How does the revision graph work?
The revision graph is a little bit special, it’s not like the other features found in TortoiseSVN. It shows a graph of a file or folder through the history with all the revision where the file or folder was copied, moved, branched or tagged. We often get people asking questions why it needs to get the log for the repository root, or why it needs to get the full log from the HEAD revision back down to the first revision. Just to make this clear: this is not because we’re lazy programmers or because we’re too stupid to optimize it, even though some of you seem to imply that. It is really necessary. The revision graph shows the history of a selected file or folder by finding all revisions where the selected item was copied. And the graph has to do that by using the information that is available. If you look at the log messages for your selected file or folder, you can see in the lower pane of the log dialog all affected paths of the selected revision. That information is what we use for t
