sci-physics/root: update live ebuild

- Better follow FHS
- Enable support for Python 3.11
- Change default to -Druntime_cxxmodules=ON
- Update with newly introduced build options (this is to avoid
  changes in defaults affecting ebuilds).
- Drop emacs USE flag
- Add jupyter USE flag for installing dependencies needed for
  enbling the C++ Jupyter notebooks provided by ROOT
- Update REQUIRED_USE for bug #882483

Bug: https://bugs.gentoo.org/666222
Bug: https://bugs.gentoo.org/882483

Signed-off-by: Guilherme Amadio <amadio@gentoo.org>

1 files changed, 69 insertions, 77 deletions

diff --git a/sci-physics/root/root-9999.ebuild b/sci-physics/root/root-9999.ebuild
index bff12a2d4081..84fee8efa756 100644
--- a/sci-physics/root/root-9999.ebuild
+++ b/sci-physics/root/root-9999.ebuild
@@ -6,18 +6,17 @@ EAPI=8
 # ninja does not work due to fortran
 CMAKE_MAKEFILE_GENERATOR=emake
 FORTRAN_NEEDED="fortran"
-PYTHON_COMPAT=( python3_{9..10} )
+PYTHON_COMPAT=( python3_{9..11} )
 
-inherit cmake cuda elisp-common fortran-2 python-single-r1 toolchain-funcs
+inherit cmake cuda fortran-2 python-single-r1 toolchain-funcs
 
 DESCRIPTION="C++ data analysis framework and interpreter from CERN"
 HOMEPAGE="https://root.cern"
 
-IUSE="+X aqua +asimage c++11 c++14 +c++17 cuda cudnn +davix debug emacs
-	+examples fits fftw fortran +gdml graphviz +gsl http libcxx +minuit
-	mpi mysql odbc +opengl oracle postgres prefix pythia6 pythia8 +python
-	qt5 R +roofit +root7 shadow sqlite +ssl +tbb test +tmva +unuran uring
-	vc vmc +xml xrootd"
+IUSE="+X aqua +asimage c++14 +c++17 cuda cudnn +davix debug +examples
+	fits fftw fortran +gdml graphviz +gsl http jupyter libcxx +minuit mpi
+	mysql odbc +opengl oracle postgres pythia6 pythia8 +python qt5 R +roofit
+	+root7 shadow sqlite +ssl +tbb test +tmva +unuran uring vc +xml xrootd"
 RESTRICT="test"
 PROPERTIES="test_network"
 
@@ -25,13 +24,13 @@ if [[ ${PV} =~ "9999" ]] ; then
 	inherit git-r3
 	EGIT_REPO_URI="https://github.com/root-project/root.git"
 	if [[ ${PV} == "9999" ]]; then
-		SLOT="0"
+		SLOT="6/9999"
 	else
-		SLOT="$(ver_cut 1-2)/$(ver_cut 3)"
+		SLOT="6/$(ver_cut 1-3)"
 		EGIT_BRANCH="v$(ver_cut 1)-$(ver_cut 2)-00-patches"
 	fi
 else
-	SLOT="$(ver_cut 1-2)/$(ver_cut 3)"
+	SLOT="6/$(ver_cut 1-3)"
 	KEYWORDS="~amd64 ~x86"
 	SRC_URI="https://root.cern/download/${PN}_v${PV}.source.tar.gz"
 fi
@@ -39,15 +38,15 @@ fi
 LICENSE="LGPL-2.1 freedist MSttfEULA LGPL-3 libpng UoI-NCSA"
 
 REQUIRED_USE="
-	^^ ( c++11 c++14 c++17 )
+	^^ ( c++14 c++17 )
 	cuda? ( tmva )
 	cudnn? ( cuda )
 	!X? ( !asimage !opengl !qt5 )
 	davix? ( ssl xml )
 	python? ( ${PYTHON_REQUIRED_USE} )
 	qt5? ( root7 )
-	root7? ( || ( c++14 c++17 ) )
-	tmva? ( gsl )
+	root7? ( || ( c++17 ) )
+	tmva? ( gsl python )
 	uring? ( root7 )
 "
 
@@ -87,7 +86,6 @@ CDEPEND="
 	cuda? ( >=dev-util/nvidia-cuda-toolkit-9.0 )
 	cudnn? ( dev-libs/cudnn )
 	davix? ( net-libs/davix )
-	emacs? ( >=app-editors/emacs-23.1:* )
 	fftw? ( sci-libs/fftw:3.0= )
 	fits? ( sci-libs/cfitsio:0= )
 	graphviz? ( media-gfx/graphviz )
@@ -128,7 +126,13 @@ CDEPEND="
 DEPEND="${CDEPEND}
 	virtual/pkgconfig"
 
-RDEPEND="${CDEPEND}"
+RDEPEND="${CDEPEND}
+	$(python_gen_cond_dep '
+		dev-python/jupyter[${PYTHON_USEDEP}]
+		dev-python/notebook[${PYTHON_USEDEP}]
+		dev-python/metakernel[${PYTHON_USEDEP}]
+	')
+"
 
