# Copyright 1999-2017 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2

EAPI=5
inherit eutils versionator toolchain-funcs

MY_PV=$(replace_version_separator 2 '_')

DESCRIPTION="A vi/ex clone"
HOMEPAGE="ftp://ftp.cs.pdx.edu/pub/elvis/"
SRC_URI="ftp://ftp.cs.pdx.edu/pub/elvis/${PN}-${MY_PV}.tar.gz"

LICENSE="Artistic"
SLOT="0"
KEYWORDS="amd64 ppc ppc64 x86 ~ppc-macos ~x86-macos ~m68k-mint ~sparc-solaris"
IUSE="X"

RDEPEND=">=sys-libs/ncurses-5.7-r7
	X? ( >=x11-proto/xproto-7.0.4
		>=x11-libs/libX11-1.0.0
		>=x11-libs/libXt-1.0.0
		>=x11-libs/libXpm-3.5.4.2
		>=x11-libs/libXft-2.1.8.2 )
	app-eselect/eselect-vi"
DEPEND="${RDEPEND}
	virtual/pkgconfig"

S=${WORKDIR}/${PN}-${MY_PV}

src_prepare() {
	epatch \
		"${FILESDIR}"/ft2.3-symbol-collision-fix.patch \
		"${FILESDIR}"/${P}-glibc-2.10.patch \
		"${FILESDIR}"/${P}-interix.patch
}

src_configure() {
	./configure \
		--libs="$($(tc-getPKG_CONFIG) --libs ncurses)" \
		--prefix="${EPREFIX}"/usr \
		--bindir="${EPREFIX}"/usr/bin \
		--datadir="${EPREFIX}"/usr/share/elvis \
		--docdir="${EPREFIX}"/usr/share/doc/${PF} \
		$(use_with X x) \
		|| die

	# Some Makefile fixups (must happen after configure)
	# Use our CFLAGS
	sed -i -e "s:gcc -O2:$(tc-getCC) ${CFLAGS}:" Makefile || die "sed 1 failed"

	# We'll install the man-pages ourselves
	sed -i -e '/^	sh instman.sh/d' Makefile || die "sed 2 failed"

	# Don't try to write to /etc
	sed -i -e 's,/etc/elvis,${ED}/etc/elvis,g' Makefile || die "sed 3 failed"

	# Use LDFLAGS
	sed -i -e "s#\$(CC) \$(CFLAGS)#\$(CC) \$(CFLAGS) ${LDFLAGS}#" Makefile || \
		die "sed 4 failed"
}

src_install() {
	dodir /usr/bin
	dodir /usr/share/man/man1
	dodir /usr/share/elvis
	dodir /usr/share/doc/${PF}
	dodir /etc
	emake install \
		PREFIX="${ED}"/usr \
		BINDIR="${ED}"/usr/bin \
		DATADIR="${ED}"/usr/share/elvis \
		DOCDIR="${ED}"/usr/share/doc/${PF}

	# Install the man-pages
	mv doc/elvis.man doc/elvis.1
	mv doc/elvtags.man doc/elvtags.1
	mv doc/ref.man doc/ref.1
	doman doc/*.1

	# Fixup some READMEs
	sed -i -e "s,${ED},,g" "${ED}"/etc/elvis/README \
		|| die 'sed /etc/elvis/README failed'
	sed -i -e "s,${ED},,g" "${ED}"/usr/share/elvis/README \
		|| die 'sed /usr/share/elvis/README failed'
}

pkg_postinst() {
	einfo "Setting /usr/bin/vi symlink"
	eselect vi set "${PN}"
}

pkg_postrm() {
	einfo "Updating /usr/bin/vi symlink"
	eselect vi update
}