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# Copyright 1999-2025 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
# TODO: vim-plugin, although it's not clear how to make it work here
inherit elisp-common dune edo
DESCRIPTION="Context sensitive completion for OCaml in Vim and Emacs"
HOMEPAGE="https://github.com/ocaml/merlin/"
SRC_URI="https://github.com/ocaml/${PN}/releases/download/v${PV}-503/${P}-503.tbz"
LICENSE="MIT"
SLOT="0/${PV}"
KEYWORDS="~amd64"
IUSE="emacs +ocamlopt test"
RESTRICT="!test? ( test )"
RDEPEND="
>=dev-lang/ocaml-5.3.0 <dev-lang/ocaml-5.4.0
dev-ml/csexp:=
dev-ml/yojson:=
emacs? (
>=app-editors/emacs-23.1:*
app-emacs/auto-complete
app-emacs/company-mode
)
"
DEPEND="
${RDEPEND}
"
# NOTICE: Block dev-ml/seq (which is a back-port of code to ocaml <4.07)
# because it breaks merlin builds.
# https://github.com/ocaml/merlin/issues/1500
BDEPEND="
dev-ml/findlib
test? (
app-misc/jq
dev-ml/alcotest
dev-ml/ppxlib
)
"
SITEFILE="50${PN}-gentoo.el"
DUNE_PKG_NAMES_OTHER=(
dot-merlin-reader
ocaml-index
merlin-lib
)
src_unpack() {
default
if has_version "=dev-lang/ocaml-5.3*" ; then
edo mv "${P}-503" "${S}"
else
die "The installed version of OCaml is not yet supported"
fi
}
src_prepare() {
default
# Handle ELisp installation via the Emacs Eclass.
rm emacs/dune || die
# This test runs only inside a git repo,
# it is not included in merlin release for ocaml 4.12.
if [[ -f tests/test-dirs/occurrences/issue1404.t ]] ; then
rm tests/test-dirs/occurrences/issue1404.t || die
fi
rm -r tests/test-dirs/locate/context-detection/cd-mod_constr.t || die
# Remove seq references from dune build files.
sed -i 's|seq||g' src/frontend/ocamlmerlin/dune || die
# Remove Menhir requirement.
# > MenhirLib.StaticVersion.require_20201216
sed -i src/ocaml/preprocess/parser_raw.ml \
-e "s|MenhirLib.StaticVersion.require_.*|()|g" \
|| die
}
src_compile() {
# This is a minimal compilation set to avoid the "menhir" dependency.
# See the readme: https://github.com/ocaml/merlin/blob/main/README.md
dune-compile "${DUNE_PKG_NAMES_OTHER[@]}" "${PN}"
if use emacs ; then
# iedit isn't packaged yet
rm emacs/merlin-iedit.el || die
local -x BYTECOMPFLAGS="-L emacs"
elisp-compile ./emacs/*.el
fi
}
src_test() {
dune-test "${DUNE_PKG_NAMES_OTHER[@]}"
# Dune test dance:
# Testing not all packages removes some needed files for the install step.
# We have to compile again, luckily this time most of the build is cached.
dune-compile "${DUNE_PKG_NAMES_OTHER[@]}" "${PN}"
}
src_install() {
dune_src_install
if use emacs ; then
elisp-install "${PN}" ./emacs/*.el{,c}
elisp-site-file-install "${FILESDIR}/${SITEFILE}"
fi
}
pkg_postinst() {
use emacs && elisp-site-regen
}
pkg_postrm() {
use emacs && elisp-site-regen
}
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