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-rw-r--r--piem-lei.el103
1 files changed, 81 insertions, 22 deletions
diff --git a/piem-lei.el b/piem-lei.el
index ffd72f3..6c53733 100644
--- a/piem-lei.el
+++ b/piem-lei.el
@@ -37,6 +37,19 @@
"Which lei executable to use."
:type 'string)
+(defcustom piem-lei-query-initial-input "d:20.days.ago.. "
+ "Initial input when reading `lei q' queries."
+ :package-version '(piem . "0.4.0")
+ :type '(choice (const :tag "None" nil)
+ (string :tag "Query")))
+
+(defcustom piem-lei-query-oldest-thread-first nil
+ "Whether to display older threads before newer ones.
+The date and time of the initial message is taken as the age of
+the thread."
+ :package-version '(piem . "0.4.0")
+ :type 'boolean)
+
;;;; Helpers
@@ -170,7 +183,7 @@ unless DISPLAY is non-nil."
(defvar piem-lei-show-mode-map
(let ((map (make-sparse-keymap)))
(define-key map "s" #'piem-lei-q)
- (define-key map "t" #'piem-lei-query-thread)
+ (define-key map "t" #'piem-lei-mid-thread)
map)
"Keymap for `piem-lei-show-mode'.")
@@ -227,15 +240,19 @@ unless DISPLAY is non-nil."
(error "Date did not match expected format: %S" date))
'font-lock-face 'piem-lei-query-date)))
+(defvar piem-lei-query--buffer-name "*lei-query*")
+
;;;###autoload
(defun piem-lei-query (query &optional args)
"Call `lei q' with QUERY and ARGS.
QUERY is split according to `split-string-and-unquote'."
(interactive
(list (split-string-and-unquote
- (read-string "Query: " "d:20.days.ago.. " 'piem-lei-query-history))
+ (read-string "Query: "
+ piem-lei-query-initial-input
+ 'piem-lei-query-history))
(transient-args 'piem-lei-q)))
- (with-current-buffer (get-buffer-create "*lei-query*")
+ (with-current-buffer (get-buffer-create piem-lei-query--buffer-name)
(let ((inhibit-read-only t))
(erase-buffer)
(piem-lei-insert-output
@@ -366,7 +383,7 @@ line's message, scroll its text downward, passing ARG to
(define-key map "n" #'piem-lei-query-next-line)
(define-key map "p" #'piem-lei-query-previous-line)
(define-key map "s" #'piem-lei-q)
- (define-key map "t" #'piem-lei-query-thread)
+ (define-key map "t" #'piem-lei-mid-thread)
map)
"Keymap for `piem-lei-query-mode'.")
@@ -511,7 +528,8 @@ external (via `lei add-external')."
(piem-lei-q:--limit)
(piem-lei-q:--offset)]
["Actions"
- ("s" "Search with lei" piem-lei-query)])
+ ("s" "Search" piem-lei-query)
+ ("t" "Search, threaded output" piem-lei-query-threads)])
;;;;; Threading
@@ -556,6 +574,20 @@ external (via `lei add-external')."
(setq msg2 (piem-lei-msg-parent msg2)))
nil)))
+(defun piem-lei--msg-time-with-fallback (msg)
+ (or (piem-lei-msg-time msg)
+ ;; The initial message is a ghost. Use the time from the first
+ ;; child encountered, without making any effort to ensure that
+ ;; it's the sibling with the earliest time.
+ (catch 'stop
+ (let ((children (piem-lei-msg-children msg)))
+ (while children
+ (let ((child (pop children)))
+ (if-let ((time (piem-lei-msg-time child)))
+ (throw 'stop time)
+ (setq children
+ (append children (piem-lei-msg-children child))))))))))
+
(defun piem-lei-query--thread (records)
"Thread messages in RECORDS.
@@ -601,7 +633,13 @@ Return a list with a `piem-lei-msg' object for each root."
