From: Michael Albinus <michael.albinus@gmx.de>
To: Jeronimo Pellegrini <j_p@aleph0.info>
Cc: 35639@debbugs.gnu.org
Subject: bug#35639: 27.0.50; tramp fails to use ssh on LibreCMC (no base64 encoder available, and not mentioned in tramp manual)
Date: Thu, 09 May 2019 14:05:39 +0200 [thread overview]
Message-ID: <8736lnx27g.fsf@gmx.de> (raw)
In-Reply-To: <20190509101938.GB1697@socrates.lan> (Jeronimo Pellegrini's message of "Thu, 9 May 2019 07:19:39 -0300")
Jeronimo Pellegrini <j_p@aleph0.info> writes:
> Hi Michael,
Hi Jeronimo,
> Yes. Instead of od:
> od -v -t x1 -A n
>
> it would be possible to use hexdump:
> hexdump -v -e '16/1 " %02x" "\n"'
Yes, looks good.
> However... hexdump may not be present in all Linux/*BSD/*ix systems.
> At least in Debian, it is in package bsdmainutils, which is
> not required. (od, on the other hand, is in package coreutils, which
> is required)
See, how we do it with the other programs: we test one after the other,
until it succeeds. So it is perfect to have a second entry for awk in
tramp-remote-coding-commands.
> Would it be OK to have two different variables, and two tests for
> od+awk and hexdump+awk?
>
> tramp-od-awk-coding-test
> tramp-od-awk-{encode,decode}
>
> tramp-hexdump-awk-coding-test
> tramp-hexdump-awk-{encode-decode}
Well, decoding does not use od. So it might be sufficient to have
tramp-od-awk-coding-test
tramp-od-awk-encode
tramp-hexdump-awk-coding-test
tramp-hexdump-awk-encode
tramp-awk-decode}
>> > What happened is that (rem-enc ...) failed (because tramp could not use
>> > any encoding command), and fell through into the default action, which
>> > is this error.
>>
>> Maybe we should enhance the error message.
>
> Perhaps
>
> (tramp-error v 'file-error "Cannot find any way to encode data using
> `%s'" method)
>
> would be more precise?
>
> Or, if (tramp-local-host-p v) (tramp-method-out-of-band-p v size) are
> false, explicitly write that "encoding binaries were not found on the
> remote end"?
Yes, something like this. Do you want to prepare such a patch (which
should also include the tramp.texi changes)?
Hmm, looks like this could extend the 15 lines limit, which is the upper
limit for contributions to Emacs/Tramp, w/o having signed the FSF legal
papers (where you declare the copyright of your work be given to the
FSF). Would you like to sign such a paper? It would help also for future
contributions to Emacs or one of its packages.
> J.
Best regards, Michael.
next prev parent reply other threads:[~2019-05-09 12:05 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-08 16:25 bug#35639: 27.0.50; tramp fails to use ssh on LibreCMC (no base64 encoder available, and not mentioned in tramp manual) Jeronimo Pellegrini
2019-05-08 18:29 ` Michael Albinus
2019-05-08 23:01 ` Jeronimo Pellegrini
2019-05-09 7:35 ` Michael Albinus
2019-05-09 10:19 ` Jeronimo Pellegrini
2019-05-09 12:05 ` Michael Albinus [this message]
2019-05-09 12:37 ` Jeronimo Pellegrini
2019-05-09 12:45 ` Michael Albinus
2019-05-09 19:52 ` Jeronimo Pellegrini
2019-05-09 20:02 ` Michael Albinus
2019-05-09 20:11 ` Jeronimo Pellegrini
2019-05-10 8:40 ` Michael Albinus
2019-05-10 9:07 ` Robert Pluim
2019-05-10 9:17 ` Michael Albinus
2019-05-10 9:49 ` Jeronimo Pellegrini
2019-05-10 10:18 ` Michael Albinus
2019-05-10 14:45 ` Jeronimo Pellegrini
2019-05-11 1:57 ` Jeronimo Pellegrini
2019-05-12 8:43 ` Michael Albinus
2019-05-17 19:00 ` Jeronimo Pellegrini
2019-05-18 7:46 ` Michael Albinus
2019-10-11 13:14 ` Michael Albinus
2019-10-14 1:50 ` Jeronimo Pellegrini via Bug reports for GNU Emacs, the Swiss army knife of text editors
2019-10-14 7:59 ` Michael Albinus
2019-12-27 17:26 ` Michael Albinus
2019-12-27 18:42 ` Eli Zaretskii
2019-12-30 13:12 ` Jeronimo Pellegrini
2020-01-01 9:28 ` Michael Albinus
2020-01-01 15:39 ` Jeronimo Pellegrini via Bug reports for GNU Emacs, the Swiss army knife of text editors
2020-01-09 12:58 ` Michael Albinus
2020-01-11 13:07 ` Jeronimo Pellegrini via Bug reports for GNU Emacs, the Swiss army knife of text editors
2020-01-11 13:23 ` Michael Albinus
2020-01-16 20:09 ` Jeronimo Pellegrini via Bug reports for GNU Emacs, the Swiss army knife of text editors
2020-01-16 20:23 ` Michael Albinus
2019-10-15 2:38 ` Richard Stallman
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