#!/bin/sh
# Copyright (C) 2004 Nokia
# Author: veli.mankinen@movial.fi
# Licenced under GPL, see COPYING for details

# qmode : 1 = yes/no
#         2 = string
question()
{
	local q=$1
	local qmode=$2
	local def=$3

	if [ "$qmode" = "1" ] ; then
		while [ 1 = 1 ] ; do
			echo -n "$q [yes/no] ($def): " >&2
			read answer
			if [ "x$answer" = "x" ] ; then
				echo "$def"
				return
			fi
			if [ "$answer" != "yes" ] && [ "$answer" != "no" ] ; then
				echo "Answer 'yes' or 'no' !!" >&2
			else
				echo "$answer"
				return
			fi
		done
	elif [ "$qmode" = "2" ] ; then
		echo -n "$q ($def): " >&2
		read answer
		if [ "x$answer" = "x" ] ; then
			answer="$def"
		fi
		echo "$answer"
		return
	fi

	echo "ERROR: With question mode (script internal error) !?!!" >&2
}

set -e

if [ "x$1" = "x" ] ; then
	MISSING=0
	CHECK_DEPS=`question "Check if you have all the needed debian packages installed?" 1 yes`
	if [ "$CHECK_DEPS" = "yes" ] ; then
		IFS=$'\n'
		for i in `cat doc/debian-packages.txt | grep -ve "^#" -ve "^$"` ; do
			if ! dpkg-query -l ''$i'' 2>/dev/null | grep "^[hi]i " >/dev/null ; then
				echo " - Package '$i' is missing!"
				MISSING=1
			fi
		done
		unset IFS
	fi
	if [ "$MISSING" = 1 ] ; then
		CONTINUE=`question "Some packages are missing. Do you want to continue building?" 1 no`
		if [ "$CONTINUE" = "no" ] ; then
			exit 1
		fi
	fi

	echo "---"

	SB_BUILD_OPT_CLEAN_SOURCE=`question "Clean everything in source tree before build?" 1 no`
	SB_BUILD_OPT_CLEAN_TARGET=`question "Clean target ($SB_BUILD_OPT_ROOT/scratchbox/*) before build?" 1 no`

	echo "---"

	SB_BUILD_OPT_BUILD_HOST_COMP=`question "Would you like to build the 'host compiler'?" 1 yes`
	if [ "$SB_BUILD_OPT_BUILD_HOST_COMP" = "yes" ] ; then
		SB_BUILD_OPT_CLEAN_COMPILERS=`question "  Clean installation directory before build?" 1 no`
	fi

	echo "---"

	SB_BUILD_OPT_BUILD_TOOLS=`question "Would you like to build 'tools'?" 1 yes`
	SB_BUILD_OPT_BUILD_POST_INSTALL=`question "Would you like to run 'post-install'?" 1 yes`

	echo "---"

	SB_BUILD_OPT_GENERATE_DOCS=`question "Would you like to generate the HTML documentation?" 1 yes`

	echo "---"

	SB_BUILD_OPT_MAKEOPTS=`question "Give make options (-j4 etc.)" 2 "-j1"`
	SB_BUILD_OPT_USE_CCACHE=`question "Use ccache during compile" 1 yes`
#	SB_BUILD_OPT_USE_CACHECC1=`question "Use cachecc1 during compile (Dont't use both (ccache and this))" 1 no`
	SB_BUILD_OPT_SBOX_VERSION=`question "Give scratchbox version" 2 "CVS-$(date +%Y%m%d)"`

	echo "---"

	SB_BUILD_OPT_DARCS_USE=`question "Use snapshots of darcs repositories {disable for releases}" 1 yes`
	if [ "$SB_BUILD_OPT_DARCS_USE" = "yes" ] ; then
		SB_BUILD_OPT_DARCS_REPOS=`question "  Repository location?" 2 "$(dirname $(pwd))"`
	fi

	echo "---"

	SB_BUILD_OPT_OUT_FILE=`question "Save output to file named {"-" means none}" 2 "build.out"`

	echo "---"

	SAVE_FILE=`question "Save these options to file named" 2 "build.config"`
	rm -rf $SAVE_FILE
	for i in `set | grep "SB_BUILD_OPT_" | tr " " "£"`; do I=`echo $i | tr "£" " "`; echo "$I" >>$SAVE_FILE; done
else
	source $1
fi

