bug#20821: 24.5; ido-mode autocompletion failure aborts find-file when attempting to use tramp

bug#20821: 24.5; ido-mode autocompletion failure aborts find-file when attempting to use tramp

[db48x]

I've got ido-mode enabled, and I'm trying to open a file on another
machine with TRAMP. This machine is running windows, so I'm using
plinkx. As soon as I type the @ in the filename (I'm trying to open
/plinkx:db48x@anglachel:projects/emularity/loader.js, in this case) I
get this error in the *Messages* buffer:

ido-file-name-all-completions-1: Opening directory: no such file or directory, c:/plinkx:db48x@

And here's the stack trace:

Debugger entered--Lisp error: (file-error "Opening directory" "no such file or directory" "c:/plinkx:db48x@")
  file-name-all-completions("" "/plinkx:db48x@")
  ido-file-name-all-completions-1("/plinkx:db48x@")
  ido-file-name-all-completions("/plinkx:db48x@")
  ido-make-file-list-1("/plinkx:db48x@")
  ido-make-file-list(nil)
  ido-read-internal(file "Find file: " ido-file-history nil confirm-after-completion nil)
  ido-file-internal(raise-frame)
  ido-find-file()
  call-interactively(ido-find-file nil nil)
  command-execute(ido-find-file)

I'm not sure if ido is supposed to ignore this error, or if it's calling
the wrong function, or what.




In GNU Emacs 24.5.1 (i686-pc-mingw32)
 of 2015-04-11 on LEG570
Windowing system distributor `Microsoft Corp.', version 6.1.7601
Configured using:
 `configure --prefix=/c/usr --host=i686-pc-mingw32'

Important settings:
  value of $LANG: ENU
  locale-coding-system: cp1252

Major mode: Emacs-Lisp

Minor modes in effect:
  shell-dirtrack-mode: t
  erc-services-mode: t
  erc-log-mode: t
  erc-list-mode: t
  erc-menu-mode: t
  erc-autojoin-mode: t
  erc-ring-mode: t
  erc-networks-mode: t
  erc-pcomplete-mode: t
  erc-track-mode: t
  erc-track-minor-mode: t
  erc-match-mode: t
  erc-button-mode: t
  erc-fill-mode: t
  erc-stamp-mode: t
  erc-netsplit-mode: t
  erc-irccontrols-mode: t
  erc-noncommands-mode: t
  erc-keep-place-mode: t
  erc-move-to-prompt-mode: t
  erc-readonly-mode: t
  highlight-changes-visible-mode: t
  server-mode: t
  tooltip-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent messages:
mouse-2, RET: find function's definition
Quit
Type C-x 1 to delete the help window.
ido-file-name-all-completions-1: Opening directory: no such file or directory, c:/plinkx:db48x@
Quit
Type C-x 1 to delete the help window.
Debug on Error enabled globally
Entering debugger...
Type "q" in help window to restore its previous buffer.
mouse-2, RET: find function's definition

Load-path shadows:
None found.

Features:
(shadow sort mail-extr emacsbug sendmail debug tramp-cmds vc-git
tramp-cache tramp-sh tramp tramp-compat tramp-loaddefs trampver shell
erc-truncate erc-speedbar erc-sound erc-services erc-replace erc-page
erc-notify erc-log erc-identd erc-ibuffer ibuf-ext erc-ezbounce
erc-desktop-notifications notifications dbus erc-dcc erc-capab
erc-autoaway ido-completing-read+ warnings autoload lisp-mnt mm-archive
network-stream starttls url-http tls url-gw url-cache url-auth url
url-proxy url-privacy url-expand url-methods url-history url-cookie
url-domsuf mailcap url-handlers epg finder-inf etags tutorial info-look
info help-macro help-at-pt ehelp eieio-opt ses unsafep package
epg-config newst-backend xml derived mpc ispell htmlfontify esh-var
esh-io esh-cmd esh-opt esh-ext esh-proc esh-arg eldoc esh-groups eshell
esh-module esh-mode esh-util erc-list erc-menu erc-join erc-ring
erc-networks erc-pcomplete erc-track erc-match erc-button erc-fill
erc-stamp erc-netsplit erc-goodies erc erc-backend erc-compat pp
doc-view jka-compr image-mode calculator calc calc-loaddefs calc-macs
windmove whitespace vcursor ruler-mode mule-util reveal repeat
org-protocol org org-macro org-footnote org-pcomplete pcomplete org-list
org-faces org-entities noutline outline easy-mmode org-version
ob-emacs-lisp ob ob-tangle ob-ref ob-lob ob-table ob-exp org-src ob-keys
ob-comint ob-core ob-eval org-compat org-macs org-loaddefs find-func
cal-menu calendar cal-loaddefs linum kmacro ido ibuffer hl-line
hippie-exp follow filesets filecache ffap emacs-lock dabbrev completion
bs autorevert filenotify autoinsert elec-pair cua-base two-column
ediff-wind ediff-help ediff-init desktop frameset apropos cus-theme
eieio-custom wid-browse tree-widget shadowfile ange-ftp woman man
speedbar sb-image ezimage dframe rst compile comint ansi-color rcirc
ring ps-print ps-def lpr proced mh-e mh-compat mh-acros cl-macs cl gv
mh-buffers mh-loaddefs message format-spec rfc822 mml mml-sec mm-decode
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multi-isearch browse-url url-util url-parse auth-source eieio byte-opt
bytecomp byte-compile cl-extra cl-loaddefs cl-lib cconv eieio-core
gnus-util mm-util help-fns mail-prsvr password-cache url-vars arc-mode
archive-mode help-mode easymenu server time-date tooltip electric
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loaddefs button faces cus-face macroexp files text-properties overlay
sha1 md5 base64 format env code-pages mule custom widget
hashtable-print-readable backquote make-network-process w32notify w32
multi-tty emacs)

