Fix migration package name mismatch

db/migrations/20210821212604_add_mediafile_channels.go

@@ -0,0 +1,31 @@
+package migrations
+
+import (
+	"context"
+	"database/sql"
+
+	"github.com/pressly/goose/v3"
+)
+
+func init() {
+	goose.AddMigrationContext(upAddMediafileChannels, downAddMediafileChannels)
+}
+
+func upAddMediafileChannels(_ context.Context, tx *sql.Tx) error {
+	_, err := tx.Exec(`
+alter table media_file
+    add channels integer;
+
+create index if not exists media_file_channels
+	on media_file (channels);
+`)
+	if err != nil {
+		return err
+	}
+	notice(tx, "A full rescan needs to be performed to import more tags")
+	return forceFullRescan(tx)
+}
+
+func downAddMediafileChannels(_ context.Context, tx *sql.Tx) error {
+	return nil
+}