#!/bin/sh
#
# $HOME/.sh/.setenv - script for environment variables.
#
# written by Hiroki Sato <hrs@jp.FreeBSD.org>
# $Id$

# usage:
#
# from tcsh:
#    if ( -f $HOME/.sh/.setenv ) then
#        eval `$HOME/.sh/.setenv -c`
#    endif
#
# from sh:
#    if [ -f $HOME/.sh/.setenv ]; then
#        eval `$HOME/.sh/.setenv -s`
#    fi

### -s for sh, -c for csh/tcsh
getopts s,c OPT

### set variables for convenient
BASE=$HOME/.sh
CACHE_SH=$BASE/.setenv.cache.sh
CACHE_CSH=$BASE/.setenv.cache.csh

### include common definitions
. $BASE/.setenv.inc

### for sh or tcsh?
if [ "$OPT" = "c" ]; then
    CACHE=$CACHE_CSH
else
    CACHE=$CACHE_SH
fi

DEPENDS=`$LS -At $BASE | $HEAD -2 | $GREP '^\.setenv\.cache\.' | $WC -l`;

if [ $DEPENDS -ne 2 ]; then
    echo ".setenv: cache file is updated." 1>&2
    $CP /dev/null $CACHE_SH
    $CP /dev/null $CACHE_CSH
    create_cache;
else
    echo ".setenv: using cache ($CACHE)." 1>&2
fi

$CAT $CACHE;