108 lines
3.0 KiB
Go
108 lines
3.0 KiB
Go
// VulcanizeDB
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// Copyright © 2019 Vulcanize
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package cmd
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import (
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"fmt"
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"os"
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"strings"
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log "github.com/sirupsen/logrus"
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"github.com/spf13/cobra"
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"github.com/spf13/viper"
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)
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var (
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cfgFile string
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subCommand string
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logWithCommand log.Entry
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)
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var rootCmd = &cobra.Command{
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Use: "eth-statediff-service",
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PersistentPreRun: initFuncs,
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}
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func Execute() {
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log.Info("----- Starting vDB -----")
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if err := rootCmd.Execute(); err != nil {
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log.Fatal(err)
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}
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}
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func initFuncs(cmd *cobra.Command, args []string) {
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logfile := viper.GetString("logfile")
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if logfile != "" {
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file, err := os.OpenFile(logfile,
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os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
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if err == nil {
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log.Infof("Directing output to %s", logfile)
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log.SetOutput(file)
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} else {
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log.SetOutput(os.Stdout)
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log.Info("Failed to log to file, using default stdout")
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}
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} else {
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log.SetOutput(os.Stdout)
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}
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if err := logLevel(); err != nil {
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log.Fatal("Could not set log level: ", err)
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}
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}
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func logLevel() error {
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viper.BindEnv("log.level", "LOGRUS_LEVEL")
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lvl, err := log.ParseLevel(viper.GetString("log.level"))
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if err != nil {
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return err
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}
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log.SetLevel(lvl)
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if lvl > log.InfoLevel {
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log.SetReportCaller(true)
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}
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log.Info("Log level set to ", lvl.String())
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return nil
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}
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func init() {
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cobra.OnInitialize(initConfig)
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viper.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))
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viper.AutomaticEnv()
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rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file location")
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rootCmd.PersistentFlags().String("log-file", "", "file path for logging")
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rootCmd.PersistentFlags().String("log-level", log.InfoLevel.String(), "log level (trace, debug, info, warn, error, fatal, panic")
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rootCmd.PersistentFlags().Int("workers", 0, "number of concurrent workers to use")
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viper.BindPFlag("log.file", rootCmd.PersistentFlags().Lookup("log-file"))
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viper.BindPFlag("log.level", rootCmd.PersistentFlags().Lookup("log-level"))
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viper.BindPFlag("statediff.workers", rootCmd.PersistentFlags().Lookup("workers"))
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}
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func initConfig() {
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if cfgFile != "" {
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viper.SetConfigFile(cfgFile)
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if err := viper.ReadInConfig(); err == nil {
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log.Printf("Using config file: %s", viper.ConfigFileUsed())
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} else {
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log.Fatal(fmt.Sprintf("Couldn't read config file: %s", err.Error()))
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}
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} else {
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log.Warn("No config file passed with --config flag")
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}
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}
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