Memory information:
((conses 8 1196167 101198)
 (symbols 32 50928 0)
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 (strings 16 151747 23960)
 (string-bytes 1 4319858)
 (vectors 8 56800)
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 (intervals 28 102001 3582)
 (buffers 508 82))

bug#20821: 24.5; ido-mode autocompletion failure aborts find-file when attempting to use tramp

[Eli Zaretskii]

> From: db48x@db48x.net
> Date: Mon, 15 Jun 2015 19:15:00 -0700
> 
> 
> I've got ido-mode enabled, and I'm trying to open a file on another
> machine with TRAMP. This machine is running windows, so I'm using
> plinkx. As soon as I type the @ in the filename (I'm trying to open
> /plinkx:db48x@anglachel:projects/emularity/loader.js, in this case) I
> get this error in the *Messages* buffer:
> 
> ido-file-name-all-completions-1: Opening directory: no such file or directory, c:/plinkx:db48x@

What is 'plinkx'?  The program's name is plink, AFAIK.

bug#20821: 24.5; ido-mode autocompletion failure aborts find-file when attempting to use tramp

[Michael Albinus]

db48x@db48x.net writes:

Hi,

[Sorry for jumping in such late; I didn't realize earlier that's about Tramp]

> I've got ido-mode enabled, and I'm trying to open a file on another
> machine with TRAMP. This machine is running windows, so I'm using
> plinkx. As soon as I type the @ in the filename (I'm trying to open
> /plinkx:db48x@anglachel:projects/emularity/loader.js, in this case) I
> get this error in the *Messages* buffer:

I do not run MS Windows, so I've tried with Ubuntu 15.10 and Emacs
24.5. My scenario:

emacs24 -Q
M-x ido-mode
C-x C-f /scp:albinus@

At this point, possible host names for completion are shown, as expected.

Could you try this scenario (using emacs -Q)?

> ido-file-name-all-completions-1: Opening directory: no such file or directory, c:/plinkx:db48x@
>
> And here's the stack trace:
>
> Debugger entered--Lisp error: (file-error "Opening directory" "no such file or directory" "c:/plinkx:db48x@")
>   file-name-all-completions("" "/plinkx:db48x@")
>   ido-file-name-all-completions-1("/plinkx:db48x@")
>
> I'm not sure if ido is supposed to ignore this error, or if it's calling
> the wrong function, or what.

Well, a file name "c:/plinkx:db48x@" looks strange. There shouldn't be
the leading drive letter. Hmm.

Best regards, Michael.

bug#20821: 24.5; ido-mode autocompletion failure aborts find-file when attempting to use tramp

[Michael Albinus]

Eli Zaretskii <eliz@gnu.org> writes:

Hi Eli,

>> ido-file-name-all-completions-1: Opening directory: no such file or
>> directory, c:/plinkx:db48x@
>
> What is 'plinkx'?  The program's name is plink, AFAIK.

"plinkx" is a special Tramp method, which uses PuTTY session names
instead of host names. See (info "(tramp) Inline methods")

Best regards, Michael.

bug#20821: 24.5; ido-mode autocompletion failure aborts find-file when attempting to use tramp

[Eli Zaretskii]

> From: Michael Albinus <michael.albinus@gmx.de>
> Cc: db48x@db48x.net,  20821@debbugs.gnu.org
> Date: Sat, 12 Dec 2015 13:03:00 +0100
> 
> >> ido-file-name-all-completions-1: Opening directory: no such file or
> >> directory, c:/plinkx:db48x@
> >
> > What is 'plinkx'?  The program's name is plink, AFAIK.
> 
> "plinkx" is a special Tramp method, which uses PuTTY session names
> instead of host names. See (info "(tramp) Inline methods")

Ah, okay.

So I've just did this in the current emacs-25 branch:

 emacs -Q
 M-x ido-mode RET
 C-x C-f /plinkx:eliz@

and sure enough, I get the same error as the OP (except in my case the
drive letter is 'd:').

