makeshift/cmd/root.go

97 lines
2.1 KiB
Go

package cmd
import (
"fmt"
"os"
logger "git.towk2.me/towk/makeshift/pkg/log"
"github.com/rs/zerolog/log"
"github.com/spf13/cobra"
)
var (
// host string
// path string
// outputPath string
// rootPath string
// profile string
// plugins []string
// timeout int
// logFile string
loglevel logger.LogLevel = logger.INFO
)
var rootCmd = cobra.Command{
Use: "makeshift",
Short: "Extensible file cobbler",
PersistentPreRun: func(cmd *cobra.Command, args []string) {
var (
logFile string
err error
)
// initialize the logger
logFile, _ = cmd.Flags().GetString("log-file")
err = logger.InitWithLogLevel(loglevel, logFile)
if err != nil {
log.Error().Err(err).Msg("failed to initialize logger")
os.Exit(1)
}
},
Run: func(cmd *cobra.Command, args []string) {
// try and set flags using env vars
setenv(cmd, "log-file", "MAKESHIFT_LOG_FILE")
if len(args) == 0 {
err := cmd.Help()
if err != nil {
log.Error().Err(err).Msg("failed to print help")
}
os.Exit(0)
}
},
PostRun: func(cmd *cobra.Command, args []string) {
log.Debug().Msg("closing log file")
err := logger.LogFile.Close()
if err != nil {
log.Error().Err(err).Msg("failed to close log file")
}
},
}
func Execute() {
// run the main program
if err := rootCmd.Execute(); err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
}
func init() {
cobra.OnInitialize(
initLogger,
// initializeConfig,
)
// initialize the config a single time
rootCmd.PersistentFlags().VarP(&loglevel, "log-level", "l", "Set the log level output")
rootCmd.PersistentFlags().String("log-file", "", "Set the log file path (can be set with MAKESHIFT_LOG_FILE)")
}
func setenv(cmd *cobra.Command, varname string, envvar string) {
if cmd.Flags().Changed(varname) {
return
}
val := os.Getenv(envvar)
if val != "" {
cmd.Flags().Set(varname, val)
}
}
func initLogger() {
// initialize the logger
logfile, _ := rootCmd.PersistentFlags().GetString("log-file")
err := logger.InitWithLogLevel(loglevel, logfile)
if err != nil {
log.Error().Err(err).Msg("failed to initialize logger")
os.Exit(1)
}
}