1 files changed, 72 insertions, 0 deletions
diff --git a/client/go/script-utils/logfmt/levelflags.go b/client/go/script-utils/logfmt/levelflags.go
new file mode 100644
index 00000000000..4e6c1284753
--- /dev/null
+++ b/client/go/script-utils/logfmt/levelflags.go
@@ -0,0 +1,72 @@
+// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+// vespa logfmt command
+// Author: arnej
+
+package logfmt
+
+import (
+	"strings"
+)
+
+// handle CLI flags for log level filtering
+
+type flagValueForLevel struct {
+	levels  map[string]bool
+	changed bool
+}
+
+func defaultLevelFlags() map[string]bool {
+	return map[string]bool{
+		"fatal":   true,
+		"error":   true,
+		"warning": true,
+		"info":    true,
+		"config":  false,
+		"event":   false,
+		"debug":   false,
+		"spam":    false,
+	}
+}
+
+func (v *flagValueForLevel) Type() string {
+	return "level flags"
+}
+
+func (v *flagValueForLevel) String() string {
+	var buf strings.Builder
+	flagNames := []string{
+		"fatal",
+		"error",
+		"warning",
+		"info",
+		"config",
+		"event",
+		"debug",
+		"spam",
+	}
+	for _, flag := range flagNames {
+		if v.levels[flag] {
+			buf.WriteString(" +")
+		} else {
+			buf.WriteString(" -")
+		}
+		buf.WriteString(flag)
+	}
+	return buf.String()
+}
+
+func (v *flagValueForLevel) flags() map[string]bool {
+	return v.levels
+}
+
+func (v *flagValueForLevel) name() string {
+	return "level"
+}
+
+func (v *flagValueForLevel) unchanged() bool {
+	return !v.changed
+}
+
+func (v *flagValueForLevel) Set(val string) error {
+	return applyPlusMinus(val, v)
+}