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# Copyright 2022-2026 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
# @ECLASS: crystal-utils.eclass
# @MAINTAINER:
# Anna <cyber+gentoo@sysrq.in>
# @AUTHOR:
# Anna <cyber+gentoo@sysrq.in>
# @SUPPORTED_EAPIS: 8 9
# @BLURB: utility functions for Crystal packages
# @DESCRIPTION:
# A utility eclass providing functions to invoke Crystal.
#
# This eclass does not set any metadata variables nor export any phase, so it
# can be inherited safely.
#
# All helper functions die on failure and support being called via 'nonfatal'.
case ${EAPI} in
8) inherit edo ;;
9) ;;
*) die "${ECLASS}: EAPI ${EAPI} unsupported."
esac
if [[ ! ${_CRYSTAL_UTILS_ECLASS} ]]; then
_CRYSTAL_UTILS_ECLASS=1
inherit flag-o-matic multiprocessing
# @ECLASS_VARIABLE: CRYSTAL_MAX_VER
# @DEFAULT_UNSET
# @PRE_INHERIT
# @DESCRIPTION:
# Highest Crystal version supported by the package. If unset, no upper bound
# is assumed.
# @ECLASS_VARIABLE: CRYSTAL_MIN_VER
# @PRE_INHERIT
# @DESCRIPTION:
# Lowest Crystal version supported by the package.
: "${CRYSTAL_MIN_VER:=1.16.3}"
# @ECLASS_VARIABLE: CRYSTAL_DEPS
# @OUTPUT_VARIABLE
# @DESCRIPTION:
# This is an eclass-generated Crystal dependency string.
CRYSTAL_DEPS="
|| (
>=dev-lang/crystal-${CRYSTAL_MIN_VER}
>=dev-lang/crystal-bin-${CRYSTAL_MIN_VER}
)
${CRYSTAL_MAX_VER:+\
|| (
<=dev-lang/crystal-${CRYSTAL_MAX_VER}-r9999
<=dev-lang/crystal-bin-${CRYSTAL_MAX_VER}-r9999
)
}"
# @ECLASS_VARIABLE: SHARDS_DEPS
# @OUTPUT_VARIABLE
# @DESCRIPTION:
# This is an eclass-generated Shards dependency string.
SHARDS_DEPS="
|| (
dev-util/shards
dev-lang/crystal-bin
)
"
# @ECLASS_VARIABLE: CRYSTAL_DEFINES
# @DEFAULT_UNSET
# @DESCRIPTION:
# List of compile-time defines. Used by 'crystal build' and 'crystal docs'.
# @FUNCTION: _crystal_get_colors_opt
# @INTERNAL
# @RETURN: "--no-color" if colors should be disabled, empty string otherwise
_crystal_get_colors_opt() {
if [[ ${NOCOLOR} == "true" || ${NOCOLOR} == "yes" ]]; then
echo "--no-color"
fi
}
# @FUNCTION: _crystal_get_debug_opt
# @INTERNAL
# @RETURN: "--debug" if USE=debug, "--no-debug" otherwise
_crystal_get_debug_opt() {
if has debug ${IUSE} && use debug; then
echo "--debug"
else
echo "--no-debug"
fi
}
# @FUNCTION: crystal_configure
# @DESCRIPTION:
# Set Crystal environment variables to match user settings.
#
# Passes arguments to Crystal by reading from an optionally pre-defined local
# mycrystalargs bash array.
#
# Must be run or ecrystal/eshards will fail.
crystal_configure() {
debug-print-function ${FUNCNAME} "${@}"
# avoid possible sandbox violation
export CRYSTAL_CACHE_DIR="${T}/crystal"
export SHARDS_CACHE_PATH="${T}/shards"
[[ -z ${mycrystalargs} ]] && local -a mycrystalargs=()
local mycrystalargstype=$(declare -p mycrystalargs 2>&-)
if [[ "${mycrystalargstype}" != "declare -a mycrystalargs="* ]]; then
die "mycrystalargs must be declared as array"
fi
local args=(
--link-flags="\"${LDFLAGS}\""
--error-trace
--release
--progress
$(_crystal_get_debug_opt)
$(_crystal_get_colors_opt)
$(is-flagq -mcpu && echo "--mcpu=$(get-flag mcpu)")
$(is-flagq -mcmodel && echo "--mcmodel=$(get-flag mcmodel)")
# TODO: --mattr
"${CRYSTAL_DEFINES[@]}"
"${mycrystalargs[@]}"
)
export CRYSTAL_OPTS="${args[@]}"
_CRYSTAL_CONFIGURE_HAS_RUN=1
}
# @FUNCTION: ecrystal
# @USAGE: [<args>...]
# @DESCRIPTION:
# Call crystal, passing supplied arguments.
ecrystal() {
debug-print-function ${FUNCNAME} "${@}"
[[ ${_CRYSTAL_CONFIGURE_HAS_RUN} ]] || \
die "${FUNCNAME}: crystal_configure has not been run"
mkdir -p "${CRYSTAL_CACHE_DIR}" || die "Creating Crystal cache dir failed"
edo crystal "${@}"
}
# @FUNCTION: eshards
# @USAGE: [<args>...]
# @DESCRIPTION:
# Call shards, passing the standard set of options, then supplied arguments.
eshards() {
debug-print-function ${FUNCNAME} "${@}"
[[ ${_CRYSTAL_CONFIGURE_HAS_RUN} ]] || \
die "${FUNCNAME}: crystal_configure has not been run"
mkdir -p "${CRYSTAL_CACHE_DIR}" || die "Creating Crystal cache dir failed"
mkdir -p "${SHARDS_CACHE_PATH}" || die "Creating Shards cache dir failed"
local args=(
--local
--without-development
$(_crystal_get_colors_opt)
)
edo shards "${args[@]}" "${@}"
}
# @FUNCTION: crystal_build
# @USAGE: <args>...
# @DESCRIPTION:
# Function for building a target. All arguments are passed to crystal.
crystal_build() {
local build_args=(
--threads=$(get_makeopts_jobs)
--verbose
)
ecrystal build "${build_args[@]}" "${@}"
}
# @FUNCTION: crystal_spec
# @USAGE: [<args>...]
# @DESCRIPTION:
# Function for running tests. All arguments are passed to crystal.
crystal_spec() {
ecrystal spec --verbose "${@}" || die -n "Tests failed"
}
fi
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