From 7d0305aba2eb201e08fa5e0864c9c345b0be193c Mon Sep 17 00:00:00 2001
From: Luca Comellini <luca.com@gmail.com>
Date: Mon, 18 Dec 2023 20:15:47 -0800
Subject: [PATCH] Add hints for promlog

Signed-off-by: Luca Comellini <luca.com@gmail.com>
---
 promlog/flag/flag.go | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/promlog/flag/flag.go b/promlog/flag/flag.go
index c25d818d..968e43a4 100644
--- a/promlog/flag/flag.go
+++ b/promlog/flag/flag.go
@@ -37,9 +37,11 @@ const FormatFlagHelp = "Output format of log messages. One of: [logfmt, json]"
 func AddFlags(a *kingpin.Application, config *promlog.Config) {
 	config.Level = &promlog.AllowedLevel{}
 	a.Flag(LevelFlagName, LevelFlagHelp).
-		Default("info").SetValue(config.Level)
+		Default("info").HintOptions("debug", "info", "warn", "error").
+		SetValue(config.Level)
 
 	config.Format = &promlog.AllowedFormat{}
 	a.Flag(FormatFlagName, FormatFlagHelp).
-		Default("logfmt").SetValue(config.Format)
+		Default("logfmt").HintOptions("logfmt", "json").
+		SetValue(config.Format)
 }