dev-lua/ldoc: migrate to lua-single.eclass

No point in making this multi-impl regardless of the fact it installs
some Lua modules, from what I can tell LDoc is meant to be always used
as a command-line tool.

Closes: https://bugs.gentoo.org/752897
Signed-off-by: Marek Szuba <[email protected]>

dev-lua/ldoc/files/ldoc-1.4.6-slotted_lua.patch

@@ -0,0 +1,21 @@
+Do not try to auto-guess Lua directories from the path to the interpreter,
+it does not work with the wrapper set up by lua-single.eclass. Use the
+values of LUA, LUA_BINDIR and LUA_SHAREDIR provided by the ebuild instead.
+
+--- a/makefile
++++ b/makefile
+@@ -1,13 +1,9 @@
+-LUA= $(shell echo `which lua`)
+-LUA_BINDIR= $(shell echo `dirname $(LUA)`)
+-LUA_PREFIX= $(shell echo `dirname $(LUA_BINDIR)`)
+-LUA_SHAREDIR=$(LUA_PREFIX)/share/lua/5.1
+
+ ldoc:
+
+ install: install_parts
+ mkdir -p $(DESTDIR)$(LUA_BINDIR)
+- echo "lua $(LUA_SHAREDIR)/ldoc.lua \$$*" > $(DESTDIR)$(LUA_BINDIR)/ldoc
++ echo "$(LUA) $(LUA_SHAREDIR)/ldoc.lua \$$*" > $(DESTDIR)$(LUA_BINDIR)/ldoc
+ chmod +x $(DESTDIR)$(LUA_BINDIR)/ldoc
+
+ install_luajit: install_parts

dev-lua/ldoc/ldoc-1.4.6-r100.ebuild

@@ -0,0 +1,35 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+LUA_COMPAT=( lua5-1 luajit )
+
+inherit lua-single
+
+DESCRIPTION="A LuaDoc-compatible documentation generation system"
+HOMEPAGE="https://stevedonovan.github.io/ldoc/"
+SRC_URI="https://github.com/stevedonovan/LDoc/archive/${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~ppc ~ppc64 ~x86"
+
+REQUIRED_USE="${LUA_REQUIRED_USE}"
+
+RDEPEND="$(lua_gen_cond_dep '
+ dev-lua/penlight[${LUA_USEDEP}]
+')"
+DEPEND="${RDEPEND}"
+
+PATCHES=(
+ "${FILESDIR}/${PN}-1.4.6-mkdir.patch"
+ "${FILESDIR}/${PN}-1.4.6-slotted_lua.patch"
+)
+
+S="${WORKDIR}/LDoc-${PV}"
+RESTRICT="test"
+
+src_install() {
+ emake DESTDIR="${ED}" LUA_BINDIR="${EPREFIX}/usr/bin" LUA_SHAREDIR="$(lua_get_lmod_dir)" install
+}

profiles/package.mask

@@ -508,6 +508,7 @@ dev-lua/luacrypto
 =dev-libs/efl-1.25.1-r10
 >=dev-lua/busted-2.0.0-r100
 >=dev-lua/dkjson-2.5-r100
+>=dev-lua/ldoc-1.4.6-r100
 >=dev-lua/lpeg-1.0.2-r100
 >=dev-lua/lua-bit32-5.3.5-r100
 >=dev-lua/lua-zlib-1.2-r100