fix(core): add historical sync on workspace connect (#23121)

packages/opencode/src/cli/cmd/tui/context/sdk.tsx

@@ -2,6 +2,7 @@ import { createOpencodeClient } from "@opencode-ai/sdk/v2"
 import type { GlobalEvent } from "@opencode-ai/sdk/v2"
 import { createSimpleContext } from "./helper"
 import { createGlobalEmitter } from "@solid-primitives/event-bus"
+import { Flag } from "@/flag/flag"
 import { batch, onCleanup, onMount } from "solid-js"
 
 export type EventSource = {
@@ -39,6 +40,8 @@ export const { use: useSDK, provider: SDKProvider } = createSimpleContext({
     let queue: GlobalEvent[] = []
     let timer: Timer | undefined
     let last = 0
+    const retryDelay = 1000
+    const maxRetryDelay = 30000
 
     const flush = () => {
       if (queue.length === 0) return
@@ -73,9 +76,20 @@ export const { use: useSDK, provider: SDKProvider } = createSimpleContext({
       const ctrl = new AbortController()
       sse = ctrl
       ;(async () => {
+        let attempt = 0
         while (true) {
           if (abort.signal.aborted || ctrl.signal.aborted) break
-          const events = await sdk.global.event({ signal: ctrl.signal })
+
+          const events = await sdk.global.event({
+            signal: ctrl.signal,
+            sseMaxRetryAttempts: 0,
+          })
+
+          if (Flag.OPENCODE_EXPERIMENTAL_WORKSPACES) {
+            // Start syncing workspaces, it's important to do this after
+            // we've started listening to events
+            await sdk.sync.start().catch(() => {})
+          }
 
           for await (const event of events.stream) {
             if (ctrl.signal.aborted) break
@@ -84,6 +98,12 @@ export const { use: useSDK, provider: SDKProvider } = createSimpleContext({
 
           if (timer) clearTimeout(timer)
           if (queue.length > 0) flush()
+          attempt += 1
+          if (abort.signal.aborted || ctrl.signal.aborted) break
+
+          // Exponential backoff
+          const backoff = Math.min(retryDelay * 2 ** (attempt - 1), maxRetryDelay)
+          await new Promise((resolve) => setTimeout(resolve, backoff))
         }
       })().catch(() => {})
     }
@@ -92,6 +112,12 @@ export const { use: useSDK, provider: SDKProvider } = createSimpleContext({
       if (props.events) {
         const unsub = await props.events.subscribe(handleEvent)
         onCleanup(unsub)
+
+        if (Flag.OPENCODE_EXPERIMENTAL_WORKSPACES) {
+          // Start syncing workspaces, it's important to do this after
+          // we've started listening to events
+          await sdk.sync.start().catch(() => {})
+        }
       } else {
         startSSE()
       }