go-daemon/c-daemon/go-files/info.go

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package main
import (
"log"
"os"
"runtime"
"time"
)
const ProgramName = "go-daemon"
func checkExists(path string) (bool, error) {
_, err := os.Stat(path)
if err == nil {
return true, nil
}
if os.IsNotExist(err) {
return false, nil
}
return false, err
}
func main() {
// A SAMPLE COMMAND FOR LOGGING OS INFORMATION TO A DEDICATED FILE
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// userhome, err := os.UserHomeDir() // TODO $HOME is not defined while running as daemon !!!
// if err != nil {
// log.Fatal(err)
// }
userhome := "/home/asandikci" // TEMPORARY
configDir := userhome + "/.config/" + ProgramName + "/"
// TODO Will be replaced with a Go Config Library
if flag, err := checkExists(configDir); flag {
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// log.Println("Config dir already exists")
if err != nil {
log.Fatal(err)
}
} else if err := os.Mkdir(configDir, os.ModePerm); err != nil {
log.Fatal(err)
}
osInfo := []struct {
str1, str2 string
}{
{"OS", runtime.GOOS},
{"Time", time.Now().Format("2006.01.02 15:04:05")},
}
f, err := os.Create(configDir + "cdaemon.conf")
if err != nil {
log.Fatal(err)
}
defer f.Close()
for _, info := range osInfo {
_, err := f.WriteString(info.str1 + ": " + info.str2 + "\n")
if err != nil {
log.Fatal(err)
}
}
}