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juanfont.headscale/cmd/headscale/headscale.go
Kristoffer Dalby 73a00c89ff Try to detect color support, make color configurable
This commit tries to detect if users can render colors in their terminal
and only enables color logs if that is true.

It also adds no-color.org's NO_COLOR env var support to allow it to be
disabled.
2021-08-06 07:29:57 +01:00

66 lines
1.4 KiB
Go

package main
import (
"os"
"time"
"github.com/efekarakus/termcolor"
"github.com/juanfont/headscale/cmd/headscale/cli"
"github.com/rs/zerolog"
"github.com/rs/zerolog/log"
"github.com/spf13/viper"
)
func main() {
var colors bool
switch l := termcolor.SupportLevel(os.Stderr); l {
case termcolor.Level16M:
colors = true
case termcolor.Level256:
colors = true
case termcolor.LevelBasic:
colors = true
default:
// no color, return text as is.
log.Trace().Msg("Colors are not supported, disabling")
colors = false
}
// Adhere to no-color.org manifesto of allowing users to
// turn off color in cli/services
if _, noColorIsSet := os.LookupEnv("NO_COLOR"); noColorIsSet {
log.Trace().Msg("NO_COLOR is set, disabling colors")
colors = false
}
zerolog.TimeFieldFormat = zerolog.TimeFormatUnix
log.Logger = log.Output(zerolog.ConsoleWriter{
Out: os.Stdout,
TimeFormat: time.RFC3339,
NoColor: !colors,
})
err := cli.LoadConfig("")
if err != nil {
log.Fatal().Err(err)
}
logLevel := viper.GetString("log_level")
switch logLevel {
case "trace":
zerolog.SetGlobalLevel(zerolog.TraceLevel)
case "debug":
zerolog.SetGlobalLevel(zerolog.DebugLevel)
case "info":
zerolog.SetGlobalLevel(zerolog.InfoLevel)
case "warn":
zerolog.SetGlobalLevel(zerolog.WarnLevel)
case "error":
zerolog.SetGlobalLevel(zerolog.ErrorLevel)
default:
zerolog.SetGlobalLevel(zerolog.DebugLevel)
}
cli.Execute()
}