From a69acf6529e12e4c6965d49ca4fedc20d138339f Mon Sep 17 00:00:00 2001
From: Maxim Sobolev <sobomax@FreeBSD.org>
Date: Mon, 12 Jun 2000 09:42:51 +0000
Subject: [PATCH] Initial import of javavmwrapper - a simple shell script which
 would allow Java-based ports to use any of the Java Virtual Machines
 installed on the system.

---
 java/javavmwrapper/Makefile             |  35 +++++++
 java/javavmwrapper/pkg-comment          |   1 +
 java/javavmwrapper/pkg-descr            |   2 +
 java/javavmwrapper/pkg-plist            |   3 +
 java/javavmwrapper/src/javavmwrapper.sh | 120 ++++++++++++++++++++++++
 5 files changed, 161 insertions(+)
 create mode 100644 java/javavmwrapper/Makefile
 create mode 100644 java/javavmwrapper/pkg-comment
 create mode 100644 java/javavmwrapper/pkg-descr
 create mode 100644 java/javavmwrapper/pkg-plist
 create mode 100644 java/javavmwrapper/src/javavmwrapper.sh

diff --git a/java/javavmwrapper/Makefile b/java/javavmwrapper/Makefile
new file mode 100644
index 000000000000..025458e4ddc5
--- /dev/null
+++ b/java/javavmwrapper/Makefile
@@ -0,0 +1,35 @@
+# New ports collection makefile for:	javavmwrapper
+# Date created:		10 June 2000
+# Whom:			Maxim Sobolev <sobomax@FreeBSD.org>
+#
+# $FreeBSD$
+#
+# This port is self contained in the src directory.
+#
+
+PORTNAME=	javavmwrapper
+PORTVERSION=	1.0
+CATEGORIES=	java
+MASTER_SITES=	# none
+DISTFILES=	# none
+
+MAINTAINER=	sobomax@FreeBSD.org
+
+NO_BUILD=	yes
+NO_WRKSUBDIR=	yes
+
+SRC=		${.CURDIR}/src
+
+do-fetch:
+	@${DO_NADA}
+
+do-configure:
+	${SED} 's|%%PREFIX%%|${PREFIX}|' \
+		< ${SRC}/javavmwrapper.sh > ${WRKDIR}/javavmwrapper.sh
+
+do-install:
+	${INSTALL_SCRIPT} ${WRKDIR}/javavmwrapper.sh ${PREFIX}/bin/javavm
+	${LN} -sf ${PREFIX}/bin/javavm ${PREFIX}/bin/registervm
+	${LN} -sf ${PREFIX}/bin/javavm ${PREFIX}/bin/unregistervm
+
+.include <bsd.port.mk>
diff --git a/java/javavmwrapper/pkg-comment b/java/javavmwrapper/pkg-comment
new file mode 100644
index 000000000000..6713fedf6164
--- /dev/null
+++ b/java/javavmwrapper/pkg-comment
@@ -0,0 +1 @@
+Wrapper script for various Java Virtual Machines
diff --git a/java/javavmwrapper/pkg-descr b/java/javavmwrapper/pkg-descr
new file mode 100644
index 000000000000..934875c757c7
--- /dev/null
+++ b/java/javavmwrapper/pkg-descr
@@ -0,0 +1,2 @@
+Wrapper script to allow several different Java Virtual Machines being installef
+on the same system.
diff --git a/java/javavmwrapper/pkg-plist b/java/javavmwrapper/pkg-plist
new file mode 100644
index 000000000000..00e0e070e808
--- /dev/null
+++ b/java/javavmwrapper/pkg-plist
@@ -0,0 +1,3 @@
+bin/javavm
+bin/registervm
+bin/unregistervm
diff --git a/java/javavmwrapper/src/javavmwrapper.sh b/java/javavmwrapper/src/javavmwrapper.sh
new file mode 100644
index 000000000000..5507efe3cbc1
--- /dev/null
+++ b/java/javavmwrapper/src/javavmwrapper.sh
@@ -0,0 +1,120 @@
+#!/bin/sh
+#
+# javawrapper.sh
+#
+# Allows to install several Java Virtual Machines
+# on the same system and use config file/or environment
+# variable to select wichever to use
+#
+# ----------------------------------------------------------------------------
+# "THE BEER-WARE LICENSE" (Revision 42, (c) Poul-Henning Kamp):
+# Maxim Sobolev <sobomax@FreeBSD.org> wrote this file.  As long as you retain
+# this notice you can do whatever you want with this stuff. If we meet some
+# day, and you think this stuff is worth it, you can buy me a beer in return.
+#
+# Maxim Sobolev
+# ----------------------------------------------------------------------------
+#
+# $FreeBSD$
+#
+# MAINTAINER= sobomax@FreeBSD.org
+
+ARGS="${*}"
+PREFIX="%%PREFIX%%"
+CONF="${PREFIX}/etc/javavms"
+IAM=`basename "${0}"`
+
+tryrunVM () {
+    if [ -x "${1}" ]; then
+        exec "${1}" ${2}
+    fi
+
+    /bin/echo "${IAM}: warning: couldn't start specified JavaVM - \"${1}\"" >&2
+}
+
+registerVM () {
+    if [ x"${1}" = x"" ]; then
+       /bin/echo "Usage: ${IAM} path"
+       exit
+    fi
+
+    if [ ! -e "${CONF}" ]; then
+       /usr/bin/touch "${CONF}"
+    fi
+
+    if [ ! -x "${1}" ]; then
+        /bin/echo "${IAM}: warning: the specified JavaVM \"${1}\" either not exists of not executable" >&2
+    fi
+
+    /bin/ed "${CONF}" >/dev/null <<EOF
+0a
+${1}
+.
+w
+q
+EOF
+    exit 0
+}
+
+unregisterVM () {
+    if [ x"${1}" = x"" ]; then
+       /bin/echo "Usage: ${IAM} path"
+       exit
+    fi
+
+    if [ ! -e "${CONF}" ]; then
+       /bin/echo "${IAM}: error: can't find ${CONF} config file!" >&2
+       exit 1
+    fi
+
+    if [ x"`grep ${1} ${CONF}`" = x"" ]; then
+        /bin/echo "${IAM}: error: \"${1}\" JavaVM is not currently registered"
+        exit 1
+    fi
+
+    /bin/ed "${CONF}" >/dev/null <<EOF
+g|${1}|d
+w
+q
+EOF
+
+    # Remove config file if its size reached 0
+    if [ ! -s "${CONF}" ]; then
+        /bin/rm "${CONF}"
+    fi
+
+    exit 0
+}
+
+case "${IAM}" in
+    registervm )
+        registerVM "${1}"
+        ;;
+    unregistervm )
+        unregisterVM "${1}"
+        ;;
+esac
+
+# Main ()
+
+# First check if JAVAVM environment variable is set
+if [ x"${JAVAVM}" != x"" ]; then
+    tryrunVM "${JAVAVM}" "${ARGS}"
+fi
+
+# Then try to make sure that ${CONF} exists
+if [ ! -e "${CONF}" ]; then
+    echo "${IAM}: error: can't find ${CONF} config file" >&2
+    exit 1
+fi
+
+# Allow coment in the ${CONF}
+VMS=`/usr/bin/sed 's|#.*||' < "${CONF}" | uniq`
+
+# Finally try to run one of the ${VMS}
+for JAVAVM in ${VMS}; do
+    tryrunVM "${JAVAVM}" "${ARGS}";
+done
+
+echo "${IAM}: error: no suitable JavaVMs found" >&2
+exit 1
\ No newline at end of file