106 lines
2.5 KiB
Go
106 lines
2.5 KiB
Go
package cmd
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"log"
|
|
"log/slog"
|
|
"os"
|
|
"os/signal"
|
|
"syscall"
|
|
|
|
"git.bloy.org/mike/hasshelper/web"
|
|
"github.com/spf13/cobra"
|
|
"github.com/spf13/viper"
|
|
)
|
|
|
|
var cfgFile string
|
|
|
|
var rootCmd = &cobra.Command{
|
|
Use: "hasshelper",
|
|
Short: "Helper for Home Assistant installations.",
|
|
Run: rootCmdRun,
|
|
}
|
|
|
|
func rootCmdRun(cmd *cobra.Command, args []string) {
|
|
var logLevel slog.Level
|
|
logLevel.UnmarshalText([]byte(viper.GetString("loglevel")))
|
|
logger := slog.New(slog.NewTextHandler(os.Stdout,
|
|
&slog.HandlerOptions{Level: logLevel}))
|
|
logger.Info("HASSHelper startup", "version", viper.GetString("version"))
|
|
exitchan := make(chan bool)
|
|
signalchan := make(chan os.Signal, 1)
|
|
done := make(chan bool)
|
|
signal.Notify(signalchan, syscall.SIGINT, syscall.SIGTERM)
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
defer cancel()
|
|
web.Run(logger, exitchan, ctx)
|
|
go func() {
|
|
select {
|
|
case <-signalchan:
|
|
logger.Warn("received interrupt. Exiting")
|
|
cancel()
|
|
done <- true
|
|
case <-exitchan:
|
|
logger.Error("unexpected exit of component")
|
|
cancel()
|
|
done <- true
|
|
}
|
|
}()
|
|
<-done
|
|
}
|
|
|
|
// Execute will kick off cobra's processing of the root command
|
|
func Execute() {
|
|
if err := rootCmd.Execute(); err != nil {
|
|
fmt.Fprintln(os.Stderr, err)
|
|
os.Exit(1)
|
|
}
|
|
}
|
|
|
|
func init() {
|
|
rootCmd.PersistentFlags().StringVarP(&cfgFile, "config", "c", "",
|
|
"config file (default is $HOME/.config/hasshelper/config.toml)")
|
|
cobra.OnInitialize(initConfig)
|
|
const dirName = "hasshelper"
|
|
var userConfigDir, err = os.UserConfigDir()
|
|
if err == nil {
|
|
viper.AddConfigPath(
|
|
fmt.Sprintf("%s%c%s", userConfigDir, os.PathSeparator, dirName))
|
|
} else {
|
|
log.Println("could not locate user config dir:", err)
|
|
}
|
|
viper.AddConfigPath(fmt.Sprintf("/etc%c%s", os.PathSeparator, dirName))
|
|
viper.SetConfigName("config.toml")
|
|
viper.SetEnvPrefix("hasshelper")
|
|
}
|
|
|
|
func initConfig() {
|
|
viper.Set("version", gitVersion)
|
|
viper.SetDefault("deployment", "prod")
|
|
viper.SetDefault("loglevel", "info")
|
|
viper.AutomaticEnv()
|
|
if cfgFile != "" {
|
|
viper.SetConfigFile(cfgFile)
|
|
}
|
|
if err := viper.ReadInConfig(); err != nil {
|
|
if _, ok := err.(viper.ConfigFileNotFoundError); ok {
|
|
log.Printf("no config file found. Environment only")
|
|
} else {
|
|
log.Fatalf("error reading config file: %v\n", err)
|
|
}
|
|
}
|
|
expected_config := []string{
|
|
"deployment",
|
|
"image_dir",
|
|
"version",
|
|
"webserver_port",
|
|
}
|
|
for _, key := range expected_config {
|
|
if !viper.IsSet(key) {
|
|
fmt.Fprintf(os.Stderr, "Missing configuration value: %s\n", key)
|
|
os.Exit(1)
|
|
}
|
|
}
|
|
}
|