LOGFILE=$PWD/build.log
TIME="/usr/bin/time -vao $LOGFILE"

log() {
	echo >>$LOGFILE -e '\n'`date +"%Y-%m-%d %H:%M:%S"` $@
}

do_build()
{
	export SBOX_VERSION=$SB_BUILD_OPT_SBOX_VERSION

	if [ "$SB_BUILD_OPT_DARCS_USE" = "yes" ] ; then
		export DARCS_SNAPSHOTS="$SB_BUILD_OPT_DARCS_REPOS"
	fi

	for i in `seq 70`; do
		echo >>$LOGFILE -n "="
	done
	echo >>$LOGFILE

	log "Begin"

	if [ "$SB_BUILD_OPT_CLEAN_SOURCE" = "yes" ] ; then
		log "Cleaning source tree"
		$TIME make clean
	fi

	if [ "$SB_BUILD_OPT_CLEAN_TARGET" = "yes" ] ; then
		log "Cleaning installation"
		$TIME rm -rf $SB_BUILD_OPT_ROOT/scratchbox/* \
		             $SB_BUILD_OPT_ROOT/scratchbox/.run_me_first_done \
		             $SB_BUILD_OPT_ROOT/scratchbox/.sudo_mode
	fi

	if [ -d _darcs ] || [ ! -e doc/ChangeLog ]; then
		log "Updating ChangeLog"
		$TIME make doc/ChangeLog
	fi

	log "Building base"
	$TIME make base $SB_BUILD_OPT_MAKEOPTS

	BUILD_CACHE=$SB_BUILD_OPT_ROOT/scratchbox/build_cache

	if [ "$SB_BUILD_OPT_USE_CCACHE" = "yes" ] ; then
		if [ ! -x $BUILD_CACHE/ccache ] ; then
			log "Building temporary ccache"
			$TIME make -C tools/ccache $SB_BUILD_OPT_MAKEOPTS clean build \
				SBOX_SPECS=/dev/null CATEGORY_GCCDIR=/usr CATEGORY_LDFLAGS=

			mkdir -p $BUILD_CACHE
			cp `find tools/ccache/work/ -name ccache -perm +111` $BUILD_CACHE/

			make -C tools/ccache clean
		fi

		ln -sf ccache $BUILD_CACHE/gcc
		ln -sf ccache $BUILD_CACHE/cc
		ln -sf ccache $BUILD_CACHE/g++
		ln -sf ccache $BUILD_CACHE/arm-linux-gcc
		ln -sf ccache $BUILD_CACHE/i386-linux-gcc
		ln -sf ccache $BUILD_CACHE/sbox-kgcc-arm-linux-gcc

		export CCACHE_UMASK=002
		export PATH=$BUILD_CACHE:$PATH
	fi

#	if [ "$SB_BUILD_OPT_USE_CACHECC1" = "yes" ] ; then
#		if [ ! -x $BUILD_CACHE/cachecc1 ] ; then
#			log "Building temporary cachecc1"
#			$TIME make -C tools/cachecc1 $SB_BUILD_OPT_MAKEOPTS clean build \
#				SBOX_SPECS=/dev/null CATEGORY_GCCDIR=/usr CATEGORY_LDFLAGS=
#
#			mkdir -p $BUILD_CACHE
#			cp `find tools/cachecc1/work/ -name cachecc1 -perm +111` $BUILD_CACHE/
#			cp `find tools/cachecc1/work/ -name followcc1.so` $BUILD_CACHE/
#
#			make -C tools/cachecc1 clean
#		fi
#
#		if [ "x$CACHECC1DIR" = "x" ] ; then
#			export CACHECC1DIR=$HOME/.cachecc1
#		fi
#		mkdir -p $CACHECC1DIR
#
#		export CACHECC1=$BUILD_CACHE/cachecc1
#		export LD_PRELOAD=$BUILD_CACHE/followcc1.so
#	fi

	if [ "$SB_BUILD_OPT_BUILD_HOST_COMP" = "yes" ] ; then
		if [ "$SB_BUILD_OPT_CLEAN_COMPILERS" = "yes" ] ; then
			log "Cleaning host-gcc source tree and installation"
			make -C compilers/host_gcc $SB_BUILD_OPT_MAKEOPTS clean-installation
		fi
		log "Building host-gcc"
		$TIME make $SB_BUILD_OPT_MAKEOPTS host-gcc
	fi

	log "Building utils"
	$TIME make utils $SB_BUILD_OPT_MAKEOPTS

	if [ "$SB_BUILD_OPT_BUILD_TOOLS" = "yes" ] ; then
		log "Building tools"
		$TIME make $SB_BUILD_OPT_MAKEOPTS tools
	fi

	if [ "$SB_BUILD_OPT_BUILD_POST_INSTALL" = "yes" ] ; then
		log "Running post-install"
		$TIME make $SB_BUILD_OPT_MAKEOPTS post-install
	fi

	if [ "$SB_BUILD_OPT_GENERATE_DOCS" = "yes" ] ; then
		log "Building documentation"
		$TIME make $SB_BUILD_OPT_MAKEOPTS docs
	fi

	log "End"
	echo >>$LOGFILE
}

if [ x"$SB_BUILD_OPT_OUT_FILE" = x- ] ; then
	do_build
else
	do_build 2>&1 | tee "$SB_BUILD_OPT_OUT_FILE"
fi