scripts/db-check.mjs

@@ -0,0 +1,68 @@
+/**
+ * 数据库连通性探测（node-postgres 版）。
+ *
+ * 用法：node scripts/db-check.mjs
+ *
+ * 与之前的版本不同，这里直接用 pg 驱动走 TCP 协议，
+ * 因此能连接本地/自建的普通 Postgres。
+ */
+
+import pg from "pg";
+import { config } from "dotenv";
+
+config({ path: ".env.local" });
+
+const url = process.env.DATABASE_URL;
+if (!url) {
+	console.error("缺少 DATABASE_URL（检查 .env.local）");
+	process.exit(1);
+}
+
+const masked = url.replace(/:\/\/([^:]+):[^@]+@/, "://$1:***@");
+console.log(`连接目标: ${masked}\n`);
+
+const parsed = new URL(url);
+const sslmode = parsed.searchParams.get("sslmode");
+const isLocal = /^(localhost|127\.0\.0\.1|::1)$/.test(parsed.hostname);
+const useSsl = sslmode === "disable" ? false : sslmode ? true : !isLocal;
+
+console.log(`主机: ${parsed.hostname}:${parsed.port || 5432}`);
+console.log(`sslmode: ${sslmode ?? "(未指定)"}  →  启用 SSL: ${useSsl}\n`);
+
+const client = new pg.Client({
+	connectionString: url,
+	ssl: useSsl ? { rejectUnauthorized: false } : undefined,
+});
+
+try {
+	await client.connect();
+	const info = await client.query(
+		"select version() as version, current_database() as db, current_user as usr",
+	);
+	console.log("✓ 连接成功");
+	console.log(`  数据库: ${info.rows[0].db}`);
+	console.log(`  用户:   ${info.rows[0].usr}`);
+	console.log(`  版本:   ${String(info.rows[0].version).split(",")[0]}\n`);
+
+	const tables = await client.query(
+		`select table_name from information_schema.tables
+		 where table_schema = 'public' order by table_name`,
+	);
+
+	console.log(`public schema 下的表 (${tables.rowCount}):`);
+	if (tables.rowCount === 0) {
+		console.log("  （空 —— 尚未执行迁移）");
+	} else {
+		for (const row of tables.rows) {
+			const count = await client.query(
+				`select count(*)::int as n from "${row.table_name}"`,
+			);
+			console.log(`  - ${row.table_name} (${count.rows[0].n} 行)`);
+		}
+	}
+} catch (error) {
+	console.error("✗ 连接失败:", error.message);
+	process.exitCode = 1;
+} finally {
+	await client.end().catch(() => {});
+}