Looks like ido.el assumes something about file-name-all-completions
that isn't happening on MS-Windows.  What do you get when you invoke

  (file-name-all-completions "" "/plinkx:eliz@")

?  Or does ido.el never invoke this in ido-file-name-all-completions-1
on Unix?

Let me know what other information I can provide.

bug#20821: 24.5; ido-mode autocompletion failure aborts find-file when attempting to use tramp

[Daniel Brooks]

Eli Zaretskii <eliz@gnu.org> writes:

> Looks like ido.el assumes something about file-name-all-completions
> that isn't happening on MS-Windows.  What do you get when you invoke
>
>   (file-name-all-completions "" "/plinkx:eliz@")

I'm away from my only windows machine, but I've tried it in a fresh
install in a vm. When I run this it attempts to make an FTP connection
to the host plinkx, which fails.

db48x

bug#20821: 24.5; ido-mode autocompletion failure aborts find-file when attempting to use tramp

[Michael Albinus]

Eli Zaretskii <eliz@gnu.org> writes:

> Looks like ido.el assumes something about file-name-all-completions
> that isn't happening on MS-Windows.  What do you get when you invoke
>
>   (file-name-all-completions "" "/plinkx:eliz@")
>
> ?  Or does ido.el never invoke this in ido-file-name-all-completions-1
> on Unix?
>
> Let me know what other information I can provide.

I will try to debug it myself.

Best regards, Michael.

bug#20821: 24.5; ido-mode autocompletion failure aborts find-file when attempting to use tramp

[Michael Albinus]

Daniel Brooks <db48x@db48x.net> writes:

> Eli Zaretskii <eliz@gnu.org> writes:
>
>> Looks like ido.el assumes something about file-name-all-completions
>> that isn't happening on MS-Windows.  What do you get when you invoke
>>
>>   (file-name-all-completions "" "/plinkx:eliz@")
>
> I'm away from my only windows machine, but I've tried it in a fresh
> install in a vm. When I run this it attempts to make an FTP connection
> to the host plinkx, which fails.

... which would be OK, given you have set `tramp-default-method' to "ftp".

I believe there is some interaction between Ido and Tramp which does not
fit proper. Will investigate.

> db48x

Best regards, Michael.

bug#20821: 24.5; ido-mode autocompletion failure aborts find-file when attempting to use tramp

[Michael Albinus]

Eli Zaretskii <eliz@gnu.org> writes:

> Ah, okay.
>
> So I've just did this in the current emacs-25 branch:
>
>  emacs -Q
>  M-x ido-mode RET
>  C-x C-f /plinkx:eliz@
>
> and sure enough, I get the same error as the OP (except in my case the
> drive letter is 'd:').

I've committed a patch in ido.el to the emacs-25 branch. It's a little
bit simple-minded, but everything I've tried Tramp internally, made it
much more complex, and resulted in other errors.

Pls cross-check the patch.

Best regards, Michael.

PS: the example is wrong. The plinkx method uses sessions from PuTTY, it
never honors a user name specified in the remote file name.

bug#20821: 24.5; ido-mode autocompletion failure aborts find-file when attempting to use tramp

[Eli Zaretskii]

> From: Michael Albinus <michael.albinus@gmx.de>
> Cc: db48x@db48x.net,  20821@debbugs.gnu.org
> Date: Sun, 13 Dec 2015 13:58:36 +0100
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > Ah, okay.
> >
> > So I've just did this in the current emacs-25 branch:
> >
> >  emacs -Q
> >  M-x ido-mode RET
> >  C-x C-f /plinkx:eliz@
> >
> > and sure enough, I get the same error as the OP (except in my case the
> > drive letter is 'd:').
> 
> I've committed a patch in ido.el to the emacs-25 branch. It's a little
> bit simple-minded, but everything I've tried Tramp internally, made it
> much more complex, and resulted in other errors.
> 
> Pls cross-check the patch.

Thanks, the error is no longer signaled.

> PS: the example is wrong. The plinkx method uses sessions from PuTTY, it
> never honors a user name specified in the remote file name.

Hmm... but I cannot seem to get any useful completion for session
names I have saved in PuTTY.  Whatever I type after "/plinkx:", I get
just "[No match]".  It doesn't matter if ido-mode is active or not (in
the latter case, I tried to type TAB to get some completions).  What
am I missing?

bug#20821: 24.5; ido-mode autocompletion failure aborts find-file when attempting to use tramp

[Michael Albinus]

Eli Zaretskii <eliz@gnu.org> writes:

> Thanks, the error is no longer signaled.

Thanks for the confirmation; I'll close the bug.

> Hmm... but I cannot seem to get any useful completion for session
> names I have saved in PuTTY.  Whatever I type after "/plinkx:", I get
> just "[No match]".  It doesn't matter if ido-mode is active or not (in
> the latter case, I tried to type TAB to get some completions).  What
> am I missing?

I'll check.

Best regards, Michael.