 PATCHES=(
 	"${FILESDIR}"/${PN}-6.12.06_cling-runtime-sysroot.patch
@@ -159,9 +163,6 @@ src_prepare() {
 
 # Note: ROOT uses bundled clang because it is patched and API-incompatible
 #       with vanilla clang. The patches enable the C++ interpreter to work.
-#       Since ROOT installs many files into /etc (>100MB in total) that don't
-#       really belong there, we install it into another directory to avoid
-#       making /etc too big.
 
 src_configure() {
 	local mycmakeargs=(
@@ -170,18 +171,38 @@ src_configure() {
 		-DCMAKE_CUDA_HOST_COMPILER="$(tc-getCXX)"
 		-DCMAKE_C_FLAGS="${CFLAGS}"
 		-DCMAKE_CXX_FLAGS="${CXXFLAGS}"
-		-DCMAKE_CXX_STANDARD=$( (usev c++11 || usev c++14 || usev c++17) | cut -c4-)
+		-DCMAKE_CXX_STANDARD=$( (usev c++14 || usev c++17) | cut -c4-)
+		# set build type flags to empty to avoid overriding CXXFLAGS
+		-UCMAKE_C_FLAGS_RELEASE
+		-UCMAKE_C_FLAGS_RELWITHDEBINFO
+		-UCMAKE_CXX_FLAGS_RELEASE
+		-UCMAKE_CXX_FLAGS_RELWITHDEBINFO
+		# enable debug info in LLVM as well with USE=debug
+		-DLLVM_BUILD_TYPE=$(usex debug RelWithDebInfo Release)
 		-DPYTHON_EXECUTABLE="${EPREFIX}/usr/bin/${EPYTHON}"
-		-DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr/lib/${PN}/$(ver_cut 1-2)"
-		-DCMAKE_INSTALL_MANDIR="${EPREFIX}/usr/lib/${PN}/$(ver_cut 1-2)/share/man"
-		-DCMAKE_INSTALL_LIBDIR="lib"
 		-DDEFAULT_SYSROOT="${EPREFIX}"
+		-DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr"
+		-DCMAKE_INSTALL_CMAKEDIR="$(get_libdir)/cmake/ROOT"
+		-DCMAKE_INSTALL_DATADIR="share/root"
+		-DCMAKE_INSTALL_DOCDIR="share/doc/${PF}"
+		-DCMAKE_INSTALL_FONTDIR="share/fonts/root"
+		-DCMAKE_INSTALL_INCLUDEDIR="include/root"
+		-DCMAKE_INSTALL_LIBDIR="$(get_libdir)/root"
+		-DCMAKE_INSTALL_PYTHONDIR="${EPREFIX}/usr/lib/${EPYTHON}/site-packages"
+		-DCMAKE_INSTALL_SRCDIR="${EPREFIX}/usr/src/debug/${CATEGORY}/${PF}"
+		-DCMAKE_INSTALL_SYSCONFDIR="share/root"
+		-DCMAKE_INSTALL_TUTDIR="share/root/tutorials"
 		-DCLING_BUILD_PLUGINS=OFF
-		-Dasserts=OFF
+		-Dasan=OFF
+		-Dasserts=$(usex debug)
+		-Dccache=OFF # use ccache via portage
+		-Dcoverage=OFF
 		-Ddev=OFF
+		-Ddistcc=OFF
 		-Dexceptions=ON
 		-Dfail-on-missing=ON
-		-Dgnuinstall=OFF
+		-Dgnuinstall=ON
+		-Dgminimal=OFF
 		-Dshared=ON
 		-Dsoversion=ON
 		-Dbuiltin_llvm=ON
@@ -198,6 +219,7 @@ src_configure() {
 		-Dbuiltin_gl2ps=OFF
 		-Dbuiltin_glew=OFF
 		-Dbuiltin_gsl=OFF
+		-Dbuiltin_gtest=OFF
 		-Dbuiltin_lz4=OFF
 		-Dbuiltin_lzma=OFF
 		-Dbuiltin_nlohmannjson=OFF
@@ -213,37 +235,32 @@ src_configure() {
 		-Dbuiltin_zeromq=OFF
 		-Dbuiltin_zlib=OFF
 		-Dbuiltin_zstd=OFF
-		-Dalien=OFF
 		-Darrow=OFF
 		-Dasimage=$(usex asimage)
-		-Dccache=OFF # use ccache via portage
 		-Dcefweb=OFF
 		-Dclad=OFF
 		-Dcocoa=$(usex aqua)
 		-Dcuda=$(usex cuda)
 		-Dcudnn=$(usex cudnn)
 		-Dcxxmodules=OFF # requires clang, unstable
+		-Ddaos=OFF # not in gentoo
 		-Ddataframe=ON
 		-Ddavix=$(usex davix)
 		-Ddcache=OFF
-		-Ddistcc=OFF
 		-Dfcgi=$(usex http)
 		-Dfftw3=$(usex fftw)
 		-Dfitsio=$(usex fits)
 		-Dfortran=$(usex fortran)
 		-Dgdml=$(usex gdml)
 		-Dgfal=OFF
-		-Dgminimal=OFF
-		-Dgsl_shared=$(usex gsl)
 		-Dgviz=$(usex graphviz)
 		-Dhttp=$(usex http)
 		-Dimt=$(usex tbb)
+		-Djemalloc=OFF
 		-Dlibcxx=$(usex libcxx)
 		-Dmathmore=$(usex gsl)
-		-Dmemstat=OFF # deprecated
-		-Dminimal=OFF
-		-Dminuit2=$(usex minuit)
 		-Dminuit=$(usex minuit)
+		-Dminuit2=$(usex minuit)
 		-Dmlp=$(usex tmva)
 		-Dmonalisa=OFF
 		-Dmpi=$(usex mpi)
@@ -252,21 +269,21 @@ src_configure() {
 		-Dopengl=$(usex opengl)
 		-Doracle=$(usex oracle)
 		-Dpgsql=$(usex postgres)
-		-Dpythia6=$(usex pythia6)
 		-Dpyroot=$(usex python) # python was renamed to pyroot
-		#-Dpyroot_legacy=OFF # set to ON to use legacy PyROOT (6.22 and later)
-		#-Dpyroot_experimental=OFF # set to ON to use new PyROOT (6.20 and earlier)
+		-Dpyroot_legacy=OFF
+		-Dpythia6=$(usex pythia6)
 		-Dpythia8=$(usex pythia8)
 		-Dqt5web=$(usex qt5)
 		-Dqt6web=OFF
 		-Dr=$(usex R)
 		-Droofit=$(usex roofit)
 		-Droofit_multiprocess=OFF
+		-Droofit_hs3_ryml=OFF
 		-Droot7=$(usex root7)
 		-Drootbench=OFF
 		-Droottest=OFF
 		-Drpath=OFF
-		-Druntime_cxxmodules=OFF
+		-Druntime_cxxmodules=ON
 		-Dshadowpw=$(usex shadow)
 		-Dspectrum=ON
 		-Dsqlite=$(usex sqlite)
@@ -287,64 +304,39 @@ src_configure() {
 		-Dvdt=OFF
 		-Dveccore=OFF
 		-Dvecgeom=OFF
-		-Dvmc=$(usex vmc)
 		-Dx11=$(usex X)
 		-Dxml=$(usex xml)
 		-Dxrootd=$(usex xrootd)
 		${EXTRA_ECONF}
 	)
 
