Adding checksum-db script

- Usage: npm run checksum-db
- Prints the total records and checksum for each table stored.

debug/checksum-db.js

@@ -0,0 +1,56 @@
+'use strict';
+
+let _I = "";
+for (let arg of process.argv)
+    if (/^-I=/.test(arg)) {
+        _I = arg.split(/=(.*)/s)[1];
+        break;
+    }
+
+const DB = require('../src/database');
+
+const ignoreTables = ['_backupCache', 'sinkShares'];
+var ignoreTables_regex = new RegExp(ignoreTables.join("|"), "i");
+function listTables() {
+    return new Promise((resolve, reject) => {
+        DB.query("SHOW TABLES").then(result => {
+            let tables = [];
+            for (let i in result)
+                for (let j in result[i])
+                    if (!ignoreTables_regex.test(result[i][j]))
+                        tables.push(result[i][j]);
+            resolve(tables);
+        }).catch(error => reject(error))
+    })
+}
+
+function checksumTable(table) {
+    return new Promise((resolve, reject) => {
+        DB.query("CHECKSUM TABLE " + table).then(result => {
+            let checksum = result[0].Checksum;
+            DB.query("SELECT COUNT(*) AS rec_count FROM " + table)
+                .then(result => resolve({ table, rec_count: result[0].rec_count, checksum }))
+                .catch(error => reject(error))
+        }).catch(error => reject(error))
+    })
+}
+
+function CheckDB() {
+    return new Promise((resolve, reject) => {
+        const config = require(`../args/config${_I}.json`);
+        DB.connect(config["sql_user"], config["sql_pwd"], config["sql_db"], config["sql_host"]).then(pool => {
+            listTables().then(tables => {
+                Promise.allSettled(tables.map(t => checksumTable(t))).then(results => {
+                    let records = results.filter(r => r.status === "fulfilled").map(r => r.value);
+                    console.table(records);
+                    let errors = results.filter(r => r.status === "rejected");
+                    if (errors.length)
+                        console.error(errors.map(r => r.reason));
+                    resolve(true);
+                }).catch(error => reject(error))
+            }).catch(error => reject(error))
+        }).catch(error => reject(error))
+    })
+}
+
+CheckDB().then(_ => process.exit(0)).catch(error => { console.error(error); process.exit(1); })

package.json

@@ -20,6 +20,7 @@
     "configure": "node setup/configure-settings.js",
     "reset-password": "node setup/reset-password.js",
     "create-schema": "node setup/create-schema.js",
+    "checksum-db": "node debug/checksum-db.js",
     "start": "node start.js"
   },
   "repository": {