flynx/features.js
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added ability to depend on exclusive tags...

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Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
Alex A. Naanou 2016-12-10 20:01:58 +03:00
parent 9b7e90e241
commit eb90a1c388
2 changed files with 28 additions and 4 deletions
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28
features.js
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@ -42,6 +42,9 @@ var args2array = function(a){ return [].slice.call(a) }
// making each sub-feature a strict dependency. // making each sub-feature a strict dependency.
// .depends - feature dependencies -- tags of features that must setup // .depends - feature dependencies -- tags of features that must setup
// before the feature (list | null) // before the feature (list | null)
// NOTE: a feature can depend on an exclusive tag, this will
// remove the need to track which specific exclusive
// tagged feature is loaded...
// .exclusive - feature exclusivity tags (list | null) // .exclusive - feature exclusivity tags (list | null)
// an exclusivity group enforces that only one feature in // an exclusivity group enforces that only one feature in
// it will be run, i.e. the first / highest priority. // it will be run, i.e. the first / highest priority.
@ -348,6 +351,8 @@ var FeatureSetProto = {
var missing = {} var missing = {}
var conflicts = {} var conflicts = {}
var exclusive = {}
// reverse dependency cache... // reverse dependency cache...
var dependants = {} var dependants = {}
@ -394,6 +399,7 @@ var FeatureSetProto = {
var deps = that[k].depends || [] var deps = that[k].depends || []
var refs = that[k].suggested || [] var refs = that[k].suggested || []
var excl = that[k].exclusive || []
deps.forEach(function(n){ deps.forEach(function(n){
// expand lst with dependencies.... // expand lst with dependencies....
@ -408,6 +414,12 @@ var FeatureSetProto = {
refs.forEach(function(n){ refs.forEach(function(n){
lst.indexOf(n) < 0 && lst.push(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)
})
} }
// sort features by priority or position... // sort features by priority or position...
@ -435,7 +447,7 @@ var FeatureSetProto = {
.filter(function(e){ return disabled.indexOf(e) < 0 }) .filter(function(e){ return disabled.indexOf(e) < 0 })
// build the sort table: [ <priority>, <index>, <elem> ] // build the sort table: [ <priority>, <index>, <elem> ]
.map(function(e, i){ return [ that[e].getPriority(), i, e ] }) .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 // NOTE: JS compares lists as strings so we have to compare
// the list manually... // the list manually...
.sort(function(a, b){ return a[0] - b[0] || a[1] - b[1] }) .sort(function(a, b){ return a[0] - b[0] || a[1] - b[1] })
@ -539,7 +551,19 @@ var FeatureSetProto = {
for(var i=0; i < lst.length; i++){ for(var i=0; i < lst.length; i++){
var k = lst[i] var k = lst[i]
var depends = that[k].depends || [] var depends = (that[k].depends || []).slice()
// replace dependencies that are exclusive tags...
Object.keys(exclusive).forEach(function(e){
var i = depends.indexOf(e)
i >= 0
&& exclusive[e].forEach(function(f){
if(lst.indexOf(f) >= 0){
console.log('EXCL->DEP', e, f)
depends[i] = f
}
})
})
// list of dependencies to move... // list of dependencies to move...
var move = [] var move = []

4
package.json
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@ -1,6 +1,6 @@
{ {
"name": "ig-features", "name": "ig-features",
"version": "2.1.0", "version": "2.2.0",
"description": "", "description": "",
"main": "features.js", "main": "features.js",
"scripts": { "scripts": {
@ -24,6 +24,6 @@
"homepage": "https://github.com/flynx/features.js#readme", "homepage": "https://github.com/flynx/features.js#readme",
"dependencies": { "dependencies": {
"ig-object": "^1.0.0", "ig-object": "^1.0.0",
"ig-actions": "^1.0.0" "ig-actions": "^1.6.0"
} }
} }