[PATCH v2 23/23] emacs: various cosmetic improvements

Subject: [PATCH v2 23/23] emacs: various cosmetic improvements

Date: Mon, 16 Nov 2020 22:28:43 +0100

To: notmuch@notmuchmail.org

Cc:

From: Jonas Bernoulli


---
 emacs/notmuch-address.el | 31 ++++++--------
 emacs/notmuch-hello.el   | 28 +++++--------
 emacs/notmuch-lib.el     | 38 +++++++++--------
 emacs/notmuch-mua.el     | 10 ++---
 emacs/notmuch-tag.el     |  2 +-
 emacs/notmuch.el         | 88 ++++++++++++++++++++--------------------
 6 files changed, 91 insertions(+), 106 deletions(-)

diff --git a/emacs/notmuch-address.el b/emacs/notmuch-address.el
index 71985ed7..a00ca8d7 100644
--- a/emacs/notmuch-address.el
+++ b/emacs/notmuch-address.el
@@ -21,6 +21,8 @@
 
 ;;; Code:
 
+(eval-when-compile (require 'cl-lib))
+
 (require 'message)
 (require 'notmuch-parser)
 (require 'notmuch-lib)
@@ -154,15 +156,12 @@ (defcustom notmuch-address-use-company t
   :group 'notmuch-address)
 
 (defun notmuch-address-setup ()
-  (let* ((setup-company (and notmuch-address-use-company
-			     (require 'company nil t)))
-	 (pair (cons notmuch-address-completion-headers-regexp
-		     #'notmuch-address-expand-name)))
-    (when setup-company
-      (notmuch-company-setup))
-    (unless (member pair message-completion-alist)
-      (setq message-completion-alist
-	    (push pair message-completion-alist)))))
+  (when (and notmuch-address-use-company
+	     (require 'company nil t))
+    (notmuch-company-setup))
+  (cl-pushnew (cons notmuch-address-completion-headers-regexp
+		    #'notmuch-address-expand-name)
+	      message-completion-alist :test #'equal))
 
 (defun notmuch-address-toggle-internal-completion ()
   "Toggle use of internal completion for current buffer.
@@ -251,11 +250,8 @@ (defun notmuch-address-expand-name ()
    (t nil)))
 
 (defun notmuch-address-harvest-addr (result)
-  (let ((name-addr (plist-get result :name-addr)))
-    (puthash name-addr t notmuch-address-completions)))
-
-(defun notmuch-address-harvest-handle-result (obj)
-  (notmuch-address-harvest-addr obj))
+  (puthash (plist-get result :name-addr)
+	   t notmuch-address-completions))
 
 (defun notmuch-address-harvest-filter (proc string)
   (when (buffer-live-p (process-buffer proc))
@@ -264,7 +260,7 @@ (defun notmuch-address-harvest-filter (proc string)
 	(goto-char (point-max))
 	(insert string))
       (notmuch-sexp-parse-partial-list
-       'notmuch-address-harvest-handle-result (process-buffer proc)))))
+       'notmuch-address-harvest-addr (process-buffer proc)))))
 
 (defvar notmuch-address-harvest-procs '(nil . nil)
   "The currently running harvests.
@@ -375,7 +371,7 @@ (defun notmuch-address--load-address-hash ()
 (defun notmuch-address--save-address-hash ()
   (when notmuch-address-save-filename
     (if (or (not (file-exists-p notmuch-address-save-filename))
-	    ;; The file exists, check it is a file we saved
+	    ;; The file exists, check it is a file we saved.
 	    (notmuch-address--get-address-hash))
 	(with-temp-file notmuch-address-save-filename
 	  (let ((save-plist
@@ -398,8 +394,7 @@ (defun notmuch-address-harvest-trigger ()
        nil nil
        (lambda (proc event)
 	 ;; If harvest fails, we want to try
-	 ;; again when the trigger is next
-	 ;; called
+	 ;; again when the trigger is next called.
 	 (if (string= event "finished\n")
 	     (progn
 	       (notmuch-address--save-address-hash)
diff --git a/emacs/notmuch-hello.el b/emacs/notmuch-hello.el
index fa31694f..80af7544 100644
--- a/emacs/notmuch-hello.el
+++ b/emacs/notmuch-hello.el
@@ -402,8 +402,7 @@ (defun notmuch-hello-add-saved-search (widget)
     ;; If an existing saved search with this name exists, remove it.
     (setq notmuch-saved-searches
 	  (cl-loop for elem in notmuch-saved-searches
-		   if (not (equal name
-				  (notmuch-saved-search-get elem :name)))
+		   unless (equal name (notmuch-saved-search-get elem :name))
 		   collect elem))
     ;; Add the new one.
     (customize-save-variable 'notmuch-saved-searches
@@ -446,18 +445,14 @@ (defun notmuch-hello-reflect (list ncols)
 	     append (notmuch-hello-reflect-generate-row ncols nrows row list))))
 
