Mail Archives: cygwin/2004/06/17/17:09:24
> From: bertrand marquis
> Sent: Thursday, June 17, 2004 4:26 PM
Comments inline below...
> Luc Hermitte a écrit:
>
> >Hello,
> >
> >* On Thu, Jun 17, 2004 at 11:12:00AM +0200, bertrand marquis
> <bertrand_marquis AT yahoo DOT fr> wrote:
> >
> >
> >> i need to be able to find where cygwin is install from a .bat script
> >>under windows to run cygwin programs.
> >>Does anyone has a solution to do that automaticaly ?
> >>
> >>
> >
> > cygpath -m /
> >
> I agree that is working but only if your path is set correctly and to do
> that you need to know where cygwin has been installed
>
> >
> >However, this solution requires that cygwin directories are visible from
> >your $PATH. In other words, you won't really need to know where they are
> >installed.
> >
> >
> >
> Anyway i found a solution looking into the windows registry where this
> is writting when cygwin is installed.
> Here is an example which start an xterm.
>
> ::start of file xterm.bat
> @echo off
> SET DISPLAY=127.0.0.1:0.0
>
> REM Look for cygwin entry in windows registry
> REGEDIT /E %Temp%.\tmp-cygwin.reg "HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus
> Solutions\Cygwin\mounts v2\/"> nul
>
> REM Check if something has been found
> if not exist %Temp%.\tmp-cygwin.reg goto EXITNOCYGWIN
>
> REM Get the native key from windows registry result
> FOR /F "tokens=1* delims==" %%A IN ('TYPE %Temp%.\tmp-cygwin.reg ^| FIND
> "native"') DO SET CYGWIN_ROOT=%%B> nul
>
> REM Remove quotes
> SET CYGWIN_ROOT=%CYGWIN_ROOT:"=%> nul
>
> REM Remove temporary file
> if exist %Temp%.\tmp-cygwin.reg del %Temp%.\tmp-cygwin.reg
>
> REM Check if we have found something
> if "%CYGWIN_ROOT%" == "" goto EXITNOCYGWIN
>
> REM Export Cygwin path
> SET
> PATH=.;%CYGWIN_ROOT%\bin;%CYGWIN_ROOT%\usr\X11R6\bin;%CYGWIN_ROOT%
> \opt\elinos\bin;%PATH%
>
> run xterm
>
> exit
>
> :EXITNOCYGWIN
> echo no cygwin entry has been found in registry
> pause
>
> ::end of file
Another way is to dynamically create a bat script that redefines
"CYGWIN_ROOT". e.g.
$ cat mkrtbat.sh
#!/bin/bash
echo -e >$(cygpath -u "c:\rt.bat") "set root=$(cygpath -m /)\n\r"
--
Then use "call C:\rt" in any bat script to get the ROOT variable set.
(Hmm... I tried to set "-quotes for root's value, but that creates problems
in bat scripts :-7 )
This ofcourse requires _one_ run of the above
to take note of any changes.
>
> I only have two questions left:
> - is HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2
> always the place where i can find the mounts in the registry
>
> - is there a way to check that there is actually a X server running on
> 127.0.0.1 from a windows script. As this if there isn't i could start one.
Check the output of
$ ps
before and after you've run "startx &". To give you the an idea;
$ ps | grep 'X11' | wc -l
2
$ ps | grep 'X11'
1880 1680 1680 1588 0 500 20:35:54 /usr/X11R6/bin/xinit
1296 1880 1296 2444 0 500 20:35:54 /usr/X11R6/bin/XWin
Hmm... you'd better check your setup. I seem to have some kind of trouble
with my installation. There seems to be a dual start of "XWin" - leading to
a deadlock <sigh>...
I haven't noticed this before, I hardly use X at all.
/Hannu E K Nevalainen, B.Sc. EE - 59+16.37'N, 17+12.60'E --76-->
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