From 21f1bfbfd098a8609f7ecc4e2686ef24ab02b20f Mon Sep 17 00:00:00 2001
From: Elian Doran <contact@eliandoran.me>
Date: Sat, 3 May 2025 11:10:57 +0300
Subject: [PATCH] feat(db-compare): improve error logging when loading database

---
 apps/db-compare/src/compare.ts | 23 +++++++++++++++++++----
 1 file changed, 19 insertions(+), 4 deletions(-)

diff --git a/apps/db-compare/src/compare.ts b/apps/db-compare/src/compare.ts
index 42e8d9ecf..b92bcb0f8 100644
--- a/apps/db-compare/src/compare.ts
+++ b/apps/db-compare/src/compare.ts
@@ -6,6 +6,7 @@ import * as sqlite3 from "sqlite3";
 import sql from "./sql.js";
 
 import "colors";
+import path from "path";
 
 function printDiff(one: string, two: string) {
     const diff = jsDiff.diffChars(one, two);
@@ -67,11 +68,25 @@ function compareRows(table: string, rsLeft: Record<string, any>, rsRight: Record
 }
 
 async function main() {
-    const dbLeftPath = process.argv[2];
-    const dbRightPath = process.argv[3];
+    const dbLeftPath = path.resolve(process.argv[2]);
+    const dbRightPath = path.resolve(process.argv[3]);
 
-    const dbLeft = await sqlite.open({filename: dbLeftPath, driver: sqlite3.Database});
-    const dbRight = await sqlite.open({filename: dbRightPath, driver: sqlite3.Database});
+    let dbLeft: sqlite.Database;
+    let dbRight: sqlite.Database;
+
+    try {
+        dbLeft = await sqlite.open({filename: dbLeftPath, driver: sqlite3.Database});
+    } catch (e: any) {
+        console.error(`Could not load first database at ${dbRightPath} due to: ${e.message}`);
+        process.exit(1);
+    }
+
+    try {
+        dbRight = await sqlite.open({filename: dbRightPath, driver: sqlite3.Database});
+    } catch (e: any) {
+        console.error(`Could not load second database at ${dbRightPath} due to: ${e.message}`);
+        process.exit(2);
+    }
 
     async function compare(table: string, column: string, query: string) {
         const rsLeft = await sql.getIndexed(dbLeft, column, query);