GNU bug report logs - #65156
29.1; Reading from pipe with --insert or insert-file-contents no longer supported

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From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Eli Zaretskii <eliz <at> gnu.org>, mail <at> lucaswerkmeister.de
Cc: larsi <at> gnus.org, 65156 <at> debbugs.gnu.org
Subject: bug#65156: 29.1; Reading from pipe with --insert or insert-file-contents no longer supported
Date: Wed, 9 Aug 2023 13:57:36 -0700

On 2023-08-08 12:27, Eli Zaretskii wrote:
> Paul, can there be a regular file that is not seekable?

No.

The current code on master is a bit of a mess. There's nothing wrong 
with using a positive BEG on a seekable and non-regular file, for 
example; the old doc string was wrong and now the code has been changed 
to match the doc string unfortunately. Nor is there anything wrong if 
BEG is 0 on a non-seekable file (though this latter issue is 
longstanding and so I guess nobody cares).

There are surely some gotchas involving the REPLACE arg of 
insert-file-contents too, but it's hard to tell because the doc string 
seems to be corrupted for the case where REPLACE is 'if-regular' and I 
don't know what it's trying to say.

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