Added adapter-manager service

no-issue

This services handles the registration and retrieval of adapters,
it normalises the config to look like:

{
    [adapterType]: {
        active: adapterName,
        [adapterName]: adapterConfig
    }
}

core/server/config/overrides.json

@@ -8,6 +8,7 @@
         "defaultViews": "core/server/views/",
         "defaultSettings": "core/frontend/services/settings/",
         "internalAppPath": "core/frontend/apps/",
+        "internalAdaptersPath": "core/server/adapters/",
         "internalStoragePath": "core/server/adapters/storage/",
         "internalSchedulingPath": "core/server/adapters/scheduling/",
         "migrationPath": "core/server/data/migrations",

core/server/config/utils.js

@@ -53,6 +53,8 @@ exports.getContentPath = function getContentPath(type) {
         return path.join(this.get('paths:contentPath'), 'images/');
     case 'themes':
         return path.join(this.get('paths:contentPath'), 'themes/');
+    case 'adapters':
+        return path.join(this.get('paths:contentPath'), 'adapters/');
     case 'storage':
         return path.join(this.get('paths:contentPath'), 'adapters', 'storage/');
     case 'scheduling':

core/server/services/adapter-manager/config.js

@@ -0,0 +1,28 @@
+/**
+ * {
+ *   [adapterType]: {
+ *     active: [adapterName],
+ *     [adapterName]: {}
+ *   }
+ * }
+ */
+module.exports = function getAdapterServiceConfig(config) {
+    const adapterServiceConfig = config.get('adapters');
+
+    if (!adapterServiceConfig.storage) {
+        adapterServiceConfig.storage = config.get('storage');
+    }
+
+    if (!adapterServiceConfig.scheduling) {
+        const schedulingConfig = config.get('scheduling');
+        const activeSchedulingAdapter = schedulingConfig.active;
+        adapterServiceConfig.scheduling = {
+            active: activeSchedulingAdapter,
+            [activeSchedulingAdapter]: {
+                schedulerUrl: schedulingConfig.schedulerUrl
+            }
+        };
+    }
+
+    return adapterServiceConfig;
+};

core/server/services/adapter-manager/index.js

@@ -0,0 +1,27 @@
+const AdapterManager = require('@tryghost/adapter-manager');
+const getAdapterServiceConfig = require('./config');
+const config = require('../../config');
+
+const adapterManager = new AdapterManager({
+    loadAdapterFromPath: require,
+    pathsToAdapters: [
+        '', // A blank path will cause us to check node_modules for the adapter
+        config.getContentPath('adapters'),
+        config.get('paths').internalAdaptersPath
+    ]
+});
+
+adapterManager.registerAdapter('storage', require('ghost-storage-base'));
+adapterManager.registerAdapter('scheduling', require('../../adapters/scheduling/SchedulingBase'));
+
+module.exports = {
+    getAdapter(adapterType) {
+        const adapterServiceConfig = getAdapterServiceConfig(config);
+
+        const adapterSettings = adapterServiceConfig[adapterType];
+        const activeAdapter = adapterSettings.active;
+        const activeAdapterConfig = adapterSettings[activeAdapter];
+
+        return adapterManager.getAdapter(adapterType, activeAdapter, activeAdapterConfig);
+    }
+};

package.json

@@ -41,6 +41,7 @@
   "dependencies": {
     "@nexes/nql": "0.3.0",
     "@sentry/node": "5.15.4",
+    "@tryghost/adapter-manager": "^0.1.0",
     "@tryghost/errors": "0.1.1",
     "@tryghost/helpers": "1.1.25",
     "@tryghost/image-transform": "0.2.0",

yarn.lock

@@ -301,6 +301,13 @@
   dependencies:
     defer-to-connect "^2.0.0"
 
+"@tryghost/adapter-manager@^0.1.0":
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/@tryghost/adapter-manager/-/adapter-manager-0.1.0.tgz#b95178b1d2f89de8b6a243ee312de61237c6a973"
+  integrity sha512-Z5Pnhd/b/EBsl6mCJdwmdVEESWnurgD/GAVma0g8GMuUECg0NCynyVJtvszKFny9484OagWzrpTUi7F5l4jp3Q==
+  dependencies:
+    "@tryghost/errors" "^0.1.1"
+
 "@tryghost/errors@0.1.1", "@tryghost/errors@^0.1.1":
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/@tryghost/errors/-/errors-0.1.1.tgz#c140f8558fc54cf69ac7e7ea719a189c763fea04"