From a1b694a50bba31ac77da68ecc059e96aeedeb7b7 Mon Sep 17 00:00:00 2001
From: Martchus <martchus@gmx.net>
Date: Wed, 3 Jul 2019 23:59:07 +0200
Subject: [PATCH] Allow creating a new file in PasswordFile::save()

to ease saving a file under a different location
---
 io/passwordfile.cpp | 10 +++++++++-
 io/passwordfile.h   |  3 ++-
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/io/passwordfile.cpp b/io/passwordfile.cpp
index 22d8b0c..5beb316 100644
--- a/io/passwordfile.cpp
+++ b/io/passwordfile.cpp
@@ -405,7 +405,15 @@ void PasswordFile::save(PasswordFileSaveFlags options)
         if (m_file.is_open()) {
             m_file.close();
         }
-        m_file.open(m_path, ios_base::in | ios_base::out | ios_base::trunc | ios_base::binary);
+        try {
+            m_file.open(m_path, ios_base::in | ios_base::out | ios_base::trunc | ios_base::binary);
+        } catch (const ios_base::failure &) {
+            // try to create a new file if configured via \a options
+            if (!(options & PasswordFileSaveFlags::AllowToCreateNewFile)) {
+                throw;
+            }
+            m_file.open(m_path, ios_base::out | ios_base::trunc | ios_base::binary);
+        }
     }
 
     write(options);
diff --git a/io/passwordfile.h b/io/passwordfile.h
index 179be56..e10041f 100644
--- a/io/passwordfile.h
+++ b/io/passwordfile.h
@@ -48,7 +48,8 @@ enum class PasswordFileSaveFlags : std::uint64_t {
     Encryption = 1,
     Compression = 2,
     PasswordHashing = 4,
-    Default = Encryption | Compression | PasswordHashing,
+    AllowToCreateNewFile = 8,
+    Default = Encryption | Compression | PasswordHashing | AllowToCreateNewFile,
 };
 
 std::string PASSWORD_FILE_EXPORT flagsToString(PasswordFileSaveFlags flags);