more information if migration failed, and pretty

packages/taler-wallet-core/src/db.ts

@@ -21,6 +21,7 @@ import {
   Event,
   IDBDatabase,
   IDBFactory,
+  IDBObjectStore,
   IDBTransaction,
 } from "@gnu-taler/idb-bridge";
 import {
@@ -2477,20 +2478,35 @@ function upgradeFromStoreMap(
     if (storeAddedVersion <= oldVersion) {
       continue;
     }
-    const s = db.createObjectStore(swi.storeName, {
+    let s: IDBObjectStore;
-      autoIncrement: storeDesc.autoIncrement,
+    try {
-      keyPath: storeDesc.keyPath,
+      s = db.createObjectStore(swi.storeName, {
-    });
+        autoIncrement: storeDesc.autoIncrement,
+        keyPath: storeDesc.keyPath,
+      });
+    } catch (e) {
+      const moreInfo = e instanceof Error ? ` Reason: ${e.message}` : "";
+      throw Error(
+        `Migration failed. Could not create store ${swi.storeName}.${moreInfo}`,
+      );
+    }
     for (const indexName in swi.indexMap as any) {
       const indexDesc: IndexDescriptor = swi.indexMap[indexName];
       const indexAddedVersion = indexDesc.versionAdded ?? 0;
       if (indexAddedVersion <= oldVersion) {
         continue;
       }
-      s.createIndex(indexDesc.name, indexDesc.keyPath, {
+      try {
-        multiEntry: indexDesc.multiEntry,
+        s.createIndex(indexDesc.name, indexDesc.keyPath, {
-        unique: indexDesc.unique,
+          multiEntry: indexDesc.multiEntry,
-      });
+          unique: indexDesc.unique,
+        });
+      } catch (e) {
+        const moreInfo = e instanceof Error ? ` Reason: ${e.message}` : "";
+        throw Error(
+          `Migration failed. Could not create index ${indexDesc.name}/${indexDesc.keyPath}.${moreInfo}`,
+        );
+      }
     }
   }
 }

packages/taler-wallet-core/src/operations/transactions.ts

@@ -734,7 +734,6 @@ async function buildTransactionForPurchase(
   checkDbInvariant(!!timestamp);
   checkDbInvariant(!!purchaseRecord.payInfo);
 
-
   let status: ExtendedStatus;
   switch (purchaseRecord.purchaseStatus) {
     case PurchaseStatus.AbortingWithRefund: