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gentoo-overlay/eclass/java-vm-2.eclass

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# Copyright 1999-2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/eclass/java-vm-2.eclass,v 1.46 2012/07/23 19:06:20 sera Exp $
# @ECLASS: java-vm-2.eclass
# @MAINTAINER:
# java@gentoo.org
# @BLURB: Java Virtual Machine eclass
# @DESCRIPTION:
# This eclass provides functionality which assists with installing
# virtual machines, and ensures that they are recognized by java-config.
inherit eutils fdo-mime multilib pax-utils prefix
EXPORT_FUNCTIONS pkg_setup pkg_postinst pkg_prerm pkg_postrm
RDEPEND="
=dev-java/java-config-2*
|| ( app-admin/eselect-java <dev-java/java-config-2.2 )"
DEPEND="${RDEPEND}"
has "${EAPI}" 0 1 && DEPEND="${DEPEND} >=sys-apps/portage-2.1"
export WANT_JAVA_CONFIG=2
# @ECLASS-VARIABLE: JAVA_VM_CONFIG_DIR
# @INTERNAL
# @DESCRIPTION:
# Where to place the vm env file.
JAVA_VM_CONFIG_DIR="/usr/share/java-config-2/vm"
# @ECLASS-VARIABLE: JAVA_VM_DIR
# @INTERNAL
# @DESCRIPTION:
# Base directory for vm links.
JAVA_VM_DIR="/usr/lib/jvm"
# @ECLASS-VARIABLE: JAVA_VM_SYSTEM
# @INTERNAL
# @DESCRIPTION:
# Link for system-vm
JAVA_VM_SYSTEM="/etc/java-config-2/current-system-vm"
# @ECLASS-VARIABLE: JAVA_VM_BUILD_ONLY
# @DESCRIPTION:
# Set to YES to mark a vm as build-only.
JAVA_VM_BUILD_ONLY="${JAVA_VM_BUILD_ONLY:-FALSE}"
# @FUNCTION: java-vm-2_pkg_setup
# @DESCRIPTION:
# default pkg_setup
#
# Initialize vm handle.
java-vm-2_pkg_setup() {
if [[ "${SLOT}" != "0" ]]; then
VMHANDLE=${PN}-${SLOT}
else
VMHANDLE=${PN}
fi
}
# @FUNCTION: java-vm-2_pkg_postinst
# @DESCRIPTION:
# default pkg_postinst
#
# Set the generation-2 system VM and Java plugin, if it isn't set or the
# setting is invalid. Also update mime database.
java-vm-2_pkg_postinst() {
# Note that we cannot rely on java-config here, as it will silently recognize
# e.g. icedtea6-bin as valid system VM if icedtea6 is set but invalid (e.g. due
# to the migration to icedtea-6)
if [[ ! -L "${ROOT}${JAVA_VM_SYSTEM}" ]]; then
java_set_default_vm_
else
local current_vm_path=$(readlink "${ROOT}${JAVA_VM_SYSTEM}")
local current_vm=$(basename "${ROOT}${current_vm_path}")
if [[ ! -L "${ROOT}${JAVA_VM_DIR}/${current_vm}" ]]; then
java_set_default_vm_
fi
fi
java-vm_check-nsplugin
java_mozilla_clean_
fdo-mime_desktop_database_update
}
# @FUNCTION: java-vm_check-nsplugin
# @INTERNAL
# @DESCRIPTION:
# Check if the nsplugin needs updating
java-vm_check-nsplugin() {
local libdir
if [[ ${VMHANDLE} =~ emul-linux-x86 ]]; then
libdir=lib32
else
libdir=lib
fi
has ${EAPI:-0} 0 1 2 && ! use prefix && EPREFIX=
# Install a default nsplugin if we don't already have one
if in_iuse nsplugin && use nsplugin; then
if [[ ! -f "${ROOT}${EPREFIX}"/usr/${libdir}/nsbrowser/plugins/javaplugin.so ]]; then
einfo "No system nsplugin currently set."
java-vm_set-nsplugin
else
einfo "System nsplugin is already set, not changing it."
fi
einfo "You can change nsplugin with eselect java-nsplugin."
fi
}
# @FUNCTION: java-vm_set-nsplugin
# @INTERNAL
# @DESCRIPTION:
# Set the nsplugin implemetation.
java-vm_set-nsplugin() {
local extra_args
if use amd64; then
if [[ ${VMHANDLE} =~ emul-linux-x86 ]]; then
extra_args="32bit"
else
extra_args="64bit"
fi
einfo "Setting ${extra_args} nsplugin to ${VMHANDLE}"
else
einfo "Setting nsplugin to ${VMHANDLE}..."
