#!/bin/sh
#-----------------------------------------------------------------------------
# $Sendmail: update_chaos,v @sm_version@ @sm_date@ @sm_time@ cowboy Exp $
#
# Copyright (c) 2001-@SM_CPYRT@ Richard Nelson.  All Rights Reserved.
#
# @configure_input@
#
# Debian script to rationalize builds for Sendmail @sm_version@@sm_revision@(@sm_math@)
#
# Note: the .in file supports @SM_MINVERS@ - @SM_MAXVERS@, but the generated
#	file is customized to the version noted above.
#
#-----------------------------------------------------------------------------
set -e;

#------------------------------------------------------------------
# Exit, stage left, even... if not needed (private dir, or >= 8.10.0)
#------------------------------------------------------------------
BUILD_TREE='@srcdir@/../../build-tree/sendmail-@sm_version@';
if [ ! -d ${BUILD_TREE} ]; then
	exit 0;
	fi;
if [ -d ${BUILD_TREE}/devtools/bin ]; then
	exit 0;
	fi;

echo "Rationalizing Sendmail-@sm_version@ setup...";

#------------------------------------------------------------------
# List of subdirectories to work on
#------------------------------------------------------------------
SUBDIRS="editmap libmilter mail.local mailstats
	makemap praliases rmail sendmail smrsh vacation";

#------------------------------------------------------------------
# Match Sendmail's build directory conventions
#------------------------------------------------------------------
os=`uname -s | sed -e 's/\//-/g' -e 's/ //g'`;
rel=`uname -r | sed -e 's/(/-/g' -e 's/)//g'`;
arch=`uname -m | sed -e 's/ //g'`;
OBJ_DIR="obj.${os}.${rel}.${arch}";

#------------------------------------------------------------------
# Function to escape quotes (to survive subsequent sed)
#------------------------------------------------------------------
esq () {
	result=$(echo "${1}" | sed -e 's?\"?\\\\\\\"?g');
	};

#------------------------------------------------------------------
# Prior to 8.10.0, sendmail source was in the src directory
# Prior to 8.10.0, devtools was called BuildTools
#	Create compatibility links (to look like 8.10.0+)
#------------------------------------------------------------------
if [ ! -d ${BUILD_TREE}/sendmail ]; then
	echo "...Creating \${BUILD_TREE}/sendmail compatibility symlink";
	ln -sf src ${BUILD_TREE}/sendmail;
	if [ ! -d ${BUILD_TREE}/devtools ]; then
		echo "...Creating \${BUILD_TREE}/devtools compatibility symlink";
		ln -sf BuildTools ${BUILD_TREE}/devtools;
		fi;
	fi;

#------------------------------------------------------------------
# Prior to 8.10.0, objects were in the source directories, not separate
#	Create compatibility links (to look like 8.10.0+)
#------------------------------------------------------------------
echo "...Creating ${OBJ_DIR}/<dir> directories";
mkdir -p ${BUILD_TREE}/${OBJ_DIR};
for subdir in $SUBDIRS; do
	if [ -d ${BUILD_TREE}/${subdir} ]; then
		ln -sf "../${subdir}/${OBJ_DIR}" \
			${BUILD_TREE}/${OBJ_DIR}/${subdir};
		fi;
	done;

#------------------------------------------------------------------
# If 8.9.0+, we're done, get the flock outa here...
#------------------------------------------------------------------
if [ -e ${BUILD_TREE}/sendmail/Build ]; then
	echo '...Done.';
	exit 0;
	fi;

#------------------------------------------------------------------
# Prior to 8.9.0, READ_ME was seen in a few places
#	Create compatibility links
#------------------------------------------------------------------
echo '...Creating READ_ME compatility symlinks';
for file in $(find ${BUILD_TREE} -name 'READ_ME'); do
	ln -sf READ_ME $(echo "${file}" | sed -e 's/READ_ME/README/');
	done;

