#!/bin/bash
#
# --- ROCK-COPYRIGHT-NOTE-BEGIN ---
# 
# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
# Please add additional copyright information _after_ the line containing
# the ROCK-COPYRIGHT-NOTE-END tag. Otherwise it might get removed by
# the ./scripts/Create-CopyPatch script. Do not edit this copyright text!
# 
# ROCK Linux: rock-src/scripts/Config
# ROCK Linux is Copyright (C) 1998 - 2006 Clifford Wolf
# 
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version. A copy of the GNU General Public
# License can be found at Documentation/COPYING.
# 
# Many people helped and are helping developing ROCK Linux. Please
# have a look at https://www.rocklinux.org/ and the Documentation/TEAM
# file for details.
# 
# --- ROCK-COPYRIGHT-NOTE-END ---

if [ -z "${lines:=$LINES}" -o -z "${columns:=$COLUMNS}" ] ; then
	if [ "$( type -p stty )" ] ; then
		lines="$(   stty size 2> /dev/null | cut -d' ' -f1 )"
		columns="$( stty size 2> /dev/null | cut -d' ' -f2  )"
	fi
	[ -z "$lines"   -o "$lines"   -le 0 ] 2> /dev/null && lines=24
	[ -z "$columns" -o "$columns" -le 0 ] 2> /dev/null && columns=80
fi

eval "$(egrep '^rockver=' scripts/parse-config)"

config=default
do_config_cycle=0
delete_mode=0
oldconfig=''
nobashmod=''
profile=''

while [ "$1" ] ; do
        case "$1" in
# 	    -cycle)	do_config_cycle=1 ; shift ;;
	    -delete)	delete_mode=1     ; shift ;;
	    -profile)	profile='-profile'        ; shift ;;
	    -oldconfig)	oldconfig='-oldconfig'    ; shift ;;
	    -nobashmod)	nobashmod='-nobashmod'    ; shift ;;
	    -cfg)	config="$2"       ; shift ; shift ;;

	    *)
		echo
		echo "Usage: $0 [ -delete | -oldconfig ] [ -cfg <config> ]"
		echo " Create and modify build configurations for the other"
		echo " scripts, e.g. Download, Build-Target, and Emerge-Pkg."
		echo
		echo "	-cfg <config>	use <config> as the configuration name. If this option"
		echo "			is not set the name 'default' is used. If no"
		echo "			configuration by this name exists, one with default"
		echo "			settings is created."
		echo "	-delete		delete the specified configuration"
		echo "	-oldconfig	run without a menu-based interface; changes to settings"
		echo "			in configuration files have to be made manually before"
		echo "			./scripts/Config recreates the whole configuration"
		echo  
		echo "Other options:"
		echo "	-profile	create a config.profile with profiling data"
		echo "	-nobashmod	don't use the bash config helper plugin"
		echo
		exit 1 ;;
        esac
done

./scripts/Check-System || exit 1

if [ $delete_mode = 1 ] ; then
	rm -rv config/$config
	exit $?
fi

# hook for third-party targets that need to insert additional packages before config runs, for example.
# for precnf in target/*/preconfig.sh ; do
# 	[ -f $precnf ] && . $precnf 
# done

swpid=swp$$
swpdir="config/$config.$swpid"

rm -f rockdialog.scrltmp # src/rockdialog.bin
mkdir -p src

if [ -z "$oldconfig" -a ! -f src/rockdialog.bin ] ; then
	echo "Creating rockdialog tool."
	command="gcc misc/rockdialog/*.c `
		`-Imisc/rockdialog -lncurses -o src/rockdialog.bin"
	eval "$command.$swpid"
	mv src/rockdialog.bin{.$swpid,}
fi

if [ -z "$nobashmod" ]; then
	if [ ! -f src/config_helper.so -o misc/tools-source/config_helper.c -nt src/config_helper.so ]; then
		echo "Building src/config_helper.so."
		gcc -shared -fPIC -Wall -o src/config_helper.so misc/tools-source/config_helper.c || exit 1
	fi
	enable -f src/config_helper.so cfghlp || exit 1
fi

if [ -z "$profile" ]; then
	bprof() { :; }
	bprof_print() { :; }
else
	if [ ! -f src/bash_profiler.so -o misc/tools-source/bash_profiler.c -nt src/bash_profiler.so ]; then
		echo "Building src/bash_profiler.so."
		gcc -shared -fPIC -Wall -o src/bash_profiler.so misc/tools-source/bash_profiler.c || exit 1
	fi
	rm -f config.profile
	enable -f src/bash_profiler.so bprof || exit 1
	bprof_print() {
		{ echo "--- `date` ---"; bprof all print | sort -k2; } >> config.profile
	}
fi

bprof main start

echo "Running ROCK Linux $rockver configuration ..."
if [ ! -e config/$config ] ; then
	mkdir -p config/$config
	echo "Creating new configuration $config ..."
	$0 -oldconfig $profile $nobashmod -cfg $config
fi

