From: Thierry Volpiatto <thierry.volpiatto@gmail.com>
To: 16197@debbugs.gnu.org
Subject: bug#16197: 24.3.50; no completion on commands following "sudo" in shell and eshell
Date: Mon, 23 Dec 2013 09:36:08 +0100 [thread overview]
Message-ID: <87zjnshslj.fsf@gmail.com> (raw)
In-Reply-To: <87fvpolyuk.fsf@gmail.com>
Thierry Volpiatto <thierry.volpiatto@gmail.com> writes:
> Hi all,
> shell and eshell are not completing commands after "sudo".
>
> For eshell what is needed is a `pcomplete/sudo' function:
>
> (defun pcomplete/sudo ()
> (let ((prec (pcomplete-arg 'last -1)))
> (cond ((string= "sudo" prec)
> (while (pcomplete-here*
> (funcall pcomplete-command-completion-function)
> (pcomplete-arg 'last) t))))))
>
> For shell modify `shell-command-completion' something like this:
>
> (defun shell-command-completion ()
> "Return the completion data for the command at point, if any."
> (let ((filename (comint-match-partial-filename))
> start)
> (if (and filename
> (save-match-data (not (string-match "[~/]" filename)))
> (eq (setq start (match-beginning 0))
> (save-excursion (shell-backward-command 1)
> (if (looking-at "sudo")
> start (point)))))
> (shell--command-completion-data))))
>
However this is not enough if one wants completion on arguments entered
after the command that is after "sudo".
For this the pcomplete/sudo function should looks like this:
--8<---------------cut here---------------start------------->8---
(defun pcomplete/sudo ()
(let ((prec (pcomplete-arg 'last -1)))
(cond ((string= "sudo" prec)
(while (pcomplete-here*
(funcall pcomplete-command-completion-function)
(pcomplete-arg 'last) t)))
(t
(funcall (or (pcomplete-find-completion-function
(pcomplete-command-name))
pcomplete-default-completion-function))))))
--8<---------------cut here---------------end--------------->8---
However it still not working with this definition because
`pcomplete-command-name' is bad defined, thus it is crashing emacs
maybe because it sometimes try to do (file-name-nondirectory nil).
(Haven't debugged this yet).
So the function should be redefined something like this:
--8<---------------cut here---------------start------------->8---
(defun pcomplete-command-name ()
"Return the command name of the first argument."
(let ((com (pcomplete-arg 'first))
(com1 (pcomplete-arg 'first 1))
(com2 (pcomplete-arg 'last -1))
(com3 (pcomplete-arg 'last)))
(cond ((and (stringp com) (stringp com1)
(not (string= com1 ""))
(string= com "sudo"))
(file-name-nondirectory com1))
((and (stringp com2) (string= com2 "sudo")
(not (string= com3 "")))
(file-name-nondirectory com3))
(t
(file-name-nondirectory com)))))
--8<---------------cut here---------------end--------------->8---
With this I have completion on arguments of commands entered after
"sudo" (only in eshell though, not shell for the moment) and emacs is
not crashing when hitting TAB.
--
Thierry
Get my Gnupg key:
gpg --keyserver pgp.mit.edu --recv-keys 59F29997
next prev parent reply other threads:[~2013-12-23 8:36 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-20 8:18 bug#16197: 24.3.50; no completion on commands following "sudo" in shell and eshell Thierry Volpiatto
2013-12-23 8:36 ` Thierry Volpiatto [this message]
2013-12-23 10:21 ` Thierry Volpiatto
2013-12-24 6:59 ` Thierry Volpiatto
2013-12-24 10:49 ` Thierry Volpiatto
2014-01-03 22:53 ` Stefan Monnier
2014-01-04 5:33 ` Thierry Volpiatto
2014-01-04 7:11 ` Thierry Volpiatto
2014-01-04 20:26 ` Stefan Monnier
2014-01-05 7:35 ` Thierry Volpiatto
2020-09-25 17:51 ` Stefan Monnier
2020-09-26 13:09 ` Lars Ingebrigtsen
2020-09-26 22:17 ` Stefan Monnier
2020-09-27 12:08 ` Lars Ingebrigtsen
2020-09-28 2:07 ` Stefan Monnier
2020-09-28 11:12 ` Lars Ingebrigtsen
2014-01-07 13:11 ` Thierry Volpiatto
2020-09-25 10:44 ` Lars Ingebrigtsen
2014-01-07 15:26 ` Thierry Volpiatto
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