Add live git status indicators (#458)

apps/yaak-client/lib/gitWorktreeStatus.ts

@@ -0,0 +1,22 @@
+import type { GitWorktreeStatus, GitWorktreeStatusEntry } from "@yaakapp-internal/git";
+import { atom } from "jotai";
+import { atomFamily } from "jotai-family";
+import { selectAtom } from "jotai/utils";
+
+export const gitWorktreeStatusAtom = atom<GitWorktreeStatus | null>(null);
+
+export const gitWorktreeStatusByModelIdAtom = atom<Record<string, GitWorktreeStatusEntry>>({});
+
+export const gitWorktreeStatusFamily = atomFamily(
+  (modelId: string) =>
+    selectAtom(
+      gitWorktreeStatusByModelIdAtom,
+      (statusByModelId) => statusByModelId[modelId] ?? null,
+      (a, b) =>
+        a?.relaPath === b?.relaPath &&
+        a?.status === b?.status &&
+        a?.staged === b?.staged &&
+        a?.modelId === b?.modelId,
+  ),
+  Object.is,
+);