Adding runtimeRestarter

Fixes #223

+ Adding prom-client dependency, because it was removed from
@eng-automation/js (rightfully so)

package.json

@@ -48,7 +48,7 @@
     "pre-commit": "yarn lint-staged"
   },
   "dependencies": {
-    "@eng-automation/js": "^1.0.0",
+    "@eng-automation/js": "^1.0.3",
     "@polkadot/api": "^10.10.1",
     "@polkadot/keyring": "^12.5.1",
     "@polkadot/util": "^12.5.1",
@@ -65,6 +65,7 @@
     "express": "4.17.3",
     "matrix-js-sdk": "^26.1.0",
     "pg": "^8.11.2",
+    "prom-client": "^14.2.0",
     "reflect-metadata": "^0.1.13",
     "request": "^2.88.2",
     "typeorm": "^0.3.17"

src/start.ts

@@ -1,8 +1,12 @@
 import "reflect-metadata";
 
+import { runtimeRestarter } from "@eng-automation/js";
+
 import { startBot } from "./bot";
 import { AppDataSource } from "./db/dataSource";
 import polkadotActions from "./dripper/polkadot/PolkadotActions";
+import polkadotApi from "./dripper/polkadot/polkadotApi";
+import { logger } from "src/logger";
 import { startServer } from "./server";
 
 (async () => {
@@ -11,6 +15,19 @@ import { startServer } from "./server";
   // Thus, listening to port on the server side can be treated as "ready" signal.
   await startBot();
   await polkadotActions.isReady;
+  void runtimeRestarter({
+    metadata: {
+      getMetadataVersion: async () => {
+        return (await polkadotApi.rpc.state.getMetadata()).version.toString();
+      },
+      onMetadataChange: () => process.exit(0),
+    },
+    runtime: {
+      getRuntimeVersionHash: async () => (await polkadotApi.rpc.state.getRuntimeVersion()).hash.toString(),
+      onRuntimeChange: () => process.exit(0),
+    },
+    log: logger.info,
+  });
   startServer();
 })().catch((e) => {
   console.error("Start failed:", e);

yarn.lock

@@ -571,10 +571,10 @@
     prettier-plugin-svelte "^3.0.3"
     svelte "^3.54.0"
 
-"@eng-automation/js@^1.0.0":
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/@eng-automation/js/-/js-1.0.0.tgz#f6bd5e36f1ab047cdf185be913283788432003b0"
-  integrity sha512-LHRJYdug9zhCHGUBJc4KdPIlAKLFMC4sTgIT2fqrM2+v61e/y51fijrxRQ86gzcNG+ODrYJf0+9pCH5bNbaFTA==
+"@eng-automation/js@^1.0.3":
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/@eng-automation/js/-/js-1.0.3.tgz#57344622d389157734866ca21a6fabd7f33db665"
+  integrity sha512-AQITUg8uuZ2boB7I4yvjj5jluspNGI81xYl7GlYLBlaHRsehpffopZDA3W/4Bg2JDxQzczd1np20xOFkFo90xA==
   dependencies:
     async-mutex "^0.3.2"
     commander "^9.3.0"
@@ -583,7 +583,6 @@
     joi-to-typescript "^4.0.5"
     lodash "^4.17.21"
     node-fetch "^2.6.7"
-    prom-client "^14.2.0"
 
 "@eslint-community/eslint-utils@^4.2.0":
   version "4.4.0"