#!/usr/bin/env bash
#
# --- T2-COPYRIGHT-NOTE-BEGIN ---
# T2 SDE: scripts/Build-Tools
# Copyright (C) 2004 - 2024 The T2 SDE Project
# Copyright (C) 1998 - 2003 ROCK Linux Project
# 
# This Copyright note is generated by scripts/Create-CopyPatch,
# more information can be found in the files COPYING and README.
# 
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2.
# --- T2-COPYRIGHT-NOTE-END ---

config=default
stagelevel=9
cleanup=0

while [ "$1" ]; do
    case "$1" in
	-cleanup)  cleanup=1; shift ;;
	-cfg)      config=$2; shift; shift ;;
	-[0-9])    options="$options $1" stagelevel=${1#-}; shift ;;
	*)         echo "Usage: $0 [ -cfg config ] [ -0 | -9 ] \\"
	           echo "       ${0//?/ } [ -cleanup ]"; exit 1 ;;
    esac
done

. scripts/parse-config
. scripts/functions.in

var_remove PATH ":" $base/build/$SDECFG_ID/TOOLCHAIN/$toolsdir/bin
var_remove PATH ":" $base/build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper

mkdir -p src
mkdir -p build/$SDECFG_ID/TOOLCHAIN/$toolsdir/bin
mkdir -p build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper
mkdir -p build/$SDECFG_ID/TOOLCHAIN/$toolsdir/lib

if [ $toolsdir = cross ]; then
	mkdir -p build/$SDECFG_ID/TOOLCHAIN/$toolsdir/{var/adm,etc,share,include}
	[ -L build/$SDECFG_ID/TOOLCHAIN/$toolsdir/usr ] ||
		ln -s . build/$SDECFG_ID/TOOLCHAIN/$toolsdir/usr
	[ -L build/$SDECFG_ID/TOOLCHAIN/$toolsdir/sbin ] ||
		ln -s bin build/$SDECFG_ID/TOOLCHAIN/$toolsdir/sbin
	[ -L build/$SDECFG_ID/TOOLCHAIN/$toolsdir/var/adm/logs ] ||
		ln -s ../../../../var/adm/logs \
		      build/$SDECFG_ID/TOOLCHAIN/$toolsdir/var/adm/logs
	mkdir -p build/$SDECFG_ID/var/adm/logs
fi

x="$(bash scripts/xfind.sh config/$config/. package/. scripts/. \
	misc/. architecture/. target/.  \( ! -name '*.cache' ! \
	-name '*.patch*' ! -name '.*' ! -name 'svn-commit.tmp' \
	\( ! -name '*.conf' -o -name 'pkg*.conf' \) \) -a -type f \
	-newer build/$SDECFG_ID/TOOLCHAIN/$toolsdir/.lastupdate \
	-printf 'Found new/updated file: %p\n' 2> /dev/null)"

if [ "$x" ]; then
	echo_header Found $(echo "$x" | wc -l) new/updated \
	            files in source tree:
	echo "$x" | head -n 3 | sed 's,/\./,/,g' |
		while read y; do echo_status $y; done
	[ "$(echo "$x" | tail -n +4)" ] &&
	    echo_status "** list truncated to save space on the terminal **"

	if [ "$SDEDEBUG_TOOLS_SKIP" = 1 ]; then
		echo_error "Found \$SDEDEBUG_TOOLS_SKIP"
	else
		rm -f build/$SDECFG_ID/TOOLCHAIN/$toolsdir/.lastupdate
		if echo "$x" | grep -qv " config/$config/"; then
			echo_header Re-running configuration:
			while read -r line; do
				echo_status "$line"
			done < <(scripts/Config -cfg $config -oldconfig)
		fi
	fi
fi

if [ $cleanup = 1 ]; then
	echo_header "Removing old stuff in $toolsdir/"

