Extract the updater JS to its own file, add helper to find missing dependencies

modules/system/assets/js/updates/updates.js

@@ -0,0 +1,110 @@
+/*
+ * Updates class
+ *
+ * Dependences:
+ * - Waterfall plugin (waterfall.js)
+ */
+
++function ($) { "use strict";
+
+    var UpdateProcess = function () {
+
+        // Init
+        this.init()
+    }
+
+    UpdateProcess.prototype.init = function() {
+        var self = this
+        this.activeStep = null
+        this.updateSteps = null
+    }
+
+    UpdateProcess.prototype.execute = function(steps) {
+        this.updateSteps = steps
+        this.runUpdate()
+    }
+
+    UpdateProcess.prototype.runUpdate = function(fromStep) {
+        $.waterfall.apply(this, this.buildEventChain(this.updateSteps, fromStep))
+            .fail(function(reason){
+                var
+                    template = $('#executeFailed').html(),
+                    html = Mustache.to_html(template, { reason: reason })
+
+                $('#executeActivity').hide()
+                $('#executeStatus').html(html)
+            })
+    }
+
+    UpdateProcess.prototype.retryUpdate = function() {
+        $('#executeActivity').show()
+        $('#executeStatus').html('')
+
+        this.runUpdate(this.activeStep)
+    }
+
+    UpdateProcess.prototype.buildEventChain = function(steps, fromStep) {
+        var self = this,
+            eventChain = [],
+            skipStep = fromStep ? true : false
+
+        $.each(steps, function(index, step){
+
+            if (step == fromStep)
+                skipStep = false
+
+            if (skipStep)
+                return true // Continue
+
+            eventChain.push(function(){
+                var deferred = $.Deferred()
+
+                self.activeStep = step
+                self.setLoadingBar(true, step.label)
+
+                $.request('onExecuteStep', {
+                    data: step,
+                    success: function(data){
+                        setTimeout(function() { deferred.resolve() }, 600)
+
+                        if (step.code == 'completeUpdate' || step.code == 'completeInstall')
+                            this.success(data)
+                        else
+                            self.setLoadingBar(false)
+                    },
+                    error: function(data){
+                        self.setLoadingBar(false)
+                        deferred.reject(data.responseText)
+                    }
+                })
+
+                return deferred
+            })
+        })
+
+        return eventChain
+    }
+
+    UpdateProcess.prototype.setLoadingBar = function(state, message) {
+        var loadingBar = $('#executeLoadingBar'),
+            messageDiv = $('#executeMessage')
+
+        if (state)
+            loadingBar.removeClass('bar-loaded')
+        else
+            loadingBar.addClass('bar-loaded')
+
+        if (message)
+            messageDiv.text(message)
+    }
+
+    if ($.oc === undefined)
+        $.oc = {}
+
+    $.oc.updateProcess = new UpdateProcess;
+
+    // $(document).ready(function(){
+    //     new $oc.updateProcess
+    // })
+
+}(window.jQuery);

modules/system/classes/PluginManager.php

@@ -511,7 +511,32 @@ class PluginManager
     //
     // Dependencies
     //
-    
+
+    /**
+     * Scans the system plugins to locate any dependencies
+     * that are not currently installed.
+     */
+    public function findMissingDependencies()
+    {
+        $missing = [];
+
+        foreach ($this->plugins as $id => $plugin) {
+            if (!$required = $this->getDependencies($plugin)) {
+                continue;
+            }
+
+            foreach ($required as $require) {
+                if ($this->hasPlugin($require)) {
+                    continue;
+                }
+
+                $missing[] = $require;
+            }
+        }
+
+        return $missing;
+    }
+
     /**
      * Cross checks all plugins and their dependancies, if not met plugins
      * are disabled and vice versa.

modules/system/controllers/Updates.php

@@ -36,6 +36,7 @@ class Updates extends Controller
     {
         parent::__construct();
 
+        $this->addJs('/modules/system/assets/js/updates/updates.js', 'core');
         $this->addCss('/modules/system/assets/css/updates.css', 'core');
 
         BackendMenu::setContext('October.System', 'system', 'updates');

modules/system/controllers/updates/_execute.htm

@@ -49,85 +49,10 @@
 
     <script>
 
-        var updateSteps = <?= json_encode($updateSteps) ?>,
-            activeStep = null
-
         $('#executePopup').on('popupComplete', function(){
-            runUpdate()
+            $.oc.updateProcess.execute(<?= json_encode($updateSteps) ?>)
         })
 
-        function runUpdate(fromStep) {
-            $.waterfall.apply(this, buildEventChain(updateSteps, fromStep))
-                .fail(function(reason){
-                    var
-                        template = $('#executeFailed').html(),
-                        html = Mustache.to_html(template, { reason: reason })
-
-                    $('#executeActivity').hide()
-                    $('#executeStatus').html(html)
-                })
-        }
-
-        function retryUpdate() {
-            $('#executeActivity').show()
-            $('#executeStatus').html('')
-
-            runUpdate(activeStep)
-        }
-
-        function buildEventChain(steps, fromStep) {
-            var eventChain = [],
-                skipStep = fromStep ? true : false
-
-            $.each(steps, function(index, step){
-
-                if (step == fromStep)
-                    skipStep = false
-
-                if (skipStep)
-                    return true // Continue
-
-                eventChain.push(function(){
-                    var deferred = $.Deferred()
-
-                    activeStep = step
-                    setLoadingBar(true, step.label)
-
-                    $.request('onExecuteStep', {
-                        data: step,
-                        success: function(data){
-                            setTimeout(function() { deferred.resolve() }, 600)
-
-                            if (step.code == 'completeUpdate' || step.code == 'completeInstall')
-                                this.success(data)
-                            else
-                                setLoadingBar(false)
-                        },
-                        error: function(data){
-                            setLoadingBar(false)
-                            deferred.reject(data.responseText)
-                        }
-                    })
-
-                    return deferred
-                })
-            })
-
-            return eventChain
-        }
-
-        function setLoadingBar(state, message) {
-            var loadingBar = $('#executeLoadingBar'),
-                messageDiv = $('#executeMessage')
-
-            if (state)
-                loadingBar.removeClass('bar-loaded')
-            else
-                loadingBar.addClass('bar-loaded')
-
-            if (message)
-                messageDiv.text(message)
-        }
     </script>
 
 <?php else: ?>