# Copyright 1999-2018 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2

# To generate the man pages, unpack the upstream tarball and run:
# ./configure --enable-install-program=arch,coreutils,hostname,kill
# make
# cd ..
# tar cf - coreutils-*/man/*.[0-9] | xz > coreutils-<ver>-man.tar.xz

EAPI="6"

PYTHON_COMPAT=( python{2_7,3_4,3_5,3_6} )

inherit eutils flag-o-matic python-any-r1 toolchain-funcs

PATCH_VER="1.1"
DESCRIPTION="Standard GNU utilities (chmod, cp, dd, ls, sort, tr, head, wc, who,...)"
HOMEPAGE="https://www.gnu.org/software/coreutils/"
SRC_URI="mirror://gnu/${PN}/${P}.tar.xz
	mirror://gentoo/${P}-patches-${PATCH_VER}.tar.xz
	https://dev.gentoo.org/~whissi/dist/${PN}/${P}-patches-${PATCH_VER}.tar.xz
	mirror://gentoo/${P}-man.tar.xz
	https://dev.gentoo.org/~polynomial-c/dist/${P}-man.tar.xz"

LICENSE="GPL-3"
SLOT="0"
KEYWORDS="alpha amd64 arm arm64 hppa ia64 m68k ~mips ppc ppc64 s390 sh sparc x86 ~arm-linux ~x86-linux"
KEYWORDS+="~ppc-aix ~x64-cygwin ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos ~m68k-mint ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
IUSE="acl caps elibc_Cygwin elibc_glibc gmp hostname kill multicall nls selinux sep-usr static +stdbuf uptime test userland_BSD vanilla xattr"

LIB_DEPEND="acl? ( sys-apps/acl[static-libs] )
	caps? ( sys-libs/libcap )
	gmp? ( dev-libs/gmp:=[static-libs] )
	xattr? ( elibc_glibc? ( sys-apps/attr[static-libs] ) )"
RDEPEND="!static? ( ${LIB_DEPEND//\[static-libs]} )
	selinux? ( sys-libs/libselinux )
	nls? ( virtual/libintl )"
DEPEND="${RDEPEND}
	static? ( ${LIB_DEPEND} )
	app-arch/xz-utils
	test? (
		dev-lang/perl
		dev-perl/Expect
		elibc_glibc? (
			dev-util/strace
		)
		${PYTHON_DEPS}
		$(python_gen_any_dep 'dev-python/pyinotify[${PYTHON_USEDEP}]')
	)"
RDEPEND+="
	hostname? ( !sys-apps/net-tools[hostname] )
	kill? (
		!sys-apps/util-linux[kill]
		!sys-process/procps[kill]
	)
	!app-misc/realpath
	!<sys-apps/util-linux-2.13
	!<sys-apps/sandbox-2.10-r4
	!sys-apps/stat
	!net-mail/base64
	!sys-apps/mktemp
	!<app-forensics/tct-1.18-r1
	!<net-fs/netatalk-2.0.3-r4"

pkg_setup() {
	if use test ; then
		python-any-r1_pkg_setup
	fi
}

src_prepare() {
	if ! use vanilla ; then
		use_if_iuse unicode || rm -f "${WORKDIR}"/patch/000_all_coreutils-i18n.patch
		#rm "${WORKDIR}"/patch/001_all_coreutils-gen-progress-bar.patch || die
		eapply "${WORKDIR}"/patch/*.patch
	fi

	epatch "${FILESDIR}"/${PN}-8.22-mint.patch

	# fixup libstdbuf non-libtool stuff
	if [[ ${CHOST} == *-darwin* ]] ; then
		sed -i \
			-e "/src_libstdbuf_so_LDFLAGS = -shared/s:-shared:-dynamiclib -install_name ${EPREFIX}/usr/libexec/coreutils/libstdbuf.dylib:" \
			Makefile.in \
			|| die
	elif use elibc_Cygwin ; then
		epatch "${FILESDIR}"/${P}-cygwin-3.patch
		sed -i -e 's|\(libstdbuf\.so\)$(EXEEXT)|\1|g' Makefile.in || die
	fi
	sed -i \
		-e "s/libstdbuf\\.so/libstdbuf$(get_libname)/" \
		src/stdbuf.c \
		Makefile.in \
		configure \
		|| die

	eapply_user

	# Since we've patched many .c files, the make process will try to
	# re-build the manpages by running `./bin --help`.  When doing a
	# cross-compile, we can't do that since 'bin' isn't a native bin.
	# Also, it's not like we changed the usage on any of these things,
	# so let's just update the timestamps and skip the help2man step.
	set -- man/*.x
	touch ${@/%x/1}
	# docs depend on configure as well
	touch -r doc/stamp-vti configure

