implemented realm detection and improved configuration files loading

lib/loaders.sh

@@ -59,6 +59,17 @@ export -f load_autoconf
 #   3) <workingdir>/conf/init.conf.sh      	 (Generic default, for testing)
 load_configuration()
 {
+    # --------------------------------------------------------------------------
+    # Get list of possible files to load when REALM is not declared
+    get_files()
+    {
+	for d in $MYPATH/conf/*; do
+	    if [[ -d $d ]]; then
+		find $d -maxdepth 1 -name "$HOSTNAME.conf.sh"
+	    fi
+	done
+    }
+    
     if [[ -n $CONFFILES ]]; then
 	local f=
 	for f in $CONFFILES; do
@@ -73,21 +84,48 @@ load_configuration()
 	unset f
     else
 	prnt I "Loading configuration..."
+	if [[ -z $REALM ]]; then
+	    prnt W "REALM is undeclared, trying to scan configuration subdirectories for this host..."
+	    local found_realms=$(get_files)
+	    case "$(echo $found_realms | wc -w)" in
+		"0")
+		    : # We do nothing as we'll check for other scenario
+		;;
+		"1")
+		    export REALM="$(basename $(dirname $found_realms))"
+		    local auto_realm="$REALM"
+		;;
+		*)
+		    prnt E "More than one file correspond to that host. This is ambigous and need to be fixed."
+		    prnt m "You can fix that situation with one of those actions:"
+		    prnt m "\t * Declare a REALM variable with the actual domain name of the host."
+		    prnt m "\t * Give manually the configuration file using the --file option."
+		    prnt m "\t * Configure the domain name of the host."
+		    die 20 --force
+		;;
+	    esac
+	fi
 	if [[ -e $MYPATH/conf/$REALM/$HOSTNAME.conf.sh ]]; then
 	    prnt I "A specific configuration will be used."
-	    . $MYPATH/conf/$HOSTNAME.conf.sh
+	    local cnffile=$MYPATH/conf/$REALM/$HOSTNAME.conf.sh
+	    if [[ -n $auto_realm && $REALM != $auto_realm ]]; then
+		prnt E "The domain name in the confinguration file don't correspond to the detected domain through directory structure."
+		die 21 --force
+	    fi
 	elif [[ -e $MYPATH/conf/$HOSTNAME.conf.sh ]]; then
 	    prnt I "A specific configuration will be used."
-	    . $MYPATH/conf/$HOSTNAME.conf.sh
+	    local cnffile=$MYPATH/conf/$HOSTNAME.conf.sh
 	else
 	    if [[ -e $MYPATH/conf/init.conf.sh ]]; then
 		prnt I "A generic configuration will be used."
-		. $MYPATH/conf/init.conf.sh
+		local cnffile=$MYPATH/conf/init.conf.sh
 	    else
 		prnt E "No configuration found, impossible to continue."
 		die 6 --force
 	    fi
 	fi
+	prnt I "Loading $cnffile ..."
+	. $cnffile
     fi
 }
 export -f load_configuration