Problem with zip completion

Problem with zip completion

[Vincent Lefevre]

With the standard zip completion function (under zsh 4.0.2), when I type

  zip blah.zip file[TAB]

filename completion works, but when I type

  zip -r blah.zip file[TAB]

it doesn't work any longer. Does anyone have a better completion
function for zip?

-- 
Vincent Lefèvre <vincent@vinc17.org> - Web: <http://www.vinc17.org/> - 100%
validated HTML - Acorn Risc PC, Yellow Pig 17, Championnat International des
Jeux Mathématiques et Logiques, TETRHEX, etc.
Work: CR INRIA - computer arithmetic / SPACES project at LORIA

Re: Problem with zip completion

[Bart Schaefer]

On Oct 17,  4:47pm, Vincent Lefevre wrote:
} Subject: Problem with zip completion
}
} With the standard zip completion function (under zsh 4.0.2), when I type
} 
}   zip blah.zip file[TAB]
} 
} filename completion works, but when I type
} 
}   zip -r blah.zip file[TAB]
} 
} it doesn't work any longer. Does anyone have a better completion
} function for zip?

Hm.  Completion/Unix/Command/_zip thinks that -R is the option for
recursing into subdirectories, but zip 2.1 and 2.3 (as distributed
by RedHat) use -r, and 2.3 says -R is "PKZIP recursion."  Also, the
_zip function thinks `zip -e' will encrypt, but zip 2.3 doesn't have
that option on my system.

Oliver, it looks like you wrote the _zip function, posted in 13600.
On which version of zip did you base it?

Meanwhile, Vincent, as a temporary fix, edit _zip and replace -R with
-r in what should be the obvious place near the top of the function.

-- 
Bart Schaefer                                 Brass Lantern Enterprises
http://www.well.com/user/barts              http://www.brasslantern.com

Zsh: http://www.zsh.org | PHPerl Project: http://phperl.sourceforge.net   

Re: Problem with zip completion

[Oliver Kiddle]

Bart Schaefer wrote:
> 
> Also, the
> _zip function thinks `zip -e' will encrypt, but zip 2.3 doesn't have
> that option on my system.

I'm fairly certain that for encryption, you need to download some
separate patches from a different server which depends on whether you're
in the US or not. I went to the trouble of doing that when I compiled it
on IRIX several years ago. It may have all changed by now though.

> Oliver, it looks like you wrote the _zip function, posted in 13600.
> On which version of zip did you base it?

I always get the latest before writing these so I will have had 2.3. I
know in this case that I looked at several other versions for reference.
I also remember there being more than a few differences between versions
and I may have left something out either intentionally or accidentally.
I suggest Clint's patch is applied for now but I'll go back and look at
_zip in detail again sometime soon incase there are other omissions.

Oliver

Re: Problem with zip completion

[Vincent Lefevre]

[back to zsh-users]

Thanks for the patch. But when I try to use patch, I get the following:

greux:~/software/zsh-4.0.2> patch < ../zsh-zip-patch                  <18:09:13
can't find file to patch at input line 8
Perhaps you should have used the -p or --strip option?
The text leading up to this was:
--------------------------
|Index: Completion/Unix/Command/_zip
|===================================================================
|RCS file: /cvsroot/zsh/zsh/Completion/Unix/Command/_zip,v
|retrieving revision 1.2
|diff -u -r1.2 _zip
|--- Completion/Unix/Command/_zip       2001/08/14 16:23:42     1.2
|+++ Completion/Unix/Command/_zip       2001/10/17 15:12:15
--------------------------
File to patch:

and I have to give the filename. Why couldn't patch find it?
What option should I use (the -p<num> options don't do anything)?

Moreover, why did I need to delete the .zcompdump file? Otherwise,
I had the following errors when execing zsh:

/users/spaces/lefevre/.zcompdump:487: command not found: ^[]1
/users/spaces/lefevre/.zcompdump:487: command not found: greux:~^G^[]2
/users/spaces/lefevre/.zcompdump:487: bad pattern: [1

This may come from:

precmd()
{
  psvar[1]=$#jobstates;
  if [[ $psvar[1] -eq 0 ]] then
    psvar[1]=()
  elif [[ $psvar[1] -eq 1 ]] then
    psvar[1]="$psvar[1] job"
  else
    psvar[1]="$psvar[1] jobs"
  fi
  # Note: STY is set by screen
  if [[ $TERM == (xterm*|dtterm|rxvt) && -z $STY ]] then
    print -nP "\e]1;%m:%.\x07"
    print -nP "\e]2;%(1v. [%1v] .)${WINTITLE:+ [$WINTITLE]} %n@%m - %~ \x07"
  fi
}

