emacs-orgmode@gnu.org archives
 help / color / mirror / code / Atom feed
From: Leo Vivier <leo.vivier+dev@gmail.com>
To: emacs-orgmode@gnu.org
Subject: [PATCH] org-capture: Update plist before finalizing
Date: Sun, 26 Jul 2020 00:50:49 +0200	[thread overview]
Message-ID: <87h7tv9pkm.fsf@hidden> (raw)

[-- Attachment #1: Type: text/plain, Size: 3124 bytes --]

Hi there,

I’m working on the parallelisation of `org-capture' for Org-roam, and
I’ve run into a problem with the updating of `org-capture-plist'.

We use the global-variable `org-capture-plist' to populate the
local-variable `org-capture-current-plist' on the init of the
`org-capture' buffer.  However, we do not do the opposite (i.e. update
the global-variable with the local-variable) on `org-capture-finalize'.

This is fine for the majority of `org-capture-finalize', since we’re
using the LOCAL arg of `org-capture-get' to read
`org-capture-current-plist' instead of `org-capture-list', but this
trick does not work for `org-capture-after-finalize', since the hook is
run after the `org-capture-buffer' has been closed.

This causes problem with `:kill-buffer t', and it limits what can be
done with cleanup functions in `org-capture-after-finalize'.

Tested in emacs -Q.

- Start a capture process (A)
- Start another capture process (B)
- Cancel B
- Cancel A

;; Eval the following form:
  (setq org-capture-templates
        '(("a" "foo" plain (file "/tmp/foo.org") "* %?"
           :kill-buffer t)
          ("b" "bar" plain (file "/tmp/bar.org") "* %?"
           :kill-buffer t)))
  (let* ((a (save-window-excursion
              (org-capture nil "a")
         (b (save-window-excursion
              (org-capture nil "b")
    (with-current-buffer b
    (with-current-buffer a

;; Result: (error "Selecting deleted buffer")
;; `foo.org' is still alive

The problem happens during `org-capture-after-finalize'. A’s
`org-capture-finalize' does not update `org-capture-plist' with the value
of `org-current-capture-plist' during its execution, which means that
`org-capture-plist' still holds B’s value, including :buffer.  Since B’s
base-buffer was killed, :buffer points to a killed buffer, which is what
is raising the error.

I propose to update `org-capture-plist' early in `org-capture-finalize'.
I don’t think this would have unforeseen effects, since
`org-capture-list' is already meant to be transient, and we’d only be
expanding its use from init-only to init-and-exit.


Leo Vivier

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: 0001-org-capture-Update-plist-before-finalizing.patch --]
[-- Type: text/x-patch, Size: 882 bytes --]

From d14f15ab76d60c3f65837a6d14712dadabf324bf Mon Sep 17 00:00:00 2001
From: Leo Vivier <leo.vivier+dev@gmail.com>
Date: Sat, 25 Jul 2020 21:53:07 +0200
Subject: [PATCH] org-capture: Update plist before finalizing

* lisp/org-capture.el (org-capture-finalize): Update
`org-capture-plist' with local-value before finalizing.
 lisp/org-capture.el | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lisp/org-capture.el b/lisp/org-capture.el
index 2cc1ce394..223ed4124 100644
--- a/lisp/org-capture.el
+++ b/lisp/org-capture.el
@@ -728,6 +728,9 @@ captured item after finalizing."
   (run-hooks 'org-capture-prepare-finalize-hook)
+  ;; Update `org-capture-plist' with the local-value
+  (setq org-capture-plist org-capture-current-plist)
   ;; Did we start the clock in this capture buffer?
   (when (and org-capture-clock-was-started

             reply	other threads:[~2020-07-25 22:51 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-25 22:50 Leo Vivier [this message]
2020-09-02  4:50 ` Kyle Meyer
2020-09-05  7:11   ` Leo Vivier
2020-09-05  9:14     ` Bastien

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:

  List information: https://www.orgmode.org/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=87h7tv9pkm.fsf@hidden \
    --to=leo.vivier+dev@gmail.com \
    --cc=emacs-orgmode@gnu.org \
    --subject='Re: [PATCH] org-capture: Update plist before finalizing' \


* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Code repositories for project(s) associated with this inbox:


This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).