dev-ml/tar: initial import

Signed-off-by: Alessandro Barbieri <lssndrbarbieri@gmail.com>

dev-ml/tar/tar-2.0.1.ebuild

@@ -0,0 +1,60 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit dune multiprocessing
+
+MYPN="ocaml-${PN}"
+
+DESCRIPTION="Pure OCaml library to read and write tar files"
+HOMEPAGE="https://github.com/mirage/ocaml-tar"
+SRC_URI="https://github.com/mirage/${MYPN}/archive/refs/tags/v${PV}.tar.gz -> ${P}.tar.gz"
+S="${WORKDIR}/${MYPN}-${PV}"
+
+LICENSE="ISC"
+SLOT="0/${PV}"
+KEYWORDS="~amd64"
+IUSE="mirage ocamlopt test unix"
+
+RDEPEND="
+	dev-ml/camlp-streams
+	dev-ml/cstruct
+	dev-ml/re
+	dev-ml/lwt
+
+	mirage? (
+		dev-ml/io-page
+		dev-ml/mirage-block
+		dev-ml/mirage-kv
+		dev-ml/ptime
+	)
+"
+DEPEND="
+	${RDEPEND}
+	test? (
+		dev-ml/mirage-block-unix
+		>=dev-ml/ounit-2[lwt]
+	)
+"
+
+RESTRICT="!test? ( test )"
+REQUIRED_USE="
+	test? ( mirage unix )
+"
+
+src_compile() {
+	local pkgs="tar"
+	for u in mirage unix ; do
+		if use ${u} ; then
+			pkgs="${pkgs},tar-${u}"
+		fi
+	done
+	dune build -p "${pkgs}" -j $(makeopts_jobs) || die
+}
+
+src_install() {
+	dune_src_install tar
+	use mirage && dune_src_install tar-mirage
+	use unix && dune_src_install tar-unix
+}