Show a localized message if the program was killed.

* This will most likely happen by the OOM killer, thus we inform the user about the memory restriction.

app/assets/javascripts/editor/editor.js.erb

@@ -743,6 +743,13 @@ var CodeOceanEditor = {
         });
     },
 
+    showOutOfMemoryMessage: function () {
+        $.flash.info({
+            icon: ['fa', 'fa-clock-o'],
+            text: $('#editor').data('message-out-of-memory')
+        });
+    },
+
     showTimeoutMessage: function () {
         $.flash.info({
             icon: ['fa', 'fa-clock-o'],

app/assets/javascripts/editor/evaluation.js

@@ -102,6 +102,11 @@ CodeOceanEditorEvaluation = {
         })) {
             this.showTimeoutMessage();
         }
+        if (_.some(response, function (result) {
+            return result.status === 'out_of_memory';
+        })) {
+            this.showOutOfMemoryMessage();
+        }
         if (_.some(response, function (result) {
             return result.status === 'container_depleted';
         })) {

app/assets/javascripts/editor/execution.js

@@ -47,6 +47,7 @@ CodeOceanEditorWebsocket = {
     this.websocket.on('render', this.renderWebsocketOutput.bind(this));
     this.websocket.on('exit', this.handleExitCommand.bind(this));
     this.websocket.on('timeout', this.showTimeoutMessage.bind(this));
+    this.websocket.on('out_of_memory', this.showOutOfMemoryMessage.bind(this));
     this.websocket.on('status', this.showStatus.bind(this));
     this.websocket.on('hint', this.showHint.bind(this));
   },

app/assets/javascripts/shell.js

@@ -29,10 +29,14 @@ $(document).on('turbolinks:load', function () {
     };
 
     const handleResponse = function (response) {
+        // Always print stdout and stderr
+        printOutput(response);
+
+        // If an error occurred, print it too
         if (response.status === 'timeout') {
             printTimeout(response);
-        } else {
-            printOutput(response);
+        } else if (response.status === 'out_of_memory') {
+            printOutOfMemory(response);
         }
     };
 
@@ -71,12 +75,19 @@ $(document).on('turbolinks:load', function () {
     };
 
     const printTimeout = function (output) {
-        const element = $.append('<p>');
+        const element = $('<p>');
         element.addClass('text-danger');
         element.text($('#shell').data('message-timeout'));
         $('#output').append(element);
     };
 
+    const printOutOfMemory = function (output) {
+        const element = $('<p>');
+        element.addClass('text-danger');
+        element.text($('#shell').data('message-out-of-memory'));
+        $('#output').append(element);
+    };
+
     if ($('#shell').isPresent()) {
         const command = $('#command')
         command.focus();