dev-java/jflex: EAPI 7

Package-Manager: Portage-3.0.13, Repoman-3.0.2
Signed-off-by: Volkmar W. Pogatzki <gentoo@pogatzki.net>
Closes: https://github.com/gentoo/gentoo/pull/19943
Signed-off-by: Miroslav Šulc <fordfrog@gentoo.org>

1 files changed, 123 insertions, 0 deletions

diff --git a/dev-java/jflex/jflex-1.6.1-r1.ebuild b/dev-java/jflex/jflex-1.6.1-r1.ebuild
new file mode 100644
index 000000000000..0306f5b66439
--- /dev/null
+++ b/dev-java/jflex/jflex-1.6.1-r1.ebuild
@@ -0,0 +1,123 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="7"
+
+JAVA_PKG_IUSE="doc source"
+
+inherit java-pkg-2 java-pkg-simple
+
+DESCRIPTION="JFlex is a lexical analyzer generator for Java"
+HOMEPAGE="https://www.jflex.de/"
+SRC_URI="https://${PN}.de/${P}.tar.gz"
+
+LICENSE="BSD"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc64 ~x86 ~ppc-macos ~x64-macos"
+IUSE="examples test vim-syntax"
+RESTRICT="!test? ( test )"
+
+CDEPEND="dev-java/ant-core:0"
+
+RDEPEND=">=virtual/jre-1.8:*
+	vim-syntax? ( || ( app-editors/vim app-editors/gvim ) )
+	${CDEPEND}"
+
+DEPEND="dev-java/javacup:0
+	>=virtual/jdk-1.8:*
+	test? ( dev-java/junit:4 )
+	${CDEPEND}"
+
+PDEPEND="dev-java/javacup:0"
+
+S="${WORKDIR}/${P}"
+JAVA_SRC_DIR="src/main/java"
+
+src_prepare() {
+	# See below for details.
+	eapply_user "${FILESDIR}/icedtea-arm.patch"
+
+	# We need the bundled jflex.jar.
+	rm -rv ${JAVA_SRC_DIR}/java_cup examples/pom.xml || die
+
+	# Remove the bundled java-cup.jar if unneeded.
+	if has_version ${PDEPEND}; then
+		rm -v lib/java-cup-*.jar || die
+	fi
+}
+
+src_configure() {
+	# javacup is a cyclic dependency. Use the package if we have it,
+	# otherwise use the bundled version and install the package later.
+	if has_version ${PDEPEND}; then
+		# Use PORTAGE_QUIET to suppress a QA warning that is spurious
+		# thanks to has_version above. This is Portage-specific but
+		# showing the warning elsewhere isn't the end of the world.
+		JAVACUP=$(PORTAGE_QUIET=1 java-pkg_getjar --build-only javacup javacup.jar)
+	else
+		JAVACUP=$(echo lib/java-cup-*.jar)
+	fi
+
+	JAVA_GENTOO_CLASSPATH_EXTRA="$(java-pkg_getjars --build-only ant-core):${JAVACUP}"
+}
+
+jflex_compile() {
+	java "${@}" jflex.Main -d ${JAVA_SRC_DIR}/${PN} --skel src/main/${PN}/skeleton.nested src/main/${PN}/LexScan.flex || die
+	java-pkg-simple_src_compile
+	java-pkg_addres ${PN}.jar src/main/resources
+}
+
+src_compile() {
+	java -jar "${JAVACUP}" -destdir ${JAVA_SRC_DIR}/${PN} -package ${PN} -parser LexParse -interface src/main/cup/LexParse.cup || die
+
+	# The IcedTea ARM HotSpot port (as of 2.6.1) hangs when running
+	# jflex. We have patched jflex to fix it but we have to run the
+	# bundled version first. -Xint works around the problem. See
+	# http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=2678.
+	use arm && local JFLEX_ARGS="-Xint"
+
+	# First compile (without doc/source) using the bundled jflex.
+	JAVA_PKG_IUSE= jflex_compile -cp "lib/${P}.jar:${JAVACUP}" ${JFLEX_ARGS}
+
+	# Then recompile using the fresh jflex.
+	jflex_compile -cp "${PN}.jar:${JAVACUP}"
+}
+
+src_install() {
+	java-pkg-simple_src_install
+	java-pkg_dolauncher ${PN} --main ${PN}.Main
+
+	java-pkg_register-dependency javacup javacup-runtime.jar
+	java-pkg_register-ant-task
+
+	use examples && java-pkg_doexamples examples
+	dodoc {changelog,README}.md
+
+	if use doc; then
+		dodoc doc/*.pdf
+		docinto html
+		dodoc doc/*.{css,html,png} doc/COPYRIGHT
+	fi
+
+	if use vim-syntax; then
+		insinto /usr/share/vim/vimfiles/syntax
+		doins lib/${PN}.vim
+	fi
+}
+
+src_test() {
+	if use arm && java-pkg_current-vm-matches oracle-jdk-bin-1.8; then
+		# This results in a StackOverflowError as of 1.8.0.65 but works
+		# fine on icedtea:7. Don't know about icedtea:8 yet.
+		rm -v src/test/java/jflex/EmitterTest.java || die
+	fi
+
+	local CP="src/test/java:${PN}.jar:${JAVA_GENTOO_CLASSPATH_EXTRA}:$(java-pkg_getjars junit-4)"
+
+	local TESTS=$(find src/test/java -name "*Test*.java" -printf "%P\n")
+	TESTS="${TESTS//.java}"
+	TESTS="${TESTS//\//.}"
+
+	ejavac -classpath "${CP}" $(find src/test/java -name "*.java")
+	ejunit4 -classpath "${CP}" ${TESTS}
+}