cmd script to enable/disable maintenance mode in magento 1.*

mgnt-maintenance.go

package main

import (
	"fmt"
	io "io/ioutil"
	"os"
	"flag"
)

func usage() {
	fmt.Fprintf(os.Stderr, "Usage: %s [-off]\n", os.Args[0])
	/*
	Below: when registering flag var you specify default (2nd param),
	flag knows now how to print that information - neat
	 */
	flag.PrintDefaults()
	os.Exit(2)
}


// just generic results reporting
func report_result(success_message string, error error) {
	if error == nil {
		fmt.Println(success_message)
	} else {
		fmt.Println(error)
		os.Exit(1)
	}
}

func enable_maintenance() {
	error := io.WriteFile("maintenance.flag", []byte(""), 0644)
	report_result("Maintenance mode on", error)
}

func disable_maintenance() {
	err := os.Remove("maintenance.flag")
	report_result("Maintenance mode off", err)
}

func main() {
	flag.Usage = usage // this will be auto-called when running program with -h
	disable := flag.Bool("off", false, "disable maintenance") // register cmd flag
	// apparently returns pointer to bool (probably after parsing it set's the value)
	// guessing - couldn't find docs
	flag.Parse() // needs to be called after all flags registered

	if *disable == false {
		enable_maintenance()
	} else {
		disable_maintenance()
	}
}