(unless (piem-lei-msg-parent v)
(push v roots)))
thread)
- (nreverse roots))))
+ (let* ((fn (if piem-lei-query-oldest-thread-first #'not #'identity))
+ (sort-fn
+ (lambda (a b)
+ (funcall fn
+ (time-less-p (piem-lei--msg-time-with-fallback b)
+ (piem-lei--msg-time-with-fallback a))))))
+ (sort roots sort-fn)))))
(defvar piem-lei-query--subject-split-re
(rx string-start
@@ -661,19 +699,25 @@ Return a list with a `piem-lei-msg' object for each root."
(forward-line))
(nreverse items))))
-(defun piem-lei-query-thread (mid &optional args)
- "Show thread containing message MID.
-ARGS is passed to the underlying `lei q' call."
+(defvar piem-lei-query-threads--buffer-name piem-lei-query--buffer-name)
+
+(defun piem-lei-query-threads (query &optional args pt-mid)
+ "Show threads containing matches for QUERY.
+ARGS is passed to the underlying `lei q' call. If PT-MID is
+non-nil and matches the message ID of a result, move point to
+that line."
(interactive
- (if-let ((mid (piem-lei-get-mid)))
- (list mid piem-lei-buffer-args)
- (list (read-string "Message ID: " nil nil (piem-mid)) nil)))
- (let* ((query (list (concat "mid:" mid)))
- (records (piem-lei-query--slurp
+ (list (split-string-and-unquote
+ (read-string "Query: "
+ piem-lei-query-initial-input
+ 'piem-lei-query-history))
+ (transient-args 'piem-lei-q)))
+ (let* ((records (piem-lei-query--slurp
(append args (list "--threads") query)))
(msgs (piem-lei-query--thread records))
depths pt-final subject-prev)
- (with-current-buffer (get-buffer-create "*lei-thread*")
+ (with-current-buffer
+ (get-buffer-create piem-lei-query-threads--buffer-name)
(let ((inhibit-read-only t))
(erase-buffer)
(while msgs
@@ -682,6 +726,11 @@ ARGS is passed to the underlying `lei q' call."
(children (piem-lei-msg-children msg))
(depth (1+ (or (cdr (assoc (piem-lei-msg-parent msg) depths))
-1))))
+ (when (and (equal depth 0)
+ (not (bobp)))
+ ;; Add newline between threads to make different threads
+ ;; easier to distinguish.
+ (insert ?\n))
(when children
(setq msgs (append children msgs)))
(push (cons msg depth) depths)
@@ -710,23 +759,33 @@ ARGS is passed to the underlying `lei q' call."
(line-end-position)
(list 'piem-lei-query-result data))
(setq subject-prev subject))
- (insert (make-string 17 ?\s) ; Date alignment.
- (piem-lei-query--format-thread-marker depth)
- (propertize (concat " <" mid-msg ">")
- 'font-lock-face
- 'piem-lei-query-thread-ghost))
+ (insert (propertize
+ (concat "0000-00-00 00:00 "
+ (piem-lei-query--format-thread-marker depth)
+ " <" mid-msg ">")
+ 'font-lock-face
+ 'piem-lei-query-thread-ghost))
(setq subject-prev nil))
- (when (equal mid-msg mid)
+ (when (equal mid-msg pt-mid)
(setq pt-final (line-beginning-position)))
(insert ?\n)))
(insert "End of lei-q results"))
(goto-char (or pt-final (point-min)))
(piem-lei-query-mode)
(setq piem-lei-buffer-args args)
- (setq piem-lei-buffer-mid mid)
(setq piem-lei-buffer-query query)
(pop-to-buffer-same-window (current-buffer)))))
+(defun piem-lei-mid-thread (mid &optional args)
+ "Show thread containing message MID.
+ARGS is passed to the underlying `lei q' call."
+ (interactive
+ (if-let ((mid (piem-lei-get-mid)))
+ (list mid piem-lei-buffer-args)
+ (list (read-string "Message ID: " nil nil (piem-mid)) nil)))
+ (let ((piem-lei-query-threads--buffer-name "*lei-thread*"))
+ (piem-lei-query-threads (list (concat "mid:" mid)) args mid)))
+
;;;; piem integration