In .zcompdump:

[...]
_compautos=(
_call_program +X
)

ESC]1;greux:~^GESC]2; [1 job]  lefevre@greux - ~ ^Gzle -C _bash_complete-word .complete-word _bash_completions
zle -C _bash_list-choices .list-choices _bash_completions
zle -C _complete_debug .complete-word _complete_debug
zle -C _complete_help .complete-word _complete_help
zle -C _complete_tag .complete-word _complete_tag
zle -C _correct_filename .complete-word _correct_filename
zle -C _correct_word .complete-word _correct_word
zle -C _expand_alias .complete-word _expand_alias
zle -C _expand_word .complete-word _expand_word
zle -C _history-complete-newer .complete-word _history_complete_word
zle -C _history-complete-older .complete-word _history_complete_word
zle -C _list_expansions .list-choices _expand_word
zle -C _most_recent_file .complete-word _most_recent_file
zle -C _next_tags .complete-word _next_tags
zle -C _read_comp .complete-word _read_comp
ESC]1;greux:~^GESC]2; [1 job]  lefevre@greux - ~ ^Gbindkey '^X^R' _read_comp
bindkey '^X?' _complete_debug
bindkey '^XC' _correct_filename
[...]

-- 
Vincent Lefèvre <vincent@vinc17.org> - Web: <http://www.vinc17.org/> - 100%
validated HTML - Acorn Risc PC, Yellow Pig 17, Championnat International des
Jeux Mathématiques et Logiques, TETRHEX, etc.
Work: CR INRIA - computer arithmetic / SPACES project at LORIA

Re: Problem with zip completion

[Bart Schaefer]

On Oct 17,  6:21pm, Vincent Lefevre wrote:
}
} Why couldn't patch find it?
} What option should I use (the -p<num> options don't do anything)?

You probably needed -p0 to tell it not to strip off any path components
at all.

} Moreover, why did I need to delete the .zcompdump file?

That one I can't tell you.  It sure looks like you got some stray output
written into the .zcompdump file.  Do you perhaps have a preexec that
emits something to stdout?  Unlike precmd, which executes only when a
prompt is printed, preexec executes before *every* top-level command,
even when running shell scripts.

-- 
Bart Schaefer                                 Brass Lantern Enterprises
http://www.well.com/user/barts              http://www.brasslantern.com

Zsh: http://www.zsh.org | PHPerl Project: http://phperl.sourceforge.net   

Re: Problem with zip completion

[Vincent Lefevre]

On Wed, Oct 17, 2001 at 16:49:32 +0000, Bart Schaefer wrote:
> You probably needed -p0 to tell it not to strip off any path components
> at all.

Hmm... yes, I forgot that one. A bit tired... :( Thanks.

> That one I can't tell you.  It sure looks like you got some stray output
> written into the .zcompdump file.  Do you perhaps have a preexec that
> emits something to stdout?  Unlike precmd, which executes only when a
> prompt is printed, preexec executes before *every* top-level command,
> even when running shell scripts.

No, I have no preexec function. These lines come from the precmd
function. I also have:

  TRAPCLD() { precmd }

If I replace it by

  TRAPCLD() { precmd > $TTY }

this solves the problem. Is it the right thing to do?

-- 
Vincent Lefèvre <vincent@vinc17.org> - Web: <http://www.vinc17.org/> - 100%
validated HTML - Acorn Risc PC, Yellow Pig 17, Championnat International des
Jeux Mathématiques et Logiques, TETRHEX, etc.
Work: CR INRIA - computer arithmetic / SPACES project at LORIA

Re: Problem with zip completion

[Bart Schaefer]

On Oct 17,  7:11pm, Vincent Lefevre wrote:
}
} If I replace it by
} 
}   TRAPCLD() { precmd > $TTY }
} 
} this solves the problem. Is it the right thing to do?

Almost certainly.

Re: Problem with zip completion

[Bart Schaefer]

On Oct 17,  5:24pm, Bart Schaefer wrote:
}
} On Oct 17,  7:11pm, Vincent Lefevre wrote:
} }
} }   TRAPCLD() { precmd > $TTY }
} } 
} } this solves the problem. Is it the right thing to do?
} 
} Almost certainly.

Actually, having given it a moment's more thought, it would probably be
better to use

	TRAPCLD() { [[ -t 0 ]] && precmd }

or even

	TRAPCLD() { [[ -o interactive && -t 0 ]] && precmd }

Re: Problem with zip completion

[Vincent Lefevre]

On Wed, Oct 17, 2001 at 17:44:46 +0000, Bart Schaefer wrote:
> Actually, having given it a moment's more thought, it would probably be
> better to use
> 
> 	TRAPCLD() { [[ -t 0 ]] && precmd }
> 
> or even
> 
> 	TRAPCLD() { [[ -o interactive && -t 0 ]] && precmd }

Why? If TRAPCLD is called when stdout is redirected (thus, not necessarily
attached to a tty), I still want to be able to write to the tty (here, to
change the terminal title).

