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# Copyright 2022-2025 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8

LUA_COMPAT=( lua5-{1,3,4} luajit )

inherit ninja-utils toolchain-funcs lua-single prefix

DESCRIPTION="Lua language server"
HOMEPAGE="https://github.com/LuaLS/lua-language-server"
SRC_URI="https://github.com/LuaLS/lua-language-server/releases/download/${PV}/${P}-submodules.zip -> ${P}.zip"
S="${WORKDIR}"

LICENSE="MIT"
SLOT="0"
KEYWORDS="~amd64 ~x86"
IUSE="llvm-libunwind test"
REQUIRE_USE="${LUA_REQUIRED_USE}"

DEPEND="
	${LUA_DEPS}
	sys-libs/binutils-libs
"
RDEPEND="${DEPEND}"
BDEPEND="
	app-alternatives/ninja
	app-arch/unzip
	!llvm-libunwind? ( sys-libs/libunwind )
	llvm-libunwind? ( llvm-runtimes/libunwind )
"
RESTRICT="!test? ( test )"

src_prepare() {
	# Remove hardcoded gcc references
	sed -i "/lm.cxx/a lm.cc = '$(tc-getCC)'" \
		make.lua || die
	sed -i "s/CC = gcc/ CC = ${tc-getCC}/" \
		3rd/lpeglabel/makefile || die
	# Shipped file doesn't respect CFLAGS/CXXFLAGS/LDFLAGS
	eapply "${FILESDIR}/3.16.0-linux.ninja.patch"
	eapply "${FILESDIR}/${PN}-${PV}-ucontext_t.patch"
	eapply_user
	sed -i -e "s/^cc = REPLACE_ME/cc = $(tc-getCC)/" \
		-e "s/^ar = REPLACE_AR/ar = $(tc-getAR)/" \
		-e "s/CFLAGS/${CFLAGS}/" \
		-e "s/CXXFLAGS/${CXXFLAGS}/" \
		-e "s/LDFLAGS/${LDFLAGS}/" \
		3rd/luamake/compile/ninja/linux.ninja || die
	if [[ $(tc-get-cxx-stdlib) == libc++ ]]; then
		sed -i "s/-lstdc++fs//" 3rd/luamake/compile/ninja/linux.ninja || die
	fi

	prefixify_ro "${FILESDIR}/wrapper.sh"
}

src_compile() {
	eninja -C 3rd/luamake -f compile/ninja/linux.ninja "$(usex test "test" "luamake")"
	use test && eninja -C 3rd/luamake -f compile/ninja/linux.ninja luamake
	./3rd/luamake/luamake init || die

	# Generated file doesn't respect CFLAGS/CXXFLAGS/LDFLAGS
	sed -i -e "s/^cc =.*./cc = REPLACE_ME/" \
		-e "s/^ar =.*./ar = REPLACE_AR/" \
		build/build.ninja || die

	eapply "${FILESDIR}/${PV}-build.ninja.patch"
	sed -i -e "s/REPLACE_ME/$(tc-getCC)/" \
		-e "s/REPLACE_AR/$(tc-getAR)/" \
		-e "s|LUAMAKE_PATH|${S}/3rd/luamake/luamake|" \
		-e "s/CFLAGS/${CFLAGS}/" \
		-e "s/CXXFLAGS/${CXXFLAGS}/" \
		-e "s/LDFLAGS/${LDFLAGS}/" \
		build/build.ninja || die
	if [[ $(tc-get-cxx-stdlib) == libc++ ]]; then
		sed -i "s/-lstdc++fs//" build/build.ninja || die
	fi

	use test && eninja -f build/build.ninja || eninja -f build/build.ninja all
	rm -rf meta/198256b1
}

src_install() {
	newbin "${T}/wrapper.sh" ${PN}

	into /opt/${PN}
	dobin bin/${PN}

	insinto /opt/${PN}/bin
	doins bin/main.lua

	insinto /opt/${PN}
	doins -r debugger.lua main.lua locale meta script

	einstalldocs
}