make log file a CLI param; default to stdout if none is provided

This commit is contained in:
Ian Norden 2020-03-23 11:57:36 -05:00
parent 1c208e5946
commit 7bd7cd3aab
2 changed files with 15 additions and 6 deletions

View File

@ -110,6 +110,7 @@ func init() {
viper.AutomaticEnv()
rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file location")
rootCmd.PersistentFlags().String("logfile", "", "file path for logging")
rootCmd.PersistentFlags().String("database-name", "vulcanize_public", "database name")
rootCmd.PersistentFlags().Int("database-port", 5432, "database port")
rootCmd.PersistentFlags().String("database-hostname", "localhost", "database hostname")
@ -122,6 +123,7 @@ func init() {
rootCmd.PersistentFlags().String("exporter-name", "exporter", "name of exporter plugin")
rootCmd.PersistentFlags().String("log-level", log.InfoLevel.String(), "Log level (trace, debug, info, warn, error, fatal, panic")
viper.BindPFlag("logfile", rootCmd.PersistentFlags().Lookup("logfile"))
viper.BindPFlag("database.name", rootCmd.PersistentFlags().Lookup("database-name"))
viper.BindPFlag("database.port", rootCmd.PersistentFlags().Lookup("database-port"))
viper.BindPFlag("database.hostname", rootCmd.PersistentFlags().Lookup("database-hostname"))

19
main.go
View File

@ -3,6 +3,8 @@ package main
import (
"os"
"github.com/spf13/viper"
"github.com/vulcanize/vulcanizedb/cmd"
"github.com/sirupsen/logrus"
@ -12,13 +14,18 @@ func main() {
logrus.SetFormatter(&logrus.TextFormatter{
FullTimestamp: true,
})
file, err := os.OpenFile("vulcanizedb.log",
os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
if err == nil {
logrus.SetOutput(file)
logfile := viper.GetString("logfile")
if logfile != "" {
file, err := os.OpenFile(logfile,
os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
if err == nil {
logrus.SetOutput(file)
} else {
logrus.SetOutput(os.Stdout)
logrus.Info("Failed to log to file, using default stdout")
}
} else {
logrus.Info("Failed to log to file, using default stderr")
logrus.SetOutput(os.Stdout)
}
cmd.Execute()
}