[PATCH 1/4] emacs: Implement notmuch-search-refine

[zaephon@gmail.com]

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From 6f73e9aa2031de33eb48a05807295fdb7c3bb566 Mon Sep 17 00:00:00 2001
From: Leo Vivier <zaephon@gmail.com>
Date: Wed, 6 Feb 2019 16:44:59 +0100
Subject: [PATCH 1/4] emacs: Implement notmuch-search-refine
MIME-Version: 1.0
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Refine the current query string.
---
Filtering was already implemented with notmuch-search-filter, but
there wasn’t any way to refine the current query.
---
 emacs/notmuch.el | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/emacs/notmuch.el b/emacs/notmuch.el
index 804e78ab..8bbed17d 100644
--- a/emacs/notmuch.el
+++ b/emacs/notmuch.el
@@ -1070,6 +1070,27 @@ current search results AND the additional query string provided."
 		      (concat grouped-original-query " and " grouped-query))
 		    notmuch-search-oldest-first)))
 
+(defvar notmuch-search-refine-replace-buffer nil
+  "Should ‘not-much-refine’ replace the current search?")
+
+(defun notmuch-search-refine (query &optional replace)
+  "Refine the current query string.
+
+When REPLACE is non-nil, do not create another buffer.  See also
+‘notmuch-search-refine-replace-buffer’."
+  (interactive (list (minibuffer-with-setup-hook
+                         (lambda ()
+                           (next-history-element 1)
+                           (end-of-line)
+                           (insert " "))
+                       (notmuch-read-query "Refine search: "))))
+  (let ((grouped-query (notmuch-group-disjunctive-query-string
+                        query)))
+    (when (or replace
+	      notmuch-search-refine-replace-buffer)
+      (notmuch-bury-or-kill-this-buffer))
+    (notmuch-search grouped-query notmuch-search-oldest-first)))
+
 (defun notmuch-search-filter-by-tag (tag)
   "Filter the current search results based on a single tag.
 
-- 
2.20.1