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|
#!/bin/sh
#
# javawrapper.sh
#
# Allow the installation of several Java Virtual Machines on the system.
# They can then be selected from based on environment variables and the
# configuration file.
#
# ----------------------------------------------------------------------------
# "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
# ----------------------------------------------------------------------------
#
# ----------------------------------------------------------------------------
# "THE BEER-WARE LICENSE" (Revision 42, (c) Poul-Henning Kamp):
# Greg Lewis <glewis@FreeBSD.org> substantially rewrote 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.
#
# Greg Lewis
# ----------------------------------------------------------------------------
#
# $FreeBSD$
#
# MAINTAINER=java@FreeBSD.org
SAVE_PATH=${PATH}
export PATH=/bin:/sbin:/usr/bin:/usr/sbin
PREFIX="%%PREFIX%%"
CONF="${PREFIX}/etc/javavms"
IAM=`basename "${0}"`
MAKE=/usr/bin/make
#
# Try to run a Java command.
#
tryJavaCommand () {
# Check for the command being executable and exec it if so.
if [ -x "${1}" ]; then
if [ ! -z "${SAVE_PATH}" ]; then
export PATH=${SAVE_PATH}
fi
exec "${@}"
fi
echo "${IAM}: warning: couldn't run specified Java command - \"${1}\"" >&2
}
#
# Create symbolic links for all of a Java VMs executables.
#
createJavaLinks () {
for exe in "${1}"/bin/* "${1}"/jre/bin/*; do
if [ -x "${exe}" -a \
! -d "${exe}" -a \
"`basename "${exe}"`" = "`basename "${exe}" .so`" -a \
! -e "${PREFIX}/bin/`basename "${exe}"`" -a \
-w "${PREFIX}/bin" ]; then
ln -s "${PREFIX}/bin/javavm" \
"${PREFIX}/bin/`basename "${exe}"`" 2>/dev/null
fi
done
}
#
# Sort the configuration file
#
sortConfiguration () {
if [ ! -f "${CONF}" ]; then
return
fi
if [ ! -w "${CONF}" -o ! -r "${CONF}" ]; then
echo "${IAM}: error: can't read/write ${CONF} configuration file!" >&2
return
fi
ifs="${IFS}"
IFS=:
cat "${CONF}" | \
(
export JAVAVMS
while read JAVAVM; do
VM=`echo "${JAVAVM}" | sed -E 's|[[:space:]]*#.*||' 2>/dev/null`
# Check that the VM exists and is "sane"
if [ ! -e "${VM}" ]; then
continue
fi
if [ -d "${VM}" ]; then
continue
fi
if [ ! -x "${VM}" ]; then
continue
fi
if [ `basename "${VM}"` != "java" ]; then
continue
fi
if [ "`realpath "${VM}" 2>/dev/null `" = "${PREFIX}/bin/javavm" ]; then
continue
fi
# Skip duplicate VMs
if [ ! -z "${JAVAVMS}" ]; then
for _JAVAVM in ${JAVAVMS}; do
if [ -z "${_JAVAVM}" ]; then
continue
fi
_VM=`echo "${_JAVAVM}" | sed -E 's|[[:space:]]*#.*||' 2>/dev/null`
if [ "x${VM}" = "x${_VM}" ]; then
continue 2
fi
done
fi
VM=`dirname "${VM}"`
VM=`dirname "${VM}"`
VM=`basename "${VM}"`
_JAVAVMS=:
for _JAVAVM in ${JAVAVMS}; do
if [ -z "${_JAVAVM}" ]; then
continue
fi
if [ -z "${JAVAVM}" ]; then
_JAVAVMS="${_JAVAVMS}:${_JAVAVM}"
continue
fi
_VM=`echo "${_JAVAVM}" | sed -E 's|[[:space:]]*#.*||' 2>/dev/null`
_VM=`dirname "${_VM}"`
_VM=`dirname "${_VM}"`
_VM=`basename "${_VM}"`
VERSION=`echo ${VM} | sed -e 's|[^0-9]*||' 2>/dev/null`
_VERSION=`echo ${_VM} | sed -e 's|[^0-9]*||' 2>/dev/null`
if [ "${VERSION}" \> "${_VERSION}" ]; then
_JAVAVMS="${_JAVAVMS}:${JAVAVM}:${_JAVAVM}"
