:
# NAME:
#	install-mk - install mk files
#
# SYNOPSIS:
#	install-mk [options] [var=val] [dest]
#
# DESCRIPTION:
#	This tool installs mk files in a semi-intelligent manner into
#	"dest".
#
#	Options:
#
#	-n	just say what we want to do, but don't touch anything.
#
#	-f	use -f when copying sys,mk.
#
#	-v	be verbose
#
#	-q	be quiet
#
#	-m "mode"
#		Use "mode" for installed files (444).
#
#	-o "owner"
#		Use "owner" for installed files.
#
#	-g "group"
#		Use "group" for installed files.
#
#	var=val
#		Set "var" to "val".  See below.
#
#	All our *.mk files are copied to "dest" with appropriate
#	ownership and permissions.
#	
#	By default if a sys.mk can be found in a standard location
#	(that bmake will find) then no sys.mk will be put in "dest".
#
#	SKIP_SYS_MK:
#		If set, we will avoid installing our 'sys.mk'
#		This is probably a bad idea.
#
#	SKIP_BSD_MK:
#		If set, we will skip making bsd.*.mk links to *.mk
#
#	sys.mk:
#
#	By default (and provided we are not installing to the system
#	mk dir - '/usr/share/mk') we install our own 'sys.mk' which
#	includes a sys specific file, or a generic one.
#
#
# AUTHOR:
#       Simon J. Gerraty <sjg@crufty.net>

# RCSid:
#	$Id: install-mk,v 1.128 2016/06/03 17:22:32 sjg Exp $
#
#	@(#) Copyright (c) 1994 Simon J. Gerraty
#
#	This file is provided in the hope that it will
#	be of use.  There is absolutely NO WARRANTY.
#	Permission to copy, redistribute or otherwise
#	use this file is hereby granted provided that 
#	the above copyright notice and this notice are
#	left intact. 
#      
#	Please send copies of changes and bug-fixes to:
#	sjg@crufty.net
#

MK_VERSION=20160602
OWNER=
GROUP=
MODE=444
BINMODE=555
ECHO=:
SKIP=
cp_f=-f

while :
do
	case "$1" in
	*=*) eval "$1"; shift;;
	+f) cp_f=; shift;;
	-f) cp_f=-f; shift;;
	-m) MODE=$2; shift 2;;
	-o) OWNER=$2; shift 2;;
	-g) GROUP=$2; shift 2;;
	-v) ECHO=echo; shift;;
	-q) ECHO=:; shift;;
	-n) ECHO=echo SKIP=:; shift;;
	--) shift; break;;
	*) break;;
	esac
done

case $# in
0)	echo "$0 [options] <destination> [<os>]"
	echo "eg."
	echo "$0 -o bin -g bin -m 444 /usr/local/share/mk"
	exit 1
	;;
esac
dest=$1
os=${2:-`uname`}
osrel=${3:-`uname -r`}

Do() {
	$ECHO "$@"
	$SKIP "$@"
}

Error() {
	echo "ERROR: $@" >&2
	exit 1
}

Warning() {
	echo "WARNING: $@" >&2
}

[ "$FORCE_SYS_MK" ] && Warning "ignoring: FORCE_{BSD,SYS}_MK (no longer supported)"

SYS_MK_DIR=${SYS_MK_DIR:-/usr/share/mk}
SYS_MK=${SYS_MK:-$SYS_MK_DIR/sys.mk}

realpath() {
	[ -d $1 ] && cd $1 && 'pwd' && return
	echo $1
}

if [ -s $SYS_MK -a -d $dest ]; then
	# if this is a BSD system we don't want to touch $SYS_MK
	dest=`realpath $dest`
	sys_mk_dir=`realpath $SYS_MK_DIR`
	if [ $dest = $sys_mk_dir ]; then
		case "$os" in
		*BSD*)	SKIP_SYS_MK=: 
			SKIP_BSD_MK=:
			;;
		*)	# could be fake?
			if [ ! -d $dest/sys -a ! -s $dest/Generic.sys.mk ]; then
				SKIP_SYS_MK=: # play safe
				SKIP_BSD_MK=:
			fi
			;;
		esac
	fi
fi

[ -d $dest/sys ] || Do mkdir -p $dest/sys
[ -d $dest/sys ] || Do mkdir $dest/sys || exit 1
[ -z "$SKIP" ] && dest=`realpath $dest`

cd `dirname $0`
mksrc=`'pwd'`
if [ $mksrc = $dest ]; then
	SKIP_MKFILES=:
else
	# we do not install the examples
	mk_files=`grep '^[a-z].*\.mk' FILES | egrep -v '(examples/|^sys\.mk|sys/)'`
	mk_scripts=`egrep '^[a-z].*\.(sh|py)' FILES | egrep -v '/'`
	sys_mk_files=`grep 'sys/.*\.mk' FILES`
	SKIP_MKFILES=
	[ -z "$SKIP_SYS_MK" ] && mk_files="sys.mk $mk_files"
fi
$SKIP_MKFILES Do cp $cp_f $mk_files $dest
$SKIP_MKFILES Do cp $cp_f $sys_mk_files $dest/sys
$SKIP_MKFILES Do cp $cp_f $mk_scripts $dest
$SKIP cd $dest
$SKIP_MKFILES Do chmod $MODE $mk_files $sys_mk_files
$SKIP_MKFILES Do chmod $BINMODE $mk_scripts
[ "$GROUP" ] && $SKIP_MKFILES Do chgrp $GROUP $mk_files $sys_mk_files
[ "$OWNER" ] && $SKIP_MKFILES Do chown $OWNER $mk_files $sys_mk_files
# if this is a BSD system the bsd.*.mk should exist and be used.
if [ -z "$SKIP_BSD_MK" ]; then
	for f in dep doc init lib links man nls obj own prog subdir
	do
		b=bsd.$f.mk
		[ -s $b ] || Do ln -s $f.mk $b
	done
fi
exit 0