#!/bin/sh

# tiny configure script for qmqtool
# we're in the major league now
# Copyright Jeremy Kister 2009.01.23 
# http://jeremy.kister.net/code/qmqtool/

echo " "

while test $# -gt 0 ; do
	case $1 in 
		--*=*) arg=`echo $1 | sed 's/.*=//'` ;;
		*) arg= ;;
	esac

	case $1 in
		--help)
			cat <<EOM
the following syntax to ./configure is supported:

   --prefix=PREFIX      install architecture-independent files in PREFIX
                           [/usr/local]
   --mandir=DIR         man documentation [PREFIX/man]
   --scriptdir=DIR      qmqtool script [PREFIX/script]

   --perl=PERL          full path to perl [/usr/local/bin/perl]
   --qmaildir=DIR       directory qmail is locted [/var/qmail]
   --upgrade            upgrade existing installation
                          (default when no prefix/mandir/scriptdir specified)
   --help               show help message

EOM
			exit;
		;;
		--upgrade)
			upgrade=1
		;;
	   --perl*)
			if [ "$arg" ]; then
				if [ -x "$arg" ] ; then
					perl=$arg
				else
					echo "*** PERL: $arg is not executable"
					sleep 1
				fi
			fi
		;;
	   --prefix*)
			if [ "$arg" ]; then
				if [ -d "$arg" ] ; then
					prefix=$arg
				else
					echo "*** PREFIX: $arg is not a directory"
					sleep 1
				fi
			fi
		;;
		--mandir*)
			if [ "$arg" ]; then
				if [ -d "$arg" ] ; then
					mandir=$arg
				else
					echo "*** MANDIR: $arg is not a directory"
					sleep 1
				fi
			fi
		;;
		--scriptdir*)
			if [ "$arg" ]; then
				if [ -d "$arg" ] ; then
					scriptdir=$arg
				else
					echo "*** SCRIPTDIR: $arg is not a directory"
					sleep 1
				fi
			fi
		;;
	   --qmaildir*)
			if [ "$arg" ]; then
				if [ -d "$arg" ] ; then
					qmaildir=$arg
				else
					echo "*** QMAILDIR: $arg is not a directory"
					sleep 1
				fi
			fi
		;;
		*)
			echo "unknown argument: $1"
			exit 1
	;;
	esac
	shift
done

if [ ! -x "$perl" ] ; then
	for dir in /usr/local/bin /usr/bin /bin ; do
		if test -f $dir/perl ; then
			perl=$dir/perl
			break
		fi
	done
	if [ ! -x "$perl" ] ; then
		echo "could not find perl: specify --perl="
		exit 1
	fi
fi

if [ ! -d "$qmaildir" ] ; then
	if test -d /var/qmail ; then
		qmaildir=/var/qmail
	else
		echo "could not find qmail directory: specify --qmaildir="
		exit 1
	fi
fi

if [ ! "$prefix" ] && [ ! "$scriptdir" ] && [ ! "$mandir" ] ; then
	exscr="`which qmqtool`"
	if [ -x "$exscr" ] ; then
		scriptdir="`echo $exscr | sed 's#/qmqtool$##'`"
	fi
	manpath="`echo $MANPATH | sed 's/:/ /g'`"
	for dir in $manpath ; do
		if [ -f "$dir/man8/qmqtool.8" ] ; then
			mandir=$dir
		fi
	done
fi
if [ ! "$prefix" ] ; then
	prefix="/usr/local"
fi
if [ ! "$scriptdir" ] ; then
	scriptdir="$prefix/script"
fi
if [ ! "$mandir" ] ; then
	mandir="$prefix/man"
fi

cat <<EOM

found perl: $perl
found qmail directory: $qmaildir
qmqtool will be installed in: $scriptdir
documentation will be installed in $mandir
 
if any of these values need changing, try ./configure --help
 
Making sure this package is intact..
EOM

$perl -wTc src/qmqtool
if [ $? = 0 ] ; then
	echo "...done."
else
	echo "problem with package - download from http://jeremy.kister.net./code/qmqtool/"
	exit 1
fi
echo "Writing Makefile..."

(
	echo PERL=$perl
	echo QMAIL=$qmaildir
	echo SCRIPTDIR=$scriptdir
	echo MANDIR=$mandir

	cat <<EOM

qmqtool: Makefile src/qmqtool
	@sed "s#__QMAILDIR__#$qmaildir#g;s#__PERL__#$perl#g" src/qmqtool > qmqtool
	@cp src/qmqtool.8 qmqtool.8

install: qmqtool
	-mkdir -p $scriptdir
	cp qmqtool $scriptdir
	chown 0 $scriptdir/qmqtool
	chmod 755 $scriptdir/qmqtool
	-mkdir -p $mandir/man8/
	cp qmqtool.8 $mandir/man8/
	chown 0 $mandir/man8/qmqtool.8
	chmod 744 $mandir/man8/qmqtool.8

clean:
	-rm Makefile qmqtool qmqtool.8

out:
	@echo "well, as long as you're a chick, sure!"

EOM

) > Makefile

echo " "
echo "now type 'make' and then 'make install'"