db: Wire in the logs into the database so we can give feedback

wallet/db.c

@@ -772,7 +772,7 @@ static int db_get_version(struct db *db)
 /**
  * db_migrate - Apply all remaining migrations from the current version
  */
-static void db_migrate(struct lightningd *ld, struct db *db, struct log *log)
+static void db_migrate(struct lightningd *ld, struct db *db)
 {
 	/* Attempt to read the version from the database */
 	int current, orig, available;
@@ -784,12 +784,12 @@ static void db_migrate(struct lightningd *ld, struct db *db, struct log *log)
 	available = ARRAY_SIZE(dbmigrations) - 1;
 
 	if (current == -1)
-		log_info(log, "Creating database");
+		log_info(db->log, "Creating database");
 	else if (available < current)
 		db_fatal("Refusing to migrate down from version %u to %u",
 			 current, available);
 	else if (current != available)
-		log_info(log, "Updating database from version %u to %u",
+		log_info(db->log, "Updating database from version %u to %u",
 			 current, available);
 
 	while (current < available) {
@@ -826,7 +826,8 @@ static void db_migrate(struct lightningd *ld, struct db *db, struct log *log)
 struct db *db_setup(const tal_t *ctx, struct lightningd *ld, struct log *log)
 {
 	struct db *db = db_open(ctx, ld->wallet_dsn);
-	db_migrate(ld, db, log);
+	db->log = log;
+	db_migrate(ld, db);
 	return db;
 }
 

wallet/db_common.h

@@ -28,6 +28,8 @@ struct db {
 	/* List of statements that have been created but not executed yet. */
 	struct list_head pending_statements;
 	char *error;
+
+	struct log *log;
 };
 
 struct db_query {

wallet/test/run-db.c

@@ -69,7 +69,7 @@ static bool test_empty_db_migrate(struct lightningd *ld)
 	db_begin_transaction(db);
 	CHECK(db_get_version(db) == -1);
 	db_commit_transaction(db);
-	db_migrate(ld, db, NULL);
+	db_migrate(ld, db);
 	db_begin_transaction(db);
 	CHECK(db_get_version(db) == ARRAY_SIZE(dbmigrations) - 1);
 	db_commit_transaction(db);
@@ -113,7 +113,7 @@ static bool test_vars(struct lightningd *ld)
 	struct db *db = create_test_db();
 	char *varname = "testvar";
 	CHECK(db);
-	db_migrate(ld, db, NULL);
+	db_migrate(ld, db);
 
 	db_begin_transaction(db);
 	/* Check default behavior */

wallet/test/run-wallet.c

@@ -772,7 +772,7 @@ static struct wallet *create_test_wallet(struct lightningd *ld, const tal_t *ctx
 				  w->bip32_base) == WALLY_OK);
 
 	CHECK_MSG(w->db, "Failed opening the db");
-	db_migrate(ld, w->db, w->log);
+	db_migrate(ld, w->db);
 	CHECK_MSG(!wallet_err, "DB migration failed");
 	w->max_channel_dbid = 0;