1 files changed, 114 insertions, 0 deletions
diff --git a/packages/core/src/config/storage.ts b/packages/core/src/config/storage.ts
new file mode 100644
index 00000000..1459c8c7
--- /dev/null
+++ b/packages/core/src/config/storage.ts
@@ -0,0 +1,114 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import * as path from 'node:path';
+import * as os from 'os';
+import * as crypto from 'crypto';
+import * as fs from 'fs';
+
+export const GEMINI_DIR = '.gemini';
+export const GOOGLE_ACCOUNTS_FILENAME = 'google_accounts.json';
+const TMP_DIR_NAME = 'tmp';
+
+export class Storage {
+  private readonly targetDir: string;
+
+  constructor(targetDir: string) {
+    this.targetDir = targetDir;
+  }
+
+  static getGlobalGeminiDir(): string {
+    const homeDir = os.homedir();
+    if (!homeDir) {
+      return path.join(os.tmpdir(), '.gemini');
+    }
+    return path.join(homeDir, GEMINI_DIR);
+  }
+
+  static getMcpOAuthTokensPath(): string {
+    return path.join(Storage.getGlobalGeminiDir(), 'mcp-oauth-tokens.json');
+  }
+
+  static getGlobalSettingsPath(): string {
+    return path.join(Storage.getGlobalGeminiDir(), 'settings.json');
+  }
+
+  static getInstallationIdPath(): string {
+    return path.join(Storage.getGlobalGeminiDir(), 'installation_id');
+  }
+
+  static getGoogleAccountsPath(): string {
+    return path.join(Storage.getGlobalGeminiDir(), GOOGLE_ACCOUNTS_FILENAME);
+  }
+
+  static getUserCommandsDir(): string {
+    return path.join(Storage.getGlobalGeminiDir(), 'commands');
+  }
+
+  static getGlobalMemoryFilePath(): string {
+    return path.join(Storage.getGlobalGeminiDir(), 'memory.md');
+  }
+
+  static getGlobalTempDir(): string {
+    return path.join(Storage.getGlobalGeminiDir(), TMP_DIR_NAME);
+  }
+
+  getGeminiDir(): string {
+    return path.join(this.targetDir, GEMINI_DIR);
+  }
+
+  getProjectTempDir(): string {
+    const hash = this.getFilePathHash(this.getProjectRoot());
+    const tempDir = Storage.getGlobalTempDir();
+    return path.join(tempDir, hash);
+  }
+
+  ensureProjectTempDirExists(): void {
+    fs.mkdirSync(this.getProjectTempDir(), { recursive: true });
+  }
+
+  static getOAuthCredsPath(): string {
+    return path.join(Storage.getGlobalGeminiDir(), 'oauth_creds.json');
+  }
+
+  getProjectRoot(): string {
+    return this.targetDir;
+  }
+
+  private getFilePathHash(filePath: string): string {
+    return crypto.createHash('sha256').update(filePath).digest('hex');
+  }
+
+  getHistoryDir(): string {
+    const hash = this.getFilePathHash(this.getProjectRoot());
+    const historyDir = path.join(Storage.getGlobalGeminiDir(), 'history');
+    return path.join(historyDir, hash);
+  }
+
+  getWorkspaceSettingsPath(): string {
+    return path.join(this.getGeminiDir(), 'settings.json');
+  }
+
+  getProjectCommandsDir(): string {
+    return path.join(this.getGeminiDir(), 'commands');
+  }
+
+  getProjectTempCheckpointsDir(): string {
+    return path.join(this.getProjectTempDir(), 'checkpoints');
+  }
+
+  getExtensionsDir(): string {
+    return path.join(this.getGeminiDir(), 'extensions');
+  }
+
+  getExtensionsConfigPath(): string {
+    return path.join(this.getExtensionsDir(), 'gemini-extension.json');
+  }
+
+  getHistoryFilePath(): string {
+    return path.join(this.getProjectTempDir(), 'shell_history');
+  }
+}