# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7

inherit toolchain-funcs

# download once per week
WEEK=$(printf "%(%Y-week-%W)T")

DESCRIPTION="Simple, fast, safe, compiled. For developing maintainable software."
HOMEPAGE="https://vlang.io"
SRC_URI="
	https://github.com/vlang/v/archive/master.tar.gz -> v-${WEEK}.tar.gz
	https://github.com/vlang/vc/archive/master.tar.gz -> vc-${WEEK}.tar.gz
"

LICENSE="MIT"
SLOT="0"
KEYWORDS="~amd64 ~arm64"

# FIXME v build-tools pulls a number of modules
RESTRICT="network-sandbox"

S="${WORKDIR}/v-master"

src_compile() {
	CC=$(tc-getCC)
	
	# bootstrap the compiler using its C translation and then rebuild from V
	${CC} ${CFLAGS} -g -std=gnu11 -o v ${WORKDIR}/vc-master/v.c ${LDFLAGS} -lm -lpthread || die
	./v -prod self || die
	
	# build tools
	./v build-tools || die
	
	# tell V it is managed by a package manager
	touch cmd/tools/.disable_autorecompilation
}

src_install() {
	# compiler entry point
	exeinto /usr/lib/vlang
	doexe v
	dosym /usr/lib/vlang/v /usr/bin/v
	
	# v subcommands
	exeinto /usr/lib/vlang/cmd/tools
	doexe cmd/tools/{check_os_api_parity,fast_job,map_fuzz,missdoc,oldv,performance_compare,repeat,test_if_v_test_system_works,test_os_process,vbin2v,vbuild-examples,vbuild-tools,vbuild-vbinaries,vcheck-md,vcomplete,vcreate,vfmt,vpm,vrepl,vself,vsetup-freetype,vsymlink,vtest,vtest-all,vtest-cleancode,vtest-fmt,vtest-parser,vtest-self,vtracev,vup,vwipe-cache}
	
	# standard library
	insinto /usr/lib/vlang
	doins -r vlib
	
	# docs
	insinto /usr/lib/vlang/cmd/v
	doins -r cmd/v/help
	
	insinto /usr/share/vlang
	doins -r examples
	dodoc -r doc
	einstalldocs
}