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# Copyright 2021-2023 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
# @ECLASS: gradle.eclass
# @MAINTAINER:
# Gentoo Java Project <java@gentoo.org>
# @AUTHOR:
# Florian Schmaus <flow@gentoo.org>
# @BLURB: Utility functions for the gradle build system.
# @DESCRIPTION:
# Utility functions for the gradle build system.
# WARNING: This eclass is currently experimental and
# subject to change.
case ${EAPI} in
7|8) ;;
*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
esac
if [[ -z ${_GRADLE_ECLASS} ]] ; then
_GRADLE_ECLASS=1
inherit edo
# @ECLASS_VARIABLE: EGRADLE_MIN
# @DEFAULT_UNSET
# @DESCRIPTION:
# Minimum required gradle version.
# @ECLASS_VARIABLE: EGRADLE_MAX_EXCLUSIVE
# @DEFAULT_UNSET
# @DESCRIPTION:
# First gradle version that is not supported.
# @ECLASS_VARIABLE: EGRADLE_EXACT_VER
# @DEFAULT_UNSET
# @DESCRIPTION:
# The exactly required gradle version.
# @ECLASS_VARIABLE: EGRADLE_PARALLEL
# @DESCRIPTION:
# Set to the 'true', the default, to invoke gradle with --parallel. Set
# to 'false' to disable parallel gradle builds.
: ${EGRADLE_PARALLEL=true}
# @ECLASS_VARIABLE: EGRADLE_USER_HOME
# @DESCRIPTION:
# Directroy used the user's home directory by gradle.
EGRADLE_USER_HOME="${T}/gradle_user_home"
# @ECLASS_VARIABLE: EGRADLE_OVERWRITE
# @USER_VARIABLE
# @DEFAULT_UNSET
# @DESCRIPTION:
# User-specified overwrite of the used gradle binary.
# @FUNCTION: gradle-set_EGRADLE
# @DESCRIPTION:
# Set the EGRADLE environment variable.
gradle-set_EGRADLE() {
[[ -n ${EGRADLE} ]] && return
if [[ -n ${EGRADLE_OVERWRITE} ]]; then
export EGRADLE="${EGRADLE_OVERWRITE}"
return
fi
local candidates candidate selected selected_ver
candidates=$(compgen -c gradle-)
for candidate in ${candidates}; do
if [[ ! ${candidate} =~ gradle(-bin)?-([.0-9]+) ]]; then
continue
fi
local ver
if (( ${#BASH_REMATCH[@]} == 3 )); then
ver="${BASH_REMATCH[2]}"
else
ver="${BASH_REMATCH[1]}"
fi
if [[ -n ${EGRADLE_EXACT_VER} ]]; then
ver_test "${ver}" -ne ${EGRADLE_EXACT_VER} && continue
selected="${candidate}"
selected_ver="${ver}"
break
fi
if [[ -n ${EGRADLE_MIN} ]] \
&& ver_test "${ver}" -lt "${EGRADLE_MIN}"; then
# Candidate does not satisfy EGRADLE_MIN condition.
continue
fi
if [[ -n ${EGRADLE_MAX_EXCLUSIVE} ]] \
&& ver_test "${ver}" -ge "${EGRADLE_MAX_EXCLUSIVE}"; then
# Candidate does not satisfy EGRADLE_MAX_EXCLUSIVE condition.
continue
fi
if [[ -n ${selected_ver} ]] \
&& ver_test "${selected_ver}" -gt "${ver}"; then
# Candidate is older than the currently selected candidate.
continue
fi
selected="${candidate}"
selected_ver="${ver}"
done
if [[ -z ${selected} ]]; then
die "Could not find (suitable) gradle installation in PATH"
fi
export EGRADLE="${selected}"
export EGRADLE_VER="${ver}"
}
# @FUNCTION: egradle
# @USAGE: [gradle-args]
# @DESCRIPTION:
# Invoke gradle with the optionally provided arguments.
egradle() {
gradle-set_EGRADLE
# TODO --no-build-cache ?
local gradle_args=(
--console=plain
--info
--stacktrace
--no-daemon
--offline
--no-build-cache
--gradle-user-home "${EGRADLE_USER_HOME}"
--project-cache-dir "${T}/gradle_project_cache"
)
if $EGRADLE_PARALLEL; then
gradle_args+=( --parallel )
fi
local -x JAVA_TOOL_OPTIONS="-Duser.home=\"$T\""
# TERM needed, otherwise gradle may fail on terms it does not know about
TERM=xterm \
edo \
"${EGRADLE}" "${gradle_args[@]}" ${@}
}
fi
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