From 482aeaff102f1f97f67bed04442dbd23a6424f2d Mon Sep 17 00:00:00 2001
From: Evan Senter <evansenter@gmail.com>
Date: Fri, 18 Apr 2025 21:55:02 +0100
Subject: Warn if `npm run start` is out of date. (#20)

* Adding some wiring to allow the Ink app to warn if there are local development changes that haven't been captured in the recent build of the Gemini CLI.

* Adding a new useAppEffects.ts file that wores some useEffect handlers in.

* Updating package-lock.json to resolve `npm ci` issues.

* Updating package-lock.json and package.json to resolve `npm ci` issues.
---
 packages/cli/src/ui/hooks/useAppEffects.ts | 61 ++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 packages/cli/src/ui/hooks/useAppEffects.ts

(limited to 'packages/cli/src/ui/hooks')

diff --git a/packages/cli/src/ui/hooks/useAppEffects.ts b/packages/cli/src/ui/hooks/useAppEffects.ts
new file mode 100644
index 00000000..16f862b0
--- /dev/null
+++ b/packages/cli/src/ui/hooks/useAppEffects.ts
@@ -0,0 +1,61 @@
+import { useEffect } from 'react';
+import fs from 'fs';
+import path from 'path';
+import os from 'os';
+import type { HistoryItem } from '../types.js';
+
+const warningsFilePath = path.join(os.tmpdir(), 'gemini-code-cli-warnings.txt');
+
+// Effect to handle startup warnings
+export function useStartupWarnings(
+  setStartupWarnings: React.Dispatch<React.SetStateAction<string[]>>,
+) {
+  useEffect(() => {
+    try {
+      if (fs.existsSync(warningsFilePath)) {
+        const warningsContent = fs.readFileSync(warningsFilePath, 'utf-8');
+        setStartupWarnings(
+          warningsContent.split('\n').filter((line) => line.trim() !== ''),
+        );
+        try {
+          fs.unlinkSync(warningsFilePath);
+        } catch (unlinkErr: any) {
+          setStartupWarnings((prev) => [
+            ...prev,
+            `Warning: Could not delete temporary warnings file.`,
+          ]);
+        }
+      }
+    } catch (err: any) {
+      setStartupWarnings((prev) => [
+        ...prev,
+        `Error checking/reading warnings file: ${err.message}`,
+      ]);
+    }
+  }, [setStartupWarnings]); // Include setStartupWarnings in dependency array
+}
+
+// Effect to handle initialization errors
+export function useInitializationErrorEffect(
+  initError: string | null,
+  history: HistoryItem[],
+  setHistory: React.Dispatch<React.SetStateAction<HistoryItem[]>>,
+) {
+  useEffect(() => {
+    if (
+      initError &&
+      !history.some(
+        (item) => item.type === 'error' && item.text?.includes(initError),
+      )
+    ) {
+      setHistory((prev) => [
+        ...prev,
+        {
+          id: Date.now(),
+          type: 'error',
+          text: `Initialization Error: ${initError}. Please check API key and configuration.`,
+        } as HistoryItem,
+      ]);
+    }
+  }, [initError, history, setHistory]); // Include setHistory in dependency array
+} 
\ No newline at end of file
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