diff options
Diffstat (limited to 'core/modules/vbox-src/data/opt/openslx/vmchooser/plugins/virtualbox/includes/init_core.inc')
| -rwxr-xr-x | core/modules/vbox-src/data/opt/openslx/vmchooser/plugins/virtualbox/includes/init_core.inc | 105 |
1 files changed, 101 insertions, 4 deletions
diff --git a/core/modules/vbox-src/data/opt/openslx/vmchooser/plugins/virtualbox/includes/init_core.inc b/core/modules/vbox-src/data/opt/openslx/vmchooser/plugins/virtualbox/includes/init_core.inc index ad3cbe96..8a12dcda 100755 --- a/core/modules/vbox-src/data/opt/openslx/vmchooser/plugins/virtualbox/includes/init_core.inc +++ b/core/modules/vbox-src/data/opt/openslx/vmchooser/plugins/virtualbox/includes/init_core.inc @@ -1,6 +1,105 @@ ####################################################################### # Include: Declaration of core variables and some sanity checks # ####################################################################### + +# wrapper for xmlstarlet to add node with attributes and value +# to the machine configuration +# Usage: +# add_node <parent> <newnode> <attrs...> +# E.g: +# add_node "/VirtualBox" "Machine" "uuid=1234" +add_node() { + if [ $# -lt 2 ]; then + writelog "${FUNCNAME[0]} requires 2 or more args, $# given." + cleanexit 1 + fi + local PARENT="$1" + shift + local NODE="$1" + shift + # if parent does not exists, create it aswell + if ! node_exists "${PARENT}"; then + add_node "${PARENT%/*}" "${PARENT##*/}" + fi + # now go over the list of attributes and directly create + # the xmlstarlet syntax string: -t attr -n <key> -v <value> + local ATTRS_OPTS= + while [ $# -ne 0 ]; do + # expects key=value syntax + local key="${1%=*}" + local value="${1#*=}" + shift + if isempty key || isempty value; then + writelog "${FUNCNAME[0]} expecting key=value, got: $1" + cleanexit 1 + fi + # the xmlstarlet internal newnode var references the newly created node + ATTRS_OPTS+=" -i \$newnode -t attr -n ${key} -v ${value}" + done + # args parsed, now create the node using xmlstarlet + # insert namespace to xpath expression + PARENT="$(print_namespaced "x" "${PARENT}")" + # create node and set the internal variable newnode to it + # to then add the attributes to it + xmlstarlet ed -L -N x="${VBOX_NAMESPACE}" \ + -s "${PARENT}" -t elem -n "${NODE}" \ + --var newnode '$prev' \ + ${ATTRS_OPTS} \ + "${TMPCONFIG}" +} +# edit_attr [--create] <node_xpath> <attr=value> +# --create would create the node if it does not exist +edit_attr() { + local CREATE= + if [ "$1" = "--create" ]; then + CREATE=yo + shift + fi + if [ $# -ne 3 ]; then + writelog "${FUNCNAME[0]} requires 3 args, $# given." + cleanexit 1 + fi + if notempty CREATE && ! node_exists "$1"; then + add_node "${1%/*}" "${1##*/}" \ + "$2=$3" + else + xmlstarlet ed -L -N x="${VBOX_NAMESPACE}" \ + -u "$(print_namespaced "x" "$1")/@$2" \ + -v "$3" \ + "${TMPCONFIG}" + fi +} +del_node() { + if [ $# -ne 1]; then + writelog "${FUNCNAME[0]} requires one arg, $# given." + cleanexit 1 + fi + xmlstarlet ed -L -N x="${VBOX_NAMESPACE}" \ + -d "$(print_namespaced "x" "$1")" \ + "${TMPCONFIG}" +} +node_exists() { + if [ $# -ne 1 ]; then + writelog "${FUNCNAME[0]} requires one arg, $# given." + cleanexit 1 + fi + xmlstarlet -q sel -N x="${VBOX_NAMESPACE}" \ + -t -c "$(print_namespaced "x" "$1")" \ + "${TMPCONFIG}" +} +# adds the vbox namespace to an xpath expression using +# the given placeholder for it. +# e.g. print_namespaced "x" "/VirtualBox/Machine" +# would echo "/x:VirtualBox/x:Machine" +print_namespaced() { + if [ $# -ne 2 ]; then + writelog "${FUNCNAME[0]} expects 2 arguments, $# given." + cleanexit 1 + fi + # add namespace on single '/' not doubles! + sed -E 's,(/)*/,\1/'"$1"':,g' <<< "$2" +} + init_core() { # check for variables that should have been set by the generic run-virt if ! isset VM_CLEANNAME IMG_BASENAME SRC_IMG_ABSOLUTE VM_OS_TYPE; then @@ -38,10 +137,8 @@ init_core() { declare -rg VBOX_HDD_LINK="${VM_DISKFILE_RO}" export VBOX_USER_HOME="${VBOX_ROOT}" # instead of $HOME/.VirtualBox - # finally generate a random machine UUID, using some default if it fails. - declare -g MACHINE_UUID="$(cat /proc/sys/kernel/random/uuid)" - notempty MACHINE_UUID || MACHINE_UUID="00000000-0000-0000-0000-12345678" - readonly MACHINE_UUID + # xml namespace for vbox configs + declare -rg VBOX_NAMESPACE="http://www.virtualbox.org/" writelog "Directories:" writelog "\tConfig dir:\t\t$VBOX_ROOT" |