ThreadCount Community edition

Uniform stock management for healthcare linen rooms. Licensed under the GNU AGPL v3.

lib/ops/version.ts

@@ -0,0 +1,30 @@
+import { readFileSync } from "fs";
+import path from "path";
+
+/* What is deployed, and what is running. Two different questions.
+ *
+ * `.release.json` is written by scripts/deploy.sh just before the build: the sha it pulled, the
+ * sha it replaced, and when. `NEXT_PUBLIC_RELEASE` is compiled into the bundle by that same build.
+ * Normally the two agree. When they don't — the file names a newer sha than the running bundle —
+ * a deploy pulled and built but the process was never restarted, which is the failure the deploy
+ * script's own health check exists to catch and the console should show anyway. */
+export type Version = {
+  deployed: { sha: string; from: string; at: Date } | null;
+  running: string | null;
+  node: string;
+  uptimeMin: number;
+};
+
+export function version(): Version {
+  let deployed: Version["deployed"] = null;
+  try {
+    const j = JSON.parse(readFileSync(path.join(process.cwd(), ".release.json"), "utf8")) as { sha?: string; from?: string; at?: string };
+    if (j.sha && j.at) deployed = { sha: String(j.sha), from: String(j.from || ""), at: new Date(j.at) };
+  } catch { /* no file: a box deployed before the script wrote one, or local dev */ }
+  return {
+    deployed,
+    running: process.env.NEXT_PUBLIC_RELEASE || null,
+    node: process.version,
+    uptimeMin: Math.floor(process.uptime() / 60),
+  };
+}