'cygcheck -f' pattern syntax.

Oleksandr Gavenko gavenko@bifit.com.ua
Thu Sep 22 14:58:00 GMT 2011


   $ time cygcheck -f 'stdio.h'
real	0m1.016s
user	0m0.031s
sys	0m0.015s
   $ time cygcheck -f '*stdio.h'
   $ time cygcheck -f '*stdio.h'
   $ time cygcheck -f '*stdio.h'
   $ time cygcheck -f  /usr/include/stdio.h
cygwin-1.7.9-1

real	0m0.907s
user	0m0.015s
sys	0m0.031s

So 'cygcheck -f' does not allow 'glob' and 'regex'.

I write simple script that allow use regex:

   #!/bin/sh

   regex=$(echo "$1" | sed -e 's|\\|&&|g' -e 's|=|\\=|g')

   for file in /etc/setup/*.lst.gz; do
     name=${file#/etc/setup/}
     name=${name%.lst.gz}
     gzip -d -c $file | sed -n "\=$regex={s=^=$name: /=;p;}"
   done

But this script is extremely slow:

   $ time ./cygsearch.sh 'bin/emacs'
emacs: /usr/bin/emacs-nox.exe
emacs: /usr/bin/emacs.ico
emacs: /usr/bin/emacsclient.exe
emacs-X11: /usr/bin/emacs-X11.exe

real	0m38.797s
user	0m44.620s
sys	0m25.574s


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