[PATCH] emacs: new notmuch-tree-process-exit-functions

Subject: [PATCH] emacs: new notmuch-tree-process-exit-functions

Date: Sun, 21 Aug 2022 04:06:18 +0100

To: notmuch@notmuchmail.org

Cc: jao

From: jao

Hook run when the tree insertion process finishes its job.

This patch supersedes <id:20220816214023.1523322-1-jao@gnu.org>, but
changing the new variable name.

Right now, it can be used for silly things like removing or changing
the the "End of search." hardcoded message in the tree buffer.  But
also for more sophisticated things like folding all threads in add-ons
like my outline mode for tree buffers (to be submitted).

Signed-off-by: jao <jao@gnu.org>
 emacs/notmuch-tree.el | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/emacs/notmuch-tree.el b/emacs/notmuch-tree.el
index f63ac9a5..7ceddee2 100644
--- a/emacs/notmuch-tree.el
+++ b/emacs/notmuch-tree.el
@@ -1084,6 +1084,12 @@ Complete list of currently available key bindings:
   (setq buffer-read-only t)
   (setq truncate-lines t))
+(defvar notmuch-tree-process-exit-functions nil
+  "Functions called when the process inserting a tree of results finishes.
+Functions in this list are called with one argument, the process
+object, and with the tree results buffer as the current buffer.")
 (defun notmuch-tree-process-sentinel (proc _msg)
   "Add a message to let user know when \"notmuch tree\" exits."
   (let ((buffer (process-buffer proc))
@@ -1102,7 +1108,8 @@ Complete list of currently available key bindings:
 		(insert "End of search results.")
 		(unless (= exit-status 0)
 		  (insert (format " (process returned %d)" exit-status)))
-		(insert "\n")))))))))
+		(insert "\n"))))
+	  (run-hook-with-args 'notmuch-tree-process-exit-functions proc))))))
 (defun notmuch-tree-process-filter (proc string)
   "Process and filter the output of \"notmuch show\" for tree view."

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