Files
mrvacommander/cmd/commander/main.go
Michael Hohn 12b9bd9858 wip
2024-05-10 10:07:50 -07:00

110 lines
2.2 KiB
Go

// Copyright © 2024 github
// Licensed under the Apache License, Version 2.0 (the "License").
package main
import (
"flag"
"log"
"log/slog"
"os"
"github.com/BurntSushi/toml"
)
func main() {
// Define flags
helpFlag := flag.Bool("help", false, "Display help message")
logLevel := flag.String("loglevel", "info", "Set log level: debug, info, warn, error")
mode := flag.String("mode", "standalone", "Set mode: standalone, container, cluster")
// Custom usage function for the help flag
flag.Usage = func() {
log.Printf("Usage of %s:\n", os.Args[0])
flag.PrintDefaults()
log.Println("\nExamples:")
log.Println(" go run main.go --loglevel=Debug --mode=container")
}
// Parse the flags
flag.Parse()
// Handle the help flag
if *helpFlag {
flag.Usage()
return
}
// Apply 'loglevel' flag
switch *logLevel {
case "debug":
slog.SetLogLoggerLevel(slog.LevelDebug)
case "info":
slog.SetLogLoggerLevel(slog.LevelInfo)
case "warn":
slog.SetLogLoggerLevel(slog.LevelWarn)
case "error":
slog.SetLogLoggerLevel(slog.LevelError)
default:
log.Printf("Invalid logging verbosity level: %s", *logLevel)
os.Exit(1)
}
// Read configuration
config := loadConfig("cconfig.toml")
// Apply 'mode' flag
switch *mode {
case "standalone":
// Assemble ccmem
case "container":
// Assemble cccontainer
case "cluster":
// Assemble cccluster
default:
slog.Error("Invalid value for --mode. Allowed values are: standalone, container, cluster\n")
os.Exit(1)
}
// Output configuration summary
log.Printf("Help: %t\n", *helpFlag)
log.Printf("Log Level: %s\n", *logLevel)
log.Printf("Mode: %s\n", *mode)
// Run in the chosen mode
}
type CommanderParts struct {
commander MCCommander
logger MCLogger
queue MCQueue
storage MCStorage
runner MCRunner
}
type MCConfig struct {
commander MCCConf
logger MCLConf
queue MCQConf
storage MCSConf
runner MCRConf
}
func loadConfig(fname string) *MCConfig {
if _, err := os.Stat(fname); err != nil {
slog.Error("Configuration file %s not found", f)
os.Exit(1)
}
var config MCConfig
_, err := toml.DecodeFile(fname, &config)
if err != nil {
slog.Error("", err)
os.Exit(1)
}
return &config
}