dev-java/antlr: EAPI 7, min java 1.8 (slot 3)

Package-Manager: Portage-3.0.18, Repoman-3.0.2
Signed-off-by: Volkmar W. Pogatzki <gentoo@pogatzki.net>
Closes: https://github.com/gentoo/gentoo/pull/20829
Signed-off-by: Miroslav Šulc <fordfrog@gentoo.org>

2 files changed, 109 insertions, 8 deletions

diff --git a/dev-java/antlr/antlr-3.2-r1.ebuild b/dev-java/antlr/antlr-3.2-r1.ebuild
new file mode 100644
index 000000000000..fba666dc5ad6
--- /dev/null
+++ b/dev-java/antlr/antlr-3.2-r1.ebuild
@@ -0,0 +1,101 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+JAVA_PKG_IUSE="doc test"
+
+inherit java-pkg-2 java-pkg-simple
+
+DESCRIPTION="A parser generator for many languages"
+HOMEPAGE="https://www.antlr3.org/"
+SRC_URI="https://www.antlr3.org/download/${P}.tar.gz
+	https://www.antlr3.org/download/${P}.jar" # Prebuilt version needed.
+
+LICENSE="BSD"
+SLOT="3"
+KEYWORDS="amd64 ~arm ~arm64 ppc64 x86 ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
+RESTRICT="!test? ( test )"
+
+CDEPEND=">=dev-java/antlr-2.7.7-r7:0
+	dev-java/stringtemplate:0"
+
+RDEPEND="${CDEPEND}
+	>=virtual/jre-1.8:*"
+
+DEPEND="${CDEPEND}
+	>=virtual/jdk-1.8:*
+	test? ( dev-java/junit:4 )"
+
+PATCHES=(
+	# These fixes have been applied in 3.5.
+	"${FILESDIR}/${PV}-test-fixes.patch"
+	"${FILESDIR}/${PV}-java-8.patch"
+)
+
+S="${WORKDIR}/${P}"
+JAVA_GENTOO_CLASSPATH_EXTRA="${S}/${PN}-runtime.jar"
+JAVA_GENTOO_CLASSPATH="antlr,stringtemplate"
+
+src_unpack() {
+	unpack ${P}.tar.gz
+}
+
+src_prepare() {
+	default
+	java-pkg_clean
+
+	# Some tests fail under Java 8 in ways that probably aren't limited
+	# to the tests. This is bad but upstream is never going to update
+	# 3.2 even though other projects still rely on it. If any issues
+	# arise, we can only put pressure on those projects to upgrade.
+	if java-pkg_is-vm-version-ge 1.8; then
+		rm -v tool/src/test/java/org/antlr/test/Test{DFAConversion,SemanticPredicates,TopologicalSort}.java || die
+	fi
+
+	# 3.2 has strange hidden files.
+	find -type f -name "._*.*" -delete || die
+}
+
+src_compile() {
+	cd "${S}/runtime/Java/src/main" || die
+	JAVA_JAR_FILENAME="${S}/${PN}-runtime.jar" java-pkg-simple_src_compile
+
+	cd "${S}/tool/src/main" || die
+
+	local G; for G in antlr codegen antlr.print assign.types buildnfa define; do # from pom.xml
+		antlr -o antlr2/org/antlr/grammar/v2/{,${G}.g} || die
+	done
+
+	# We have applied a patch to fix this version under Java 8. Trouble
+	# is that we need to run a prebuilt version before we can build our
+	# own and that version doesn't have the fix applied. We work around
+	# this by building just the offending class against the prebuilt
+	# version and then putting them together in the classpath. That
+	# isn't all. Due to a compiler limitation that Chewi doesn't fully
+	# understand, this class cannot be compiled by itself without a
+	# couple of tweaks that have been applied in the Java 8 patch.
+	ejavac -classpath "${DISTDIR}/${P}.jar" java/org/antlr/tool/CompositeGrammar.java
+
+	java -classpath "java:${DISTDIR}/${P}.jar" org.antlr.Tool $(find antlr3 -name "*.g") || die
