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From: Ihor Radchenko <yantar92@posteo.net>
To: Max Nikulin <manikulin@gmail.com>
Cc: emacs-orgmode@gnu.org
Subject: Re: [DISCUSSION, default settings] Using mailcap as default handler for opening file links
Date: Tue, 13 Feb 2024 11:27:37 +0000	[thread overview]
Message-ID: <87bk8kwqmu.fsf@localhost> (raw)
In-Reply-To: <uqfi2h$arb$1@ciao.gmane.io>

Max Nikulin <manikulin@gmail.com> writes:

>> I have been digging more on this issue recently, and I have found that
>> Carsten once attempted to tweak this default to use xdg-mime:
>
> Have you faced another issue with mailcap? Frankly speaking, I am unsure 
> what particular issues we are going to address (file type, Emacs and Org 
> versions, OS).

I am mostly going to address user confusion about mailcap - (1) a number
of people are using DMs that rely on FreeDesktop and xdg-open; they get
surprised when .mailcap is used - I've seen a number of questions in
IRC/Matrix and on reddit related to how Org mode opens file links; (2)
Emacs' mailcap does not implement the specification fully - only a
subset of mailcap format is obeyed.

So, I do not feel that Emacs' implementation of mailcap support is a
good default for most users.

> Did you intentionally mentioned "xdg-mime"?

No. I meant xdg-open.

> ... While xdg-open tries to find 
> suitable .desktop file to open a file, xdg-mime is more close to the 
> file(1) tool, but it consults signatures from shared-mime-info and 
> site&user config files. In addition, unlike file(1), it uses file 
> extensions to guess media type.

That might be a good alternative to file indeed; although file is
probably more widely installed.

> An advantage of mailcap.el is that it should allow users have 
> Emacs-specific Emacs-wide configuration for viewers.

Yes, but mailcap is not documented in Emacs manual.
FYI, I first heard that .mailcap files are a thing when I encountered
org-file-apps.

> ... In principle it 
> should be more reliable when invoking emacs through xdg-open when Emacs 
> is configured as a handler for some media types.

I doubt so. There are problems with mailcap.el and there might be
problems with Emacs media type configuration. I prefer xdg.

> Is it necessary to modify Org? Maybe an alternative is to add "xdg-open 
> %s" for */* to `mailcap-user-mime-data'.

Do you mean changing the default value of `mailcap-mime-data'?

>> I believe that xdg-open issue has been fixed by you in
>> https://git.savannah.gnu.org/cgit/emacs/org-mode.git/commit/?id=5db61eb0f
>> org.el: Avoid xdg-open silent failure
>
> I am still not really comfortable due to the strategy to start external 
> processes diverged from methods used in browse-url.el.

Is it related to the problem at hand?

> I have not had a look into xdg.el yet.

AFAIK, xdg.el does not support xdg-open functionality. We cannot use it
here.

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>


  reply	other threads:[~2024-02-13 11:25 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-15 16:49 Bug in 9.5.3 org--file-default-apps Craig STCR
2022-05-16  4:53 ` Ihor Radchenko
     [not found]   ` <6615610d-93ae-171f-b554-3f4cc79354cc@gmail.com>
2022-05-16  8:33     ` Ihor Radchenko
     [not found]       ` <86692975-4d5f-6933-3227-c6b208f76862@gmail.com>
2022-05-16 11:57         ` Ihor Radchenko
2022-05-16 15:14           ` Max Nikulin
2022-05-16 19:15             ` Craig STCR
2022-05-16 19:29             ` Craig STCR
2022-05-17 16:03               ` Max Nikulin
2022-05-18 11:36             ` Ihor Radchenko
2022-05-18 16:10               ` Max Nikulin
2022-05-19 13:39                 ` Ihor Radchenko
2022-05-19 14:45                   ` Max Nikulin
2022-05-20  8:22                     ` Ihor Radchenko
2022-05-20 11:31                       ` Max Nikulin
2022-05-21  1:44                         ` Ihor Radchenko
2022-05-21 14:56                           ` Max Nikulin
2022-05-22  4:10                             ` [PATCH] " Ihor Radchenko
2022-05-22  7:40                               ` Max Nikulin
2022-05-26  4:23                                 ` [PATCH v2] " Ihor Radchenko
2022-05-29  6:07                                   ` Max Nikulin
2022-05-30 14:00                                     ` [PATCH v3] " Ihor Radchenko
2022-05-30 15:38                                       ` Max Nikulin
2022-05-31 15:07                                         ` Max Nikulin
2022-06-04 13:42                                         ` [DISCUSSION, default settings] Using mailcap as default handler for opening file links (was: [PATCH v3] Re: Bug in 9.5.3 org--file-default-apps) Ihor Radchenko
2022-06-04 17:01                                           ` Greg Minshall
2022-06-06 12:50                                           ` [DISCUSSION, default settings] Using mailcap as default handler for opening file links Max Nikulin
2022-06-06 15:22                                             ` Max Nikulin
2022-06-06 17:47                                             ` Bhavin Gandhi
2022-06-10 16:38                                               ` Max Nikulin
2024-02-12 12:36                                             ` Ihor Radchenko
2024-02-13 10:59                                               ` Max Nikulin
2024-02-13 11:27                                                 ` Ihor Radchenko [this message]
2024-02-13 15:44                                                   ` Max Nikulin
2024-02-13 15:47                                                     ` Max Nikulin
2024-02-14 14:51                                                     ` Ihor Radchenko
2024-02-27 10:43                                                       ` Max Nikulin
2022-05-29  7:07                                   ` [PATCH v2] Re: Bug in 9.5.3 org--file-default-apps Max Nikulin
2022-05-23 12:40                           ` Craig STCR
2022-05-23 12:59                             ` Craig STCR
2022-05-23 14:14                               ` Craig STCR
2022-05-23 14:32                                 ` Craig STCR
2022-05-25  6:18                               ` Ihor Radchenko
2022-05-23 15:28                             ` Max Nikulin
2022-05-25  6:24                               ` Ihor Radchenko
2022-05-25 11:38                                 ` Craig STCR
2022-05-25  6:10                             ` Ihor Radchenko
     [not found]         ` <e9b4e88d-3807-9080-fa86-c297b17794cb@gmail.com>
2022-05-16 12:38           ` Craig STCR
2022-05-18 11:38             ` Ihor Radchenko

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