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# Copyright 2022 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
# @ECLASS: nimble.eclass
# @MAINTAINER:
# Anna Vyalkova <cyber+gentoo@sysrq.in>
# @AUTHOR:
# Anna Vyalkova <cyber+gentoo@sysrq.in>
# @SUPPORTED_EAPIS: 8
# @PROVIDES: nim-utils
# @BLURB: eclass to build Nim packages that use nimble as a build system
# @EXAMPLE:
# Typical ebuild for a Nim application:
#
# EAPI=8
#
# inherit nimble
#
# ...
#
# src_compile() {
# nimble_src_compile
# nimble_build scss
# }
#
# ...
#
#
# Typical ebuild for a Nim library:
#
# EAPI=8
#
# inherit nimble
#
# ...
# SLOT=${PV}
#
# set_package_url "https://github.com/example/example"
case ${EAPI} in
8) ;;
*) die "${ECLASS}: EAPI ${EAPI} unsupported."
esac
if [[ ! ${_NIMBLE_ECLASS} ]]; then
# @ECLASS_VARIABLE: BUILD_DIR
# @DEFAULT_UNSET
# @DESCRIPTION:
# Build directory, location where all generated files should be placed.
# If this isn't set, it defaults to ${WORKDIR}/${P}-build.
inherit edo nim-utils ninja-utils
BDEPEND="${NINJA_DEPEND}
dev-lang/nim
dev-nim/nimbus
"
# @FUNCTION: set_package_url
# @USAGE: <url>
# @DESCRIPTION:
# If this function is called, nimbus will generate and install a nimblemeta.json
# file. Some packages specify their dependencies using URLs and nimbus is
# unable to find them unless a metadata file exists.
set_package_url() {
debug-print-function ${FUNCNAME} "${@}"
(( $# == 1 )) || \
die "${FUNCNAME} takes exactly one argument"
_PACKAGE_URL="${1}"
}
# @FUNCTION: get_package_url
# @USAGE:
# @INTERNAL
# @RETURN: package URL
get_package_url() {
echo "${_PACKAGE_URL}"
}
# @FUNCTION: nimble_src_configure
# @USAGE:
# @DESCRIPTION:
# Configure the package with nimbus. This will start an out-of-source build.
# Passes arguments to Nim by reading from an optionally pre-defined local
# mynimargs bash array.
# @CODE
# src_configure() {
# local mynimargs=(
# --threads:on
# )
# nimble_src_configure
# }
# @CODE
nimble_src_configure() {
debug-print-function ${FUNCNAME} "${@}"
[[ -n "${NINJA_DEPEND}" ]] || \
ewarn "Unknown value '${NINJA}' for \${NINJA}"
BUILD_DIR="${BUILD_DIR:-${WORKDIR}/${P}-build}"
[[ -z ${mynimargs} ]] && local -a mynimargs=()
local mynimargstype=$(declare -p mynimargs 2>&-)
if [[ "${mynimargstype}" != "declare -a mynimargs="* ]]; then
die "mynimargs must be declared as array"
fi
nim_gen_config
local nimbusargs=(
--nimbleDir:"${EPREFIX}"/opt/nimble
--binDir:"${EPREFIX}"/usr/bin
--url:"$(get_package_url)"
"${mynimargs[@]}"
)
edo nimbus "${nimbusargs[@]}" "${S}" "${BUILD_DIR}"
}
# @FUNCTION: nimble_build
# @USAGE: [ninja args...]
# @DESCRIPTION:
# Function for building the package. All arguments are passed to eninja.
nimble_build() {
debug-print-function ${FUNCNAME} "${@}"
eninja -C "${BUILD_DIR}" "${@}"
}
# @FUNCTION: nimble_src_compile
# @USAGE: [ninja args...]
# @DESCRIPTION:
# Build the package with Ninja. All arguments are passed to nimble_build.
nimble_src_compile() {
debug-print-function ${FUNCNAME} "${@}"
nimble_build "${@}"
}
# @FUNCTION: nimble_src_test
# @USAGE: [ninja args...]
# @DESCRIPTION:
# Test the package. All arguments are passed to nimble_build.
nimble_src_test() {
debug-print-function ${FUNCNAME} "${@}"
if nonfatal nimble_build test -n &> /dev/null; then
nimble_build test "${@}"
fi
}
# @FUNCTION: nimble_src_install
# @DESCRIPTION:
# Install the package with Ninja. All arguments are passed to nimble_build.
nimble_src_install() {
debug-print-function ${FUNCNAME} "${@}"
DESTDIR="${D}" nimble_build install "${@}"
einstalldocs
}
_NIMBLE_ECLASS=1
fi
EXPORT_FUNCTIONS src_configure src_compile src_test src_install
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