# Copyright 1999-2016 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

EAPI=5

AUTOTOOLS_AUTORECONF=true

inherit autotools-utils bash-completion-r1 flag-o-matic versionator

DESCRIPTION="Terminal multiplexer"
HOMEPAGE="http://tmux.github.io/"
SRC_URI="https://github.com/${PN}/${PN}/releases/download/${PV}/${P}.tar.gz"

LICENSE="ISC"
SLOT="0"
KEYWORDS="amd64"
IUSE="debug selinux vim-syntax kernel_FreeBSD kernel_linux"

CDEPEND="
	|| (
		=dev-libs/libevent-2.0*
		>=dev-libs/libevent-2.1.5-r4
	)
	kernel_linux? ( sys-libs/libutempter )
	kernel_FreeBSD? ( || ( >=sys-freebsd/freebsd-lib-9.0 sys-libs/libutempter ) )
	sys-libs/ncurses:0="
DEPEND="${CDEPEND}
	virtual/pkgconfig"
RDEPEND="${CDEPEND}
	selinux? ( sec-policy/selinux-screen )
	vim-syntax? (
		|| (
			app-editors/vim
			app-editors/gvim
		)
	)"

DOCS=( CHANGES FAQ README TODO )

PATCHES=( "${FILESDIR}"/${PN}-2.0-flags.patch )

src_prepare() {
	# bug 438558
	# 1.7 segfaults when entering copy mode if compiled with -Os
	replace-flags -Os -O2

	# regenerate aclocal.m4 to support earlier automake versions
	rm aclocal.m4 || die

	autotools-utils_src_prepare
}

src_configure() {
	local myeconfargs=(
		--sysconfdir="${EPREFIX}"/etc
		$(use_enable debug)
	)
	autotools-utils_src_configure
}

src_install() {
	autotools-utils_src_install

	newbashcomp examples/bash_completion_tmux.sh ${PN}

	docinto examples
	dodoc examples/*.conf

	if use vim-syntax; then
		insinto /usr/share/vim/vimfiles/syntax
		doins examples/tmux.vim

		insinto /usr/share/vim/vimfiles/ftdetect
		doins "${FILESDIR}"/tmux.vim
	fi
}

pkg_postinst() {
	if ! version_is_at_least 1.9a ${REPLACING_VERSIONS:-1.9a}; then
		echo
		ewarn "Some configuration options changed in this release."
		ewarn "Please read the CHANGES file in /usr/share/doc/${PF}/"
		ewarn
		ewarn "WARNING: After updating to ${P} you will _not_ be able to connect to any"
		ewarn "older, running tmux server instances. You'll have to use an existing client to"
		ewarn "end your old sessions or kill the old server instances. Otherwise you'll have"
		ewarn "to temporarily downgrade to access them."
		echo
	fi
}