CI: suppress postgres vaccuuming.

``` [gw1] [ 98%] PASSED tests/test_wallet.py::test_hsmtool_dump_descriptors tests/test_wallet.py::test_fundchannel_listtransaction [gw0] [ 98%] PASSED tests/test_plugin.py::test_channel_opened_notification tests/test_wallet.py::test_hsmtool_generatehsm [gw0] [ 98%] PASSED tests/test_wallet.py::test_hsmtool_generatehsm tests/test_wallet.py::test_withdraw_nlocktime_fuzz [gw1] [ 98%] ERROR tests/test_wallet.py::test_fundchannel_listtransaction tests/test_wallet.py::test_fundchannel_listtransaction tests/test_wallet.py::test_withdraw_nlocktime_fuzz tests/test_wallet.py::test_fundchannel_listtransaction [gw0] [ 99%] ERROR tests/test_wallet.py::test_withdraw_nlocktime_fuzz tests/test_wallet.py::test_multiwithdraw_simple [gw1] [ 99%] ERROR tests/test_wallet.py::test_fundchannel_listtransaction tests/test_wallet.py::test_withdraw_nlocktime tests/test_wallet.py::test_multiwithdraw_simple tests/test_wallet.py::test_withdraw_nlocktime tests/test_wallet.py::test_multiwithdraw_simple tests/test_wallet.py::test_withdraw_nlocktime [gw0] [ 99%] ERROR tests/test_wallet.py::test_multiwithdraw_simple tests/test_wallet.py::test_repro_4258 [gw1] [ 99%] ERROR tests/test_wallet.py::test_withdraw_nlocktime ... 2021-10-12 06:36:09.203 UTC [224552] STATEMENT: SELECT version FROM version LIMIT 1 2021-10-12 06:36:09.566 UTC [224523] PANIC: could not write to file "pg_wal/xlogtemp.224523": No space left on device 2021-10-12 06:36:09.566 UTC [224523] STATEMENT: VACUUM FULL; Error vacuuming db: BEGIN command failed: PANIC: could not write to file "pg_wal/xlogtemp.224523": No space left on device server closed the connection unexpectedly This probably means the server terminated abnormally before or while processing the request. ```
ElementsProject · Oct 13, 2021 · 9c67881 · 9c67881
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diff --git a/.github/scripts/build.sh b/.github/scripts/build.sh
@@ -19,6 +19,7 @@ export TEST_NETWORK=${NETWORK:-"regtest"}
 export TIMEOUT=900
 export VALGRIND=${VALGRIND:-0}
 export FUZZING=${FUZZING:-0}
+export LIGHTNINGD_POSTGRES_NO_VACUUM=1
 
 pip3 install --user -U \
      -r requirements.lock

diff --git a/wallet/db_postgres.c b/wallet/db_postgres.c
@@ -254,6 +254,14 @@ static void db_postgres_teardown(struct db *db)
 static bool db_postgres_vacuum(struct db *db)
 {
 	PGresult *res;
+
+#if DEVELOPER
+	/* This can use a lot of diskspacem breaking CI! */
+	if (getenv("LIGHTNINGD_POSTGRES_NO_VACUUM")
+	    && streq(getenv("LIGHTNINGD_POSTGRES_NO_VACUUM"), "1"))
+		return;
+#endif
+
 	res = PQexec(db->conn, "VACUUM FULL;");
 	if (PQresultStatus(res) != PGRES_COMMAND_OK) {
 		db->error = tal_fmt(db, "BEGIN command failed: %s",