JAVAVM=
continue
elif [ "${VERSION}" \< "${_VERSION}" ]; then
_JAVAVMS="${_JAVAVMS}:${_JAVAVM}"
continue
else
case "${VM}" in
diablo-jdk*)
_JAVAVMS="${_JAVAVMS}:${JAVAVM}:${_JAVAVM}"
JAVAVM=
continue
;;
diablo-jre*|jdk*)
case "${_VM}" in
diablo*)
_JAVAVMS="${_JAVAVMS}:${_JAVAVM}"
continue
;;
*)
_JAVAVMS="${_JAVAVMS}:${JAVAVM}:${_JAVAVM}"
JAVAVM=
continue
;;
esac
;;
jre*|linux-sun-jdk*)
case "${_VM}" in
diablo*|j*)
_JAVAVMS="${_JAVAVMS}:${_JAVAVM}"
continue
;;
*)
_JAVAVMS="${_JAVAVMS}:${JAVAVM}:${_JAVAVM}"
JAVAVM=
continue
;;
esac
;;
linux-sun-jre*|linux-blackdown-jdk*)
case "${_VM}" in
diablo*|j*|linux-sun*)
_JAVAVMS="${_JAVAVMS}:${_JAVAVM}"
continue
;;
*)
_JAVAVMS="${_JAVAVMS}:${JAVAVM}:${_JAVAVM}"
JAVAVM=
continue
;;
esac
;;
linux-blackdown-jre*|linux-ibm-jdk*)
case "${_VM}" in
diablo*|j*|linux-sun*|linux-blackdown*)
_JAVAVMS="${_JAVAVMS}:${_JAVAVM}"
continue
;;
*)
_JAVAVMS="${_JAVAVMS}:${JAVAVM}:${_JAVAVM}"
JAVAVM=
continue
;;
esac
;;
esac
_JAVAVMS="${_JAVAVMS}:${_JAVAVM}"
fi
done
JAVAVMS="${_JAVAVMS}"
if [ ! -z "${JAVAVM}" ]; then
JAVAVMS="${JAVAVMS}:${JAVAVM}"
fi
done;
if [ ! -z "${JAVAVMS}" ]; then
rm "${CONF}"
for JAVAVM in ${JAVAVMS}; do
if [ ! -z "${JAVAVM}" ]; then
echo "${JAVAVM}" >> "${CONF}"
fi
done
fi
)
IFS="${ifs}"
}
#
# Check all of the VMs in the configuration file
#
checkVMs () {
# Sort the configuration. This will also remove duplicates and
# non-existent VMs
sortConfiguration
# Ensure the configuration file exists
if [ ! -f "${CONF}" ]; then
exit 0
fi
# Ensure the configuration file has the correct permissions
if [ ! -w "${CONF}" -o ! -r "${CONF}" ]; then
echo "${IAM}: error: can't read/write ${CONF} configuration file!" 1>&2
exit 1
fi
# Ensure links are created for every executable for a VM.
cat "${CONF}" | \
(
while read JAVAVM; do
VM=`echo "${JAVAVM}" | sed -E 's|[[:space:]]*#.*||' 2>/dev/null`
# Create symbolic links as appropriate if they don't exist.
JAVA_HOME=`dirname "${VM}"`
JAVA_HOME=`dirname "${JAVA_HOME}"`
createJavaLinks "${JAVA_HOME}"
done;
)
exit 0
}
#
# Register a new Java VM.
#
registerVM () {
# Check the java command given to us.
if [ -z "${1}" ]; then
echo "Usage: ${IAM} path"
exit 1
fi
# Create the configuration file if it doesn't exist
if [ ! -e "${CONF}" ]; then
touch "${CONF}"
fi
# Check that the given VM can be found in the configuration file
VM=`echo "${1}" | sed -E 's|[[:space:]]*#.*||' 2>/dev/null`
if [ ! -z "`grep "${VM}" "${CONF}"`" ]; then
echo "${IAM}: error: JavaVM \"${VM}\" is already registered" 1>&2
exit 1
fi
# Check that the VM exists and is "sane"
if [ ! -e "${VM}" ]; then
echo "${IAM}: error: JavaVM \"${VM}\" does not exist" 1>&2
exit 1
fi
if [ -d "${VM}" ]; then
echo "${IAM}: error: JavaVM \"${VM}\" is a directory" 1>&2
exit 1
fi
if [ ! -x "${VM}" ]; then
echo "${IAM}: error: JavaVM \"${VM}\" is not executable" 1>&2
exit 1
fi
if [ `basename "${VM}"` != "java" ]; then
echo "${IAM}: error: JavaVM \"${VM}\" is not valid" 1>&2
exit 1
fi
if [ "`realpath "${VM}" 2>/dev/null `" = "${PREFIX}/bin/javavm" ]; then
echo "${IAM}: error: JavaVM \"${VM}\" is javavm!" 1>&2
exit 1
fi
# Add the VM to the configuration file
echo "${1}" >> "${CONF}"