	rm -f build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper/*

	rm -f build/$SDECFG_ID/TOOLCHAIN/$toolsdir/bin/getdu
	rm -f build/$SDECFG_ID/TOOLCHAIN/$toolsdir/bin/getfiles
	rm -f build/$SDECFG_ID/TOOLCHAIN/$toolsdir/bin/fl_wrparse
	rm -f build/$SDECFG_ID/TOOLCHAIN/$toolsdir/bin/fl_stparse

	rm -f build/$SDECFG_ID/TOOLCHAIN/$toolsdir/lib/fl_wrapper.so
	rm -f build/$SDECFG_ID/TOOLCHAIN/$toolsdir/lib/parse-config
	rm -f build/$SDECFG_ID/TOOLCHAIN/$toolsdir/lib/parse-config-fixarch
	rm -f build/$SDECFG_ID/TOOLCHAIN/$toolsdir/.lastupdate
fi

if [ ! -f build/$SDECFG_ID/TOOLCHAIN/$toolsdir/.lastupdate ]; then

	echo_header "Building tools in build/.../TOOLCHAIN/$toolsdir:"

	# CC, CXX, F77 and KCC Wrapper
	wrappers="cmd_wrapper" wrappervars=
	echo_status "Building $toolsdir/wrapper/cmd_wrapper"
	$BUILDCC -Wall -O2 misc/tools-source/cmd_wrapper.c \
		  -DENVPREFIX='"CMD"' -DMYNAME='"cmd_wrapper"' \
	          -o build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper/tmp.$$ || exit 1
	mv build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper/{tmp.$$,cmd_wrapper}

	build_wrapper() {
	    local x="$(echo ${1//,/ })" y z
	    wrappervars="$wrappervars $x"
	    while shift; [ $# != 0 ]
	    do
		wrappers="$wrappers $1"
		tmp=`mktemp -p build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper`
		{
			echo '#!/usr/bin/env bash'

			for y in $x; do
				echo -n "[ \"\$${y}_WRAPPER_DEBUG\" = 1 ] && "
				echo "export CMD_WRAPPER_DEBUG=1"
			done

			for y in $x; do
				echo -n "[ \"\$${y}_WRAPPER_BYPASS\" = 1 ] && "
				echo "export CMD_WRAPPER_BYPASS=1"
			done

			z=""; echo -n 'export CMD_WRAPPER_APPEND_PO="'
			for y in $x; do
				echo -n "${z}\$${y}_WRAPPER_APPEND_PO"; z=" "
			done; echo '"'

			z=""; echo -n 'export CMD_WRAPPER_OTHERS="'
			for y in $x; do
				echo -n "${z}\$${y}_WRAPPER_OTHERS"; z=":"
			done; echo '"'

			z=""; echo -n 'export CMD_WRAPPER_INSERT="'
			for y in $x; do
				echo -n "${z}\$${y}_WRAPPER_INSERT"; z=" "
			done; echo '"'

			z=""; echo -n 'export CMD_WRAPPER_REMOVE="'
			for y in $x; do
				echo -n "${z}\$${y}_WRAPPER_REMOVE"; z=" "
			done; echo '"'

			z=""; echo -n 'export CMD_WRAPPER_APPEND="'
			for y in $x; do
				echo -n "${z}\$${y}_WRAPPER_APPEND"; z=" "
			done; echo '"'

			z=""; echo -n 'export CMD_WRAPPER_FILTER="'
			for y in $x; do
				echo -n "${z}\$${y}_WRAPPER_FILTER"; z="|"
			done; echo '"'

			echo 'exec cmd_wrapper $(basename $0) "$@"'
		} > $tmp
		chmod +rx $tmp
		mv $tmp "build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper/$1"
	    done
	}

	while read script; do . $script
	done < <(bash scripts/xfind.sh package/. \
		$(get_reverted `get_expanded target/%/. $targetchain`) misc/. -name 'wrappers.in')

