Made default settings file location configurable

refs https://github.com/TryGhost/Toolbox/issues/214

- The values configuration for the settings table need to become configurable to be able to run our test environment with a pre-defined set of configurations (e.g Stripe-related values).
- This change makes it possible to define the default settings file location (currently a JSON)
- A new key is now exposed through the "paths.defaultSettings" key in settings, which can be overloaded for the needs of the environment

core/server/data/schema/default-settings/index.js

@@ -0,0 +1,6 @@
+const config = require('../../../../shared/config');
+
+const defaultSettingsPath = config.get('paths').defaultSettings;
+const defaultSettings = require(defaultSettingsPath);
+
+module.exports = defaultSettings;

core/shared/config/defaults.json

@@ -17,6 +17,7 @@
     "paths": {
         "contentPath": "content/",
         "fixtures": "core/server/data/schema/fixtures/fixtures",
+        "defaultSettings": "core/server/data/schema/default-settings/default-settings",
         "assetSrc": "core/frontend/src"
     },
     "adapters": {

test/unit/server/data/exporter/index.test.js

@@ -191,7 +191,7 @@ describe('Exporter', function () {
             const {
                 SETTING_KEYS_BLOCKLIST
             } = require('../../../../../core/server/data/exporter/table-lists.js');
-            const defaultSettings = require('../../../../../core/server/data/schema/default-settings.json');
+            const defaultSettings = require('../../../../../core/server/data/schema/default-settings/default-settings.json');
 
             const totalKeysLength = Object.keys(defaultSettings).reduce((acc, curr, index) => {
                 return acc + Object.keys(defaultSettings[curr]).length;

test/unit/server/data/schema/integrity.test.js

@@ -7,7 +7,7 @@ const path = require('path');
 const {config} = require('../../../../utils/configUtils');
 const schema = require('../../../../../core/server/data/schema/schema');
 const fixtures = require('../../../../../core/server/data/schema/fixtures/fixtures.json');
-const defaultSettings = require('../../../../../core/server/data/schema/default-settings.json');
+const defaultSettings = require('../../../../../core/server/data/schema/default-settings/default-settings.json');
 
 // Routes are yaml so we can require the file directly
 const routeSettings = require('../../../../../core/server/services/route-settings');