implemented realm detection and improved configuration files loading

README.md

@@ -326,6 +326,8 @@ The following table is giving a list of error codes with explanation:
 | 16        | Invalid options provided with cron mode activated           |
 | 17        | Missing or invalid status file, can't resume                |
 | 18        | Module file don't exists or is empty                        |
+| 20        | Ambigous realm with autodetection                           |
+| 21        | Unconsistant directory structure with configured realm      |
 | 50..100   | Error in module execution                                   |
 | 126       | Command exists but is not executable                        |
 | 127       | Command not found                                           |

init.sh

@@ -36,7 +36,7 @@ export LC_ALL=C
 export LANG=C
 
 # Version of init
-export VERSION="0.99.20"
+export VERSION="0.99.21"
 
 # Store script's path (realpath -s resolve symlinks if init.sh is a symlink)
 export MYPATH=$(dirname "$(realpath -s "$0")")
@@ -44,6 +44,10 @@ export MYPATH=$(dirname "$(realpath -s "$0")")
 # Get hostname
 export HOSTNAME=$(hostname)
 
+# Get realm or domain name
+export REALM=${REALM:-$(hostname -d)}
+echo $REALM
+
 # Load libraries
 for lib in $MYPATH/lib/*.sh; do
     . "$lib"

lib/command_line.sh

@@ -182,7 +182,7 @@ process_commandline_and_vars()
 		die 18
 	    fi
 	done
-    else
+    elif [[ $RUN_SHELL != "true" ]]; then
 	prnt E "No module to execute!"
 	die 5
     fi

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