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# Copyright 1999-2024 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8

# Doc generation requires pulls in asciidoc/ruby, we'll prebuild docs
# for release ebuilds.
# Scripting for this is in sam-gentoo-scripts.
: ${FVWM3_DOCS_PREBUILT:=1}

PYTHON_COMPAT=( python3_{10..12} )
GO_OPTIONAL=1
inherit autotools desktop flag-o-matic go-module python-single-r1 toolchain-funcs

DESCRIPTION="A multiple large virtual desktop window manager derived from fvwm"
HOMEPAGE="https://www.fvwm.org/"

if [[ ${PV} == 9999 ]]; then
	inherit git-r3
	EGIT_REPO_URI="https://github.com/fvwmorg/fvwm3.git"
	EGIT_BRANCH="main"
else
	SRC_URI="https://github.com/fvwmorg/fvwm3/releases/download/${PV}/${P}.tar.gz"
	if [[ ${FVWM3_DOCS_PREBUILT} == 1 ]]; then
		SRC_URI+=" https://deps.gentoo.zip/x11-wm/fvwm3/${P}-docs.tar.xz"
	fi
	KEYWORDS="~amd64 ~riscv"
fi

LICENSE="GPL-2+ FVWM
	go? ( Apache-2.0 BSD MIT )"
SLOT="0"
IUSE="bidi debug +go netpbm nls perl readline stroke svg tk lock"
REQUIRED_USE="
	${PYTHON_REQUIRED_USE}"

DOCS=( NEWS )

if [[ ${PV} == 9999 ]]; then
	DOCS+=(
		dev-docs/COMMANDS
		dev-docs/DEVELOPERS.md
		dev-docs/INSTALL.md
		dev-docs/PARSING.md
		dev-docs/TODO.md
		dev-docs/NEW-COMMANDS.md
	)
fi

BDEPEND="
	virtual/pkgconfig
	app-arch/unzip
	go? ( >=dev-lang/go-1.14 )
"

if [[ ${FVWM3_DOCS_PREBUILT} == 0 ]]; then
	BDEPEND+="
		dev-libs/libxslt
		dev-ruby/asciidoctor
	"
fi

RDEPEND="${PYTHON_DEPS}
	${COMMON_DEPEND}
	!x11-wm/fvwm
	dev-lang/perl
	dev-libs/glib:2
	dev-libs/libevent:=
	media-libs/fontconfig
	media-libs/libpng:=
	sys-libs/zlib
	x11-libs/libICE
	x11-libs/libSM
	x11-libs/libX11
	x11-libs/libXau
	x11-libs/libxcb
	x11-libs/libXcursor
	x11-libs/libXdmcp
	x11-libs/libXext
	x11-libs/libXfixes
	x11-libs/libXft
	x11-libs/libXpm
	x11-libs/libXrandr
	x11-libs/libXrender
	bidi? ( dev-libs/fribidi )
	lock? ( x11-misc/xlockmore )
	netpbm? ( media-libs/netpbm )
	perl? ( tk? (
			dev-lang/tk
			dev-perl/Tk
			>=dev-perl/X11-Protocol-0.56
		)
	)
	readline? (
		sys-libs/ncurses:=
		sys-libs/readline:=
	)
	stroke? ( dev-libs/libstroke )
	svg? (
		gnome-base/librsvg:2
		x11-libs/cairo
	)"

DEPEND="${COMMON_DEPEND}
	x11-base/xorg-proto"

PATCHES=(
	"${FILESDIR}"/fvwm3-1.1.0-fix-go-detection-v2.patch
)

src_prepare() {
	default
	use go && ( sed -e 's/GOFLAGS=-ldflags="-s -w"/GOFLAGS=/' \
		-i bin/FvwmPrompt/Makefile.am || die )

	eautoreconf
}

src_configure() {
	# Recommended by upstream for release. Doesn't really matter for live ebuilds.
	append-flags -fno-strict-aliasing

	# Signed chars are required.
	for arch in arm arm64 ppc ppc64; do
		use $arch && append-flags -fsigned-chars
	done

	local myconf=(
		--with-imagepath=/usr/include/X11/bitmaps:/usr/include/X11/pixmaps:/usr/share/icons/fvwm
		--enable-package-subdirs
		$(use_enable bidi)
		$(use_enable go golang)
		$(use_enable nls)
		$(use_enable nls iconv)
		$(use_enable perl perllib)
		$(use_with readline readline-library)
		$(use_enable svg rsvg)
		--enable-png
	)

	if [[ ${FVWM3_DOCS_PREBUILT} == 0 ]]; then
		myconf+=(
			--enable-mandoc
			--enable-htmldoc
		)
	else
		# Probably not required, but let's be safe
		myconf+=(
			--disable-mandoc
			--disable-htmldoc
		)
	fi

	use readline && myconf+=( --without-termcap-library )

	econf "${myconf[@]}"
}

src_compile() {
	PREFIX="${EPREFIX}/usr" emake AR="$(tc-getAR)"
}

src_install() {
	# Since we're manually handling docs installation, let's do that first
	# and then install the rest of the files via emake
	local HTML_DOCS
	if [[ ${FVWM3_DOCS_PREBUILT} == 1 ]] ; then
		doman "${WORKDIR}"/${P}-docs/man/**/*.[0-8]
		HTML_DOCS="${WORKDIR}"/${P}-docs/html/*
	else
		HTML_DOCS="${S}"/doc/*.html
		doman "${S}"/doc/*.[0-8]
	fi

	einstalldocs

	emake DESTDIR="${ED}" prefix="/usr" exec_prefix="/usr" datarootdir="/usr/share" install

	exeinto /etc/X11/Sessions
	newexe - ${PN} <<-EOF
	#!/bin/sh
	${PN}
	EOF

	python_scriptinto "/usr/bin"
	python_doscript "${ED}/usr/bin/FvwmCommand" "${ED}/usr/bin/fvwm-menu-desktop"

	make_session_desktop fvwm3 /usr/bin/fvwm3

}

pkg_postinst() {
	if use go; then
		ewarn "FvwmPrompt has been installed, it provides the functionality of both FvwmCommand and FvwmConsole."
		ewarn "For compatibility with the existing fvwm2 configurations, the ebuild will install a FvwmCommand wrapper."
		ewarn "If you need FvwmConsole, install ${PN} with USE=\"-go\";"
		ewarn "however FvwmPrompt and FvwmCommand will not be installed."
	else
		ewarn "FvwmConsole has been installed, but FvwmCommand and FvwmPrompt are no longer included in this ebuild."
		ewarn "If you need FvwmPrompt or FvwmCommand, install ${PN} with USE=\"go\"."
		ewarn "In that case, FvwmPrompt will replace FvwmConsole and provide the same functionality in a more flexible way."
	fi
}