 (defun notmuch-hello-widget-search (widget &rest ignore)
-  (cond
-   ((eq (widget-get widget :notmuch-search-type) 'tree)
-    (notmuch-tree (widget-get widget
-			      :notmuch-search-terms)))
-   ((eq (widget-get widget :notmuch-search-type) 'unthreaded)
-    (notmuch-unthreaded (widget-get widget
-				    :notmuch-search-terms)))
+  (cl-case (widget-get widget :notmuch-search-type)
+   (tree
+    (notmuch-tree (widget-get widget :notmuch-search-terms)))
+   (unthreaded
+    (notmuch-unthreaded (widget-get widget :notmuch-search-terms)))
    (t
-    (notmuch-search (widget-get widget
-				:notmuch-search-terms)
-		    (widget-get widget
-				:notmuch-search-oldest-first)))))
+    (notmuch-search (widget-get widget :notmuch-search-terms)
+		    (widget-get widget :notmuch-search-oldest-first)))))
 
 (defun notmuch-saved-search-count (search)
   (car (process-lines notmuch-command "count" search)))
@@ -689,9 +684,7 @@ (define-derived-mode notmuch-hello-mode fundamental-mode "notmuch-hello"
 Complete list of currently available key bindings:
 
 \\{notmuch-hello-mode-map}"
-  (setq notmuch-buffer-refresh-function #'notmuch-hello-update)
-  ;;(setq buffer-read-only t)
-  )
+  (setq notmuch-buffer-refresh-function #'notmuch-hello-update))
 
 (defun notmuch-hello-generate-tag-alist (&optional hide-tags)
   "Return an alist from tags to queries to display in the all-tags section."
@@ -775,8 +768,7 @@ (defun notmuch-hello-insert-search ()
   ;; instead of a space to make `show-trailing-whitespace'
   ;; happy, i.e. avoid it marking the whole line as trailing
   ;; spaces.
-  (widget-insert ".")
-  (put-text-property (1- (point)) (point) 'invisible t)
+  (widget-insert (propertize "." 'invisible t))
   (widget-insert "\n"))
 
 (defun notmuch-hello-insert-recent-searches ()
diff --git a/emacs/notmuch-lib.el b/emacs/notmuch-lib.el
index e23999ad..aa48b949 100644
--- a/emacs/notmuch-lib.el
+++ b/emacs/notmuch-lib.el
@@ -186,8 +186,8 @@ (defun notmuch-command-to-string (&rest args)
 
 Otherwise the output will be returned."
   (with-temp-buffer
-    (let* ((status (apply #'call-process notmuch-command nil t nil args))
-	   (output (buffer-string)))
+    (let ((status (apply #'call-process notmuch-command nil t nil args))
+	  (output (buffer-string)))
       (notmuch-check-exit-status status (cons notmuch-command args) output)
       output)))
 
@@ -239,8 +239,9 @@ (defun notmuch-config-get (item)
   (let* ((val (notmuch-command-to-string "config" "get" item))
 	 (len (length val)))
     ;; Trim off the trailing newline (if the value is empty or not
-    ;; configured, there will be no newline)
-    (if (and (> len 0) (= (aref val (- len 1)) ?\n))
+    ;; configured, there will be no newline).
+    (if (and (> len 0)
+	     (= (aref val (- len 1)) ?\n))
 	(substring val 0 -1)
       val)))
 
@@ -403,9 +404,9 @@ (defun notmuch-help ()
 its prefixed behavior by setting the 'notmuch-prefix-doc property
 of its command symbol."
   (interactive)
-  (let* ((mode major-mode)
-	 (doc (substitute-command-keys
-	       (notmuch-substitute-command-keys (documentation mode t)))))
+  (let ((doc (substitute-command-keys
+	      (notmuch-substitute-command-keys
+	       (documentation major-mode t)))))
     (with-current-buffer (generate-new-buffer "*notmuch-help*")
       (insert doc)
       (goto-char (point-min))
@@ -467,8 +468,8 @@ (defun notmuch-refresh-all-buffers ()
 	  (notmuch-refresh-this-buffer))))))
 
 (defun notmuch-prettify-subject (subject)
-  ;; This function is used by `notmuch-search-process-filter' which
-  ;; requires that we not disrupt its' matching state.
+  ;; This function is used by `notmuch-search-process-filter',
+  ;; which requires that we not disrupt its matching state.
   (save-match-data
     (if (and subject
 	     (string-match "^[ \t]*$" subject))
@@ -525,13 +526,12 @@ (defun notmuch-common-do-stash (text)
 ;;
 
