WIP: Logging

cmd/app.go

@@ -3,6 +3,7 @@ package cmd
 
 import (
 	"github.com/urfave/cli/v2"
+	"heckel.io/ntfy/log"
 	"os"
 )
 
@@ -13,6 +14,11 @@ const (
 
 var commands = make([]*cli.Command, 0)
 
+var flagsDefault = []cli.Flag{
+	&cli.BoolFlag{Name: "debug", Aliases: []string{"d"}, EnvVars: []string{"NTFY_DEBUG"}, Usage: "enable debug logging"},
+	&cli.StringFlag{Name: "log-level", Aliases: []string{"log_level"}, Value: log.InfoLevel.String(), EnvVars: []string{"NTFY_LOG_LEVEL"}, Usage: "set log level"},
+}
+
 // New creates a new CLI application
 func New() *cli.App {
 	return &cli.App{
@@ -25,5 +31,23 @@ func New() *cli.App {
 		Writer:                 os.Stdout,
 		ErrWriter:              os.Stderr,
 		Commands:               commands,
+		Flags:                  flagsDefault,
+		Before:                 initLogFunc(nil),
+	}
+}
+
+func initLogFunc(next cli.BeforeFunc) cli.BeforeFunc {
+	return func(c *cli.Context) error {
+		if c.Bool("debug") {
+			log.SetLevel(log.DebugLevel)
+		} else {
+			log.SetLevel(log.ToLevel(c.String("log-level")))
+		}
+		if next != nil {
+			if err := next(c); err != nil {
+				return err
+			}
+		}
+		return nil
 	}
 }