/// <summary>Extract an existing tag to a file</summary>
/// <param name="tag_datum">index of tag to extract</param>
/// <param name="base_directory">Root directory to extract the tag to</param>
/// <param name="name_override">Optional, if not null, this is the name of the file we store the tag in</param>
/// <returns>false if it can't save the tag</returns>
public bool Extract(Blam.DatumIndex tag_datum, string base_directory, string name_override)
{
Blam.DatumIndex handle = Open(tag_datum);
if (handle != Blam.DatumIndex.Null)
{
TagManager tm = Array[handle];
try {
tm.OpenForExtract(base_directory, name_override);
tm.Extract();
}
catch (Exception ex) { extractionTrace.WriteLine("Couldn't extract tag: '{0}'{1}{2}", tm.Name, Program.NewLine, ex); return(false); }
}
else
{
return(false);
}
return(true);
}
bool Extract(Blam.CacheExtractionInfo cei, Blam.DatumIndex tag_datum, bool remove_from_state)
{
if (remove_from_state)
{
// don't process it if it's already been done
if (cacheFile.ExtractionState.Processed(tag_datum))
{
return(true);
}
cacheFile.ExtractionState.Dequeue(tag_datum);
}
cacheFile.ExtractionState.CurrentTag = tag_datum;
Blam.CacheIndex.Item ci = cacheFile.Index.Tags[tag_datum.Index];
bool error = false;
Blam.DatumIndex handle = Open(tag_datum);
if (handle != Blam.DatumIndex.Null)
{
// we're about to extract, update our depth level
cei.ExtractionDepth++;
TagManager tm = Array[handle];
#region read the tag from the cache
try { tm.OpenForExtract(cei.Arguments.OutputDirectory, null); }
catch (Exception ex) { extractionTrace.WriteLine("Failed to read tag, aborting extraction...'{0}.{1}'{2}{3}", tm.Name, tm.GroupTag.Name, Program.NewLine, ex); error = true; }
#endregion
#region if no errors
if (!error)
{
try { tm.Extract(); }
catch (Exception ex) { extractionTrace.WriteLine("Failed to write tag, aborting extraction...'{0}.{1}'{2}{3}", tm.Name, tm.GroupTag.Name, Program.NewLine, ex); error = true; }
tm.Close();
}
// something bad happened, so make sure we don't keep any bad tags
if (error)
{
System.IO.File.Delete(Path.Combine(cei.Arguments.OutputDirectory, tm.Name));
}
// process dependents if we want to
if (!error && cei.Arguments.WithDependents)
{
error = !ExtractWithDependents(cei, tm);
}
#endregion
// we're done with the extraction process, update depth level
cei.ExtractionDepth--;
// create and write database
if (cei.Arguments.OutputDatabase && cei.ExtractionDepth == 0)
{
ExtractWriteTagDatabases(cei, tm);
}
Unload(handle);
}
else
{
error = true;
}
return(!error);
}
