[PATCH 4/4] WIP/emacs: replace message with different duplicate

Subject: [PATCH 4/4] WIP/emacs: replace message with different duplicate

Date: Sun, 12 Jun 2022 16:04:59 -0300

To: notmuch@notmuchmail.org

Cc:

From: David Bremner

---
 emacs/notmuch-query.el  |  4 +++-
 emacs/notmuch-show.el   | 11 +++++++++++
 test/T450-emacs-show.sh | 12 ++++++++++++
 3 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/emacs/notmuch-query.el b/emacs/notmuch-query.el
index 5c7f4f8d..865e3ccf 100644
--- a/emacs/notmuch-query.el
+++ b/emacs/notmuch-query.el
@@ -25,7 +25,7 @@
 
 ;;; Basic query function
 
-(defun notmuch-query-get-threads (search-terms)
+(defun notmuch-query-get-threads (search-terms &optional duplicate)
   "Return a list of threads of messages matching SEARCH-TERMS.
 
 A thread is a forest or list of trees. A tree is a two element
@@ -34,6 +34,8 @@ is a possibly empty forest of replies."
   (let ((args '("show" "--format=sexp" "--format-version=5")))
     (when notmuch-show-process-crypto
       (setq args (append args '("--decrypt=true"))))
+    (when duplicate
+      (setq args (append args (list (format "--duplicate=%d" duplicate)))))
     (setq args (append args search-terms))
     (apply #'notmuch-call-notmuch-sexp args)))
 
diff --git a/emacs/notmuch-show.el b/emacs/notmuch-show.el
index 203ca7f0..833543b0 100644
--- a/emacs/notmuch-show.el
+++ b/emacs/notmuch-show.el
@@ -1082,6 +1082,17 @@ is t, hide the part initially and show the button."
 (defvar notmuch-show-previous-subject "")
 (make-variable-buffer-local 'notmuch-show-previous-subject)
 
+(defun notmuch-show-replace-msg (duplicate)
+  (interactive "Nduplicate: ")
+  (save-excursion
+    (let* ((extent (notmuch-show-message-extent))
+	   (id (notmuch-show-get-message-id))
+	   (depth (notmuch-show-get-depth))
+	   (inhibit-read-only t)
+	   (new-msg (notmuch-query-get-threads (list id) duplicate)))
+      (delete-region (car extent) (cdr extent))
+      (notmuch-show-insert-msg new-msg depth))))
+
 (defun notmuch-show-insert-msg (msg depth)
   "Insert the message MSG at depth DEPTH in the current thread."
   (let* ((headers (plist-get msg :headers))
diff --git a/test/T450-emacs-show.sh b/test/T450-emacs-show.sh
index 678efd8b..6141873d 100755
--- a/test/T450-emacs-show.sh
+++ b/test/T450-emacs-show.sh
@@ -271,4 +271,16 @@ when we detect the word "attachment" and there's no attach? :p
 EOF
 test_expect_equal_file EXPECTED OUTPUT
 
+add_email_corpus duplicate
+
+ID3=87r2ecrr6x.fsf@zephyr.silentflame.com
+test_begin_subtest "duplicate=3"
+test_emacs "(notmuch-show \"id:${ID3}\")
+	   (notmuch-show-replace-msg 3)
+	   (test-visible-output \"OUTPUT\")"
+output=$(grep "Subject:" OUTPUT)
+file=$(notmuch search --output=files id:${ID3} | head -n 3 | tail -n 1)
+subject=$(grep '^Subject:' $file)
+test_expect_equal "$output" "$subject"
+
 test_done
-- 
2.35.2

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