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//
// pira32ctl
//
// Copyright (C) 2016 Christian Pointner <equinox@helsinki.at>
//
// This file is part of pira32ctl.
//
// pira32ctl is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// any later version.
//
// pira32ctl is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with pira32ctl. If not, see <http://www.gnu.org/licenses/>.
//
package main
import (
"flag"
"fmt"
"io/ioutil"
"log"
"os"
)
var (
p32l = log.New(os.Stderr, "[pira32ctl]\t", log.LstdFlags)
p32dl = log.New(ioutil.Discard, "[pira32ctl-dbg]\t", log.LstdFlags)
)
func init() {
if _, exists := os.LookupEnv("PIRA32CTL_DEBUG"); exists {
p32dl.SetOutput(os.Stderr)
}
}
type envStringValue string
func newEnvStringValue(key, dflt string) *envStringValue {
if envval, exists := os.LookupEnv(key); exists {
return (*envStringValue)(&envval)
} else {
return (*envStringValue)(&dflt)
}
}
func (s *envStringValue) Set(val string) error {
*s = envStringValue(val)
return nil
}
func (s *envStringValue) Get() interface{} { return string(*s) }
func (s *envStringValue) String() string { return fmt.Sprintf("%s", *s) }
func main() {
help := flag.Bool("help", false, "show usage")
flag.Parse()
if *help {
flag.Usage()
return
}
p32l.Printf("just started...")
p32l.Printf("shuttind down")
}
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