-	CMAKE_BUILD_TYPE=$(usex debug Debug Release) \
-	cmake_src_configure
-}
-
-src_compile() {
-	# needed for hsimple.root
-	addwrite /dev/random
-	cmake_src_compile
+	# Needs to be here, otherwise gets overriden by cmake.eclass
+	DCMAKE_BUILD_TYPE=$(usex debug RelWithDebInfo Release) cmake_src_configure
 }
 
 src_install() {
 	cmake_src_install
 
-	ROOTSYS=${EPREFIX}/usr/lib/${PN}/$(ver_cut 1-2)
-
-	if [[ ${PV} == "9999" ]]; then
-		ROOTENV="9900${PN}-git"
-	else
-		ROOTENV="$((9999 - $(ver_cut 2)))${PN}-$(ver_cut 1-2)-git"
-	fi
-
-	cat > ${ROOTENV} <<- EOF || die
-	MANPATH="${ROOTSYS}/share/man"
-	PATH="${ROOTSYS}/bin"
-	ROOTPATH="${ROOTSYS}/bin"
-	LDPATH="${ROOTSYS}/lib"
+	newenvd - 99root <<- EOF || die
+	LDPATH="${EPREFIX}/usr/$(get_libdir)/root"
 	EOF
 
-	if use python; then
-		echo "PYTHONPATH=\"${ROOTSYS}/lib\"" >> ${ROOTENV} || die
-	fi
+	pushd "${ED}/usr" > /dev/null
 
-	doenvd ${ROOTENV}
+	rm bin/*.{csh,sh,fish} || die
 
-	if use emacs; then
-		elisp-install ${PN}-$(ver_cut 1-2) "${BUILD_DIR}"/root-help.el
+	if ! use examples; then
+		rm -r share/root/tutorials || die
 	fi
 
-	pushd "${D}/${ROOTSYS}" > /dev/null
-
-	rm -r emacs bin/*.{csh,sh,fish} || die
+	popd
 
-	if ! use examples; then
-		rm -r tutorials || die
-	fi
+	use python && python_optimize
+}
 
-	# create versioned symlinks for binaries
-	if [[ ! ${PV} == "9999" ]]; then
-		cd bin;
-		for exe in *; do
-			dosym "${exe}" "/usr/lib/${PN}/$(ver_cut 1-2)/bin/${exe}-$(ver_cut 1-2)"
-		done
-	fi
+pkg_postinst() {
+	einfo "Please note that from now on (specifically since sci-physics/root-6.28.00),"
+	einfo "ROOT is more closely following FHS (see https://bugs.gentoo.org/666222)."
+	einfo "Due to this, it will no longer be possible to install multiple concurrent"
+	einfo "versions of ROOT in Gentoo, since that would now cause file collisions."
 }