allow customizing disabled journal events + tests.

node/builder.go

@@ -3,6 +3,7 @@ package node
 import (
 	"context"
 	"errors"
+	"os"
 	"time"
 
 	logging "github.com/ipfs/go-log"
@@ -68,6 +69,10 @@ import (
 	"github.com/filecoin-project/lotus/storage/sectorblocks"
 )
 
+// EnvJournalDisabledEvents is the environment variable through which disabled
+// journal events can be customized.
+const EnvJournalDisabledEvents = "LOTUS_JOURNAL_DISABLED_EVENTS"
+
 //nolint:deadcode,varcheck
 var log = logging.Logger("builder")
 
@@ -157,7 +162,15 @@ type Settings struct {
 func defaults() []Option {
 	return []Option{
 		// global system journal.
-		Override(new(journal.DisabledEvents), journal.DefaultDisabledEvents),
+		Override(new(journal.DisabledEvents), func() journal.DisabledEvents {
+			if env, ok := os.LookupEnv(EnvJournalDisabledEvents); ok {
+				if ret, err := journal.ParseDisabledEvents(env); err == nil {
+					return ret
+				}
+			}
+			// fallback if env variable is not set, or if it failed to parse.
+			return journal.DefaultDisabledEvents
+		}),
 		Override(new(journal.Journal), modules.OpenFilesystemJournal),
 		Override(InitJournalKey, func(j journal.Journal) {
 			journal.J = j // eagerly sets the global journal through fx.Invoke.