lib/vserver: added vservers_running function, use it in sys handler (to ease future...

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

diff --git a/lib/vserver.in b/lib/vserver.in
index 7108dac78563aea64ffef4c43e6f040a04d2c261..153a9b0241929c661888a4c20fc3b2654ddf1755 100644 (file)
--- a/lib/vserver.in
+++ b/lib/vserver.in
@@ -33,7 +33,9 @@ init_vservers() {
    getconf vservers no
    getconf VSERVERINFO /usr/sbin/vserver-info
    getconf VSERVER /usr/sbin/vserver
-   getconf VROOTDIR `if [ -x "$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 $2}'; fi`
+   # canonicalize VROOTDIR
+   [ -z "$VROOTDIR" ] || VROOTDIR=`readlink --canonicalize $VROOTDIR`
    # init this library's global variables
    vservers_are_available=no
    found_vservers=
@@ -61,14 +63,53 @@ init_vservers() {
             "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
+      found_vservers=`ls $VROOTDIR | grep -E -v "lost\+found|ARCHIVES" | tr "\n" " "`
+      if [ -z "$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
 }
 
 ##
-## If the argument is the name of a vserver selected use by the current helper,
+## If all the arguments are existing vservers names, returns 0.
+## Else, returns 1. Also returns 1 if no argument is given.
+##
+vservers_exist() {
+   [ $# -ge 1 ] || return 1
+   local args="$1"
+   local vserver i found
+   for vserver in $args ; do
+      found=no
+      for i in $found_vservers ; do
+         if [ $vserver = $i ]; then
+            found=yes
+            break
+         fi
+      done
+      [ $found = yes ] || return 1
+   done
+   return 0
+}
+
+##
+## If all the arguments are running vservers names, returns 0.
+## Else, returns 1. Also returns 1 if no argument is given.
+##
+vservers_running() {
+   [ $# -ge 1 ] || return 1
+   local args="$1"
+   local vserver
+   for vserver in $args ; do
+      $VSERVERINFO -q $vserver RUNNING || return 1
+   done
+   return 0
+}
+
+##
+## If the argument is the name of a vserver selected by the current helper,
 ## echoes 'on' and returns 0.
 ## Else, echoes 'off' and returns 1.
 ##