	echo_status "Building $toolsdir/wrapper/strip_wrapper"
	cat << EOT > build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper/strip_wrapper.$$
#!/usr/bin/env bash
if [ "\$STRIP_WRAPPER_NOLOOP" = 1 ]; then
	echo "Error: Strip wrapper is looping!" >&2
	exit 1
fi
if [ "\$SDECFG_DEBUG" = 0 -o "\$STRIP_WRAPPER_BYPASS" = 1 ]; then
	PATH=\${PATH//\$STRIP_WRAPPER_MYPATH:/}
	export STRIP_WRAPPER_NOLOOP=1
	exec "\$(basename \$0)" "\$@"
fi
exit 0
EOT
	chmod +x build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper/strip_wrapper.$$
	mv build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper/strip_wrapper{.$$,}
	wrappers="$wrappers strip_wrapper"

	for x in strip $arch_target-strip; do
		[ $crossnative = cross -a $x = strip ] && continue
		ln -sf strip_wrapper build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper/$x
		wrappers="$wrappers $x"
	done

	case $arch_target in
		*mingw32*)	uname_machine=MINGW32 ;;
		*darwin*)	uname_machine=Darwin ;;
		*)		uname_machine=Linux ;;
	esac
	echo_status "Building $toolsdir/wrapper/{arch,uname}"
	cat << EOT > build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper/uname.$$
#!/usr/bin/env bash

arch=\$(echo \${arch_machine} | sed 's/armv.*/arm/; s/sparcv.*/sparc/; s/powerpc/ppc/')

echo "You should not run uname during the build: \$*" >&2
[ -z "\$1" ] && set -- '-s'

# shorten long options
opts="\$(echo " \$*" | sed 's/--all/-a/; s/--kernel-name/-s/; s/--nodename/-n/;
			  s/--kernel-release/-r/; s/--release/-r/;
			  s/--machine/-m/; s/--processor/-p/;
			  s/--operating-system/-o/; s/--kernel-version/-v/;')"
str=
# expand combined options
opts="\$(echo "\$opts" | sed 's/[^-]/ -&/g; s/- //g; s/-a/-m -n -r -s -v/')"
newopts="\${opts// -s/}"
[ "\$newopts" != "\$opts" ] && str="\$str $uname_machine"
opts="\$newopts" newopts="\${opts// -n/}"
[ "\$newopts" != "\$opts" ] && str="\$str \$(hostname)"
opts="\$newopts" newopts="\${opts// -r/}"
if [ "\$newopts" != "\$opts" ]; then
  # TODO: not hardcode system version
  [ $SDECFG_KERNEL = "darwin" ] && str="\$str 21.5.0" ||
  str="\$str $(sed -n 's/\[V\] \([^ ]*\).*/\1/p' \
    $base/package/*/linux-header/linux-header.desc)-inside-t2-sandbox"
fi
opts="\$newopts" newopts="\${opts// -v/}"
[ "\$newopts" != "\$opts" ] && str="\$str #1 SMP $(date)"
opts="\$newopts" newopts="\${opts// -m/}"
[ "\$newopts" != "\$opts" ] && str="\$str \$arch"
opts="\$newopts" newopts="\${opts// -p/}"
[ "\$newopts" != "\$opts" ] && str="\$str unknown"
opts="\$newopts" newopts="\${opts// -o/}"
[ "\$newopts" != "\$opts" ] && str="\$str GNU/$uname_machine"

if [ "\$newopts" ]; then
	echo "uname wrapper: Unknown option: '\$newopts'" >&2
	exit 1
fi
echo \${str:1} # skip the leading blank
EOT
	unset uname_machine

	cat << EOT > build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper/arch.$$
#!/bin/sh
echo "You should not run arch during the build!" >&2
echo "$(echo $arch | arch2uname)"
EOT
	chmod +x build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper/{arch,uname}.$$
	mv build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper/arch{.$$,}
	mv build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper/uname{.$$,}
	wrappers="$wrappers arch uname"

	if [ $crossnative = cross ]; then
		echo_status "Building $toolsdir/wrapper/ldconfig"
		cat << EOT > build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper/ldconfig.$$
#!/bin/sh
echo "You should not run ldconfig during the build!" >&2
EOT
		chmod +x build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper/ldconfig.$$
		mv build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper/ldconfig{.$$,}
		wrappers="$wrappers ldconfig"
	fi

	echo_status "Building $toolsdir/wrapper/install_wrapper"
	cp misc/tools-source/install_wrapper.sh build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper/install_wrapper
	chmod +x build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper/install_wrapper
	ln -sf install_wrapper build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper/install
	ln -sf install_wrapper build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper/cp
	ln -sf install_wrapper build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper/ln
	ln -sf install_wrapper build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper/mv
	wrappers="$wrappers install_wrapper install cp ln mv"

