test "$3" || return 0
local _tmp=$($_VPS ax | $_AWK '{print $2}' | $_GREP -x "$_ctx" | $_WC -l )
+ let _tmp=_tmp+0
eval "$3"=\$_tmp
if test "$_tmp" = 0; then
"$@"
fi
}
+
+## Usage: pkgmgmt.guessStyle <vserver> <resultvar>
+function pkgmgmt.guessStyle()
+{
+ local vdir=$($_VSERVER_INFO "$1" VDIR) || {
+ echo $"Can not determine vserver-root" >&2
+ return 1
+ }
+ local cfgdir=$($_VSERVER_INFO "$1" APPDIR pkgmgmt) || :
+
+ if test "$cfgdir" -a -e "$cfgdir"/style; then
+ read style <"$cfgdir"/style
+ elif test -e "$vdir"/etc/redhat-release -o -e "$vdir"/etc/fedora-release; then
+ style=redhat
+ elif test -e "$vdir"/etc/mandrake-release; then
+ style=mandrake
+ elif test -e "$vdir"/etc/debian_version; then
+ style=debian
+ else
+ echo $"Can not determine packagemanagement style" >&2
+ return 1
+ fi
+
+ eval $2=\$style
+ return 0
+}
+
+## Usage: pkgmgmt.isInternal <vserver>
+## returns true iff <vserver> is configured for internal packagemanagement
+## A typical application is
+## | is_external=
+## | pkgmgmt.isInternal "$vserver" || is_external=1
+function pkgmgmt.isInternal
+{
+ local cfgdir=$($_VSERVER_INFO "$1" APPDIR pkgmgmt) || :
+
+ test -z "$cfgdir" -o ! -d "$cfgdir" -o -e "$cfgdir"/internal
+}