lib/vserver.in[init_vservers]: warn if vservers are enabled but no vserver is found

[matthijs/upstream/backupninja.git] / lib / vserver.in

diff --git a/lib/vserver.in b/lib/vserver.in
index 30b2dfb2c2efa5f27892844fc406fbcc8236d725..bb1a1528334e80bdd7a181b522912648717950c7 100644 (file)
--- a/lib/vserver.in
+++ b/lib/vserver.in
@@ -23,25 +23,52 @@
 ##   - set $vservers_are_available to 'yes';
 ##   - set $found_vservers to the list of all vservers found on the system.
 ## This function has to be run once before a new helper is run.
+## If the argument is "nodialog", use the backupninja's message functions
+## instead of easydialog.
 ##
 init_vservers() {
+   local arg=$1
    # get global variables from the conffile
    setfile $conffile
    getconf vservers no
    getconf VSERVERINFO /usr/sbin/vserver-info
    getconf VSERVER /usr/sbin/vserver
-   getconf VROOTDIR `if [ -f "$VSERVERINFO" ]; then $VSERVERINFO info SYSINFO |grep vserver-Rootdir | awk '{print $2}'; fi`
+   getconf VROOTDIR `if [ -x "$VSERVERINFO" ]; then $VSERVERINFO info SYSINFO | grep '^ *vserver-Rootdir' | awk '{print $2}'; fi`
+   # canonicalize VROOTDIR
+   VROOTDIR=`readlink --canonicalize $VROOTDIR`
    # init this library's global variables
    vservers_are_available=no
    found_vservers=
    selected_vservers=
    host_or_vservers=host
    # check vservers real availability
-   if [ $vservers == yes ]; then
-      [ -n "$VROOTDIR" ] || (msgBox "warning" "VROOTDIR is not set in $conffile and could not be guessed."; return)
-      [ -d "$VROOTDIR" ] || (msgBox "warning" "VROOTDIR ($VROOTDIR) does not exist."; return)
+   if [ $vservers = yes ]; then
+      if [ ! -x "$VSERVERINFO" ]; then
+         `if [ "$arg" = nodialog ]; then echo fatal; else echo "msgBox warning"; fi` \
+            "vservers enabled in $conffile, but vserver-info command was not found. Please set the VSERVERINFO configuration variable to its full path."
+            return
+      fi
+      if [ ! -x "$VSERVER" ]; then
+         `if [ "$arg" = nodialog ]; then echo fatal; else echo "msgBox warning"; fi` \
+            "vservers enabled in $conffile, but vserver command was not found. Please set the VSERVER configuration variable to its full path."
+            return
+      fi
+      if [ -z "$VROOTDIR" ]; then
+         `if [ "$arg" = nodialog ]; then echo fatal; else echo "msgBox warning"; fi` \
+            "vservers enabled in $conffile, but VROOTDIR is not set and could not be guessed."
+            return
+      fi
+      if [ ! -d "$VROOTDIR" ]; then
+         `if [ "$arg" = nodialog ]; then echo fatal; else echo "msgBox warning"; fi` \
+            "vservers enabled in $conffile, but VROOTDIR ($VROOTDIR) does not exist.";
+            return
+      fi
       found_vservers=`ls $VROOTDIR | grep -E -v "lost+found|ARCHIVES" | tr "\n" " "`
-      [ -n "$found_vservers" ] || return
+      if [ -z "$found_vservers" ]; then
+         `if [ "$arg" = nodialog ]; then echo warning; else echo "msgBox warning"; fi` \
+            "vservers enabled in $conffile, but no vserver was found in $VROOTDIR.";      
+            return
+      fi
       vservers_are_available=yes
    fi
 }