	# Remove unknown, spurious wrappers from potential prev. run
	wrappers=" $wrappers " # add whitespace for quick match below
	for w in $(ls build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper/); do
		[ "${wrappers// $w /}" = "$wrappers" ] &&
			rm -f build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper/$w
	done

	# Various small tools
	for x in getdu getfiles fl_wrparse fl_stparse; do
		echo_status "Building $toolsdir/bin/$x"
		$BUILDCC -Wall -O2 misc/tools-source/$x.c \
		          -o build/$SDECFG_ID/TOOLCHAIN/$toolsdir/bin/$x.$$ || exit 1
		mv build/$SDECFG_ID/TOOLCHAIN/$toolsdir/bin/$x.$$ \
		   build/$SDECFG_ID/TOOLCHAIN/$toolsdir/bin/$x
	done

	# Flist Wrapper Library
	if [ "$SDECFG_FLIST" = "flwrapper" ]; then
		echo_status "Building $toolsdir/lib/fl_wrapper.so"

		tmp=build/$SDECFG_ID/TOOLCHAIN/$toolsdir/wrapper/tmp.$$
		$BUILDCC -Wall -Os misc/archive/hello.c -o $tmp

		FLWRAPPER_LIBC=$(readelf --dynamic $tmp |
			sed -n 's/.*\[\(lib[cC].*\)]/\1/p')
		[ ! "$FLWRAPPER_LIBC" ] &&
		FLWRAPPER_LIBC=$(ldd $tmp |
			sed -n '/lib[cC]\./ { s/.* => //; s/[\t ]*\([^\t ]*\).*/\1/p }')
		rm -f $tmp

		if [ ! "$FLWRAPPER_LIBC" ]; then
			abort 'Unable to detect default libc for flwrapper'
		fi

		if [ $stagelevel -lt 2 ]; then
			FLWRAPPER_BASEDIR=-DFLWRAPPER_BASEDIR=\"$base\"
		else
			FLWRAPPER_BASEDIR=
		fi

		bash misc/tools-source/fl_wrapper.c.sh > src/fl_wrapper_$$.c
		$BUILDCC -O2 -shared -fPIC -Wall -Wno-format-truncation \
		         src/fl_wrapper_$$.c $FLWRAPPER_BASEDIR \
		         -DFLWRAPPER_LIBC=\"${FLWRAPPER_LIBC##*/}\" \
		         -o build/$SDECFG_ID/TOOLCHAIN/$toolsdir/lib/fl_wrapper.so.$$ -ldl || exit 1
		rm src/fl_wrapper_$$.c
		mv build/$SDECFG_ID/TOOLCHAIN/$toolsdir/lib/fl_wrapper.so.$$ \
		   build/$SDECFG_ID/TOOLCHAIN/$toolsdir/lib/fl_wrapper.so

		echo_status  "Testing $toolsdir/lib/fl_wrapper.so"
		if ! bash -c "LD_PRELOAD=\"\$LD_PRELOAD:build/\$SDECFG_ID/`
			`TOOLCHAIN/$toolsdir/lib/fl_wrapper.so\" date; `
			`exit \$?" >/dev/null 2>&1
		then
			echo_error "Detected a problem with the flist" \
			           "wrapper lib on your system."
			echo_error "Please specify another flist-creation" \
			           "system in your build configuration."
			rm -f build/$SDECFG_ID/TOOLCHAIN/$toolsdir/lib/fl_wrapper.so
			echo; exit 1
		fi
	fi

