eclass/dune.eclass: fix dune-install function

Support EAPI 8 and drop support for EAPI 5.
Set DUNE_PKG_NAME to PN by default.
Move "Move docs to the appropriate place" block to dune-install
to make dune-install now handle a list of subpackages correctly.
Use ebegin and eend for dune calls instead of "|| die".
Thanks to ULM for bash fixes.

Signed-off-by: Maciej Barć <[email protected]>

eclass/dune.eclass

@@ -8,7 +8,7 @@
 # ML <[email protected]>
 # @AUTHOR:
 # Rafael Kitover <[email protected]>
-# @SUPPORTED_EAPIS: 5 6 7
+# @SUPPORTED_EAPIS: 6 7 8
 # @BLURB: Provides functions for installing Dune packages.
 # @DESCRIPTION:
 # Provides dependencies on dDne and OCaml and default src_compile, src_test and
@@ -19,9 +19,10 @@
 # @DESCRIPTION:
 # Sets the actual Dune package name, if different from Gentoo package name.
 # Set before inheriting the eclass.
+: ${DUNE_PKG_NAME:-${PN}}
 
 case ${EAPI:-0} in
-	5|6|7) ;;
+	6|7|8) ;;
 	*) die "${ECLASS}: EAPI ${EAPI} not supported" ;;
 esac
 
@@ -32,7 +33,7 @@ EXPORT_FUNCTIONS src_compile src_test src_install
 
 RDEPEND=">=dev-lang/ocaml-4:=[ocamlopt?] dev-ml/dune:="
 case ${EAPI:-0} in
-	5|6)
+	6)
 		DEPEND="${RDEPEND} dev-ml/dune"
 		;;
 	*)
@@ -42,38 +43,51 @@ case ${EAPI:-0} in
 esac
 
 dune_src_compile() {
-	dune build @install --profile release || die
+	ebegin "Building"
+	dune build @install --profile release
+	eend $? || die
 }
 
 dune_src_test() {
-	dune runtest || die
+	ebegin "Testing"
+	dune runtest
+	eend $? || die
 }
 
 # @FUNCTION: dune-install
 # @USAGE: <list of packages>
 # @DESCRIPTION:
 # Installs the dune packages given as arguments. For each "${pkg}" element in
 # that list, "${pkg}.install" must be readable from "${PWD}/_build/default"
+#
+# Example use:
+# @CODE
+# dune-install menhir menhirLib menhirSdk
+# @CODE
 dune-install() {
+	local -a pkgs=( "${@}" )
+	[[ ${#pkgs[@]} -eq 0 ]] && pkgs=( "${DUNE_PKG_NAME}" )
+
+	local -a myduneopts=(
+		--prefix="${ED%/}/usr"
+		--libdir="${D%/}$(ocamlc -where)"
+		--mandir="${ED%/}/usr/share/man"
+	)
 	local pkg
-	for pkg ; do
-		dune install \
-			--prefix="${ED%/}/usr" \
-			--libdir="${D%/}$(ocamlc -where)" \
-			--mandir="${ED%/}/usr/share/man" \
-			"${pkg}" || die
+	for pkg in "${pkgs[@]}" ; do
+		ebegin "Installing ${pkg}"
+		dune install ${myduneopts[@]} ${pkg}
+		eend $? || die
+
+		# Move docs to the appropriate place.
+		if [ -d "${ED%/}/usr/doc/${pkg}" ] ; then
+			mkdir -p "${ED%/}/usr/share/doc/${PF}/" || die
+			mv "${ED%/}/usr/doc/${pkg}" "${ED%/}/usr/share/doc/${PF}/" || die
+			rm -rf "${ED%/}/usr/doc" || die
+		fi
 	done
 }
 
 dune_src_install() {
-	local pkg="${1:-${DUNE_PKG_NAME:-${PN}}}"
-
-	dune-install "${pkg}"
-
-	# Move docs to the appropriate place.
-	if [ -d "${ED%/}/usr/doc/${pkg}" ] ; then
-		mkdir -p "${ED%/}/usr/share/doc/${PF}/" || die
-		mv "${ED%/}/usr/doc/${pkg}/"* "${ED%/}/usr/share/doc/${PF}/" || die
-		rm -rf "${ED%/}/usr/doc" || die
-	fi
+	dune-install ${1:-${DUNE_PKG_NAME}}
 }