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Re: on ESHELL, utf-8 and fossil command-line commit message


From: Eli Zaretskii
Subject: Re: on ESHELL, utf-8 and fossil command-line commit message
Date: Sat, 01 Oct 2022 18:05:51 +0300

> Date: Sat, 01 Oct 2022 11:19:43 -0300
> From:  Wayne Harris via Users list for the GNU Emacs text editor 
> <help-gnu-emacs@gnu.org>
> 
> As far as I can tell in my GNU EMACS, all by buffers relevant to context
> here are set to UTF-8.  I see the letter U in the first letter of the
> modeline --- the GNU EMACS status bar.  (I'm on Windows, by the way.)

Bad idea.  See below.

> When I add an UTF-8 message through the command line in ESHELL, it
> doesn't display properly when I say ``fossil timeline''.  Check it:
> 
> --8<---------------cut here---------------start------------->8---
> %fs add encoding.txt 
> ADDED  encoding.txt
> 
> %fs commit -m 'Naïve commit.'
> Pull from https://mer@somewhere.edu/test
> Round-trips: 1   Artifacts sent: 0  received: 0
> Pull done, wire bytes sent: 442  received: 1959  ip: 5.161.138.46
> New_Version: f4c20ecefc9d04d5fd2548eb4d3008d9ffb759a4deebedd595b222f81eef6b1f
> Sync with https://mer@somewhere.edu/test
> Round-trips: 1   Artifacts sent: 2  received: 0
> Sync done, wire bytes sent: 2342  received: 309  ip: 5.161.138.46
> 
> %fs timeline
> === 2022-10-01 ===
> 14:03:28 [f4c20ecefc] *CURRENT* Naïve commit. (user: mer tags: trunk)
> [...]
> --8<---------------cut here---------------end--------------->8---
> 
> However, if instead of the command-line, I use a regular GNU EMACS
> buffer, it works just fine.
> 
> --8<---------------cut here---------------start------------->8---
> %echo kkk >> encoding.txt 
> 
> %fs commit
> Pull from https://mer@somewhere.edu/test
> Round-trips: 1   Artifacts sent: 0  received: 0
> Pull done, wire bytes sent: 437  received: 2118  ip: 5.161.138.46
> emacsclientw ./ci-comment-A2803F45F10B.txt
> Waiting for Emacs...
> Pull from https://mer@somewhere.edu/test
> Round-trips: 1   Artifacts sent: 0  received: 0
> Pull done, wire bytes sent: 441  received: 2118  ip: 5.161.138.46
> New_Version: 09ea1b5d5b8d776d61a74bb412cd58bd8b6f82323c2f539a1eb0d915f7026f20
> Sync with https://mer@somewhere.edu/test
> Round-trips: 1   Artifacts sent: 2  received: 0
> Sync done, wire bytes sent: 2496  received: 309  ip: 5.161.138.46
> 
> %fs timeline
> === 2022-10-01 ===
> 14:09:39 [09ea1b5d5b] *CURRENT* Naiveté. (user: mer tags: trunk)
> --8<---------------cut here---------------end--------------->8---
> 
> Who is mangling my command-line arguments and why?  Thank you!

You cannot use UTF-8 for encoding command-line arguments of
subprocesses on MS-Windows.  Use your system's codepage instead.  This
means make sure the Eshell buffer's value of buffer-file-coding-system
is your system codepage, not UTF-8.



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