upgrade logger, log matches upgrade outcome

client/db/bolt/upgrades.go

@@ -8,6 +8,7 @@ import (
 	"path/filepath"
 
 	dexdb "decred.org/dcrdex/client/db"
+	"decred.org/dcrdex/dex"
 	"decred.org/dcrdex/dex/encode"
 	"decred.org/dcrdex/dex/order"
 	"go.etcd.io/bbolt"
@@ -57,6 +58,8 @@ func setDBVersion(tx *bbolt.Tx, newVersion uint32) error {
 	return bucket.Put(versionKey, encode.Uint32Bytes(newVersion))
 }
 
+var upgradeLog = dex.Disabled
+
 // upgradeDB checks whether any upgrades are necessary before the database is
 // ready for application usage.  If any are, they are performed.
 func (db *BoltDB) upgradeDB() error {
@@ -77,6 +80,7 @@ func (db *BoltDB) upgradeDB() error {
 	}
 
 	db.log.Infof("Upgrading database from version %d to %d", version, DBVersion)
+	upgradeLog = db.log
 
 	// Backup the current version's DB file before processing the upgrades to
 	// DBVersion. Note that any intermediate versions are not stored.
@@ -307,6 +311,12 @@ func v6Upgrade(dbtx *bbolt.Tx) error {
 		return err
 	}
 
+	var nActive, nArchived int
+
+	defer func() {
+		upgradeLog.Infof("%d active matches moved, %d archived matches unmoved", nActive, nArchived)
+	}()
+
 	archivedMatchesBkt := dbtx.Bucket(oldMatchesBucket)
 	activeMatchesBkt := dbtx.Bucket(newActiveMatchesBucket)
 
@@ -333,9 +343,15 @@ func v6Upgrade(dbtx *bbolt.Tx) error {
 		}
 		// If match is active, move to activeMatchesBucket.
 		if !dexdb.MatchIsActive(match, proof) {
+			nArchived++
 			return nil
 		}
 
+		upgradeLog.Infof("Moving match %v (%v, revoked = %v, refunded = %v, sigs (init/redeem): %v, %v) to active bucket.",
+			match, match.Status, proof.IsRevoked(), len(proof.RefundCoin) > 0,
+			len(proof.Auth.InitSig) > 0, len(proof.Auth.RedeemSig) > 0)
+		nActive++
+
 		activeMBkt, err := activeMatchesBkt.CreateBucket(k)
 		if err != nil {
 			return err

client/db/bolt/upgrades_test.go

@@ -38,6 +38,7 @@ var dbUpgradeTests = [...]struct {
 }
 
 func TestUpgrades(t *testing.T) {
+	upgradeLog = tLogger
 	t.Run("group", func(t *testing.T) {
 		for _, tc := range dbUpgradeTests {
 			tc := tc // capture range variable