	# Avoid perl dep for compiled in dircolors default #348642
	if ! has_version dev-lang/perl ; then
		touch src/{dircolors,fs-is-local,fs}.h # more?
		touch ${@/%x/1}
	fi
}

src_configure() {
	local myconf=(
		--with-packager="Gentoo"
		--with-packager-version="${PVR} (p${PATCH_VER:-0})"
		--with-packager-bug-reports="https://bugs.gentoo.org/"
		--enable-install-program="arch,$(usev hostname),$(usev kill),$(usev stdbuf),$(usev uptime)"
		--enable-no-install-program="groups,$(usev !hostname),$(usev !kill),$(usev !stdbuf),su,$(usev !uptime)"
		--enable-largefile
		$(use caps || echo --disable-libcap)
		$(use_enable nls)
		$(use_enable acl)
		$(use_enable multicall single-binary)
		$(use_enable xattr)
		$(use_with gmp)
	)
	if tc-is-cross-compiler && [[ ${CHOST} == *linux* ]] ; then
		export fu_cv_sys_stat_statfs2_bsize=yes #311569
		export gl_cv_func_realpath_works=yes #416629
	fi

	export gl_cv_func_mknod_works=yes #409919
	use static && append-ldflags -static && sed -i '/elf_sys=yes/s:yes:no:' configure #321821
	use selinux || export ac_cv_{header_selinux_{context,flash,selinux}_h,search_setfilecon}=no #301782
	use userland_BSD && myconf+=( -program-prefix=g --program-transform-name=s/stat/nustat/ )
	# kill/uptime - procps
	# groups/su   - shadow
	# hostname    - net-tools
	econf "${myconf[@]}"
}

src_test() {
	# Known to fail with FEATURES=usersandbox (bug #439574):
	#   -  tests/du/long-from-unreadable.sh} (bug #413621)
	#   -  tests/rm/deep-2.sh (bug #413621)
	#   -  tests/dd/no-allocate.sh (bug #629660)
	if has usersandbox $FEATURES ; then
		ewarn "You are emerging ${P} with 'usersandbox' enabled." \
			"Expect some test failures or emerge with 'FEATURES=-usersandbox'!"
	fi

	# Non-root tests will fail if the full path isn't
	# accessible to non-root users
	chmod -R go-w "${WORKDIR}"
	chmod a+rx "${WORKDIR}"

	# coreutils tests like to do `mount` and such with temp dirs
	# so make sure /etc/mtab is writable #265725
	# make sure /dev/loop* can be mounted #269758
	mkdir -p "${T}"/mount-wrappers
	mkwrap() {
		local w ww
		for w in "$@" ; do
			ww="${T}/mount-wrappers/${w}"
			cat <<-EOF > "${ww}"
				#!${EPREFIX}/bin/sh
				exec env SANDBOX_WRITE="\${SANDBOX_WRITE}:/etc/mtab:/dev/loop" $(type -P $w) "\$@"
			EOF
			chmod a+rx "${ww}"
		done
	}
	mkwrap mount umount

	addwrite /dev/full
	#export RUN_EXPENSIVE_TESTS="yes"
	#export FETISH_GROUPS="portage wheel"
	env PATH="${T}/mount-wrappers:${PATH}" \
	emake -j1 -k check
}

src_install() {
	default

	insinto /etc
	newins src/dircolors.hin DIR_COLORS

	if [[ ${USERLAND} == "GNU" ]] ; then
		cd "${ED%/}"/usr/bin || die
		dodir /bin
		# move critical binaries into /bin (required by FHS)
		local fhs="cat chgrp chmod chown cp date dd df echo false ln ls
		           mkdir mknod mv pwd rm rmdir stty sync true uname
		           $(usev hostname)"
		if use sep-usr; then
			# Required by (at least) /etc/init.d/device-mapper
			fhs+=" uniq md5sum"
		fi
		mv ${fhs} ../../bin/ || die "Could not move essential binaries from /usr/bin to /bin"
		if use kill; then
			mv kill ../../bin/ || die "Could not move 'kill' binary from /usr/bin to /bin"
		fi
		# move critical binaries into /bin (common scripts)
		local com="basename chroot cut dir dirname du env expr head mkfifo
		           mktemp readlink seq sleep sort tail touch tr tty vdir wc yes"
		mv ${com} ../../bin/ || die "could not move common bins"
		# create a symlink for uname in /usr/bin/ since autotools require it,
		# as long as /bin resolves to a different directory than /usr/bin
		local x
		[[ ${EROOT%/}/bin/. -ef ${EROOT%/}/usr/bin/. ]] ||
		for x in ${com} uname ; do
			dosym ../../bin/${x} /usr/bin/${x}
		done
	else
		# For now, drop the man pages, collides with the ones of the system.
		rm -rf "${ED%/}"/usr/share/man
	fi

	if use elibc_Cygwin ; then
		! use kill || mv "${ED%/}"/bin/{,g}kill || die
		mv "${ED%/}"/usr/libexec/${PN}/libstdbuf$(get_libname){.exe,} || die
	fi
}

pkg_postinst() {
	ewarn "Make sure you run 'hash -r' in your active shells."
	ewarn "You should also re-source your shell settings for LS_COLORS"
	ewarn "  changes, such as: source /etc/profile"

	# Help out users using experimental filesystems
	if grep -qs btrfs "${EROOT%/}"/etc/fstab /proc/mounts ; then
		case $(uname -r) in
		2.6.[12][0-9]|2.6.3[0-7]*)
			ewarn "You are running a system with a buggy btrfs driver."
			ewarn "Please upgrade your kernel to avoid silent corruption."
			ewarn "See: https://bugs.gentoo.org/353907"
			;;
		esac
	fi
}