Bastien <[email protected]> writes: > Hi, > > stardiviner <[email protected]> writes: > >> I found when network is bad and slow, or the download file is big, the >> org-attach-url will suspend Emacs for a long time. User might have to cancel >> downloading, and start again later. > > Indeed, this might be annoying. At the same time, it is not > unreasonable to expect the user to know what size is the contents he > is willing to attach to an Org node.
It's not the URL file size problem, sometime network is bad. I meet some
situations like downloading 1M file might use 5 minutes. Not 1M file or 1G file
difference.
>
>> I hope to make "org-attach-url" download file asynchronously. But function
>> org-attach-attach hardcoded this function for 'url method. Here is a patch to
>> make it into an option.
>
> (FWIW, I could not find the patch.)
Aha, I forgot the patch. I attached now. The patch does not provide an async
function to download. Just provide an easy way for user to use other async
functions.
>
> I think you are on the right track when trying to enhance the 'url
> package. Maybe url-copy-file should be asynchronous and url could
> provide url-copy-file-synchronously (to mimic the url-retrieve and
> url-retrieve-synchronously pair)?
Actually I did check out url-copy-file-synchronously source code, try to mimic
an async version function. But seems I can't implement it. I will post an email
to Emacs-dev mailing list whether this can be improved.
>
> Until Emacs has a function to copy a URL's contents asynchronously,
> I'd rather not add this functionality in Org.
Emacs async functionality is always bad. Waiting for Emacs get better async
support might need a very long time.
I still think simply provide an simple entry for user to change downloading
function is a simpler option. WDYT?
--
[ stardiviner ]
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From 61e26e148e68deb03f26dddb2a88beae5b6869f7 Mon Sep 17 00:00:00 2001 From: stardiviner <[email protected]> Date: Wed, 29 Apr 2020 21:38:34 +0800 Subject: [PATCH] lisp/org-attach.el: support custom url file downloading function lisp/org-attach.el (org-attach-url-function): make download function as a defcustom option. So that user can use async function or other functions instead. --- lisp/org-attach.el | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/lisp/org-attach.el b/lisp/org-attach.el index 57d1360fc..e33551f40 100644 --- a/lisp/org-attach.el +++ b/lisp/org-attach.el @@ -110,6 +110,12 @@ (defcustom org-attach-method 'cp (const :tag "Hard Link" ln) (const :tag "Symbol Link" lns))) +(defcustom org-attach-url-function 'url-copy-file + "The download file function to use in org-attach-url." + :type '(choice (const 'url-copy-file)) + :safe #'functionp + :group 'org-attach) + (defcustom org-attach-expert nil "Non-nil means do not show the splash buffer with the attach dispatcher." :group 'org-attach @@ -504,7 +510,7 @@ (defun org-attach-attach (file &optional visit-dir method) ((eq method 'cp) (copy-file file attach-file)) ((eq method 'ln) (add-name-to-file file attach-file)) ((eq method 'lns) (make-symbolic-link file attach-file)) - ((eq method 'url) (url-copy-file file attach-file))) + ((eq method 'url) (apply org-attach-url-function file (list attach-file)))) (run-hook-with-args 'org-attach-after-change-hook attach-dir) (org-attach-tag) (cond ((eq org-attach-store-link-p 'attached) -- 2.26.2
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