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# Copyright 1999-2024 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
# @ECLASS: tree-sitter-grammar.eclass
# @MAINTAINER:
# Matthew Smith <matthew@gentoo.org>
# Nick Sarnie <sarnex@gentoo.org>
# Arthur Zamarin <arthurzam@gentoo.org>
# @AUTHOR:
# Matthew Smith <matthew@gentoo.org>
# @SUPPORTED_EAPIS: 8
# @BLURB: Common functions and variables for Tree Sitter grammars
case ${EAPI} in
8) ;;
*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
esac
if [[ -z ${_TREE_SITTER_GRAMMAR_ECLASS} ]]; then
_TREE_SITTER_GRAMMAR_ECLASS=1
inherit edo multilib toolchain-funcs
SRC_URI="https://github.com/tree-sitter/${PN}/archive/${TS_PV:-v${PV}}.tar.gz
-> ${P}.tar.gz"
S="${WORKDIR}"/${PN}-${TS_PV:-${PV}}
BDEPEND+=" test? ( dev-util/tree-sitter-cli )"
IUSE+=" test"
RESTRICT+=" !test? ( test )"
# @ECLASS_VARIABLE: TS_PV
# @PRE_INHERIT
# @DEFAULT_UNSET
# @DESCRIPTION:
# Used to override upstream tag name if tagged differently, e.g. most releases
# are v${PV} but some are tagged as rust-${PV}.
# @ECLASS_VARIABLE: TS_BINDINGS
# @PRE_INHERIT
# @DEFAULT_UNSET
# @DESCRIPTION:
# Array of bindings language to build. Currently only "python" is supported.
for _BINDING in "${TS_BINDINGS[@]}"; do
case ${_BINDING} in
python)
DISTUTILS_EXT=1
DISTUTILS_OPTIONAL=1
DISTUTILS_USE_PEP517=setuptools
PYTHON_COMPAT=( python3_{10..12} )
inherit distutils-r1
IUSE+=" python"
REQUIRED_USE+=" python? ( ${PYTHON_REQUIRED_USE} )"
DEPEND+=" python? (
${PYTHON_DEPS}
)"
RDEPEND+=" python? (
${PYTHON_DEPS}
>=dev-python/tree-sitter-0.21.0[${PYTHON_USEDEP}]
)"
BDEPEND+=" python? (
${PYTHON_DEPS}
${DISTUTILS_DEPS}
dev-python/wheel[${PYTHON_USEDEP}]
)"
;;
*)
die "Unknown binding: ${_BINDING}"
;;
esac
done
unset _BINDING
# @FUNCTION: _get_tsg_abi_ver
# @INTERNAL
# @DESCRIPTION:
# This internal function determines the ABI version of a grammar library based
# on a constant in the source file.
_get_tsg_abi_ver() {
# This sed script finds ABI definition string in parser source file,
# substitutes all the string until the ABI number, and prints remains
# (the ABI number itself)
sed -n 's/#define LANGUAGE_VERSION //p' "${S}"/src/parser.c ||
die "Unable to extract ABI version for this grammar"
}
tree-sitter-grammar_src_prepare() {
debug-print-function ${FUNCNAME} "${@}"
default
local binding
for binding in "${TS_BINDINGS[@]}"; do
case ${binding} in
python)
use python && distutils-r1_src_prepare
;;
esac
done
}
tree-sitter-grammar_src_configure() {
debug-print-function ${FUNCNAME} "${@}"
local binding
for binding in "${TS_BINDINGS[@]}"; do
case ${binding} in
python)
use python && distutils-r1_src_configure
;;
esac
done
}
# @FUNCTION: _tree-sitter-grammar_legacy_compile
# @INTERNAL
# @DESCRIPTION:
# Compiles the Tree Sitter parser as a shared library, the legacy way.
_tree-sitter-grammar_legacy_compile() {
cd "${S}/src" || die
# Grammars always contain parser.c, and sometimes a scanner.c,
# or scanner.cc.
tc-export CC CXX
# We want to use the bundled parser.h, not anything lurking on the system, hence -I
# See https://github.com/tree-sitter/tree-sitter-bash/issues/199#issuecomment-1694416505
local -x CFLAGS="${CFLAGS} -fPIC -I. -Itree_sitter"
local -x CXXFLAGS="${CXXFLAGS} -fPIC -I. -Itree_sitter"
local objects=( parser.o )
if [[ -f "${S}"/src/scanner.c || -f "${S}"/src/scanner.cc ]]; then
objects+=( scanner.o )
fi
emake "${objects[@]}"
local link="$(tc-getCC) ${CFLAGS}"
if [[ -f "${S}/src/scanner.cc" ]]; then
link="$(tc-getCXX) ${CXXFLAGS}"
fi
local soname=lib${PN}$(get_libname $(_get_tsg_abi_ver))
local soname_args="-Wl,--soname=${soname}"
if [[ ${CHOST} == *darwin* ]] ; then
soname_args="-Wl,-install_name,${EPREFIX}/usr/$(get_libdir)/${soname}"
fi
edo ${link} ${LDFLAGS} \
-shared \
*.o \
"${soname_args}" \
-o "${WORKDIR}"/${soname}
}
tree-sitter-grammar_src_compile() {
debug-print-function ${FUNCNAME} "${@}"
# legacy grammars don't have a pyproject.toml
if [[ -f "${S}/pyproject.toml" ]]; then
sed -e "/SONAME_MINOR :=/s/:=.*$/:= $(_get_tsg_abi_ver)/" -i "${S}/Makefile" || die
emake \
STRIP="" \
PREFIX="${EPREFIX}/usr" \
LIBDIR="${EPREFIX}/usr/$(get_libdir)"
else
_tree-sitter-grammar_legacy_compile
fi
local binding
for binding in "${TS_BINDINGS[@]}"; do
case ${binding} in
python)
use python && distutils-r1_src_compile
;;
esac
done
}
# @FUNCTION: tree-sitter-grammar_src_test
# @DESCRIPTION:
# Runs the Tree Sitter parser's test suite.
# See: https://tree-sitter.github.io/tree-sitter/creating-parsers#command-test
tree-sitter-grammar_src_test() {
debug-print-function ${FUNCNAME} "${@}"
tree-sitter test || die "Test suite failed"
}
tree-sitter-grammar_src_install() {
debug-print-function ${FUNCNAME} "${@}"
# legacy grammars don't have a pyproject.toml
if [[ -f "${S}/pyproject.toml" ]]; then
emake \
PREFIX="${EPREFIX}/usr" \
LIBDIR="${EPREFIX}/usr/$(get_libdir)" \
DESTDIR="${D}/" \
install
find "${D}" -name '*.a' -delete || die "failed to remove static libraries"
else
local soname=lib${PN}$(get_libname $(_get_tsg_abi_ver))
dolib.so "${WORKDIR}/${soname}"
dosym "${soname}" /usr/$(get_libdir)/lib${PN}$(get_libname)
fi
local binding
for binding in "${TS_BINDINGS[@]}"; do
case ${binding} in
python)
use python && distutils-r1_src_install
;;
esac
done
}
fi
EXPORT_FUNCTIONS src_prepare src_configure src_compile src_test src_install
|
