server-ts: Port app* services

src/services/app_info.ts

@@ -0,0 +1,21 @@
+"use strict";
+
+import build = require('./build');
+import packageJson = require('../../package.json');
+import dataDir = require('./data_dir');
+
+const APP_DB_VERSION = 228;
+const SYNC_VERSION = 32;
+const CLIPPER_PROTOCOL_VERSION = "1.0";
+
+module.exports = {
+    appVersion: packageJson.version,
+    dbVersion: APP_DB_VERSION,
+    nodeVersion: process.version,
+    syncVersion: SYNC_VERSION,
+    buildDate: build.buildDate,
+    buildRevision: build.buildRevision,
+    dataDirectory: dataDir.TRILIUM_DATA_DIR,
+    clipperProtocolVersion: CLIPPER_PROTOCOL_VERSION,
+    utcDateTime: new Date().toISOString() // for timezone inference
+};