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root.go
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root.go
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package cli
import (
"fmt"
"os"
"runtime"
"github.com/juanfont/headscale"
"github.com/rs/zerolog"
"github.com/rs/zerolog/log"
"github.com/spf13/cobra"
"github.com/tcnksm/go-latest"
)
var cfgFile string = ""
func init() {
if len(os.Args) > 1 && os.Args[1] == "version" || os.Args[1] == "mockoidc" {
return
}
cobra.OnInitialize(initConfig)
rootCmd.PersistentFlags().
StringVarP(&cfgFile, "config", "c", "", "config file (default is /etc/headscale/config.yaml)")
rootCmd.PersistentFlags().
StringP("output", "o", "", "Output format. Empty for human-readable, 'json', 'json-line' or 'yaml'")
rootCmd.PersistentFlags().
Bool("force", false, "Disable prompts and forces the execution")
}
func initConfig() {
if cfgFile == "" {
cfgFile = os.Getenv("HEADSCALE_CONFIG")
}
if cfgFile != "" {
err := headscale.LoadConfig(cfgFile, true)
if err != nil {
log.Fatal().Caller().Err(err).Msgf("Error loading config file %s", cfgFile)
}
} else {
err := headscale.LoadConfig("", false)
if err != nil {
log.Fatal().Caller().Err(err).Msgf("Error loading config")
}
}
cfg, err := headscale.GetHeadscaleConfig()
if err != nil {
log.Fatal().Caller().Err(err)
}
machineOutput := HasMachineOutputFlag()
zerolog.SetGlobalLevel(cfg.Log.Level)
// If the user has requested a "machine" readable format,
// then disable login so the output remains valid.
if machineOutput {
zerolog.SetGlobalLevel(zerolog.Disabled)
}
if cfg.Log.Format == headscale.JSONLogFormat {
log.Logger = log.Output(os.Stdout)
}
if !cfg.DisableUpdateCheck && !machineOutput {
if (runtime.GOOS == "linux" || runtime.GOOS == "darwin") &&
Version != "dev" {
githubTag := &latest.GithubTag{
Owner: "juanfont",
Repository: "headscale",
}
res, err := latest.Check(githubTag, Version)
if err == nil && res.Outdated {
//nolint
fmt.Printf(
"An updated version of Headscale has been found (%s vs. your current %s). Check it out https://github.com/juanfont/headscale/releases\n",
res.Current,
Version,
)
}
}
}
}
var rootCmd = &cobra.Command{
Use: "headscale",
Short: "headscale - a Tailscale control server",
Long: `
headscale is an open source implementation of the Tailscale control server
https://github.com/juanfont/headscale`,
}
func Execute() {
if err := rootCmd.Execute(); err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
}