cs-config

#!/bin/sh

if [ "x$MSYSTEM" = "xmsys" ] ; then
  PATH_SEPARATOR=";"
else
  PATH_SEPARATOR=":"
fi

# Poor man's (portable) 'dirname' command.
dirpart()
{
   expr "$1" : '\(..*\)[/\\].*'
}

BASE_DIR=`dirpart "$0"`
TEMP_PREFIX=/tmp/cs-config$$

# On MinGW, CRYSTAL may contain the path in one of two flavors:
# MSYS paths, separated by $PATH_SEPARATOR, or Win32 paths, separated
# by ';'. Since for the configure check we need MSYS paths, CRYSTAL
# is first treated like a Win32-style list. If that yields sensible
# results these are used subsequently. Otherwise use CRYSTAL as-is.
if test "`uname -s | sed -e 's+\(.*\)_.*+\1+'`" = "MINGW32" ; then
    NEW_CRYSTAL=''
    my_IFS=$IFS; IFS=\;
    for win32_dir in $CRYSTAL; do
        win32_dir=`echo $win32_dir | tr '\\\\' '/'  | sed "s/\(.\):/\\/\\1/"`
        if test -d "$win32_dir"; then
            if test -n "$NEW_CRYSTAL"; then
                NEW_CRYSTAL="$NEW_CRYSTAL$PATH_SEPARATOR"
            fi
            NEW_CRYSTAL="$NEW_CRYSTAL$win32_dir"
        fi
    done
    IFS=$my_IFS
    if test -n "$NEW_CRYSTAL"; then
        CRYSTAL="$NEW_CRYSTAL"
    fi
fi

# Collect executables starting with 'cs-config-' from $CRYSTAL and $PATH
# @@@ FIXME: What about $CRYSTAL_x_y env vars?
OLD_IFS="$IFS"
IFS=$PATH_SEPARATOR
for p in $CRYSTAL$PATH_SEPARATOR$BASE_DIR$PATH_SEPARATOR$PATH ; do
  if [ -d "$p" ] ; then
    for s in "$p"/cs-config-* "$p"/bin/cs-config-* ; do
      if [ -x "$s" ] ; then
	echo "$s" >> ${TEMP_PREFIX}_find
      fi
    done
  fi
done
IFS="$OLD_IFS"

if [ ! -e ${TEMP_PREFIX}_find ] ; then
  echo "No cs-config-* scripts found" >&2
  exit -1
fi

# Reorder for sorting
cat ${TEMP_PREFIX}_find | sed 's!\(.*\)/cs-config-\(.*\)\.\(.*\)!\2:\3:\1!g' >> ${TEMP_PREFIX}_split
# Sort by version number
cat ${TEMP_PREFIX}_split | sort -u -t : -k 1,1nr -k 2,2nr >> ${TEMP_PREFIX}_sorted
# Extract first entry (highest version)
command=`cat ${TEMP_PREFIX}_sorted | head -n 1 | sed 's!\(.*\):\(.*\):\(.*\)!\3/cs-config-\1\.\2!'`
# cleanup
rm ${TEMP_PREFIX}*
# ...and execute.
"$command" $@