public static string BackupFile(string file)
{
bool flag = false;
string backupFile = VmcStudioUtil.GetBackupFile(file);
if (!File.Exists(backupFile))
{
Trace.TraceInformation("No backup of {0} exists, creating {1}.", (object)file, (object)backupFile);
flag = true;
}
else
{
string fileVersion1 = VmcStudioUtil.GetFileVersion(backupFile);
string fileVersion2 = VmcStudioUtil.GetFileVersion(file);
if (fileVersion1 != fileVersion2)
{
Trace.TraceInformation("Version of {0} has changed ({1} to {2}), refreshing backup file {3}.", (object)file, (object)fileVersion1, (object)fileVersion2, (object)backupFile);
VmcStudioUtil.TakeOwnership(backupFile);
flag = true;
}
}
if (flag)
{
Directory.CreateDirectory(Path.GetDirectoryName(backupFile));
File.Copy(file, backupFile, true);
}
return(backupFile);
}
public static bool PrepareForSave(MediaCenterLibraryCache cache)
{
bool flag = true;
foreach (string path2 in cache.LoadedFiles)
{
string str = Path.Combine(cache.SearchPath, path2);
if (File.Exists(str))
{
VmcStudioUtil.BackupFile(str);
if (!VmcStudioUtil.TakeOwnership(str))
{
throw new VmcStudioException(string.Format("Could not take ownership of {0}.", (object)str));
}
}
else
{
Trace.TraceWarning("File not found: {0}", new object[1]
{
(object)str
});
}
}
if (!VmcStudioUtil.EnsureMediaCenterClosed(true))
{
flag = false;
}
return(flag);
}