	# Create Parse-Config Collection
	echo_status "Creating $toolsdir/lib/parse-config"
	bash scripts/xfind.sh \
	     architecture/$arch/. kernel/$kernel/. package/. $(get_reverted `get_expanded target/%/. $targetchain`) misc/ -type f \
	     '(' -name 'parse-config' -o -name 'parse-config-[0-9]' ')' \
	     -printf '%f\t%p\n' | sed \
	     -e 's,^parse-config\t,5\t,g' -e 's,^parse-config-\(.\)\t,\1\t,g' | \
	     sort -n | gawk '{ $1="."; print; }' \
			> build/$SDECFG_ID/TOOLCHAIN/$toolsdir/lib/parse-config.$$
	mv build/$SDECFG_ID/TOOLCHAIN/$toolsdir/lib/parse-config.$$ \
	   build/$SDECFG_ID/TOOLCHAIN/$toolsdir/lib/parse-config
	
	bash scripts/xfind.sh \
	     architecture/$arch/. kernel/$kernel/. package/. $(get_reverted `get_expanded target/%/. $targetchain`) misc/ -type f \
	     -name 'parse-config-fixarch' \
	     -printf '%f\t%p\n' | sort | gawk '{ $1="."; print; }' \
			> build/$SDECFG_ID/TOOLCHAIN/$toolsdir/lib/parse-config-fixarch.$$
	mv build/$SDECFG_ID/TOOLCHAIN/$toolsdir/lib/parse-config-fixarch.$$ \
	   build/$SDECFG_ID/TOOLCHAIN/$toolsdir/lib/parse-config-fixarch

	# Create pkg_*_{pre,post}.conf files

	echo_status "Creating $toolsdir/lib/pkg_*_{pre,post}.conf"
	rm -f build/$SDECFG_ID/TOOLCHAIN/$toolsdir/lib/pkg_*_{pre,post}.conf
	for x in `grep "^X" config/$config/packages | cut -d ' ' -f 4,5 | tr ' ' '/'`; do
	   for y in  `echo package/$x/pkg_*_{pre,post}.conf`; do
	      if [ -f $y ]; then
		 echo " . $y" >> build/$SDECFG_ID/TOOLCHAIN/$toolsdir/lib/${y##*/}
	      fi
	   done
	done

	for y in `echo architecture/$arch/pkg_*_{pre,post}.conf`; do
		if [ -f $y ]; then
			echo " . $y" >> build/$SDECFG_ID/TOOLCHAIN/$toolsdir/lib/${y##*/}
		fi
	done

	for y in `echo kernel/$kernel/pkg_*_{pre,post}.conf`; do
		if [ -f $y ]; then
			echo " . $y" >> build/$SDECFG_ID/TOOLCHAIN/$toolsdir/lib/${y##*/}
		fi
	done

	for y in `echo target/$target/pkg_*_{pre,post}.conf`; do
		if [ -f $y ]; then
			echo " . $y" >> build/$SDECFG_ID/TOOLCHAIN/$toolsdir/lib/${y##*/}
		fi
	done

	echo -e "${wrappervars// /
}" | grep . | sort -u |
	while read x; do
		echo "export ${x}_WRAPPER_DEBUG=0	${x}_WRAPPER_BYPASS=0"
		echo "export ${x}_WRAPPER_OTHERS=''	${x}_WRAPPER_REMOVE=''"
		echo "export ${x}_WRAPPER_INSERT=''	${x}_WRAPPER_APPEND=''"
		echo "export ${x}_WRAPPER_FILTER=''	${x}_WRAPPER_APPEND_PO=''"
	done > build/$SDECFG_ID/TOOLCHAIN/$toolsdir/lib/wrapper-config.$$
	mv build/$SDECFG_ID/TOOLCHAIN/$toolsdir/lib/wrapper-config.$$ \
	   build/$SDECFG_ID/TOOLCHAIN/$toolsdir/lib/wrapper-config

	touch build/$SDECFG_ID/TOOLCHAIN/$toolsdir/.lastupdate
fi

exit 0