#------------------------------------------------------------------
# Prior to 8.9.0, MAKE was used instead of Build
#	 We'll install a small wrapper for the earlier releases
# Prior to 8.9.0, Only src directory had an obj.* subdirectory
#	Create compatibility links (to look like 8.9.0+)
#------------------------------------------------------------------
echo "...Creating <dir>/${OBJ_DIR}";
for subdir in $SUBDIRS; do
	if [ -d ${BUILD_TREE}/${subdir} ]; then
		if [ ! -d ${BUILD_TREE}/${subdir}/Makefiles ]; then
			mkdir -p ${BUILD_TREE}/${subdir}/${OBJ_DIR};
			for file in `find ${BUILD_TREE}/${subdir} -type f`; do 
				cp -a $file ${BUILD_TREE}/${subdir}/${OBJ_DIR};
				done;
			fi;
		cp -a debian/build/Build ${BUILD_TREE}/${subdir}/;
		fi;
	done;
#
#------------------------------------------------------------------
# Kluge the Makefiles to comply with our file locations.
#------------------------------------------------------------------
echo '...Kluging Makefiles';
for file in mailstats/Makefile.dist \
	mail.local/Makefile.dist \
	makemap/Makefile.dist \
	praliases/Makefile.dist \
	smrsh/Makefile.dist \
	src/Makefiles/Makefile.Linux \
	; do
	cp -a ${BUILD_TREE}/${file} ${BUILD_TREE}/${file}.save;
	#
	# Set local variables to allow for quoting...
	esq "@sm_incdirs@";
	sm_incdirs=$result;
	esq "@sm_mapdef@";
	sm_mapdef=$result;
	esq "@sm_envdef@";
	sm_envdef=$result;
	esq "@sm_libs@";
	sm_libs=$result;
	#
	# global
	sed  \
		-e 's?-I/usr/sww/include??' \
		-e 's?-I/usr/local/include??' \
		-e 's?-L/usr/sww/lib??' \
		-e 's?../src?../../src?g' \
		-e "s?^INCDIRS=\(.*\)\$?INCDIRS=\1 $sm_incdirs?" \
		-e "s?^DBMDEF=.*?DBMDEF=$sm_mapdef?" \
		-e "s?^ENVDEF=\(.*\)\$?ENVDEF=\1 $sm_envdef?" \
		-e "s?^LIBS=.*?LIBS=$sm_libs?" \
	${BUILD_TREE}/${file} > ${BUILD_TREE}/${file}.new;
	mv ${BUILD_TREE}/${file}.new ${BUILD_TREE}/${file};
	#
	# compilation/link
	sed \
		-e 's?^O=.*?O=@CFLAGS@?' \
		-e 's?^LIBDIRS=.*?LIBDIRS=?' \
	${BUILD_TREE}/${file} > ${BUILD_TREE}/${file}.new;
	mv ${BUILD_TREE}/${file}.new ${BUILD_TREE}/${file};

	#
	# paths, owners, and modes
	#	Note: EBINDIR deserves a better home, suggestions?
	sed \
		-e 's?^BINDIR=.*?BINDIR=${DESTDIR}@sbindir@?' \
		-e 's?^BINMODE=.*?BINMODE=04755?' \
		-e 's?^BINGRP=.*?BINGRP=mail?' \
		-e 's?^BINOWN=.*?BINOWN=root?' \
		-e 's?^HFDIR=.*?HFDIR=${DESTDIR}@sysconfdir@/mail?' \
		-e 's?^STDIR=.*?STDIR=${DESTDIR}@localstatedir@/lib/sendmail?' \
	${BUILD_TREE}/${file} > ${BUILD_TREE}/${file}.new;
	mv ${BUILD_TREE}/${file}.new ${BUILD_TREE}/${file};

	if [ "${file}" = 'mail.local/Makefile.dist' \
		-o "${file}" = 'smrsh/Makefile.dist' \
		]; then
		sed \
			-e 's?^BINDIR=.*?BINDIR=${DESTDIR}@libexecdir@?' \
			-e 's?^BINMODE=.*?BINMODE=04755?' \
			-e 's?^BINGRP=.*?BINGRP=mail?' \
			-e 's?^BINOWN=.*?BINOWN=root?' \
		${BUILD_TREE}/${file} > ${BUILD_TREE}/${file}.new;
		echo 'force-install: install' >> ${BUILD_TREE}/${file}.new;
		mv ${BUILD_TREE}/${file}.new ${BUILD_TREE}/${file};

	elif [ "${file}" = 'mailstats/Makefile.dist' \
		-o "${file}" = 'makemap/Makefile.dist' \
		-o "${file}" = 'praliases/Makefile.dist' \
		]; then
		sed \
			-e 's?^BINDIR=.*?BINDIR=${DESTDIR}@sbindir@?' \
			-e 's?^BINMODE=.*?BINMODE=0755?' \
			-e 's?^BINGRP=.*?BINGRP=mail?' \
			-e 's?^BINOWN=.*?BINOWN=root?' \
		${BUILD_TREE}/${file} > ${BUILD_TREE}/${file}.new;
		mv ${BUILD_TREE}/${file}.new ${BUILD_TREE}/${file};
		fi;

	# For most directories, replace Makefile with our updated Makefile.dist
	if [ "${file}" != 'src/Makefiles/Makefile.Linux' ]; then
		cp ${BUILD_TREE}/${file} \
			$(dirname "${BUILD_TREE}/${file}")/${OBJ_DIR}/Makefile;
		fi;
	done;

echo '...Done.';