Forum Debian Users Gang

try_run()
{
    absolute=0
    if [ "$1" = "-absolute" ]; then
      absolute=1
      shift
    fi

    fatal=0
    # older bash < 2.* don't like == operator, using =
    if [ "$1" = "-fatal" ]; then
      # got fatal
      fatal=1
      shift
    fi

    setup=$1
    shift

    # First find the binary we want to run
    failed=0
    if [ "$absolute" -eq 0 ]
    then
      setup_bin="setup.data/bin/$os/$arch/$libc/$setup"
      # trying $setup_bin
      if [ ! -f "$setup_bin" ]; then
          setup_bin="setup.data/bin/$os/$arch/$setup"
                # libc dependant version failed, trying again
          if [ ! -f "$setup_bin" ]; then
              failed=1
          fi
      fi
      if [ "$failed" -eq 1 ]; then
          if [ "$fatal" -eq 1 ]; then
              cat <<__EOF__
This installation doesn't support $libc on $os / $arch
(tried to run $setup)
$FATAL_ERROR
__EOF__
          fi
          return $failed
      fi

      # Try to run the binary ($setup_bin)
      # The executable is here but we can't execute it from CD
      # NOTE TTimo: this is dangerous, we also use $setup to store the name of the try_run
      setup="$HOME/.setup$$"
      rm -f "$setup"
      cp "$setup_bin" "$setup"
      chmod 700 "$setup"
    fi
    if [ "$fatal" -eq 0 ]; then
        "$setup" "$@"
        failed="$?"
    else
        "$setup" "$@" 2>/dev/null
        failed="$?"
    fi
    if [ "$absolute" -eq 0 ]
    then
      # don't attempt removal when we are passed an absolute path
      # no, I don't want to imagine a faulty try_run as root on /bin/su
      rm -f "$setup"
    fi
    return "$failed"
}