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bug#50225: 13.0.14; Non-file-visiting TeX buffers

From: Gustavo Barros
Subject: bug#50225: 13.0.14; Non-file-visiting TeX buffers
Date: Sat, 28 Aug 2021 16:05:32 -0300
User-agent: mu4e 1.6.5; emacs 27.2

Hi Tassilo,

On Sat, 28 Aug 2021 at 09:10, Tassilo Horn <tsdh@gnu.org> wrote:

The problem is that not just the tex file doesn't exist but the
containing directory ~/test/ doesn't exist either. But that seems to
be already set as `default-directory' so the shell commands testing
for the availability of the evince-based viewers should run in a
non-existend CWD.

Well, I always create "throw away" test files under a "throw away"
dir, not to have to deal with stray `TeX-auto-local' directories mixed
with my actual files.  ;-)

That's a sensible habit. I guess you haven't seen that error previously
because you always opened another tex file in some existing directory
first.  The error only occurred when tex.el was initially loaded while
default-directory was set to some non-existent directory.

I'm not up-to-date with the recent changes related to the issue.

No, the problem is definitely there since 2016, no recent change

Well, I was much surprised by this. For I really do this frequently, and do it purposefully. And have been doing it for some time. Creating a new directory in the process is what ensures I'm getting a clean slate, so I'm sure to do it. And the first time I met the issue was the day I reported it. Since I had just upgraded AUCTeX, I assumed it must have been it, wrongly, as it turns out. But I did some checking now. I reverted to v13.0.13, and the problem was there. Then to v13.0.12, and the problem was there. I did upgrade my OS just this week (Mint 20.1 to 20.2 Cinnamon), so there might have been some change on `evince's side making it less lenient. Truth is: I don't know what changed, even though I'm convinced something has, recently. But, as far as I can tell from my tests, I think you are right in saying it was not AUCTeX.

Should be fixed on master.  Please give it a try.

I have, and can gladly report the issue is gone on my side with the fix. Thank you very much.


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