Merge #14350: Add WalletLocation class

65f3672f3b wallet: Refactor to use WalletLocation (João Barbosa)
01a4c095c8 wallet: Add WalletLocation utility class (João Barbosa)

Pull request description:

  Advantages of this change:
   - avoid resolving wallet absolute path and name repetitively and in multiple places;
   - avoid calling `GetWalletDir` in multiple places;
   - extract these details from the actual wallet implementation.

  The `WalletLocation` class can be a way to represent a wallet not yet loaded that exists in the wallet directory.

Tree-SHA512: 71ec09786e038499710e7acafe92d66ab9883fc894964e267443ae9c10a6872a10995c3987a169c436a4e793dae96b28fb97bd7f78483c4b72ac930fa23f8686

src/wallet/walletutil.cpp

@@ -80,3 +80,14 @@ std::vector<fs::path> ListWalletDir()
 
     return paths;
 }
+
+WalletLocation::WalletLocation(const std::string& name)
+    : m_name(name)
+    , m_path(fs::absolute(name, GetWalletDir()))
+{
+}
+
+bool WalletLocation::Exists() const
+{
+    return fs::symlink_status(m_path).type() != fs::file_not_found;
+}