build

#!/bin/bash
set -euo pipefail

debug=
release=
if [[ $# = 0 ]]; then
	debug=true
	release=true
fi
for target do
	case $target in
		(debug)   debug=true;;
		(release) release=true;;
		(*) >&2 echo "unknown target: $target"; exit 1;;
	esac
done

git config alias.build >/dev/null || git config alias.build '!f(){ git show origin/HEAD:build | bash -s - "$@";};f'
mkdir -p target
git check-ignore -q target || echo '/target/' >> "$(git rev-parse --git-common-dir)/info/exclude"
fail() {
	set +x
	>&2 echo "[$1] $2 failed"
	return 1
}

trap -- exit INT
set -x

declare -a configure_args=(\
	--cache-file="config.cache"
	--disable-shared
	--disable-install-doc
	--with-ext="openssl,psych,json,+"
	cflags="-march=native"
)

if [[ $(uname -s) = Darwin ]]; then
	brew install autoconf openssl@3 libyaml gmp
	configure_args+=(
	--with-libyaml-dir="$(brew --prefix libyaml)"
	--with-openssl-dir="$(brew --prefix openssl@3)"
	--with-gmp-dir="$(brew --prefix gmp)"
)
else
	sudo apt-get install --yes --no-install-recommends autoconf openssl libyaml-dev libgmp-dev zlib1g-dev
fi

./autogen.sh
nproc=$(getconf _NPROCESSORS_ONLN)

if [[ $debug ]]; then
	mkdir -p target/debug
	cd target/debug

	./config.status --recheck ||
		../../configure \
		--prefix="$HOME/.ruby/debug" \
		"${configure_args[@]}" \
		--enable-devel \
		--enable-debug-env \
		cppflags="-DRUBY_DEBUG=1 -DUSE_RUBY_DEBUG_LOG=1" \
		optflags="-O0 -fno-omit-frame-pointer" \
		|| fail debug configure

	make -j "$nproc" || fail debug make
	cd -
fi

if [[ $release ]]; then
	mkdir -p target/release
	cd target/release

	./config.status --recheck ||
		../../configure \
		--prefix="$HOME/.ruby/head" \
		"${configure_args[@]}" \
		|| fail release configure

	make -j "$nproc" || fail release make
	make install || fail release make install
fi