-- 
Vincent Lefèvre <vincent@vinc17.org> - Web: <http://www.vinc17.org/> - 100%
validated HTML - Acorn Risc PC, Yellow Pig 17, Championnat International des
Jeux Mathématiques et Logiques, TETRHEX, etc.
Work: CR INRIA - computer arithmetic / SPACES project at LORIA

Re: Problem with zip completion

[Bart Schaefer]

On Oct 18,  1:15am, Vincent Lefevre wrote:
> Subject: Re: Problem with zip completion
> On Wed, Oct 17, 2001 at 17:44:46 +0000, Bart Schaefer wrote:
> > Actually, having given it a moment's more thought, it would probably be
> > better to use
> > 
> > 	TRAPCLD() { [[ -t 0 ]] && precmd }
> > 
> > or even
> > 
> > 	TRAPCLD() { [[ -o interactive && -t 0 ]] && precmd }
> 
> Why? If TRAPCLD is called when stdout is redirected (thus, not necessarily
> attached to a tty), I still want to be able to write to the tty (here, to
> change the terminal title).

It depends on where and how you're defining the TRAPCLD function, I guess.
My assumption would be that if stdout is redirected, then the child that's
exiting must not be a child of the top-level interactive shell, and thus
changing the terminal title would at best be a waste of effort.

Remember, it's the stdout of the *parent* of the exiting job that we're
testing here.

Re: Problem with zip completion

[Vincent Lefevre]

On Wed, Oct 17, 2001 at 17:57:57 -0700, Bart Schaefer wrote:
> My assumption would be that if stdout is redirected, then the child that's
> exiting must not be a child of the top-level interactive shell, and thus
> changing the terminal title would at best be a waste of effort.

Well, maybe. I thought that stdout (of the top-level shell) could be
temporarily redirected with some obscure builtins I didn't know.

Now, I've chosen: TRAPCLD() { [[ -o interactive && -t 0 ]] && precmd }

-- 
Vincent Lefèvre <vincent@vinc17.org> - Web: <http://www.vinc17.org/> - 100%
validated HTML - Acorn Risc PC, Yellow Pig 17, Championnat International des
Jeux Mathématiques et Logiques, TETRHEX, etc.
Work: CR INRIA - computer arithmetic / SPACES project at LORIA

Re: Problem with zip completion

[Sweth Chandramouli]

On Thu, Oct 18, 2001 at 04:13:55AM +0200, Vincent Lefevre wrote:
> On Wed, Oct 17, 2001 at 17:57:57 -0700, Bart Schaefer wrote:
> > My assumption would be that if stdout is redirected, then the child that's
> > exiting must not be a child of the top-level interactive shell, and thus
> > changing the terminal title would at best be a waste of effort.
> 
> Well, maybe. I thought that stdout (of the top-level shell) could be
> temporarily redirected with some obscure builtins I didn't know.
	No need for obscure builtins; standard redirection can
always be applied to the current shell via exec:

$ exec > /tmp/file
$ ls
$ exec > /dev/tty
$ ls
file1 file2 file3
$ cat /tmp/file
file1
file2
file3

	.  I'm not sure why you'd want to do that in an interactive
shell, though.

	-- Sweth.

-- 
Sweth Chandramouli ; <svc@idiopathic.net>
President, Idiopathic Systems Consulting

Re: Problem with zip completion

[Vincent Lefevre]

On Thu, Oct 18, 2001 at 00:46:59 -0400, Sweth Chandramouli wrote:
> 	.  I'm not sure why you'd want to do that in an interactive
> shell, though.

Perhaps to have something like that, to write information about the
current shell to a file?

testfct () {
        exec >| /tmp/file
        echo "setopt:"
        setopt
        echo "unsetopt:"
        unsetopt
        echo "jobs:"
        jobs
        exec > /dev/tty
}

I think I'll take

TRAPCLD () { [[ -o interactive && -n $TTY ]] && precmd > $TTY }

-- 
Vincent Lefèvre <vincent@vinc17.org> - Web: <http://www.vinc17.org/> - 100%
validated HTML - Acorn Risc PC, Yellow Pig 17, Championnat International des
Jeux Mathématiques et Logiques, TETRHEX, etc.
Work: CR INRIA - computer arithmetic / SPACES project at LORIA