGACY_LISTENER"),
OPENCODE_EXPERIMENTAL_WORKSPACES: OPENCODE_EXPERIMENTAL || truthy("OPENCODE_EXPERIMENTAL_WORKSPACES"),
OPENCODE_EXPERIMENTAL_EVENT_SYSTEM: OPENCODE_EXPERIMENTAL || truthy("OPENCODE_EXPERIMENTAL_EVENT_SYSTEM"),