add a LogInfo expr helper (#2179)

pkg/exprhelpers/expr_lib.go

@@ -377,6 +377,13 @@ var exprFuncs = []exprCustomFunc{
 			new(func(string, string) bool),
 		},
 	},
+	{
+		name:     "LogInfo",
+		function: LogInfo,
+		signature: []interface{}{
+			new(func(string, ...interface{}) bool),
+		},
+	},
 }
 
 //go 1.20 "CutPrefix":              strings.CutPrefix,

pkg/exprhelpers/strings.go

@@ -1,6 +1,10 @@
 package exprhelpers
 
-import "strings"
+import (
+	"strings"
+
+	log "github.com/sirupsen/logrus"
+)
 
 //Wrappers for stdlib strings function exposed in expr
 
@@ -67,3 +71,8 @@ func TrimSpace(params ...any) (any, error) {
 func TrimSuffix(params ...any) (any, error) {
 	return strings.TrimSuffix(params[0].(string), params[1].(string)), nil
 }
+
+func LogInfo(params ...any) (any, error) {
+	log.Infof(params[0].(string), params[1:]...)
+	return true, nil
+}