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# Copyright 1999-2005 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Id: $
# Based on kernel.eselect
DESCRIPTION="Manage the Java system and user VM"
MAINTAINER="java@gentoo.org"
SVN_DATE='$Date: $'
VERSION=$(svn_date_to_version "${SVN_DATE}" )
VM_BASE=/usr/lib/jvm/
VM_SYSTEM=/etc/java-config/system-vm
VM_USER=${HOME}/.gentoo/user-vm
find_targets() {
local f
for f in ${VM_BASE}/* ; do
[[ -L ${f} ]] && echo $(basename ${f})
done
}
sym_to_vm() {
basename $(readlink "${1}")
}
### show action ###
describe_show() {
echo "Show the current vm"
}
do_show() {
if [[ ${1} == "system" ]]; then
my_show ${VM_SYSTEM} 'system-vm'
elif [[ ${1} == "user" ]]; then
my_show ${VM_USER} 'user-vm'
else
my_show ${VM_SYSTEM} 'system-vm'
my_show ${VM_USER} 'user-vm'
fi
}
my_show() {
local symlink=${1} vm_type=${2}
write_list_start "Current ${vm_type}"
if [[ -L "${symlink}" ]] ; then
write_kv_list_entry "$(sym_to_vm ${symlink})" ""
else
write_kv_list_entry "(unset)" ""
fi
}
### list action ###
describe_list() {
echo "List available vms"
}
do_list() {
targets=( $(find_targets) )
write_list_start "Available java vms:"
if [[ -n ${targets[@]} ]] ; then
local i system_name user_name
[[ -L ${VM_SYSTEM} ]] && system_name=$(sym_to_vm ${VM_SYSTEM})
[[ -L ${VM_USER} ]] && user_name=$(sym_to_vm ${VM_USER})
for (( i = 0 ; i < ${#targets[@]} ; i = i + 1 )) ; do
if [[ ${targets[${i}]} == ${system_name} ]]; then
targets[${i}]="${targets[${i}]} $(highlight 'system-vm')"
fi
if [[ ${targets[${i}]} == ${user_user} ]]; then
targets[${i}]="${targets[${i}]} $(highlight 'user-vm' )"
fi
done
write_numbered_list "${targets[@]}"
else
write_kv_list_entry "(none found)" ""
fi
}
### set action ###
describe_set() {
echo "Set a new system vm"
}
do_set() {
if [[ ${#} != 2 ]]; then
die -q "Usage [user|system] [vm]"
elif [[ ${1} == "system" ]]; then
if [[ -w $(dirname ${VM_SYSTEM}) ]]; then
my_set ${VM_SYSTEM} ${2}
else
die -q "Sorry, you don't have enough premission to set system"
fi
elif [[ ${1} == "user" ]]; then
my_set ${VM_USER} ${2}
fi
}
my_set() {
local target=${2} symlink=${1}
if [[ -z ${target} ]] ; then
die -q "You didn't tell me what to set the symlink to"
elif [[ -L "${symlink}" ]] ; then
set_symlink "${target}" "${symlink}" || die -q "Couldn't set a new symlink"
elif [[ -e "${symlink}" ]] ; then
die -q "Sorry, ${symlink}"
else
set_symlink "${target}" "${symlink}"|| die -q "Couldn't set a new symlink"
fi
}
set_symlink() {
local target=${1} symlink=${2}
if is_number "${target}" ; then
targets=( $(find_targets) )
target=${targets[$(( ${target} - 1 ))]}
fi
if [[ -z ${target} ]] ; then
die -q "Target \"${1}\" doesn't appear to be valid!"
elif [[ -d "${VM_BASE}/${target}" ]] ; then
local sym_dir=$(dirname ${symlink})
if [[ ! -d ${sym_dir} ]]; then
mkdir -p ${sym_dir} || die -q "Could not create ${my_dir}"
fi
ln -snf "${VM_BASE}/${target}" "${symlink}"
else
die -q "Target \"${1}\" doesn't appear to be valid!"
fi
}
# vim: set ft=eselect :
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