feat(tui): restore git branch display in status bar

packages/opencode/src/cli/cmd/tui/app.tsx

@@ -27,6 +27,7 @@ import { ExitProvider, useExit } from "./context/exit"
 import { Session as SessionApi } from "@/session"
 import { TuiEvent } from "./event"
 import { KVProvider, useKV } from "./context/kv"
+import { StatusBar } from "./component/status-bar"
 import { Provider } from "@/provider/provider"
 import { ArgsProvider, useArgs, type Args } from "./context/args"
 
@@ -423,36 +424,7 @@ function App() {
           </Match>
         </Switch>
       </box>
-      <box
-        height={1}
-        backgroundColor={theme.backgroundPanel}
-        flexDirection="row"
-        justifyContent="space-between"
-        flexShrink={0}
-      >
-        <box flexDirection="row">
-          <box flexDirection="row" backgroundColor={theme.backgroundElement} paddingLeft={1} paddingRight={1}>
-            <text fg={theme.textMuted}>open</text>
-            <text fg={theme.text} attributes={TextAttributes.BOLD}>
-              code{" "}
-            </text>
-            <text fg={theme.textMuted}>v{Installation.VERSION}</text>
-          </box>
-          <box paddingLeft={1} paddingRight={1}>
-            <text fg={theme.textMuted}>{process.cwd().replace(Global.Path.home, "~")}</text>
-          </box>
-        </box>
-        <box flexDirection="row" flexShrink={0}>
-          <text fg={theme.textMuted} paddingRight={1}>
-            tab
-          </text>
-          <text fg={local.agent.color(local.agent.current().name)}>{""}</text>
-          <text bg={local.agent.color(local.agent.current().name)} fg={theme.background} wrapMode={undefined}>
-            <span style={{ bold: true }}> {local.agent.current().name.toUpperCase()}</span>
-            <span> AGENT </span>
-          </text>
-        </box>
-      </box>
+      <StatusBar />
     </box>
   )
 }

packages/opencode/src/cli/cmd/tui/component/status-bar.tsx

@@ -0,0 +1,48 @@
+import { useTheme } from "@tui/context/theme"
+import { useLocal } from "@tui/context/local"
+import { Installation } from "@/installation"
+import { Global } from "@/global"
+import { TextAttributes } from "@opentui/core"
+import { useGitBranch } from "./status-bar/git"
+
+export function StatusBar() {
+  const { theme } = useTheme()
+  const local = useLocal()
+  const { branch } = useGitBranch()
+
+  return (
+    <box
+      height={1}
+      backgroundColor={theme.backgroundPanel}
+      flexDirection="row"
+      justifyContent="space-between"
+      flexShrink={0}
+    >
+      <box flexDirection="row">
+        <box flexDirection="row" backgroundColor={theme.backgroundElement} paddingLeft={1} paddingRight={1}>
+          <text fg={theme.textMuted}>open</text>
+          <text fg={theme.text} attributes={TextAttributes.BOLD}>
+            code{" "}
+          </text>
+          <text fg={theme.textMuted}>v{Installation.VERSION}</text>
+        </box>
+        <box paddingLeft={1} paddingRight={1}>
+          <text fg={theme.textMuted}>
+            {process.cwd().replace(Global.Path.home, "~")}
+            {branch() ? `:${branch()}` : ""}
+          </text>
+        </box>
+      </box>
+      <box flexDirection="row" flexShrink={0}>
+        <text fg={theme.textMuted} paddingRight={1}>
+          tab
+        </text>
+        <text fg={local.agent.color(local.agent.current().name)}>{""}</text>
+        <text bg={local.agent.color(local.agent.current().name)} fg={theme.background} wrapMode={undefined}>
+          <span style={{ bold: true }}> {local.agent.current().name.toUpperCase()}</span>
+          <span> AGENT </span>
+        </text>
+      </box>
+    </box>
+  )
+}

packages/opencode/src/cli/cmd/tui/component/status-bar/git.tsx

@@ -0,0 +1,25 @@
+import { createSignal, createEffect, onCleanup } from "solid-js"
+import { $ } from "bun"
+import { watch } from "fs"
+
+export function useGitBranch() {
+  const [branch, setBranch] = createSignal<string>("")
+
+  createEffect(async () => {
+    const gitCheck = await $`git rev-parse --is-inside-work-tree`.cwd(process.cwd()).quiet().nothrow()
+    if (gitCheck.exitCode === 0) {
+      const b = await $`git branch --show-current`.cwd(process.cwd()).quiet().nothrow().text()
+      setBranch(b.trim())
+
+      // Set up watcher for .git/HEAD
+      const gitHeadPath = `${process.cwd()}/.git/HEAD`
+      const watcher = watch(gitHeadPath, { persistent: false }, async () => {
+        const newBranch = await $`git branch --show-current`.cwd(process.cwd()).quiet().nothrow().text()
+        setBranch(newBranch.trim())
+      })
+      onCleanup(() => watcher.close())
+    }
+  })
+
+  return { branch }
+}