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;;; km-mail.el --- Mail-related extensions
;; Copyright (C) 2012-2018 Kyle Meyer <kyle@kyleam.com>
;; Author: Kyle Meyer <kyle@kyleam.com>
;; URL: https://github.com/kyleam/emacs.d
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <http://www.gnu.org/licenses/>.
;;; Code:
(require 'compile)
(require 'notmuch)
(require 'km-util)
;;;###autoload
(defun km/notmuch-show-open-github-patch ()
"Open patch from GitHub email."
(interactive)
(with-current-notmuch-show-message
(km/open-github-patch (current-buffer))))
;;;###autoload
(defun km/notmuch-show-pipe-message-to-project (project)
(interactive
(list (expand-file-name
(completing-read "Project: "
(projectile-relevant-known-projects)))))
(let ((default-directory project))
(call-interactively #'notmuch-show-pipe-message)))
;;;###autoload
(defun km/notmuch-show-pipe-part-to-project (project)
(interactive
(list (expand-file-name
(completing-read "Project: "
(projectile-relevant-known-projects)))))
(let ((default-directory project))
(call-interactively #'notmuch-show-pipe-part)))
;;;###autoload
(defun km/notmuch-archive-all ()
"Call `notmuch-search-archive-thread' with whole-buffer region."
(interactive)
(mark-whole-buffer)
(call-interactively #'notmuch-search-archive-thread))
;;;###autoload
(defun km/notmuch-tree-from-show-current-query (&optional ignore-context)
(interactive "P")
(let ((notmuch-show-query-context (and (not ignore-context)
notmuch-show-query-context)))
(call-interactively #'notmuch-tree-from-show-current-query)))
;;;###autoload
(defun km/notmuch-show-at-point ()
"Call `notmuch-show' with message or thread ID at point."
(interactive)
(let ((id (save-excursion
(skip-syntax-backward "^\\s-")
(and (looking-at
(rx (group (zero-or-one (or "id:" "thread:")))
(one-or-more (any "-" "_" "." "@" "/" alnum))))
(concat (and (string= (match-string 1) "") "id:")
(match-string-no-properties 0))))))
(if id
(notmuch-show id)
(call-interactively #'notmuch-show))))
(defun km/notmuch-github-pr-number ()
"Return the PR number for this message."
(let (pr)
(with-current-notmuch-show-message
(goto-char (point-min))
(if (re-search-forward "https://github\\.com/.*/pull/\\([0-9]+\\)" nil t)
(setq pr (match-string-no-properties 1))
(user-error "Could not find PR number")))
pr))
(defvar km/notmuch-github-repo-function nil
"Function that returns repo information from this message.
If the function can determine the repository, it should return a
list, structured as (DIRECTORY REMOTE BASE).
DIRECTORY absolute path to the top-level of the local repo
REMOTE name of the remote to fetch from
BASE used to limit the log (i.e., \"BASE..PR-REF\").")
;;;###autoload
(defun km/notmuch-show-pr-in-magit (&optional force-fetch)
"Show the Magit log for this message's PR.
With a prefix argument, fetch from the remote even if the ref
already exists locally. The repository information is extracted
with `km/notmuch-github-repo-function'.
This function assumes that the remote is a GitHub repo and that
you've configured \"git fetch <remote>\" to fetch pull request
refs. This can be done by placing a line like
fetch = +refs/pull/*/head:refs/pull/<remote>/*
in the remote's \".git/config\" entry."
(interactive "P")
(require 'magit)
(unless (functionp km/notmuch-github-repo-function)
(user-error "`km/notmuch-github-repo-function' is not specified"))
(let* ((info (or (funcall km/notmuch-github-repo-function)
(user-error "Could not determine repository")))
(remote (or (nth 1 info) "origin"))
(base-ref (or (nth 2 info)
(concat remote "/master")))
(local-ref (format "refs/pull/%s/%s"
remote
(km/notmuch-github-pr-number)))
(default-directory (nth 0 info)))
(when (or force-fetch
(not (magit-ref-exists-p local-ref)))
(magit-call-git "fetch" remote))
(apply #'magit-log
(list (concat base-ref ".." local-ref))
(magit-log-arguments))))
;;;###autoload
(defun km/notmuch-search ()
"Call `notmuch-search', bypassing `notmuch-read-query'."