+	JAVA_JAR_FILENAME="${S}/${PN}-tool.jar" java-pkg-simple_src_compile
+	java-pkg_addres "${S}/${PN}-tool.jar" resources
+}
+
+src_install() {
+	java-pkg_dojar ${PN}-{runtime,tool}.jar
+	java-pkg_dolauncher ${PN}${SLOT} --main org.antlr.Tool
+	use doc && java-pkg_dojavadoc runtime/Java/src/main/target/api
+}
+
+src_test() {
+	cd tool/src/test/java || die
+	local CP=".:${S}/${PN}-runtime.jar:${S}/${PN}-tool.jar:$(java-pkg_getjars junit-4,${JAVA_GENTOO_CLASSPATH})"
+
+	local TESTS=$(find * -name "Test*.java")
+	TESTS="${TESTS//.java}"
+	TESTS="${TESTS//\//.}"
+
+	ejavac -classpath "${CP}" $(find -name "*.java")
+	ejunit4 -classpath "${CP}" ${TESTS}
+}
diff --git a/dev-java/antlr/files/3.2-test-fixes.patch b/dev-java/antlr/files/3.2-test-fixes.patch
index 0544b7006170..28068edb76ba 100644
--- a/dev-java/antlr/files/3.2-test-fixes.patch
+++ b/dev-java/antlr/files/3.2-test-fixes.patch
@@ -1,5 +1,5 @@
---- tool/src/test/java/org/antlr/test/BaseTest.java.orig	2010-11-30 01:54:04.000000000 +0000
-+++ tool/src/test/java/org/antlr/test/BaseTest.java	2015-09-24 22:25:36.872191194 +0100
+--- a/tool/src/test/java/org/antlr/test/BaseTest.java.orig	2010-11-30 01:54:04.000000000 +0000
++++ b/tool/src/test/java/org/antlr/test/BaseTest.java	2015-09-24 22:25:36.872191194 +0100
 @@ -130,8 +130,8 @@
  		try {
  			Process process =
@@ -43,8 +43,8 @@
  					buf.append(line);
  					buf.append('\n');
  					line = in.readLine();
---- tool/src/test/java/org/antlr/test/TestTopologicalSort.java.orig	2009-09-23 19:36:14.000000000 +0100
-+++ tool/src/test/java/org/antlr/test/TestTopologicalSort.java	2010-11-30 01:54:04.000000000 +0000
+--- a/tool/src/test/java/org/antlr/test/TestTopologicalSort.java.orig	2009-09-23 19:36:14.000000000 +0100
++++ b/tool/src/test/java/org/antlr/test/TestTopologicalSort.java	2010-11-30 01:54:04.000000000 +0000
 @@ -49,7 +49,7 @@
          g.addEdge("F", "H");
          g.addEdge("E", "F");
@@ -72,8 +72,8 @@
          List nodes = g.sort();
          String result = nodes.toString();
          assertEquals(expecting, result);
---- tool/src/test/java/org/antlr/test/TestSemanticPredicates.java.orig	2009-09-23 19:36:12.000000000 +0100
-+++ tool/src/test/java/org/antlr/test/TestSemanticPredicates.java	2015-12-05 13:52:05.923411552 +0000
+--- a/tool/src/test/java/org/antlr/test/TestSemanticPredicates.java.orig	2009-09-23 19:36:12.000000000 +0100
++++ b/tool/src/test/java/org/antlr/test/TestSemanticPredicates.java	2015-12-05 13:52:05.923411552 +0000
 @@ -731,19 +731,23 @@
  			"c : a\n" +
  			"  | b\n" +
@@ -111,8 +111,8 @@
  	}
  
      @Test
---- tool/src/test/java/org/antlr/test/TestAttributes.java.orig	2015-12-05 13:55:55.392843185 +0000
-+++ tool/src/test/java/org/antlr/test/TestAttributes.java	2015-12-05 14:04:38.120599871 +0000
+--- a/tool/src/test/java/org/antlr/test/TestAttributes.java.orig	2015-12-05 13:55:55.392843185 +0000
++++ b/tool/src/test/java/org/antlr/test/TestAttributes.java	2015-12-05 14:04:38.120599871 +0000
 @@ -439,20 +439,15 @@
  		ErrorManager.setErrorListener(equeue);
  		Grammar g = new Grammar(