From 35135af462439117f886fb4698321ab37b41e8bb Mon Sep 17 00:00:00 2001
From: "Alex A. Naanou" <alex.nanou@gmail.com>
Date: Sun, 11 Dec 2016 03:34:30 +0300
Subject: [PATCH] updated features...

Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
---
 lib/features.js | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/lib/features.js b/lib/features.js
index 62f111a..a4e8147 100755
--- a/lib/features.js
+++ b/lib/features.js
@@ -98,7 +98,9 @@ module.FeatureProto = {
 
 		// mixin actions...
 		if(this.actions != null){
-			actions.mixin(this.actions)
+			this.tag ? 
+				actions.mixin(this.actions, {source_tag: this.tag}) 
+				: actions.mixin(this.actions) 
 		}
 
 		// install handlers...
@@ -346,6 +348,8 @@ var FeatureSetProto = {
 		var missing = {}
 		var conflicts = {}
 
+		var exclusive = {}
+
 
 		// reverse dependency cache... 
 		var dependants = {}
@@ -392,6 +396,7 @@ var FeatureSetProto = {
 
 			var deps = that[k].depends || []
 			var refs = that[k].suggested || []
+			var excl = that[k].exclusive || []
 
 			deps.forEach(function(n){
 				// expand lst with dependencies....
@@ -406,8 +411,16 @@ var FeatureSetProto = {
 			refs.forEach(function(n){
 				lst.indexOf(n) < 0 && lst.push(n)
 			})
+
+			// build exclusive table...
+			excl.forEach(function(n){
+				var l = exclusive[n] = exclusive[n] || []
+				l.indexOf(k) < 0 && l.push(k)
+			})
 		}
 
+		console.log('EXCL:', exclusive)
+
 		// sort features by priority or position...
 		lst = lst
 			// remove undefined and non-features...
@@ -433,7 +446,7 @@ var FeatureSetProto = {
 			.filter(function(e){ return disabled.indexOf(e) < 0 })
 			// build the sort table: [ <priority>, <index>, <elem> ]
 			.map(function(e, i){ return [ that[e].getPriority(), i, e ] })
-			// do the sort...
+			// sort by priority then index...
 			// NOTE: JS compares lists as strings so we have to compare 
 			// 		the list manually...
 			.sort(function(a, b){ return a[0] - b[0] || a[1] - b[1] })