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92 lines
2.5 KiB
Bash
92 lines
2.5 KiB
Bash
# Copyright 1999-2022 Gentoo Authors
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# Distributed under the terms of the GNU General Public License v2
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# @ECLASS: ninja-utils.eclass
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# @MAINTAINER:
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# Michał Górny <mgorny@gentoo.org>
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# Mike Gilbert <floppym@gentoo.org>
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# @AUTHOR:
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# Michał Górny <mgorny@gentoo.org>
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# Mike Gilbert <floppym@gentoo.org>
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# @SUPPORTED_EAPIS: 5 6 7 8
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# @BLURB: common bits to run dev-util/ninja builder
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# @DESCRIPTION:
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# This eclass provides a single function -- eninja -- that can be used
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# to run the ninja builder alike emake. It does not define any
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# dependencies, you need to depend on dev-util/ninja yourself. Since
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# ninja is rarely used stand-alone, most of the time this eclass will
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# be used indirectly by the eclasses for other build systems (CMake,
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# Meson).
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case ${EAPI} in
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5|6|7|8) ;;
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*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
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esac
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if [[ -z ${_NINJA_UTILS_ECLASS} ]]; then
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_NINJA_UTILS_ECLASS=1
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# @ECLASS_VARIABLE: NINJA
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# @PRE_INHERIT
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# @DESCRIPTION:
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# Specify a compatible ninja implementation to be used by eninja().
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# At this point only "ninja" and "samu" are explicitly supported,
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# but other values can be set where NINJA_DEPEND will then be set
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# to a blank variable.
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# The default is set to "ninja".
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: ${NINJA:=ninja}
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# @ECLASS_VARIABLE: NINJA_DEPEND
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# @OUTPUT_VARIABLE
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# @DESCRIPTION:
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# Contains a set of build-time depenendencies based on the NINJA setting.
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# @ECLASS_VARIABLE: NINJAOPTS
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# @DEFAULT_UNSET
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# @DESCRIPTION:
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# The default set of options to pass to Ninja. Similar to MAKEOPTS,
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# supposed to be set in make.conf. If unset, eninja() will convert
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# MAKEOPTS instead.
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inherit multiprocessing
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case "${NINJA}" in
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ninja)
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NINJA_DEPEND=">=dev-util/ninja-1.8.2"
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;;
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samu)
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NINJA_DEPEND="dev-util/samurai"
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;;
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*)
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NINJA_DEPEND=""
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;;
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esac
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# @FUNCTION: get_NINJAOPTS
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# @DESCRIPTION:
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# Get the value of NINJAOPTS, inferring them from MAKEOPTS if unset.
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get_NINJAOPTS() {
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if [[ -z ${NINJAOPTS+set} ]]; then
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NINJAOPTS="-j$(makeopts_jobs "${MAKEOPTS}" 999) -l$(makeopts_loadavg "${MAKEOPTS}" 0)"
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fi
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echo "${NINJAOPTS}"
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}
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# @FUNCTION: eninja
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# @USAGE: [<args>...]
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# @DESCRIPTION:
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# Call Ninja, passing the NINJAOPTS (or converted MAKEOPTS), followed
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# by the supplied arguments. This function dies if ninja fails. Starting
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# with EAPI 6, it also supports being called via 'nonfatal'.
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eninja() {
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local nonfatal_args=()
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[[ ${EAPI} != 5 ]] && nonfatal_args+=( -n )
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[[ -n "${NINJA_DEPEND}" ]] || ewarn "Unknown value '${NINJA}' for \${NINJA}"
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set -- "${NINJA}" -v $(get_NINJAOPTS) "$@"
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echo "$@" >&2
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"$@" || die "${nonfatal_args[@]}" "${*} failed"
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}
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fi
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