# Maintainer: stef <l0ls0fo2i@ctrlc.hu>
# Contributor: Timo Teräs <timo.teras@iki.fi>

pkgname=emacs
pkgver=26.2
pkgrel=0
pkgdesc="The extensible, customizable, self-documenting real-time display editor"
arch="all !aarch64"
depends="emacs-nox"
url="https://www.gnu.org/software/emacs/emacs.html"
license="GPL-3.0"
makedepends="autoconf automake linux-headers paxmark gawk
	librsvg-dev giflib-dev libxpm-dev gtk+2.0-dev gconf-dev alsa-lib-dev
	glib-dev fontconfig-dev libpng-dev
	libxml2-dev pango-dev tiff-dev libjpeg-turbo-dev ncurses-dev
	ncurses-libs gnutls-dev libxaw-dev"
subpackages="$pkgname-doc $pkgname-nox $pkgname-x11 $pkgname-gtk2"
source="ftp://ftp.gnu.org/gnu/emacs/emacs-$pkgver.tar.xz
	gamedir.patch"

prepare() {
	cd "$builddir/$1"
	default_prepare || return 1
	./autogen.sh || return 1
}

builddir="$srcdir/emacs-$pkgver"
_build_variant() {
	cd "$builddir/$1"
	shift
	CFLAGS=-fno-pie \
	LDFLAGS=-no-pie \
	./configure \
		--build=$CBUILD \
		--host=$CHOST \
		--prefix=/usr \
		--sysconfdir=/etc \
		--libexecdir=/usr/lib \
		--localstatedir=/var \
		--without-makeinfo \
		--with-gameuser=:games \
		"${@}" \
		|| return 1
	make
}

_build_x11() {
	_build_variant x11 \
		--with-x-toolkit=athena \
		--without-toolkit-scroll-bars \
		--without-dbus \
		--with-xft \
		--with-jpeg=yes \
		--with-tiff=yes
}

_build_gtk2() {
	 _build_variant gtk2 \
		--with-x-toolkit=gtk2 \
		--with-xft \
		--with-jpeg=yes \
		--with-tiff=no
}

_build_nox() {
	_build_variant nox \
		--without-sound \
		--without-x \
		--without-file-notification
}

build() {
	cd "$builddir"
	mkdir -p nox
	mv * nox || true
	cp -a nox gtk2
	cp -a nox x11
	_build_x11
	_build_nox
	_build_gtk2
}

package() {
	mkdir -p "$pkgdir"
}

doc() {
	mkdir -p "$subpkgdir"
	cd "$builddir/gtk2"
	make DESTDIR="$subpkgdir" install
	# remove conflict with ctags package
	mv "$subpkgdir"/usr/share/man/man1/ctags.1.gz "$subpkgdir"/usr/share/man/man1/ctags.emacs.1.gz
	# only keep info and man directories, all other is in the specific package
	rm -rf "$subpkgdir"/usr/bin \
		"$subpkgdir"/usr/lib \
		"$subpkgdir"/usr/share/appdata \
		"$subpkgdir"/usr/share/applications \
		"$subpkgdir"/usr/share/emacs \
		"$subpkgdir"/usr/share/icons \
		"$subpkgdir"/var
}

_subpackage() {
	cd "$builddir/$1"
	make DESTDIR="$subpkgdir" install

	# remove conflict with ctags package
	mv "$subpkgdir"/usr/bin/ctags "$subpkgdir"/usr/bin/ctags.emacs
	rm -rf "$subpkgdir"/usr/share/info \
		"$subpkgdir"/usr/share/man

	# fix user/root permissions on usr/share files
	find "$subpkgdir"/usr/share/emacs/ -exec chown root:root {} \;
	find "$subpkgdir"/usr/lib -perm -g+s,g+x ! -type d -exec chmod g-s {} \;
	# fix perms on /var/games
	chmod 775 "$subpkgdir"/var/games
	chmod 775 "$subpkgdir"/var/games/emacs
	chmod 664 "$subpkgdir"/var/games/emacs/*
	chown -R root:games "$subpkgdir"/var/games
}

nox() {
	pkgdesc="$pkgdesc - without X11"
	depends="!emacs-x11 !emacs-gtk2"
	_subpackage nox
}

x11() {
	pkgdesc="$pkgdesc - with X11"
	depends="!emacs-nox !emacs-gtk2 hicolor-icon-theme desktop-file-utils"
	_subpackage x11
}

gtk2() {
	pkgdesc="$pkgdesc - with GTK2"
	depends="!emacs-nox !emacs-x11 hicolor-icon-theme desktop-file-utils"
	_subpackage gtk2
}

sha512sums="c223ff5c51ca8bdf887bacb2dc37b08a637d39ed6f887cc24f67397e46fe5fdb68f33f21b97300b985c749f32aa09080d33103271637ed4ce5d9f2ea34ce9fe1  emacs-26.2.tar.xz
8898f309aeaf274366849bd5c56c8e2a1be94dfee2f01b20f1700bf26203f49b9600237e5090fc3d8eaad3ea246f803ffd493d0c04cb3512084a4e3bf58f8f5e  gamedir.patch"