[PATCH 0/5] *** Resubmit: Warping via the registry ***

[Dave Abrahams <dave@boostpro.com>]

Note: I submitted this patch series back in October
(http://permalink.gmane.org/gmane.emacs.gnus.general/80250).  It still
applies perfectly, but I rebased just in case.  I'd really appreciate
it if this series could get some attention.  Further explanation of
the motivation for this series is in
http://article.gmane.org/gmane.emacs.gnus.general/80277. Thanks!


This patch series implements the ability to warp to a message via
information stored in the Gnus registry.  From a user's point-of-view,
this means that articles brought in from other groups by
gnus-*-refer-* can be used as a jumping-off-point for further
references.  For example, I am using this code to jump to a given
message:

(defun gnus-goto-article (message-id)
  (with-temp-buffer
    (erase-buffer)
    ;; Insert dummy article
    (insert (format "From nobody Tue Sep 13 22:05:34 2011\n\n"))
    (gnus-group-read-ephemeral-group
     message-id
     `(nndoc ,message-id
             (nndoc-address ,(current-buffer))
             (nndoc-article-type mbox))
     :activate
     (cons (current-buffer) gnus-current-window-configuration)
     (not :request-only)
     '(-1) ; :select-articles
     (not :parameters)
     0     ; :number
     )
    (gnus-summary-refer-article message-id)
    ))

Before applying this patch series, I could not get to the whole thread
with `A T' because Gnus was unable to warp to the article in its
original group.

How it works
------------

Each time a message is fetched from a backend, its group is noted in
the registry.  Warping now consults the backend of the current group,
and if that fails, tries warping to the article in each group stored
for it in the registry until one succeeds.

Dave Abrahams (5):
  Allow gnus-summary-insert-subject to work in empty groups.
  Record information in the registry about each article retrieved
  Add `gnus-select-group-with-message-id'
  Add `gnus-try-warping-via-registry()'
  Enable registry-warping as a fallback if warping via the current
    backend fails.

 lisp/gnus-int.el |  101 ++++++++++++++++++++++++++++++++++++++++++++++++++++--
 lisp/gnus-sum.el |   11 +++++-
 2 files changed, 107 insertions(+), 5 deletions(-)

-- 
1.7.5.4