public bool Persist(IFileSystem fileSystem, string filepath)
{
using (AutoPause())
{
if (File != null)
{
// We already are persisted!
throw new InvalidOperationException("This machine is already persisted!");
}
if (String.IsNullOrEmpty(filepath))
{
throw new ArgumentException("Invalid filepath.", nameof(filepath));
}
ITextFile textFile = fileSystem.OpenTextFile(filepath);
MachineFile machineFile = new MachineFile(textFile, _history);
machineFile.WriteHistory(_name);
File = machineFile;
PersistantFilepath = filepath;
return(true);
}
}
/// <summary>
/// Rewrites the machine file according to the current in-memory representation of the timeline.
/// </summary>
/// <param name="diffsEnabled">Enable calculation of diffs. Setting this to true can cause compacting to take a long time.</param>
/// <remarks>
/// This is useful for compacting the size of the machine file, due to the fact that bookmark and timeline deletions don't actually
/// remove anything from the machine file, but simply log the fact they happened.
/// </remarks>
///
public void Compact(IFileSystem fileSystem)
{
// Only allow closed machines to compact!
if (!CanCompact())
{
throw new Exception("Can't compact an open machine!");
}
string oldFilepath = PersistantFilepath;
string newFilepath = oldFilepath + ".tmp";
MachineFileInfo info = null;
using (ITextFile textFile = fileSystem.OpenTextFile(oldFilepath))
{
info = MachineFile.Read(textFile);
}
using (ITextFile textFile = fileSystem.OpenTextFile(newFilepath))
using (MachineFile writer = new MachineFile(textFile, info.History))
{
writer.WriteHistory(info.Name);
}
fileSystem.ReplaceFile(oldFilepath, newFilepath);
}
