#!/bin/bash -e

INDEX_DIR="/var/lib/scratchpkg/index"

PKG=(
linux-api-headers
man-pages
glibc
tzdata
zlib
file
readline
m4
bc
binutils
gmp
mpfr
libmpc
gcc
bzip2
pkg-config
ncurses
attr
acl
libcap
sed
shadow
psmisc
iana-etc
bison
flex
grep
bash
libtool
gdbm
gperf
expat
inetutils
perl
perl-xml-parser
intltool
autoconf
automake
xz
kmod
gettext
elfutils
procps-ng
e2fsprogs
coreutils
diffutils
gawk
findutils
groff
grub
less
gzip
iproute2
kbd
libpipeline
make
patch
sysklogd
sysvinit
eudev
util-linux
man-db
tar
texinfo
vim
filesystem
base-meta
openssl
ca-certificates-utils
ca-certificates
wget
curl
httpup
scratchpkg
rc-init
)

adjustingtoolchain() {
	echo "Adjusting toolchain"
	mv -v /tools/bin/{ld,ld-old}
	mv -v /tools/$(uname -m)-pc-linux-gnu/bin/{ld,ld-old}
	mv -v /tools/bin/{ld-new,ld}
	ln -sv /tools/bin/ld /tools/$(uname -m)-pc-linux-gnu/bin/ld

	gcc -dumpspecs | sed -e 's@/tools@@g'                   \
		-e '/\*startfile_prefix_spec:/{n;s@.*@/usr/lib/ @}' \
		-e '/\*cpp:/{n;s@$@ -isystem /usr/include@}' >      \
		`dirname $(gcc --print-libgcc-file-name)`/specs
		
	echo 'int main(){}' > dummy.c
	cc dummy.c -v -Wl,--verbose &> dummy.log
	readelf -l a.out | grep ': /lib'

	grep -o '/usr/lib.*/crt[1in].*succeeded' dummy.log
	grep -B1 '^ /usr/include' dummy.log
	grep 'SEARCH.*/usr/lib' dummy.log |sed 's|; |\n|g'
	grep "/lib.*/libc.so.6 " dummy.log
	grep found dummy.log
	rm -v dummy.c a.out dummy.log
	sleep 5
}	

for i in ${PKG[@]}; do
	if [[ -d "$INDEX_DIR/$i" ]]; then
		echo "$i is installed"
	else
		echo
		echo "Installing $i..."
		case $i in
			glibc)
				ln -sfv /tools/lib/gcc /usr/lib
				ln -sfv /tools/bin/m4 /usr/bin
				scratch -i -id -p $i || exit 1
				adjustingtoolchain
				rm /usr/lib/gcc
				rm /usr/bin/m4
				;;
			bc)
				ln -sfv /tools/lib/libncursesw.so.6 /usr/lib/libncursesw.so.6
				ln -sfv libncurses.so.6 /usr/lib/libncurses.so
				scratch -i -id -p $i || exit 1
				rm /usr/lib/{libncurses.so,libncursesw.so.6}
				;;
			gcc)
				scratch -id -p $i || exit 1
				rm -f /usr/lib/{libgcc_s.so{,.1},libstdc++.{a,so{,.6}}}
				scratch -i -id -p $i || exit 1
				;;
			bash|coreutils|filesystem|scratchpkg)
				# scratchpkg is hardly depends on bash and coreutils
				# so, ignore conflict, mean just replacing the files
				scratch -ic -i -id -p $i || exit 1
				;;
			perl)
				echo "127.0.0.1 localhost $(hostname)" > /etc/hosts
				scratch -id -p $i || exit 1
				rm /etc/hosts
				rm /usr/bin/perl
				scratch -i -id -p $i || exit 1
				;;
			base-meta)
				scratch -i -p $i || exit 1
				;;
			*)
				scratch -i -id -p $i || exit 1
				;;
		esac
	fi
done

exit 0