fi
eselect java-nsplugin set ${extra_args} ${VMHANDLE}
}
# @FUNCTION: java-vm-2_pkg_prerm
# @DESCRIPTION:
# default pkg_prerm
#
# Warn user if removing system-vm.
java-vm-2_pkg_prerm() {
# Although REPLACED_BY_VERSION is EAPI=4, we shouldn't need to check EAPI for this use case
if [[ "$(GENTOO_VM="" java-config -f 2>/dev/null)" == "${VMHANDLE}" && -z "${REPLACED_BY_VERSION}" ]]; then
ewarn "It appears you are removing your system-vm!"
ewarn "Please run java-config -L to list available VMs,"
ewarn "then use java-config -S to set a new system-vm!"
fi
}
# @FUNCTION: java-vm-2_pkg_postrm
# @DESCRIPTION:
# default pkg_postrm
#
# Update mime database.
java-vm-2_pkg_postrm() {
fdo-mime_desktop_database_update
}
# @FUNCTION: java_set_default_vm_
# @INTERNAL
# @DESCRIPTION:
# Set system-vm.
java_set_default_vm_() {
java-config-2 --set-system-vm="${VMHANDLE}"
einfo " ${P} set as the default system-vm."
}
# @FUNCTION: get_system_arch
# @DESCRIPTION:
# Get Java specific arch name.
get_system_arch() {
local sarch
sarch=$(echo ${ARCH} | sed -e s/[i]*.86/i386/ -e s/x86_64/amd64/ -e s/sun4u/sparc/ -e s/sparc64/sparc/ -e s/arm.*/arm/ -e s/sa110/arm/)
if [ -z "${sarch}" ]; then
sarch=$(uname -m | sed -e s/[i]*.86/i386/ -e s/x86_64/amd64/ -e s/sun4u/sparc/ -e s/sparc64/sparc/ -e s/arm.*/arm/ -e s/sa110/arm/)
fi
echo ${sarch}
}
# @FUNCTION: set_java_env
# @DESCRIPTION:
# Installs a vm env file.
# TODO rename to something more evident, like install_env_file
set_java_env() {
debug-print-function ${FUNCNAME} $*
if has ${EAPI:-0} 0 1 2 && ! use prefix ; then
ED="${D}"
EPREFIX=""
fi
local platform="$(get_system_arch)"
local env_file="${ED}${JAVA_VM_CONFIG_DIR}/${VMHANDLE}"
local old_env_file="${ED}/etc/env.d/java/20${P}"
if [[ ${1} ]]; then
local source_env_file="${1}"
else
local source_env_file="${FILESDIR}/${VMHANDLE}.env"
fi
if [[ ! -f ${source_env_file} ]]; then
die "Unable to find the env file: ${source_env_file}"
fi
dodir ${JAVA_VM_CONFIG_DIR}
sed \
-e "s/@P@/${P}/g" \
-e "s/@PN@/${PN}/g" \
-e "s/@PV@/${PV}/g" \
-e "s/@PF@/${PF}/g" \
-e "s/@SLOT@/${SLOT}/g" \
-e "s/@PLATFORM@/${platform}/g" \
-e "s/@LIBDIR@/$(get_libdir)/g" \
-e "/^LDPATH=.*lib\\/\\\"/s|\"\\(.*\\)\"|\"\\1${platform}/:\\1${platform}/server/\"|" \
< "${source_env_file}" \
> "${env_file}" || die "sed failed"
(
echo "VMHANDLE=\"${VMHANDLE}\""
echo "BUILD_ONLY=\"${JAVA_VM_BUILD_ONLY}\""
) >> "${env_file}"
eprefixify ${env_file}
[[ -n ${JAVA_PROVIDE} ]] && echo "PROVIDES=\"${JAVA_PROVIDE}\"" >> ${env_file}
local java_home=$(source "${env_file}"; echo ${JAVA_HOME})
[[ -z ${java_home} ]] && die "No JAVA_HOME defined in ${env_file}"
# Make the symlink
dodir "${JAVA_VM_DIR}"
dosym ${java_home#${EPREFIX}} ${JAVA_VM_DIR}/${VMHANDLE} \
|| die "Failed to make VM symlink at ${JAVA_VM_DIR}/${VMHANDLE}"
