commit:     2d2c19e5aaf4b320c5b030d0389bddd447d922be
Author:     Florian Schmaus <flow <AT> gentoo <DOT> org>
AuthorDate: Fri Jan  6 12:25:33 2023 +0000
Commit:     Florian Schmaus <flow <AT> gentoo <DOT> org>
CommitDate: Fri Jan  6 12:25:33 2023 +0000
URL:        https://gitweb.gentoo.org/proj/java.git/commit/?id=2d2c19e5

gradle.eclass: add gradle-set_EGRADLE and tests

Signed-off-by: Florian Schmaus <flow <AT> gentoo.org>

 eclass/gradle.eclass         | 91 ++++++++++++++++++++++++++++++++++++++++++--
 eclass/tests/gradle.sh       | 59 ++++++++++++++++++++++++++++
 eclass/tests/tests-common.sh | 12 ++++++
 3 files changed, 158 insertions(+), 4 deletions(-)

diff --git a/eclass/gradle.eclass b/eclass/gradle.eclass
index f609c122..ad7b1440 100644
--- a/eclass/gradle.eclass
+++ b/eclass/gradle.eclass
@@ -1,4 +1,4 @@
-# Copyright 2021 Gentoo Authors
+# Copyright 2021-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 # @ECLASS: gradle.eclass
@@ -12,13 +12,95 @@
 # WARNING: This eclass is currently experimental and
 # subject to change.
 
-EGRADLE_BIN="gradle"
+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_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 ${EGRADLE_MIN} ]] \
+                          && ver_test "${ver}" -lt "${EGRADLE_MIN}"; then
+                       # Candidate does not stisfy 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
 egradle() {
+       gradle-set_EGRADLE
+
        # TODO --no-build-cache ?
        local gradle_args=(
                --console=plain
@@ -31,6 +113,7 @@ egradle() {
                --project-cache-dir "${T}/gradle_project_cache"
        )
 
-       einfo "gradle "${gradle_args[@]}" ${@}"
-       "${EGRADLE_BIN}" "${gradle_args[@]}" ${@} || die "gradle failed"
+       edo "${EGRADLE}" "${gradle_args[@]}" ${@}
 }
+
+fi

diff --git a/eclass/tests/gradle.sh b/eclass/tests/gradle.sh
new file mode 100755
index 00000000..dac9c9cc
--- /dev/null
+++ b/eclass/tests/gradle.sh
@@ -0,0 +1,59 @@
+#!/usr/bin/env bash
+# Copyright 2022-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+source tests-common.sh || exit
+
+inherit gradle
+
+# TODO: hack because tests-common don't implement ver_cut
+EAPI=6 inherit eapi7-ver
+
+test_set_EGRADLE() {
+       local expected_EGRADLE="${1}"
+
+       shift
+
+       local tmpdir
+       tmpdir=$(mktemp -d || die)
+       for pseudo_gradle in "${@}"; do
+               local pseudo_gradle_path="${tmpdir}/${pseudo_gradle}"
+               touch "${pseudo_gradle_path}"
+               chmod 755 "${pseudo_gradle_path}"
+       done
+
+       local saved_PATH="${PATH}"
+       PATH="${tmpdir}"
+
+       local test_desc=(
+               test_set_EGRADLE
+       )
+       [[ -v EGRADLE_MIN ]] && test_desc+=( "EGRADLE_MIN=${EGRADLE_MIN}" )
+       [[ -v EGRADLE_MAX_EXCLUSIVE ]] && test_desc+=( 
"EGRADLE_MAX_EXCLUSIVE=${EGRADLE_MAX_EXCLUSIVE}" )
+       test_desc+=( $@ )
+
+       tbegin "${test_desc[@]}"
+       gradle-set_EGRADLE
+
+       local saved_EGRADLE="${EGRADLE}"
+       unset EGRADLE
+
+       PATH="${saved_PATH}"
+       rm -rf "${tmpdir}"
+
+       [[ "${saved_EGRADLE}" == "${expected_EGRADLE}" ]]
+       tend $?
+
+       if (( $? > 0 )); then
+               >&2 echo -e "\t expected=${expected_EGRADLE} 
actual=${saved_EGRADLE}"
+       fi
+}
+
+test_set_EGRADLE gradle-2.0 gradle-1.0 gradle-2.0
+EGRADLE_MIN=2.0 test_set_EGRADLE gradle-2.2.3 gradle-1.0 gradle-2.0 
gradle-2.2.3
+EGRADLE_MAX_EXCLUSIVE=2.2 test_set_EGRADLE gradle-2.0 gradle-1.0 gradle-2.0 
gradle-2.2.3
+
+
+texit

diff --git a/eclass/tests/tests-common.sh b/eclass/tests/tests-common.sh
new file mode 100644
index 00000000..73903657
--- /dev/null
+++ b/eclass/tests/tests-common.sh
@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+# Copyright 2022-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+GENTOO_REPO_PATH=$(portageq get_repo_path / gentoo)
+JAVA_REPO_PATH=$(portageq get_repo_path / java)
+
+source "${GENTOO_REPO_PATH}/eclass/tests/tests-common.sh"
+TESTS_ECLASS_SEARCH_PATHS=(
+       "${GENTOO_REPO_PATH}/eclass"
+       "${JAVA_REPO_PATH}/eclass"
+)

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