(interactive)
(notmuch-search
(read-string "Notmuch search: "
"date:20d.. "
'notmuch-search-history
(pcase major-mode
(`notmuch-search-mode (notmuch-search-get-query))
(`notmuch-show-mode (notmuch-show-get-query))
(`notmuch-tree-mode (notmuch-tree-get-query))))
(default-value 'notmuch-search-oldest-first)))
;; Modified from fucntion in Nicolas Petton's emacs configuration
;; (https://gitlab.petton.fr/nico/emacs.d/, 208407f53a)
;;;###autoload
(defun km/debbugs-notmuch-select-report (&rest _)
(let* ((status (debbugs-gnu-current-status))
(id (cdr (assq 'id status)))
(merged (cdr (assq 'mergedwith status))))
(setq merged (if (listp merged) merged (list merged)))
(unless id
(user-error "No bug report on the current line"))
(let ((address (format "%s@debbugs.gnu.org" id))
(merged-addresses (string-join (mapcar (lambda (id)
(format "%s@debbugs.gnu.org" id))
merged)
" ")))
(notmuch-tree (format "%s %s" address merged-addresses)))))
(defmacro km/notmuch-with-raw-message (msg-id &rest body)
"Evaluate BODY with temporary buffer containing text for MSG-ID.
MSG-ID is evaluated before entering the temporary buffer. See
also `with-current-notmuch-show-message'."
(declare (indent 1) (debug t))
(let ((id (make-symbol "id")))
`(let ((,id ,msg-id))
(with-temp-buffer
(let ((coding-system-for-read 'no-conversion))
(call-process notmuch-command nil t nil "show" "--format=raw" ,id)
(goto-char (point-min))
,@body)))))
(defun km/notmuch-show-debbugs-ack-info ()
(km/notmuch-with-raw-message (notmuch-show-get-message-id)
(when (save-excursion (re-search-forward "^X-Gnu-PR-Message: ack" nil t))
(list
(and (re-search-forward "^References: <\\([^>\n]+\\)>" nil t)
(match-string 1))
(and (re-search-forward "^Reply-To: \\([0-9]+@debbugs\\.gnu\\.org\\)"
nil t)
(match-string 1))))))
;;;###autoload
(defun km/notmuch-show-stash-git-send-email-debbugs ()
"Debbugs-aware variant of `notmuch-show-stash-git-send-email'.
If the current message is an acknowledgement from the GNU bug
Tracking System, set '--in-reply-to' to the initial report and
'--to' to the newly assigned address. Otherwise, call
`notmuch-show-stash-git-send-email'."
(interactive)
(pcase-let ((`(,root-id ,bug-address) (km/notmuch-show-debbugs-ack-info)))
(if (not (and root-id bug-address))
(call-interactively #'notmuch-show-stash-git-send-email)
(notmuch-common-do-stash
(string-join
(list (notmuch-show-stash-git-helper (list bug-address) "--to=")
(notmuch-show-stash-git-helper
(message-tokenize-header
(km/notmuch-with-raw-message (concat "id:" root-id)
(and (re-search-forward "^Cc: \\(.+\\)" nil t)
(match-string 1))))
"--cc=")
(notmuch-show-stash-git-helper (list root-id) "--in-reply-to="))
" ")))))
;;;###autoload
(defun km/notmuch-visit-github-url (&optional copy)
"Visit the GitHub link associated with this message.
If COPY is non-nil, copy the URL instead of visiting it."
(interactive "P")
(funcall
(if copy
(lambda (url) (kill-new (message url)))
#'browse-url)
(km/notmuch-with-raw-message (notmuch-show-get-message-id)
(if (re-search-forward
(concat "Reply to this email directly or view it on GitHub:\n"
"\\(https://github\.com/[^\n]+\\)$")
nil t)
(match-string-no-properties 1)
(user-error "No GitHub URL found")))))
;;; Mail sync
(defvar mail-sync-log-file "/var/log/mail-sync/mail-sync")
(defun mail-sync-log-to-file (buf _)
(with-temp-buffer
(insert " \n")
(insert (with-current-buffer buf (buffer-string)))
(write-region nil nil mail-sync-log-file 'append 'no-msg)))
(defvar mail-sync-calling-buffer nil)
(defun mail-sync-refresh-caller (_ exit)
(when (equal exit "finished\n")
(when (and mail-sync-calling-buffer
(buffer-live-p mail-sync-calling-buffer))
(with-current-buffer mail-sync-calling-buffer
(notmuch-refresh-this-buffer))))
(setq mail-sync-calling-buffer nil))
;;;###autoload
(define-compilation-mode mail-sync-mode "Mail-sync"
"Sync mail, logging output to *mail-sync-log*."
(set (make-local-variable 'compilation-finish-functions)
'(mail-sync-log-to-file mail-sync-refresh-caller)))
;;;###autoload
(defun km/notmuch-sync-mail (&optional cmd-append)
(interactive (list (if (fboundp 'km/read-sync-mail-args)
(km/read-sync-mail-args)
(read-string "sync-mail args: "))))
(setq mail-sync-calling-buffer (current-buffer))
(let ((default-directory (expand-file-name "~/"))
(display-buffer-overriding-action
'(display-buffer-below-selected)))
(compilation-start (concat "sync-mail"
(and cmd-append " ")
cmd-append)
'mail-sync-mode)))
(provide 'km-mail)
;;; km-mail.el ends here
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