Added check-env script.

package.json

@@ -11,7 +11,7 @@
   },
   "scripts": {
     "dev": "next dev -p 3000",
-    "build": "npm-run-all build-db check-db build-tracker build-geo build-app",
+    "build": "npm-run-all check-env build-db check-db build-tracker build-geo build-app",
     "start": "next start",
     "build-docker": "npm-run-all build-db build-tracker build-geo build-app",
     "start-docker": "npm-run-all check-db update-tracker start-server",
@@ -27,6 +27,7 @@
     "update-tracker": "node scripts/update-tracker.js",
     "update-db": "prisma migrate deploy",
     "check-db": "node scripts/check-db.js",
+    "check-env": "node scripts/check-env.js",
     "copy-db-files": "node scripts/copy-db-files.js",
     "extract-messages": "formatjs extract \"{pages,components}/**/*.js\" --out-file build/messages.json",
     "merge-messages": "node scripts/merge-messages.js",

scripts/check-env.js

@@ -0,0 +1,32 @@
+/* eslint-disable no-console */
+require('dotenv').config();
+
+function checkMissing(vars) {
+  const missing = vars.reduce((arr, key) => {
+    if (!process.env[key]) {
+      arr.push(key);
+    }
+  }, []);
+
+  if (missing.length) {
+    console.log(`The following environment variables are not defined:`);
+    for (const item of missing) {
+      console.log(' - ', item);
+    }
+    process.exit(1);
+  }
+}
+
+checkMissing(['DATABASE_URL']);
+
+if (process.env.CLICKHOUSE_URL) {
+  checkMissing(['CA_CERT', 'CLIENT_CERT', 'CLIENT_KEY', 'KAFKA_BROKER', 'KAFKA_URL', 'REDIS_URL']);
+}
+
+if (process.env.CLOUD_MODE) {
+  checkMissing(['CLOUD_URL']);
+}
+
+if (process.env.ENABLE_BLOCKER) {
+  checkMissing(['REDIS_URL']);
+}