--- Begin Message ---
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Subject: |
26.1; Bash 5.0 breaks TRAMP sudo |
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Date: |
Thu, 24 Jan 2019 22:14:51 +0000 |
I believe Bash 5.0 breaks TRAMP sudo in
tramp-sh-handle-file-name-all-completions.
Using Bash 5.0 and (find-file "/sudo::/") results in an error "Process
has died". Setting tramp-verbose to 9 shows that it dies around here:
13:56:22.449785 tramp-maybe-send-script (5) # Sending script
‘tramp_perl_file_name_all_completions’...
13:56:22.449920 tramp-send-command (6) #
tramp_perl_file_name_all_completions () {
\perl -e '
opendir(d, $ARGV[0]) || die("$ARGV[0]: $!\nfail\n");
@files = readdir(d); closedir(d);
foreach $f (@files) {
if (-d "$ARGV[0]/$f") {
print "$f/\n";
}
else {
print "$f\n";
}
}
print "ok\n"
' "$1" 2>/dev/null
} 2>/dev/null; echo tramp_exit_status $?
13:56:25.428280 tramp-maybe-send-script (5) # Sending script
‘tramp_perl_file_name_all_completions’...failed
Note that I cannot reproduce this from emacs -Q because out of the box,
TRAMP sudo does not seem to call
tramp-sh-handle-file-name-all-completions and I don't have time right
now to figure out what setting enables that code path.
Switching my /bin/sh to Dash instead of Bash 5.0 immediately fixed the
problem, which strongly led me to suspect some subtle change in Bash 5.0
broke this.
In GNU Emacs 26.1 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.22.30)
of 2018-07-05 built on juergen
Windowing system distributor 'The X.Org Foundation', version 11.0.12003000
Configured using:
'configure --prefix=/usr --sysconfdir=/etc --libexecdir=/usr/lib
--localstatedir=/var --with-x-toolkit=gtk3 --with-xft --with-modules
'CFLAGS=-march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong
-fno-plt' CPPFLAGS=-D_FORTIFY_SOURCE=2
LDFLAGS=-Wl,-O1,--sort-common,--as-needed,-z,relro,-z,now'
Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GSETTINGS NOTIFY
ACL GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS
GTK3 X11 MODULES THREADS LIBSYSTEMD LCMS2
Important settings:
value of $LANG: en_US.UTF-8
locale-coding-system: utf-8-unix
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--- Begin Message ---
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Subject: |
Re: bug#34192: 26.1; Bash 5.0 breaks TRAMP sudo |
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Date: |
Thu, 21 Feb 2019 12:20:15 +0100 |
|
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) |
Emacs 26.2
Hi Allen,
> I've got an answer from the bash maintainer. He confirms the problem,
> and he has sent also a patch. I've tested the patch; it fixes the
> problem in my environment with bash 5.0.
>
> Will forward that message. So we have to wait for a new bash 5.0.x
> version which fixes this. In the meantime, I'll write a warning in the
> Tramp doc.
I've documented this in the Tramp manual, pushed to the emacs-26
branch. Since there's nothing left on Emacs side we could do, I'm
closing the bug.
Best regards, Michael.
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