 (defun notmuch-plist-delete (plist property)
-  (let* ((xplist (cons nil plist))
-	 (pred xplist))
-    (while (cdr pred)
-      (when (eq (cadr pred) property)
-	(setcdr pred (cdddr pred)))
-      (setq pred (cddr pred)))
-    (cdr xplist)))
+  (let (p)
+    (while plist
+      (unless (eq property (car plist))
+	(setq p (plist-put p (car plist) (cadr plist))))
+      (setq plist (cddr plist)))
+    p))
 
 (defun notmuch-match-content-type (t1 t2)
   "Return t if t1 and t2 are matching content types, taking wildcards into account."
@@ -540,8 +540,10 @@ (defun notmuch-match-content-type (t1 t2)
     (if (or (string= (cadr st1) "*")
 	    (string= (cadr st2) "*"))
 	;; Comparison of content types should be case insensitive.
-	(string= (downcase (car st1)) (downcase (car st2)))
-      (string= (downcase t1) (downcase t2)))))
+	(string= (downcase (car st1))
+		 (downcase (car st2)))
+      (string= (downcase t1)
+	       (downcase t2)))))
 
 (defvar notmuch-multipart/alternative-discouraged
   '(;; Avoid HTML parts.
diff --git a/emacs/notmuch-mua.el b/emacs/notmuch-mua.el
index c38cb5aa..01c1d520 100644
--- a/emacs/notmuch-mua.el
+++ b/emacs/notmuch-mua.el
@@ -348,12 +348,10 @@ (defun notmuch-mua-pop-to-buffer (name switch-function)
 		(select-window window))
 	    (funcall switch-function buffer)
 	    (set-buffer buffer))
-	  (when (and (buffer-modified-p)
-		     (not (prog1
-			      (y-or-n-p
-			       "Message already being composed; erase? ")
-			    (message nil))))
-	    (error "Message being composed")))
+	  (when (buffer-modified-p)
+	    (if (y-or-n-p "Message already being composed; erase? ")
+		(message nil)
+	      (error "Message being composed"))))
       (funcall switch-function name)
       (set-buffer name))
     (erase-buffer)
diff --git a/emacs/notmuch-tag.el b/emacs/notmuch-tag.el
index 925de78c..75e864a4 100644
--- a/emacs/notmuch-tag.el
+++ b/emacs/notmuch-tag.el
@@ -472,7 +472,7 @@ (defun notmuch-tag (query tag-changes)
 	tag-changes)
   (unless query
     (error "Nothing to tag!"))
-  (unless (null tag-changes)
+  (when tag-changes
     (run-hooks 'notmuch-before-tag-hook)
     (if (<= (length query) notmuch-tag-argument-limit)
 	(apply 'notmuch-call-notmuch-process "tag"
diff --git a/emacs/notmuch.el b/emacs/notmuch.el
index b221be05..80aa8566 100644
--- a/emacs/notmuch.el
+++ b/emacs/notmuch.el
@@ -169,7 +169,7 @@ (defvar notmuch-search-mode-map
   (let ((map (make-sparse-keymap)))
     (set-keymap-parent map notmuch-common-keymap)
     (define-key map "x" 'notmuch-bury-or-kill-this-buffer)
-    (define-key map (kbd "<DEL>") 'notmuch-search-scroll-down)
+    (define-key map (kbd "DEL") 'notmuch-search-scroll-down)
     (define-key map "b" 'notmuch-search-scroll-down)
     (define-key map " " 'notmuch-search-scroll-up)
     (define-key map "<" 'notmuch-search-first-thread)
@@ -923,40 +923,39 @@ (defun notmuch-read-query (prompt)
   "Read a notmuch-query from the minibuffer with completion.
 
