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passwordfile
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check whether the current file is empty before creating backup

This commit is contained in:
Martchus 2016-02-27 23:21:44 +01:00
parent 3128d31536
commit 76b5abb5ba
1 changed files with 10 additions and 5 deletions
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15
io/passwordfile.cpp
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@ -420,11 +420,16 @@ void PasswordFile::doBackup()
if(!isOpen()) {
open();
}
fstream backupFile(m_path + ".backup", ios::out | ios::binary);
backupFile.exceptions(ios_base::failbit | ios_base::badbit);
m_file.seekg(0);
backupFile << m_file.rdbuf();
backupFile.close();
m_file.seekg(0, ios_base::end);
if(m_file.tellg()) {
m_file.seekg(0);
fstream backupFile(m_path + ".backup", ios::out | ios::trunc | ios::binary);
backupFile.exceptions(ios_base::failbit | ios_base::badbit);
backupFile << m_file.rdbuf();
backupFile.close();
} else {
// the current file is empty anyways
}
}
/*!