# Copyright 1999-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=5

# ebuild generated by hackport 0.4.4.9999

CABAL_FEATURES="bin test-suite"
CABAL_FEATURES+=" nocabaldep"
inherit haskell-cabal pax-utils

DESCRIPTION="A documentation-generation tool for Haskell libraries"
HOMEPAGE="https://www.haskell.org/haddock/"
SRC_URI="https://hackage.haskell.org/package/${P}/${P}.tar.gz"

LICENSE="BSD"
SLOT="0"
KEYWORDS="~amd64 ~x86 ~amd64-linux ~x86-linux"
IUSE=""

RESTRICT=test # tests are outdated

RDEPEND=""
DEPEND="${RDEPEND}
	>=dev-haskell/cabal-1.10
	>=dev-lang/ghc-7.4.1
	~dev-haskell/haddock-api-2.16.1
"

src_prepare() {
	if [[ ! -e "${S}/html" ]]; then
		ln -s resources/html "${S}/html" || die "Could not create symbolic link ${S}/html"
	fi
}

src_configure() {
	# create a fake haddock executable. it'll set the right version to cabal
	# configure, but will eventually get overwritten in src_compile by
	# the real executable.
	local exe="${S}/dist/build/haddock/haddock"
	mkdir -p $(dirname "${exe}")
	echo -e "#!/bin/sh\necho Haddock version ${PV}" > "${exe}"
	chmod +x "${exe}"

	# we use 'nocabaldep' to use ghc's bundled Cabal
	# as external one is likely to break our haddock
	# (known to work on 1.16.0 and breaks on 1.16.0.1!)
	haskell-cabal_src_configure \
		--flags=-in-ghc-tree \
		--ghc-options=-rtsopts \
		--with-haddock="${exe}" \
		--constraint="Cabal == $(cabal-version)"

}

src_compile() {
	# when building the (recursive..) haddock docs, change the datadir to the
	# current directory, as we're using haddock inplace even if it's built to be
	# installed into the system first.
	haddock_datadir="${S}" haskell-cabal_src_compile
	pax-mark -m "${S}/dist/build/haddock"
}

src_install() {
	cabal_src_install
	# haddock uses GHC-api to process TH source.
	# TH requires GHCi which needs mmap('rwx') (bug #299709)
	pax-mark -m "${D}/usr/bin/${PN}"
}