1 # -*- mode: sh; sh-basic-offset: 3; indent-tabs-mode: nil; -*-
3 #####################################################
4 ## VSERVERS RELATED FUNCTIONS FOR NINJAHELPER
7 ## - easydialog library
10 ## Global variables used and modified here:
11 ## - $vservers_are_available (yes/no)
12 ## - $found_vservers (list)
13 ## - $selected_vservers (list)
14 ## - $host_or_vservers (host/vservers/both)
18 ## Get vservers-related variables.
19 ## Then, if Vservers are enabled, check that:
20 ## - VROOTDIR is valid;
21 ## - at least one vserver can be found.
22 ## If, and only if, the above conditions are all true:
23 ## - set $vservers_are_available to 'yes';
24 ## - set $found_vservers to the list of all vservers found on the system.
25 ## This function has to be run once before a new helper is run.
26 ## If the argument is "nodialog", use the backupninja's message functions
27 ## instead of easydialog.
31 # get global variables from the conffile
34 getconf VSERVERINFO /usr/sbin/vserver-info
35 getconf VSERVER /usr/sbin/vserver
36 getconf VROOTDIR `if [ -x "$VSERVERINFO" ]; then $VSERVERINFO info SYSINFO | grep '^ *vserver-Rootdir' | @AWK@ '{print $2}'; fi`
37 # canonicalize VROOTDIR
38 [ -z "$VROOTDIR" ] || VROOTDIR=`readlink --canonicalize $VROOTDIR`
39 # init this library's global variables
40 vservers_are_available=no
44 # check vservers real availability
45 if [ $vservers = yes ]; then
46 if [ ! -x "$VSERVERINFO" ]; then
47 `if [ "$arg" = nodialog ]; then echo fatal; else echo "msgBox warning"; fi` \
48 "vservers enabled in $conffile, but vserver-info command was not found. Please set the VSERVERINFO configuration variable to its full path."
51 if [ ! -x "$VSERVER" ]; then
52 `if [ "$arg" = nodialog ]; then echo fatal; else echo "msgBox warning"; fi` \
53 "vservers enabled in $conffile, but vserver command was not found. Please set the VSERVER configuration variable to its full path."
56 if [ -z "$VROOTDIR" ]; then
57 `if [ "$arg" = nodialog ]; then echo fatal; else echo "msgBox warning"; fi` \
58 "vservers enabled in $conffile, but VROOTDIR is not set and could not be guessed."
61 if [ ! -d "$VROOTDIR" ]; then
62 `if [ "$arg" = nodialog ]; then echo fatal; else echo "msgBox warning"; fi` \
63 "vservers enabled in $conffile, but VROOTDIR ($VROOTDIR) does not exist.";
66 found_vservers=`ls $VROOTDIR | grep -E -v "lost\+found|ARCHIVES" | tr "\n" " "`
67 if [ -z "$found_vservers" ]; then
68 `if [ "$arg" = nodialog ]; then echo warning; else echo "msgBox warning"; fi` \
69 "vservers enabled in $conffile, but no vserver was found in $VROOTDIR.";
72 vservers_are_available=yes
77 ## If all the arguments are existing vservers names, returns 0.
78 ## Else, returns 1. Also returns 1 if no argument is given.
81 [ $# -ge 1 ] || return 1
84 for vserver in $args ; do
86 for i in $found_vservers ; do
87 if [ $vserver = $i ]; then
92 [ $found = yes ] || return 1
98 ## If all the arguments are running vservers names, returns 0.
99 ## Else, returns 1. Also returns 1 if no argument is given.
102 [ $# -ge 1 ] || return 1
105 for vserver in $args ; do
106 $VSERVERINFO -q $vserver RUNNING || return 1
112 ## If the argument is the name of a vserver selected by the current helper,
113 ## echoes 'on' and returns 0.
114 ## Else, echoes 'off' and returns 1.
116 vserver_is_selected() {
118 local vserver_is_selected=1
120 for i in $selected_vservers ; do
121 [ "$vserver" == "$i" ] && vserver_is_selected=0
123 if [ $vserver_is_selected = 0 ]; then
128 return $vserver_is_selected
132 ## Have the user choose one Vserver among the existing ones.
133 ## Set $selected_vservers to the chosen one's name.
134 ## Returns 1 if cancelled or if Vservers are not available.
136 choose_one_vserver() {
137 [ "$vservers_are_available" == "yes" ] || return 1
142 while [ -z "$REPLY" ]; do
143 [ -n "$selected_vservers" ] && setDefault $selected_vservers
144 listBegin "$title" "Choose at least one Linux-Vserver to backup:"
145 for vserver in $found_vservers; do
146 listItem "$vserver" "Backup $vserver vserver"
149 [ $? = 0 ] || return 1
151 selected_vservers=$REPLY
155 ## If Vservers are not enabled, set host_or_vservers='host' and then return
156 ## Else, have the user choose if he/she wants to perform the backup on the host
157 ## system or on one Vserver.
158 ## Set, respectively, $host_or_vservers to 'host' or 'vservers'.
159 ## Returns 1 if cancelled.
161 choose_host_or_one_vserver() {
162 if [ "$vservers_are_available" != "yes" ]
164 host_or_vservers='host'
168 # if there is one, set the previously chosen item as the default
169 [ -n "$host_or_vservers" ] && setDefault $host_or_vservers
170 menuBox "$title - src" "Do you want to operate on the host system and/or on vservers?" \
171 "host" "Host system" \
172 "vserver" "One Vserver"
173 [ $? = 0 ] || return 1
176 host_or_vservers='host'
179 host_or_vservers='vservers'
185 ## If Vservers are not enabled, set host_or_vservers='host' and then return
186 ## Else, have the user choose the target he/she wants to perform the backup on:
187 ## - host system only;
188 ## - some vservers only;
189 ## - both the host system and some vservers.
190 ## Set, respectively, $host_or_vservers to 'host', 'vservers', or 'both'
191 ## Returns 1 if cancelled.
193 choose_host_or_vservers_or_both() {
194 if [ "$vservers_are_available" != "yes" ]
196 host_or_vservers='host'
200 # if there is one, set the previously chosen item as the default
201 [ -n "$host_or_vservers" ] && setDefault $host_or_vservers
202 menuBox "$title - src" "Do you want to operate on the host system and/or on vservers?" \
203 "host" "Host system only" \
204 "vservers" "Vservers only" \
205 "both" "Host system and Vservers"
206 [ $? = 0 ] || return 1
209 host_or_vservers='host'
212 host_or_vservers='vservers'
215 host_or_vservers='both'
221 ## Have the user choose among "all vservers" and a not-empty subset of these.
222 ## Set $selected_vservers to 'all' or to a space-separated name list.
223 ## Returns 1 if cancelled or if Vservers are not available.
225 choose_one_or_more_vservers() {
226 [ "$vservers_are_available" == "yes" ] || return 1
230 booleanBox "$title" "Do you want to backup all vservers?" ` [ -z "$selected_vservers" -o "$selected_vservers" == "all" ] || echo no`
232 selected_vservers="all"
234 # choose among the existing vservers
236 local vserver_was_selected=
238 while [ -z "$REPLY" ]; do
239 listBegin "$title" "Choose at least one Linux-Vserver to backup:"
240 # list existing vservers, preselecting the previously selected ones
241 for vserver in $found_vservers; do
242 listItem "$vserver" "Backup $vserver vserver" `vserver_is_selected $vserver`
244 listDisplay checklist
245 [ $? = 0 ] || return 1
247 # remove quotes around each vserver name
248 selected_vservers=`echo $REPLY | tr -d '"'`