No path completion on Cygwin mounts?

No path completion on Cygwin mounts?

[Jason Tiller]

Hi, All, :)

My recent upgrade to a decent computer has made it feasible to try Zsh
again.  As I'm using Cygwin for my *nix environment, everything is
*much* slower than on a true *nix box, so my old PIII-700 laptop just
couldn't cut it.  The new 2.0GHz P4M laptop runs Zsh (with some
bells/whistles) reasonably well.

However, I'm having trouble getting pathname completion to work on
Cygwin mounts.  Here's my Cygwin mount table:

<snip>
64 12:27 ~
$ mount
C:\cygwin\usr\X11R6\lib\X11\fonts on /usr/X11R6/lib/X11/fonts type system (binmode)
C:\cygwin\bin on /usr/bin type user (binmode)
C:\cygwin\lib on /usr/lib type user (binmode)
C:\cygwin on / type user (binmode)
c: on /c type system (textmode)
h: on /h type system (binmode,noexec)
o: on /o type system (binmode,noexec)
q: on /q type system (binmode,noexec)
t: on /t type system (binmode,noexec)
v: on /v type system (binmode,noexec)
d: on /cygdrive/d type user (binmode,noumount)
m: on /cygdrive/m type user (binmode,noumount)
n: on /cygdrive/n type user (binmode,noumount)
p: on /cygdrive/p type user (binmode,noumount)
r: on /cygdrive/r type user (binmode,noumount)
w: on /cygdrive/w type user (binmode,noumount)
x: on /cygdrive/x type user (binmode,noumount)
y: on /cygdrive/y type user (binmode,noumount)
z: on /cygdrive/z type user (binmode,noumount)
</snip>

The problem comes when I try to complete a path on the mount point and
my CWD is on another mount.  For example:

<snip>
67 12:32 /h
$ pwd
/h

68 12:35 /h
$ cd /c/te<tab>
</snip>

Given my completion options, the <tab> *should* have completed to
'/c/temp/', because the C:\temp directory definitely exists.

The strange thing is that when I actually cd to the mount (so my CWD
is on the mount), then completion works fine.  This works as expected:

<snip>
72 12:37 /h
$ cd /c

73 12:37 /c
$ cd te<tab>

73 12:37 /c
$ cd temp

74 12:37 /c/temp
$
</snip>

(I mangled the screen capture a little bit on #73 to show the process
of <tab> completion.)

Does this make sense to anyone?  Any ideas why this might be
happening?

The only configuration settings I have are in /etc/zshenv, and here it
is:

<snip>
76 12:39 /etc
$ cat zshenv
# Called very first in the zsh startup process.

echo "This is /etc/zshenv"

export PS1='
%! %T %B%~%b
$ '

# Hack up the path.
export PATH="$(/usr/bin/perl ~/perl/fixpath3.pl)"

# Configure the zsh completion system.
autoload -U compinit
compinit

# Set some of my options.
setopt CDABLE_VARS
setopt AUTO_CD  # Like 4DOS 'cd' without 'cd'! - *yes*!!
setopt EXTENDED_GLOB  # Cool stuff.

# Make completion and file stuff insensitive.  Wow, I have no idea how
# this works.
zstyle ":completion:*" matcher-list 'm:{A-Za-z}={a-zA-Z}'

# Map backspace to 'erase' (backspace).
[[ "$TERM" == "xterm" || "$TERM" == "rxvt" ]] && stty erase '^?'

# Modify 'less' to be:
# -i: case insensitive unless search is for mixed case
# -F: Quit if less than one screen full.
# -M: use a prompt that has more detail about the file
# -X: don't reset the terminal before and after running.  This will
#     keep the last data displayed by less on the screen after quitting.
# -S: chop long lines so they don't wrap incessantly
# # 8: Change the horizontal scroll increment to be 8 columns
#alias less='less -iFMSX# 8'
export LESS="-iFMSX# 8"

# Called by zsh when the CWD is changed.  OLDPWD is the directory
# we're leaving.
chpwd() {
   if [[ ( $OLDPWD == /? ) || ( $OLDPWD == /?/* ) ]] then
      # Take the 2nd character
      drive=$OLDPWD[2]
      eval "p$drive=\"$OLDPWD\"";
   fi
}
</snip>

Thanks a lot for any help!

---Jason
St. Jude Medical

Re: No path completion on Cygwin mounts?

[Peter Stephenson]

Jason Tiller wrote:
> However, I'm having trouble getting pathname completion to work on
> Cygwin mounts.

I'm afraid I haven't been able to get it to fail (I'm using 4.1.1).
None of your settings look weird.

-- 
Peter Stephenson <pws@csr.com>                  Software Engineer
CSR Ltd., Science Park, Milton Road,
Cambridge, CB4 0WH, UK                          Tel: +44 (0)1223 692070


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Re: No path completion on Cygwin mounts?

[Jason Tiller]

Hi, Peter, :)

On Fri, 25 Jul 2003, Peter Stephenson wrote:
> Jason Tiller wrote:

> > However, I'm having trouble getting pathname completion to work on
> > Cygwin mounts.

> I'm afraid I haven't been able to get it to fail (I'm using 4.1.1).
> None of your settings look weird.

Well, I did a little work myself and discovered pretty rapidly that
the issue is the 'compinit' call in my zshenv.  I began walking
through my startup file and when I started a shell that didn't make
the call to 'compinit', then my completion worked fine (once I
realized it was case-sensitive!).

However, with a little more investigation, it seems that my call to
'zstyle' also affected the completion.

Here are the lines from zshenv in question:

<snip>
# Configure the zsh completion system.
autoload -U compinit
compinit

# Set some of my options.
setopt CDABLE_VARS
setopt AUTO_CD  # Like 4DOS 'cd' without 'cd'! - *yes*!!
setopt EXTENDED_GLOB  # Cool stuff.

# Make completion and file stuff insensitive.  Wow, I have no idea how
# this works.
zstyle ":completion:*" matcher-list 'm:{A-Za-z}={a-zA-Z}'
</snip>

If I just comment-out the 'compinit' line and the 'zstyle' line, then
completion works as I would expect, regardless of the mount.

Any idea what might be happening here?  BTW, this is Zsh 4.0.6
compiled for Cygwin, in case it wasn't obvious.

Thanks!

---Jason