* mail/emacsbug.el (report-emacs-bug-tracker-url)

(report-emacs-bug-create-existing-bugs-buffer)
(report-emacs-bug-parse-query-results)
(report-emacs-bug-query-existing-bugs): Implemented a bug querying
mechanism.

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index be4a885a6662a407b9fcbf7b838a537f6f6921ef..43c09bcc5b23279a3d6595876ba4b37559f99e74 100644 (file)
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,11 @@
+2010-11-20  Tassilo Horn  <tassilo@member.fsf.org>
+
+       * mail/emacsbug.el (report-emacs-bug-tracker-url)
+       (report-emacs-bug-create-existing-bugs-buffer)
+       (report-emacs-bug-parse-query-results)
+       (report-emacs-bug-query-existing-bugs): Implemented a bug querying
+       mechanism.
+
 2010-11-19  Tassilo Horn  <tassilo@member.fsf.org>
 
        * textmodes/reftex-ref.el (reftex-goto-label): If point is inside

diff --git a/lisp/mail/emacsbug.el b/lisp/mail/emacsbug.el
index d84e60fb60473687ee5c5df8a6aaaffb2345fb2f..73e26a3a53d13a7ca1b9a375733b764438097788 100644 (file)
--- a/lisp/mail/emacsbug.el
+++ b/lisp/mail/emacsbug.el
@@ -58,6 +58,9 @@
 
 ;; User options end here.
 
+(defvar report-emacs-bug-tracker-url "http://debbugs.gnu.org/cgi/"
+  "Base URL of the GNU bugtracker.
+Used for querying duplicates and linking to existing bugs.")
 
 (defvar report-emacs-bug-orig-text nil
   "The automatically-created initial text of the bug report.")
@@ -120,7 +123,6 @@
                         (concat "mailto:" to))
        (error "Subject, To or body not found")))))
 
-
 ;;;###autoload
 (defun report-emacs-bug (topic &optional recent-keys)
   "Report a bug in GNU Emacs.
@@ -375,6 +377,85 @@ and send the mail again%s."
                                           'field 'emacsbug-prompt))
         (delete-region pos (field-end (1+ pos)))))))
 
+
+;; Querying the bug database
+
+(defun report-emacs-bug-create-existing-bugs-buffer (bugs)
+  (switch-to-buffer (get-buffer-create "*Existing Emacs Bugs*"))
+  (setq buffer-read-only t)
+  (let ((inhibit-read-only t))
+    (erase-buffer)
+    (make-local-variable 'bug-alist)
+    (setq bug-alist bugs)
+    (make-local-variable 'bug-choice-widget)
+    (widget-insert (propertize "Already known bugs:\n\n" 'face 'bold))
+    (if bugs
+       (setq bug-choice-widget
+             (apply 'widget-create 'radio-button-choice
+                    :value (car (first bugs))
+                    (let (items)
+                      (dolist (bug bugs)
+                        (push (list
+                               'url-link
+                               :format (concat "Bug#" (number-to-string (third bug))
+                                               ": " (second bug) "\n    %[%v%]\n")
+                               ;; FIXME: Why is only the link of the
+                               ;; active item clickable?
+                               (first bug))
+                              items))
+                      (nreverse items))))
+      (widget-insert "No bugs maching your keywords found.\n"))
+    (widget-insert "\n")
+    (widget-create 'push-button
+                  :notify (lambda (&rest ignore)
+                            ;; TODO: Do something!
+                            (message "Reporting new bug!"))
+                  "Report new bug")
+    (when bugs
+      (widget-insert " ")
+      (widget-create 'push-button
+                    :notify (lambda (&rest ignore)
+                              (let ((val (widget-value bug-choice-widget)))
+                                ;; TODO: Do something!
+                                (message "Appending to bug %s!"
+                                         (third (assoc val bug-alist)))))
+                    "Append to chosen bug"))
+    (widget-insert " ")
+    (widget-create 'push-button
+                  :notify (lambda (&rest ignore)
+                            (kill-buffer))
+                  "Quit reporting bug")
+    (widget-insert "\n"))
+  (use-local-map widget-keymap)
+  (widget-setup)
+  (goto-char (point-min)))
+
+(defun report-emacs-bug-parse-query-results (status)
+  (goto-char (point-min))
+  (let (buglist)
+    (while (re-search-forward "<a href=\"bugreport\\.cgi\\?bug=\\([[:digit:]]+\\)\">\\([^<]+\\)</a>" nil t)
+      (let ((number (match-string 1))
+           (subject (match-string 2)))
+       (when (not (string-match "^#" subject))
+         (push (list
+                ;; first the bug URL
+                (concat report-emacs-bug-tracker-url
+                        "bugreport.cgi?bug=" number)
+                ;; then the subject and number
+                subject (string-to-number number))
+               buglist))))
+    (report-emacs-bug-create-existing-bugs-buffer (nreverse buglist))))
+
+(defun report-emacs-bug-query-existing-bugs (keywords)
+  "Query for KEYWORDS at `report-emacs-bug-tracker-url', and return the result.
+The result is an alist with items of the form (URL SUBJECT NO)."
+  (interactive "sBug keywords: ")
+  (url-retrieve (concat report-emacs-bug-tracker-url
+                       "pkgreport.cgi?include=subject%3A"
+                       (replace-regexp-in-string "[[:space:]]+" "+" keywords)
+                       ";package=emacs")
+               'report-emacs-bug-parse-query-results))
+
 (provide 'emacsbug)
 
 ;;; emacsbug.el ends here