pkg/log: add VerboseWriter

Helper io.Writer that logs on the specified verbosity level.
Will be useful for bisection logging in syz-ci.

Update #501

1 files changed, 7 insertions, 0 deletions

diff --git a/pkg/log/log.go b/pkg/log/log.go
index 78c9ba0e0..780acb253 100644
--- a/pkg/log/log.go
+++ b/pkg/log/log.go
@@ -100,3 +100,10 @@ func Fatal(err error) {
 func Fatalf(msg string, args ...interface{}) {
 	golog.Fatalf(msg, args...)
 }
+
+type VerboseWriter int
+
+func (w VerboseWriter) Write(data []byte) (int, error) {
+	Logf(int(w), "%s", data)
+	return len(data), nil
+}