[MonoDevelop] VersionControl Questions

[Lluis Sanchez Gual]

El dg 14 de 09 de 2008 a les 01:48 +0200, en/na Paul Lange va escriure:
> Hello,
> 
> I'm working on a Bazaar extension to the VersionControl plugin.
> 
> Basic file status indication works (more or less) but I have some
> questionsregarding VC development:
> 
>     * How is the addin notices of a changes file. I found the method
> NotifyFileChanged(string path) in the Repository class. Anyhow I'm not
> sure if this method is called if a file has been changed in MonoDevelop.

Yes, that method is called when a file has been changed inside MD.

> 
>     * The method GetPathToBaseText (string localFile) returns a path to
> the last version of the file updated from the repository. This is
> possible with subversion where such a file is stored. Accessing this
> file is not easy/possible with bazaar. For what is this method needed?

This method is used to get the differences between the working file and
the file in the repository (the Diff command).

> 
>     * The comments of the method void Update (string localPath, bool
> recurse, IProgressMonitor monitor); say that it returns a list of
> updated files. If so, how is this done.

The comment is incorrect. The plugin should call
FileService.NotifyFileChanged when a file changes.

> 
>     * If I open a bzr-controlled project with monodevelop and open the
> solutionpad-context-menu the first time I get a bunch of errors like
> this. How can I avoid that?
> 
>     System.Reflection.TargetInvocationException: Exception has been
>     thrown by the target of an invocation. --->
>     System.NullReferenceException: Object reference not set to an
>     instance of an object
>       at MonoDevelop.VersionControl.AddinCommandHandler.RunCommand
>     (Commands cmd, Boolean test) [0x00000]
>       at MonoDevelop.VersionControl.AddinCommandHandler.TestCommand
>     (Commands cmd, MonoDevelop.Components.Commands.CommandInfo item)
>     [0x00000]
>       at MonoDevelop.VersionControl.AddinCommandHandler.UpdatePublish
>     (MonoDevelop.Components.Commands.CommandInfo item) [0x00000]
>       at (wrapper managed-to-native)
>     System.Reflection.MonoMethod:InternalInvoke (object,object[])
>       at System.Reflection.MonoMethod.Invoke (System.Object obj,
>     BindingFlags invokeAttr, System.Reflection.Binder binder,
>     System.Object[] parameters, System.Globalization.CultureInfo
>     culture) [0x00000] --- End of inner exception stack trace ---
> 
>       at System.Reflection.MonoMethod.Invoke (System.Object obj,
>     BindingFlags invokeAttr, System.Reflection.Binder binder,
>     System.Object[] parameters, System.Globalization.CultureInfo
>     culture) [0x00000]
>       at System.Reflection.MethodBase.Invoke (System.Object obj,
>     System.Object[] parameters) [0x00000]
>       at MonoDevelop.Components.Commands.CommandUpdaterInfo.Run
>     (System.Object cmdTarget,
>     MonoDevelop.Components.Commands.CommandInfo info) [0x00000]
>       at MonoDevelop.Components.Commands.CommandManager.GetCommandInfo
>     (System.Object commandId, System.Object initialTarget) [0x00000]

Hard to tell what's wrong without line numbers. Try running MD with the
--debug option and post the complete stack trace.

Thanks,
Lluis.