# WATCHOUT, THIS WILL ERASE YOUR .VIMRC & TESTED ONLY UNDER UBUNTU 17.10

LJVER=2.1.0-beta3 # LuaJIT
VMVER=8.0         # VIM
CFLAGS+=-pipe
MAKEFLAGS+=-j`nproc`
CC=clang
[ -z $1 ] || { CC=$1; }
export CC CFLAGS MAKEFLAGS
set -e
for k in ln cd mktemp pushd popd source echo wait sudo curl wget git $CC make python3 ldconfig
do  hash $k 1>&-
done

#libc-dev libtinfo-dev

# Manage python3 dependencies for deoplete behind vim8
sudo apt install python3-dev python3-pip python3-setuptools python3-wheel -qqy --no-install-recommends
pip3 install neovim

sudo ln luajit-$LJVER /usr/local/bin/luajit --symbolic --force

pushd $(mktemp --directory)
	# Install & extract LuaJIT
	curl http://luajit.org/download/LuaJIT-$LJVER.tar.gz --silent | tar xz

	# While using CPU for compiling LuaJIT
	# Download Vim8 in background
	curl ftp://ftp.vim.org/pub/vim/unix/vim-$VMVER.tar.bz2 --silent | tar xj &

	# Compile/build & install LuaJIT
	pushd LuaJIT-$LJVER
		make CC=$CC
		sudo make install
	popd

	# Wait for vim sources
	wait

	# Compile/build & install Vim
	pushd vim*
		./configure --quiet  \
		  --without-x        \
		  --disable-netbeans \
		  --enable-largefile \
		  --enable-multibyte \
		  --enable-python3interp \
		  --enable-luainterp \
		  --with-luajit      \
		  --with-lua-prefix=/usr/local \
		  
		make CC=$CC
		sudo make install
	popd

	rm `pwd` --force --recursive
popd

sudo ldconfig

pushd ~
	# Install  vim package manager
	source <(curl https://raw.githubusercontent.com/Shougo/dein.vim/master/bin/installer.sh --silent) .vim/pack 1> /dev/null
	# Download vim settings
	curl https://gist.githubusercontent.com/concatime/639ec7e4bda54319530e688cc887820f/raw/.vimrc --remote-name
popd

echo You can now run vim!