# From scripts/parse-config
base=$(pwd -P)

. scripts/functions
. scripts/config.func

mkdir -p config/$config
touch config/$config/{config{,_usr},packages}

rm -rf $swpdir
cp -r config/$config $swpdir

current=""
menu_this=0 ; menu_current=0 ; menu_stack=x

include ()
{
	local x
	for x in $@ ; do
		[ -f "$x" ] && . "./$x"
	done
}

arch=none
if expr "`uname -m`" : "x86_64"  > /dev/null ; then arch=x86     ; fi
if expr "`uname -m`" : "i.86"    > /dev/null ; then arch=x86     ; fi
if expr "`uname -m`" : "alpha"   > /dev/null ; then arch=alpha   ; fi
if expr "`uname -m`" : "ppc"     > /dev/null ; then arch=powerpc ; fi
if expr "`uname -m`" : "powerpc" > /dev/null ; then arch=powerpc ; fi
if expr "`uname -m`" : "sparc"   > /dev/null ; then arch=sparc   ; fi
if expr "`uname -m`" : "mips"    > /dev/null ; then arch=mips    ; fi

export ROCKCFG_EXPERT=0

. $swpdir/config
. $swpdir/config_usr

old_pkg_cmd=""
do_config_cycle=1
recreate_packages=1
while [ "$do_config_cycle" == 1 ] ; do
	pkg_cmd="$ROCKCFG_ARCH"
	[ "$ROCKCFG_DISABLE_BROKEN" = 1 ] && pkg_cmd="${pkg_cmd} -nobroken"
	pkg_cache="$swpdir/config.pcache.${pkg_cmd// }"

	if [ "$old_pkg_cmd" != "$pkg_cmd" ] ; then
		recreate_packages=1
	fi
	if [ "$recreate_packages" == 1 ] ; then
		recreate_packages=0
		if [ -f "$pkg_cache" ] ; then
			cp -a "$pkg_cache" "$swpdir/packages"
			pkgin
		else
			eval "./scripts/Create-PkgList $pkg_cmd" \
				> $swpdir/packages
			cp -a "$swpdir/packages" "$pkg_cache"
		fi
		old_pkg_cmd="$pkg_cmd"
	else
		cp -a "$pkg_cache" "$swpdir/packages"
	fi

	pkgin
	rm -f $swpdir/config.{dialog,data,help}{,.*}
	
	config_cycle
	
	bprof main stop
	bprof rockconfig start

	. scripts/config.in

	bprof rockconfig stop
	bprof main start

	pkgout
	configtitle="$(printf ' %-50s %6s active packages ]' \
		"ROCK Linux $rockver Configuration - $config" \
		"[ $(echo `grep '^X' $swpdir/packages | wc -l`)" )"
	
	do_dialog_cycle=1
	while [ "$do_dialog_cycle" = 1 ] ; do
		if [ -z "$oldconfig" ] ; then
			bprof main stop
			bprof rockdialog start
			eval "./src/rockdialog.bin --title 'Build Config' \
				--backtitle '$configtitle' \
				--menu 'Arrow keys navigate the menu.  Press <Enter> to activate menu items.  Highlighted letters are hotkeys.' \
				$(( $lines - 4 )) $(( $columns - 5 )) $(( $lines - 12 )) \
				'$current' `tr '\n' ' ' \
				< $swpdir/config.dialog.$menu_current`" \
				2> $swpdir/config.out
			returncode=$? ; item="`cat $swpdir/config.out`"
			bprof rockdialog stop
			bprof main start
		else
			returncode=1
		fi
		
		[ "$returncode" = 1 -a "$menu_current" -ne 0 ] && returncode="menu-back"
		
		case "$returncode" in
		0|6)
			command="`grep "^$item	" \
				$swpdir/config.data.$menu_current | cut -f2-`"
			if [[ "$command" != menu_current=* ]] ; then
				[ -n "$command" ] && do_dialog_cycle=0
				current="$item"
			fi
			eval "$command"
			;;
		menu-back)
			command="`grep "^MENU_BACK	" \
				$swpdir/config.data.$menu_current | cut -f2-`"
			eval "$command"
			;;
		1|255)
			do_dialog_cycle=0
			do_config_cycle=0
			rm -f $swpdir/config.{data,dialog,out,help}{,.*}
			rm -f $swpdir/config.pcache.*
			rm -f rockdialog.scrltmp # src/rockdialog.bin
			echo "New config written to config/$config/*."
			echo "Cleaning up. Configuration finished."
			;;
		2)
			item=$(echo $item | cut -f1 -d' ')  # dialog(1) bug?
			current="$item"
	
			get_help $item > $swpdir/config.dialog
	
			bprof main stop
			./src/rockdialog.bin --title 'ROCK Linux Config - Help' \
				--backtitle "ROCK Linux $rockver Configuration" \
				--textbox $swpdir/config.dialog \
				$(( $lines - 4 )) $(( $columns - 5 ))
			bprof main start
			;;
		*)
			do_dialog_cycle=0
			do_config_cycle=0
			echo "unknown returncode: $returncode"
			;;
		esac
	done
	bprof main stop
done

bprof finish start

pkgout

rm -f $swpdir/*.tmp

echo -e "#\n# ROCK Linux $rockver Config File\n#\n" \
	> $swpdir/config
echo -e "#\n# ROCK Linux $rockver User Config File\n#" \
	> $swpdir/config_usr

for x in ${!ROCKCFG_*}; do
	echo "export ${x}='${!x}'"
done >> $swpdir/config
for x in ${!ROCKCFGUSR_*}; do
	echo "${x}='${!x}'"
done >> $swpdir/config_usr

sort -k1,1r -k3,3 $swpdir/packages > $swpdir/packages.sorted
mv -f $swpdir/packages{.sorted,}

for x in $( ls $swpdir/ ); do
	cp $swpdir/{$x,__tmp}
	mv $swpdir/__tmp config/$config/$x
done
for x in $( ls config/$config ); do
	[ -e $swpdir/$x ] || rm -f config/$config/$x
done
rm -rf $swpdir

bprof finish stop
bprof_print