fix(config): fix config environment handling

closes #265
- run checkEnvironment call in config class during get/set

lib/commands/config/index.js

@@ -13,8 +13,7 @@ class ConfigCommand extends Command {
     constructor(ui, system) {
         super(ui, system);
 
-        let instance = this.system.getInstance();
-        this.config = instance.config;
+        this.instance = this.system.getInstance();
     }
 
     handleAdvancedOptions(argv) {
@@ -29,11 +28,11 @@ class ConfigCommand extends Command {
                 }
 
                 let defaultValue = isFunction(option.defaultValue) ?
-                    option.defaultValue(this.config, this.system.environment) :
+                    option.defaultValue(this.instance.config, this.system.environment) :
                     option.defaultValue;
 
                 return Promise.resolve(defaultValue).then((result) => {
-                    this.config.set(configKey, result);
+                    this.instance.config.set(configKey, result);
                 });
             }
 
@@ -47,7 +46,7 @@ class ConfigCommand extends Command {
                     }));
                 }
 
-                this.config.set(configKey, value);
+                this.instance.config.set(configKey, value);
             });
         }).then(() => {
             // Because the 'port' option can end up being different than the one supplied
@@ -59,10 +58,10 @@ class ConfigCommand extends Command {
                 // url.format won't take the new port unless 'parsedUrl.host' is undefined
                 delete parsedUrl.host;
 
-                this.config.set('url', url.format(parsedUrl));
+                this.instance.config.set('url', url.format(parsedUrl));
             }
 
-            this.config.save();
+            this.instance.config.save();
         });
     }
 
@@ -101,17 +100,19 @@ class ConfigCommand extends Command {
         }];
 
         if (key && !value) {
+            this.instance.checkEnvironment();
             // getter
-            value = this.config.get(key, null);
+            value = this.instance.config.get(key, null);
 
             if (value) {
                 this.ui.log(value);
             }
 
             return Promise.resolve();
         } else if (key) {
+            this.instance.checkEnvironment();
             // setter
-            this.config.set(key, value).save();
+            this.instance.config.set(key, value).save();
             return Promise.resolve();
         }