Function exists

src/main/lib/git/security/secure-fs.ts:421–431

* Check if a file exists within a worktree. * * Returns false for non-existent files, symlink escapes, and validation failures.

(worktreePath: string, filePath: string)

	 * Returns false for non-existent files, symlink escapes, and validation failures.
	 */
	async exists(worktreePath: string, filePath: string): Promise<boolean> {
		try {
			assertRegisteredWorktree(worktreePath);
			const fullPath = resolvePathInWorktree(worktreePath, filePath);
			await assertRealpathInWorktree(worktreePath, fullPath);
			await stat(fullPath);
			return true;
		} catch {
			return false;
		}
	},

	/**
	 * Check if a file is a symlink that points outside the worktree.