}
# @FUNCTION: java-vm_set-pax-markings
# @DESCRIPTION:
# Set PaX markings on all JDK/JRE executables to allow code-generation on
# the heap by the JIT compiler.
#
# The markings need to be set prior to the first invocation of the the freshly
# built / installed VM. Be it before creating the Class Data Sharing archive or
# generating cacerts. Otherwise a PaX enabled kernel will kill the VM.
# Bug #215225 #389751
#
# @CODE
# Parameters:
# $1 - JDK/JRE base directory.
#
# Examples:
# java-vm_set-pax-markings "${S}"
# java-vm_set-pax-markings "${ED}"/opt/${P}
# @CODE
java-vm_set-pax-markings() {
debug-print-function ${FUNCNAME} "$*"
[[ $# -ne 1 ]] && die "${FUNCNAME}: takes exactly one argument"
[[ ! -f "${1}"/bin/java ]] \
&& die "${FUNCNAME}: argument needs to be JDK/JRE base directory"
local executables=( "${1}"/bin/* )
[[ -d "${1}"/jre ]] && executables+=( "${1}"/jre/bin/* )
# Ensure a PaX header is created.
local pax_markings="C"
# Usally disabeling MPROTECT is sufficent.
local pax_markings+="m"
# On x86 for heap sizes over 700MB disable SEGMEXEC and PAGEEXEC as well.
use x86 && pax_markings+="sp"
pax-mark ${pax_markings} $(list-paxables "${executables[@]}")
}
# @FUNCTION: java-vm_revdep-mask
# @DESCRIPTION:
# Installs a revdep-rebuild control file which SEARCH_DIR_MASK set to the path
# where the VM is installed. Prevents pointless rebuilds - see bug #177925.
# Also gives a notice to the user.
#
# @CODE
# Parameters:
# $1 - Path of the VM (defaults to /opt/${P} if not set)
#
# Examples:
# java-vm_revdep-mask
# java-vm_revdep-mask /path/to/jdk/
#
# @CODE
java-vm_revdep-mask() {
if has ${EAPI:-0} 0 1 2 && ! use prefix; then
ED="${D}"
EPREFIX=
fi
local VMROOT="${1-"${EPREFIX}"/opt/${P}}"
dodir /etc/revdep-rebuild/
echo "SEARCH_DIRS_MASK=\"${VMROOT}\""> "${ED}/etc/revdep-rebuild/61-${VMHANDLE}"
}
# @FUNCTION: java-vm_sandbox-predict
# @DESCRIPTION:
# Install a sandbox control file. Specified paths won't cause a sandbox
# violation if opened read write but no write takes place. See bug 388937#c1
#
# @CODE
# Examples:
# java-vm_sandbox-predict /dev/random /proc/self/coredump_filter
# @CODE
java-vm_sandbox-predict() {
debug-print-function ${FUNCNAME} "$*"
[[ -z "${1}" ]] && die "${FUNCNAME} takes at least one argument"
has ${EAPI:-0} 0 1 2 && ! use prefix && ED="${D}"
local path path_arr=("$@")
# subshell this to prevent IFS bleeding out dependant on bash version.
# could use local, which *should* work, but that requires a lot of testing.
path=$(IFS=":"; echo "${path_arr[*]}")
dodir /etc/sandbox.d
echo "SANDBOX_PREDICT=\"${path}\"" > "${ED}/etc/sandbox.d/20${VMHANDLE}" \
|| die "Failed to write sandbox control file"
}
# @FUNCTION: java_get_plugin_dir_
# @INTERNAL
# @DESCRIPTION:
# Get the java plugin dir.
java_get_plugin_dir_() {
has ${EAPI:-0} 0 1 2 && ! use prefix && EPREFIX=
echo "${EPREFIX}"/usr/$(get_libdir)/nsbrowser/plugins
}
# @FUNCTION: install_mozilla_plugin
# @DESCRIPTION:
# Register a netscape java-plugin.
install_mozilla_plugin() {
local plugin="${1}"
local variant="${2}"
has ${EAPI:-0} 0 1 2 && ! use prefix && ED="${D}"
if [[ ! -f "${ED}/${plugin}" ]]; then
die "Cannot find mozilla plugin at ${ED}/${plugin}"
fi
if [[ -n "${variant}" ]]; then
variant="-${variant}"
fi
local plugin_dir="/usr/share/java-config-2/nsplugin"
dodir "${plugin_dir}"
dosym "${plugin}" "${plugin_dir}/${VMHANDLE}${variant}-javaplugin.so"
}
# @FUNCTION: java_mozilla_clean_
# @INTERNAL
# @DESCRIPTION:
# Because previously some ebuilds installed symlinks outside of pkg_install
# and are left behind, which forces you to manualy remove them to select the
# jdk/jre you want to use for java
java_mozilla_clean_() {
local plugin_dir=$(java_get_plugin_dir_)
for file in ${plugin_dir}/javaplugin_*; do
rm -f ${file}
done
for file in ${plugin_dir}/libjavaplugin*; do
rm -f ${file}
done
}