From 69b14ac458e923dcbe9cf740ab868633c055b405 Mon Sep 17 00:00:00 2001
From: Dave Abrahams <dave@boostpro.com>
Date: Fri, 31 Jan 2014 15:59:06 -0800
Subject: [PATCH] * gnus-sum.el (gnus-summary-open-group-with-article): New
 command.

---
 lisp/ChangeLog   |  4 ++++
 lisp/gnus-sum.el | 35 +++++++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+)

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 0a6a95be1..d5532051a 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,7 @@
+2014-01-31  Dave Abrahams  <dave@boostpro.com>
+
+	* gnus-sum.el (gnus-summary-open-group-with-article): New command.
+
 2014-01-31  Magnus Henoch  <magnus.henoch@gmail.com>
 
 	* dns.el (dns-servers-up-to-date-p): New function to see whether the
diff --git a/lisp/gnus-sum.el b/lisp/gnus-sum.el
index d6c801fdd..9079e25d7 100644
--- a/lisp/gnus-sum.el
+++ b/lisp/gnus-sum.el
@@ -9085,6 +9085,41 @@ non-numeric or nil fetch the number specified by the
       (gnus-summary-limit-include-thread id)))
   (gnus-summary-show-thread))
 
+(defun gnus-summary-open-group-with-article (message-id)
+  "Open a group containing the article with the given MESSAGE-ID."
+  (interactive "sMessage-ID: ")
+  (require 'nndoc)
+  (with-temp-buffer
+    ;; Prepare a dummy article
+    (erase-buffer)
+    (insert "From nobody Tue Sep 13 22:05:34 2011\n\n")
+
+    ;; Prepare pretty modelines for summary and article buffers
+    (let ((gnus-summary-mode-line-format "Found %G")
+          (gnus-article-mode-line-format
+           ;; Group names just get in the way here, especially the
+           ;; abbreviated ones
+           (if (string-match "%[gG]" gnus-article-mode-line-format)
+	       (concat (substring gnus-article-mode-line-format
+				  0 (match-beginning 0))
+		       (substring gnus-article-mode-line-format (match-end 0)))
+	     gnus-article-mode-line-format)))
+
+      ;; Build an ephemeral group containing the dummy article (hidden)
+      (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
+    ;; Fetch the desired article
+    (gnus-summary-refer-article message-id)))
+
 (defun gnus-summary-refer-article (message-id)
   "Fetch an article specified by MESSAGE-ID."
   (interactive "sMessage-ID: ")
-- 
2.34.1