 PROMPT is the string to prompt with."
-  (let*
-      ((all-tags
-	(mapcar (lambda (tag) (notmuch-escape-boolean-term tag))
-		(process-lines notmuch-command "search" "--output=tags" "*")))
-       (completions
-	(append (list "folder:" "path:" "thread:" "id:" "date:" "from:" "to:"
-		      "subject:" "attachment:")
-		(mapcar (lambda (tag) (concat "tag:" tag)) all-tags)
-		(mapcar (lambda (tag) (concat "is:" tag)) all-tags)
-		(mapcar (lambda (mimetype) (concat "mimetype:" mimetype))
-			(mailcap-mime-types)))))
-    (let ((keymap (copy-keymap minibuffer-local-map))
-	  (current-query (cl-case major-mode
-			   (notmuch-search-mode (notmuch-search-get-query))
-			   (notmuch-show-mode (notmuch-show-get-query))
-			   (notmuch-tree-mode (notmuch-tree-get-query))))
-	  (minibuffer-completion-table
-	   (completion-table-dynamic
-	    (lambda (string)
-	      ;; generate a list of possible completions for the current input
-	      (cond
-	       ;; this ugly regexp is used to get the last word of the input
-	       ;; possibly preceded by a '('
-	       ((string-match "\\(^\\|.* (?\\)\\([^ ]*\\)$" string)
-		(mapcar (lambda (compl)
-			  (concat (match-string-no-properties 1 string) compl))
-			(all-completions (match-string-no-properties 2 string)
-					 completions)))
-	       (t (list string)))))))
-      ;; this was simpler than convincing completing-read to accept spaces:
-      (define-key keymap (kbd "TAB") 'minibuffer-complete)
-      (let ((history-delete-duplicates t))
-	(read-from-minibuffer prompt nil keymap nil
-			      'notmuch-search-history current-query nil)))))
+  (let* ((all-tags
+	  (mapcar (lambda (tag) (notmuch-escape-boolean-term tag))
+		  (process-lines notmuch-command "search" "--output=tags" "*")))
+	 (completions
+	  (append (list "folder:" "path:" "thread:" "id:" "date:" "from:" "to:"
+			"subject:" "attachment:")
+		  (mapcar (lambda (tag) (concat "tag:" tag)) all-tags)
+		  (mapcar (lambda (tag) (concat "is:" tag)) all-tags)
+		  (mapcar (lambda (mimetype) (concat "mimetype:" mimetype))
+			  (mailcap-mime-types))))
+	 (keymap (copy-keymap minibuffer-local-map))
+	 (current-query (cl-case major-mode
+			  (notmuch-search-mode (notmuch-search-get-query))
+			  (notmuch-show-mode (notmuch-show-get-query))
+			  (notmuch-tree-mode (notmuch-tree-get-query))))
+	 (minibuffer-completion-table
+	  (completion-table-dynamic
+	   (lambda (string)
+	     ;; Generate a list of possible completions for the current input.
+	     (cond
+	      ;; This ugly regexp is used to get the last word of the input
+	      ;; possibly preceded by a '('.
+	      ((string-match "\\(^\\|.* (?\\)\\([^ ]*\\)$" string)
+	       (mapcar (lambda (compl)
+			 (concat (match-string-no-properties 1 string) compl))
+		       (all-completions (match-string-no-properties 2 string)
+					completions)))
+	      (t (list string)))))))
+    ;; This was simpler than convincing completing-read to accept spaces:
+    (define-key keymap (kbd "TAB") 'minibuffer-complete)
+    (let ((history-delete-duplicates t))
+      (read-from-minibuffer prompt nil keymap nil
+			    'notmuch-search-history current-query nil))))
 
 (defun notmuch-search-get-query ()
   "Return the current query in this search buffer."
@@ -1006,10 +1005,9 @@ (defun notmuch-search (&optional query oldest-first target-thread target-line no
     (setq notmuch-search-target-thread target-thread)
     (setq notmuch-search-target-line target-line)
     (notmuch-tag-clear-cache)
-    (let ((proc (get-buffer-process (current-buffer)))
-	  (inhibit-read-only t))
-      (when proc
-	(error "notmuch search process already running for query `%s'" query))
+    (when (get-buffer-process buffer)
+      (error "notmuch search process already running for query `%s'" query))
+    (let ((inhibit-read-only t))
       (erase-buffer)
       (goto-char (point-min))
       (save-excursion
@@ -1019,12 +1017,12 @@ (defun notmuch-search (&optional query oldest-first target-thread target-line no
 		     (if oldest-first
 			 "--sort=oldest-first"
 		       "--sort=newest-first")
-		     query))
-	      ;; Use a scratch buffer to accumulate partial output.
-	      ;; This buffer will be killed by the sentinel, which
-	      ;; should be called no matter how the process dies.
-	      (parse-buf (generate-new-buffer " *notmuch search parse*")))
-	  (process-put proc 'parse-buf parse-buf)
+		     query)))
+	  ;; Use a scratch buffer to accumulate partial output.
+	  ;; This buffer will be killed by the sentinel, which
+	  ;; should be called no matter how the process dies.
+	  (process-put proc 'parse-buf
+		       (generate-new-buffer " *notmuch search parse*"))
 	  (set-process-filter proc 'notmuch-search-process-filter)
 	  (set-process-query-on-exit-flag proc nil))))
     (run-hooks 'notmuch-search-hook)))
-- 
2.29.1
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