scripting/wrapper.sh

   1 #! /bin/sh
   2 #
   3 # wrapper.sh
   4 #
   5 #-------------------------------------------------------------------------------
   6 # Copyright (C) 2004, 2005, 2006 Sylvain Fourmanoit <syfou@users.sourceforge.net>
   7 #
   8 # Permission is hereby granted, free of charge, to any person obtaining a copy
   9 # of this software and associated documentation files (the "Software"), to
  10 # deal in the Software without restriction, including without limitation the
  11 # rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
  12 # sell copies of the Software, and to permit persons to whom the Software is
  13 # furnished to do so, subject to the following conditions:
  14 #
  15 # The above copyright notice and this permission notice shall be included in
  16 # all copies of the Software and its documentation and acknowledgment shall be
  17 # given in the documentation and software packages that this Software was
  18 # used.
  19 #
  20 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  21 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  22 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  23 # THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
  24 # IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  25 # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  26 #
  27 #-------------------------------------------------------------------------------
  28 # Wrapper script between Makefile and other scripts. Usage:
  29 #
  30 # ./wrapper.sh my_script out_file
  31 #
  32 # Redirect my_script stdout to out_file. If script fails, remove out_file.
  33 # If script is not in current working directory, script name need to be
  34 # absolute. Always echo script exit status, and duplicate script stdout on
  35 # ./wrapper.sh' stderr
  36 #
  37 #-------------------------------------------------------------------------------
  38 if test "x$1" != "x" ; then
  39     if test "x$2" != "x" ; then
  40         SCRIPT=`echo "$1" | sed '/^\//!s/^/\.\//'`
  41         if test -x "$SCRIPT" ; then
  42             if ! eval "$SCRIPT" | (
  43                     # This is a 'tee' emulator: demux the command output
  44                     # both on stdout and stderr
  45                     while read LINE; do
  46                         echo "$LINE"
  47                         echo "$LINE" 1>&2
  48                     done
  49                 ) >$2; then
  50                 rm -f $2 2> /dev/null
  51                 exit 1
  52             fi
  53         else
  54             echo "could not execute script '$SCRIPT'" 1>&2
  55             exit 1
  56         fi
  57     else
  58         echo "output file name not given" 1>&2
  59         exit 1
  60     fi
  61 else
  62     echo "script name not given" 1>&2
  63     exit 1
  64 fi