1 files changed, 76 insertions, 0 deletions
diff --git a/client/go/script-utils/logfmt/showflags.go b/client/go/script-utils/logfmt/showflags.go
new file mode 100644
index 00000000000..b69860e0312
--- /dev/null
+++ b/client/go/script-utils/logfmt/showflags.go
@@ -0,0 +1,76 @@
+// 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 which fields to show when formatting a line
+
+type flagValueForShow struct {
+	shown   map[string]bool
+	changed bool
+}
+
+func defaultShowFlags() map[string]bool {
+	return map[string]bool{
+		"time":      true,
+		"fmttime":   true,
+		"msecs":     true,
+		"usecs":     false,
+		"host":      false,
+		"level":     true,
+		"pid":       false,
+		"service":   true,
+		"component": true,
+		"message":   true,
+	}
+}
+
+func (v *flagValueForShow) Type() string {
+	return "show flags"
+}
+
+func (v *flagValueForShow) String() string {
+	var buf strings.Builder
+	flagNames := []string{
+		"time",
+		"fmttime",
+		"msecs",
+		"usecs",
+		"host",
+		"level",
+		"pid",
+		"service",
+		"component",
+		"message",
+	}
+	for _, flag := range flagNames {
+		if v.shown[flag] {
+			buf.WriteString(" +")
+		} else {
+			buf.WriteString(" -")
+		}
+		buf.WriteString(flag)
+	}
+	return buf.String()
+}
+
+func (v *flagValueForShow) flags() map[string]bool {
+	return v.shown
+}
+
+func (v *flagValueForShow) name() string {
+	return "show"
+}
+
+func (v *flagValueForShow) unchanged() bool {
+	return !v.changed
+}
+
+func (v *flagValueForShow) Set(val string) error {
+	return applyPlusMinus(val, v)
+}