# Create symbolic links as appropriate if they don't exist.
JAVA_HOME=`dirname "${VM}"`
JAVA_HOME=`dirname "${JAVA_HOME}"`
createJavaLinks "${JAVA_HOME}"
# Sort the VMs
sortConfiguration
exit 0
}
#
# Unregister a Java VM.
#
unregisterVM () {
# Check usage
if [ -z "${1}" ]; then
echo "Usage: ${IAM} path"
exit 1
fi
# Check for the configuration file
if [ ! -e "${CONF}" ]; then
echo "${IAM}: error: can't find ${CONF} configuration file!" >&2
exit 1
fi
# Check that the given VM can be found in the configuration file
if [ -z "`grep "${1}" "${CONF}"`" ]; then
echo "${IAM}: error: \"${1}\" JavaVM is not currently registered"
exit 1
fi
# Remove unneeded symlinks
VMS=`sed -E 's|[[:space:]]*#.*||' < "${CONF}" | uniq 2>/dev/null`
VM=`grep "${1}" "${CONF}" | sed -E 's|[[:space:]]*#.*||' 2>/dev/null`
JAVA_HOME=`dirname "${VM}"`
JAVA_HOME=`dirname "${JAVA_HOME}"`
for exe in "${JAVA_HOME}"/bin/* "${JAVA_HOME}"/jre/bin/*; do
exe=`basename "${exe}"`
if [ -L "${PREFIX}/bin/${exe}" -a \
"`realpath "${PREFIX}/bin/${exe}" 2>/dev/null `" = \
"${PREFIX}/bin/javavm" ]; then
for JAVAVM in ${VMS}; do
if [ "${JAVAVM}" != "${VM}" ]; then
JAVAVM=`dirname "${JAVAVM}"`
JAVAVM=`dirname "${JAVAVM}"`
if [ -x "${JAVAVM}/bin/${exe}" -o \
-x "${JAVAVM}/jre/bin/${exe}" ]; then
continue 2
fi
fi
done
rm "${PREFIX}/bin/${exe}"
fi
done
# Remove the VM from the configuration file
ed "${CONF}" >/dev/null <<EOF
g|${1}|d
w
q
EOF
# Remove configuration file if its size reached 0
if [ ! -s "${CONF}" ]; then
rm "${CONF}"
fi
exit 0
}
# Check for an alias and call the appropriate function.
case "${IAM}" in
registervm )
registerVM "${1}"
;;
unregistervm )
unregisterVM "${1}"
;;
checkvms )
checkVMs
;;
esac
# Main ()
# Backwards compatibility
if [ "${IAM}" = "javavm" ]; then
echo "${IAM}: warning: The use of 'javavm' as a synonym for 'java' is deprecated" 1>&2
IAM=java
fi
# Use JAVA_HOME if its set in the environment
if [ ! -z "${JAVA_HOME}" -a -x "${JAVA_HOME}/bin/${IAM}" ]; then
export JAVA_HOME
tryJavaCommand "${JAVA_HOME}/bin/${IAM}" "${@}"
elif [ ! -z "${JAVA_HOME}" -a -x "${JAVA_HOME}/jre/bin/${IAM}" ]; then
export JAVA_HOME
tryJavaCommand "${JAVA_HOME}/jre/bin/${IAM}" "${@}"
fi
unset JAVA_HOME
# Determine location of bsd.port.mk if it exists
PORTSDIR=
if [ -r /usr/share/mk/bsd.port.mk ]; then
PORTSDIR=`"${MAKE}" -f /usr/share/mk/bsd.port.mk -V PORTSDIR 2>/dev/null`
fi
BSD_PORT_MK=
if [ ! -z "${PORTSDIR}" -a -r "${PORTSDIR}/Mk/bsd.port.mk" ]; then
BSD_PORT_MK="${PORTSDIR}/Mk/bsd.port.mk"
