core&judge: probe compiler versions

packages/hydrooj/src/handler/status.ts

@@ -25,11 +25,41 @@ async function getStatus() {
 class StatusHandler extends Handler {
     async get() {
         const stats = await getStatus();
+        const compilers = {};
+        const warn = {};
+        const result: Array<{ key: string[], message: string }> = [];
+        // For each language, select the most common compiler message version,
+        // then merge languages with the same message.
         for (const stat of stats) {
-            if (!stat.battery.hasBattery) stat.battery = 'No battery';
+            if (!stat.battery?.hasBattery) stat.battery = 'No battery';
             else stat.battery = `${stat.battery.type} ${stat.battery.model} ${stat.battery.percent}%${stat.battery.isCharging ? ' Charging' : ''}`;
+            if (stat.compilers) {
+                for (const key in stat.compilers) {
+                    if (!compilers[key]) compilers[key] ||= [];
+                    const related = compilers[key].find((i) => i.message === stat.compilers[key]);
+                    if (related) related.related.push(stat._id);
+                    else {
+                        compilers[key].push({
+                            related: [stat._id],
+                            message: stat.compilers[key],
+                        });
+                    }
+                }
+            }
         }
-        this.response.body = { stats };
+        for (const key in compilers) {
+            compilers[key].sort((a, b) => b.related.length - a.related.length);
+            const message = compilers[key][0].message;
+            for (let i = 1; i < compilers[key].length; i++) {
+                for (const id of compilers[key][i].related) {
+                    warn[id] = true;
+                }
+            }
+            const t = result.find((i) => i.message === message);
+            if (t) t.key.push(key);
+            else result.push({ key: [key], message });
+        }
+        this.response.body = { stats, compilers: result };
         this.response.template = 'status.html';
     }
 }