valasek/timesheet

// Copyright © 2018-2020 Stanislav Valasek <valasek@gmail.com>

package cmd

import (
    "fmt"
    "os"
    "path/filepath"

    "github.com/valasek/timesheet/server/logger"
    "github.com/valasek/timesheet/server/version"

    nested "github.com/antonfisher/nested-logrus-formatter"
    "github.com/orandin/lumberjackrus"
    "github.com/sirupsen/logrus"
    "github.com/spf13/cobra"
    "github.com/spf13/viper"
)

var cfgFile string

// rootCmd represents the base command when called without any subcommands
var rootCmd = &cobra.Command{
    Use:     "timesheet",
    Version: version.Version,
    Short:   "Web based timesheet application with DB persistence",
    Long: `Web based timesheet application with DB persistence.
    
Application reads DB and server configuration from timesheet.toml, loads default data if DB is empty and launch web GUI.`,
    // Uncomment the following line if your bare application
    // has an action associated with it:
    //    Run: func(cmd *cobra.Command, args []string) { },
}

// Execute adds all child commands to the root command and sets flags appropriately.
// This is called by main.main(). It only needs to happen once to the rootCmd.
func Execute() {
    rootCmd.SetVersionTemplate(rootCmd.Version)
    if err := rootCmd.Execute(); err != nil {
        fmt.Println(err)
        os.Exit(1)
    }
}

func init() {
    cobra.OnInitialize(initConfig)

    // Here you will define your flags and configuration settings.
    // Cobra supports persistent flags, which, if defined here,
    // will be global for your application.
    rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is ./timesheet.yaml)")

    // Cobra also supports local flags, which will only run
    // when this action is called directly.
    // rootCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
    rootCmd.Flags().BoolP("version", "v", false, "Prints application versions")
}

// initConfig reads in config file and ENV variables if set.
func initConfig() {
    if cfgFile != "" {
        // Use config file from the flag.
        viper.SetConfigFile(cfgFile)
    } else {
        // get current folder
        curDir, err := os.Getwd()
        if err != nil {
            fmt.Println(err)
            os.Exit(1)
        }

        // Search config in current directory "./" (without extension).
        viper.AddConfigPath(curDir)
        viper.SetConfigName("timesheet")
    }

    viper.AutomaticEnv() // read in environment variables that match

    // If a config file is found, read it in.
    if err := viper.ReadInConfig(); err == nil {
        // fmt.Println("config file:      ", viper.ConfigFileUsed())
    }

    initLogger()
    logger.Log.Info("config file ", viper.ConfigFileUsed())
}

func initLogger() {
    formatter := nested.Formatter{
        HideKeys:       true,
        NoColors:       true,
        NoFieldsColors: true,
        FieldsOrder:    []string{"component", "category"},
    }

    logger.Log.SetFormatter(&formatter)
    logger.Log.SetLevel(logrus.InfoLevel)
    logFolder := viper.GetString("logFolder")

    hook, err := lumberjackrus.NewHook(
        &lumberjackrus.LogFile{
            Filename: filepath.Join(".", logFolder, "general.log"),
            MaxSize:  100,
        },
        logrus.InfoLevel,
        &formatter,
        &lumberjackrus.LogFileOpts{
            logrus.InfoLevel: &lumberjackrus.LogFile{
                Filename: filepath.Join(".", logFolder, "info.log"),
                MaxSize:  100,
            },
            logrus.WarnLevel: &lumberjackrus.LogFile{
                Filename: filepath.Join(logFolder, "error.log"),
                MaxSize:  100,
            },
            logrus.ErrorLevel: &lumberjackrus.LogFile{
                Filename: filepath.Join(logFolder, "error.log"),
                MaxSize:  100,
            },
        },
    )

    if err != nil {
        panic(err)
    }
    logger.Log.AddHook(hook)
    logger.Log.Info("log folder ", logFolder)
}