fi
# If bsd.port.mk was found, use that to determine the VM to use.
if [ ! -z "${BSD_PORT_MK}" ]; then
JAVA_HOME=`"${MAKE}" -f "${BSD_PORT_MK}" -V JAVA_HOME USE_JAVA=yes 2>/dev/null`
if [ ! -z "${JAVA_HOME}" -a \
-x "${JAVA_HOME}/bin/${IAM}" ]; then
export JAVA_HOME
tryJavaCommand "${JAVA_HOME}/bin/${IAM}" "${@}"
elif [ ! -z "${JAVA_HOME}" -a \
-x "${JAVA_HOME}/jre/bin/${IAM}" ]; then
export JAVA_HOME
tryJavaCommand "${JAVA_HOME}/jre/bin/${IAM}" "${@}"
fi
fi
# Then try to make sure that ${CONF} exists
if [ ! -e "${CONF}" ]; then
echo "${IAM}: error: can't find ${CONF} configuration file" >&2
exit 1
fi
# Allow comments in the ${CONF}
VMS=`sed -E 's|[[:space:]]*#.*||' < "${CONF}" | uniq 2>/dev/null`
# Fix up JAVA_VERSION
if [ ! -z "${JAVA_VERSION}" ]; then
VERSION=
for version in ${JAVA_VERSION}; do
case "${version}" in
1.1+)
VERSION="${VERSION} 1.1 1.2 1.3 1.4 1.5"
;;
1.2+)
VERSION="${VERSION} 1.2 1.3 1.4 1.5"
;;
1.3+)
VERSION="${VERSION} 1.3 1.4 1.5"
;;
1.4+)
VERSION="${VERSION} 1.4 1.5"
;;
1.5+)
VERSION="${VERSION} 1.5"
;;
*)
VERSION="${VERSION} ${version}"
;;
esac
done
JAVA_VERSION=`echo "${VERSION}" | sort | uniq`
fi
# Finally try to run one of the ${VMS}
for JAVAVM in ${VMS}; do
JAVA_HOME=`dirname "${JAVAVM}"`
JAVA_HOME=`dirname "${JAVA_HOME}"`
VM=`basename "${JAVA_HOME}"`
# Respect JAVA_VERSION
if [ ! -z "${JAVA_VERSION}" ]; then
VERSION=`echo ${VM} | \
sed -e 's|[^0-9]*\([0-9]\)\.\([0-9]\)\.[0-9]|\1.\2|'`
for version in ${JAVA_VERSION}; do
if [ "${VERSION}" = "${version}" ]; then
VERSION=
break
fi
done
if [ ! -z "${VERSION}" ]; then
continue
fi
fi
# Respect JAVA_OS
if [ ! -z "${JAVA_OS}" ]; then
OS=
case "${VM}" in
diablo*|j*)
OS=native
;;
linux*)
OS=linux
;;
esac
for os in ${JAVA_OS}; do
if [ "${OS}" = "${os}" ]; then
OS=
break
fi
done
if [ ! -z "${OS}" ]; then
continue
fi
fi
# Respect JAVA_VENDOR
if [ ! -z "${JAVA_VENDOR}" ]; then
VENDOR=
case "${VM}" in
diablo*)
VENDOR=bsdjava
;;
j*)
VENDOR=freebsd
;;
linux-blackdown*)
VENDOR=blackdown
;;
linux-ibm*)
VENDOR=ibm
;;
linux-sun*)
VENDOR=sun
;;
esac
for vendor in ${JAVA_VENDOR}; do
if [ "${VENDOR}" = "${vendor}" ]; then
VENDOR=
break
fi
done
if [ ! -z "${VENDOR}" ]; then
continue
fi
fi
# Check if the command exists and try to run it.
if [ ! -z "${JAVA_HOME}" -a \
-x "${JAVA_HOME}/bin/${IAM}" ]; then
export JAVA_HOME
tryJavaCommand "${JAVA_HOME}/bin/${IAM}" "${@}"
elif [ ! -z "${JAVA_HOME}" -a \
-x "${JAVA_HOME}/jre/bin/${IAM}" ]; then
export JAVA_HOME
tryJavaCommand "${JAVA_HOME}/jre/bin/${IAM}" "${@}"
fi
done
echo "${IAM}: error: no suitable JavaVMs found" >&2
exit 1
|