# Copyright 1999-2022 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8

DESCRIPTION="Verification-aware programming language"
HOMEPAGE="https://dafny.org/"
SRC_URI="https://github.com/dafny-lang/dafny/releases/download/v${PV}/dafny-${PV}-x64-ubuntu-16.04.zip"

LICENSE="MIT"
SLOT="0"
KEYWORDS="-* ~amd64"  # Binaries are compiled only for x86_64.
REQUIRED_USE="elibc_glibc"

RDEPEND="
	dev-libs/userspace-rcu
	dev-util/lttng-ust:0/2.12
	sci-mathematics/z3
"
BDEPEND="app-arch/unzip"

S="${WORKDIR}"/dafny
QA_PREBUILT="*"

src_prepare() {
	default

	# Remove bundled z3.
	# NOTICE: New versions do not need the bundled one but older versions
	# hardcoded the path relative to "dafny" binary.
	# While bumping make sure to verify that system's "z3" is used
	# by, for example, compiling/verifying a simple dafny program.
	rm -r z3 || die
}

src_install() {
	local dest=/opt/dafny

	insinto ${dest}
	# Maybe too general, but this installation mode matched how it arrives.
	insopts -m0755
	doins "${S}"/*

	local bin
	for bin in DafnyServer dafny ; do
		dosym ../../${dest}/${bin} /usr/bin/${bin}
	done

	# Make "dafny-server" clients happy.
	dosym ../../${dest}/DafnyServer /usr/bin/dafny-server
}