hgweb: assign ctype to requestcontext The very existence of ctype is a bit hacky. But we roll with it. Before this patch, there was possibly a race condition between 2 threads handling file requests: 1 thread could set the ctype and another serving a different file would read and use that potentially wrong ctype.

hgweb: add reponame to requestcontext We have to use object.__setattr__ until the app proxy is gone.

hgweb: don't access self.repo during request processing We want all repository accesses to go through requestcontext.repo so the request is isolated from the application.

hgweb: extract _getview to own function While we're refactoring code, we might as well remove a method that doesn't need to be a method.